s12 paq em phy,che,bio upto sep 13

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PREVIOUS YEARS – PUBLIC EXAMINATION QUESTIONS

ROOTS GUIDES (0421 – 2225111) +2 EM

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3 MARKS

UNIT 1 - ELECTROSTATICS

(1) What do mean by additive nature of charges? (S7)

(2) State coulomb‟s law in electrostatic. (DQ,J7,10,12,M10,S11)(3) Define coulomb on the basis of Coulomb‟s law. (M6,9,S10,M13)

(4) Mention any three properties of electric lines of force. (J10,S12)

(5) What is an electric dipole moment? Define dipole moment. (S9,J11)

(6) Explain the working of microwave oven. (J8)

(7) Define electric potential at a point. (M7,J9)

(8) Why is it safer to be inside a car than standing under a tree during

lightning? (DQ, M6,10 J6,9)

(9) What is polar molecule? Give any two examples. (M7,M13)

(10) What is non-polar molecule? Give example (S10,J11)

(11) Define electric flux. Give its unit. (J8,12)

(12) State Gauss‟s law in electrostatics. (J6,S6,M11)

(13) What is electrostatic shielding? (M8)

(14) What is corona discharge? What are its advantages? (J7)

(15) What is capacitor? Define its capacitance. (M9,S12)

(16) What are the uses of capacitors? (S7,M11,12)

(17) What is corona discharge? (S8)

(18) What is meant by dielectric polarisation? (S11)

2 - CURRENT ELECTRICITY

(1) Define drift velocity. Write its unit. (M7,10,11,S8,9,10,11,J9,M10,11)

(2) Define mobility. Write its unit. (M8,S6,M9)(3) Define resistivity of a material (S12)

(4) What are the changes observed at transition temperature when the

conductor becomes superconductor? (J10)

(5) What is called superconductivity? (DQ)

(6) State ohms law. (M6,S7,9,M10,J12,S12,M13)

(7) Write any three applications of superconductors. (J6,S6,J7,S7)

(8) Define transition temperature. (M12)




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(9) Define temperature coefficient of resistance. (J8,M11)

(10) State Kirchhoff‟s (1) current law (2) voltage law (M7,M8,M9,J11,M12)

(11) Distinguish between emf and potential difference. (J7,S8,J11,12,M13)

(12) Distinguish between electric power and electric energy. (J8,J9)(13) State Faraday‟s laws of electrolysis. (M6,J10, O10)

(14) What are the applications of secondary cells? (S8,11,M12)

(15) What are the advantages of secondary cells? (DQ)

3 - EFFECTS OF ELECTRIC CURRENT

(1) What are the characteristics of heating element used in electric heating

device? (or) Why nichrome is used as a heating element? (J7, M10)

(2) Mention any two differences between Peltier effect and Joule‟s heating

effect. (M6,J12)

(3) Define Peltier coefficient and write its unit. (J6,J11,M12)

(4) Define Thomson coefficient. (S12)

(5) What is neutral temperature of a thermocouple? (S8)

(6) State Ampere‟ circuital law. (M9)

(7) State Fleming‟s left hand rule (O10)

(8) State tangent law (M11)

(9) Mention the limitations of cyclotron. (O6,J10)

(10) How a galvanometer can be converted into (i) ammeter (ii) voltmeter

(J9)

(11) How we increase the sensitivity of a galvanometer? (S9)

(12) In a galvanometer, increasing the current sensitivity does not

necessarily increase the voltage sensitivity. Explain. (M7)(13) Define ampere in terms of force (OR) Define ampere. (DQ,M8. J8,S11)

4 - ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

(1) What is electromagnetic induction? (M8)

(2) State Len‟z law in electromagnetic induction. (S8,J10)

(3) State Faraday‟s laws of EMI. (J6,J7,S7)

(4) Define coefficient of self-induction. (J9)

(5) Define the unit of self-inductance (J12)




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(6) Mention the methods of producing induced emf. (M6,O10,M11,12)

(7) State Fleming‟s left hand rule (M,S9,J11)

(8) D.C ammeter cannot be used for measuring A.C .Why? (S7)

(9) Define r.m.s value of current. (J7,S9,M13)(10) Define efficiency of a transformer. (S12)

(11) What happens to the value of current in RLC series circuit, if the

frequency of the source is increased? (DQ)

(12) A capacitor blocks d.c but allows a.c. Why? (O11)

(13) Define quality factor (O6,J11, J12,S12)

(14) Give the differences between AF choke and RF choke. (J8)

(15) State Fleming‟s right hand rule (M9,M10)

5 - ELECTROMAGNETIC WAVES AND WAVE OPTICS

(1) Write any three uses of infrared radiations. (S7)

(2) What are emission and absorption spectra? (M6)

(3) What is band emission spectrum? Give an example. (O6)

(4) What is Tyndall scattering? (M7,J9,S10,S12)

(5) Why does sky appear blue in color? (DQ, M6)

(6) State Huygens principle. (S9,11,M12)(7) Write the conditions for total internal reflection to take place. (S8)

(8) Write the differences between interference and diffraction bands.

(S7,S10)

(9) Why is the centre of Newton‟s ring dark? (M9)

(10) Distinguish between Fresnel and Fraunhofer diffractions. (M10,J12)

(11) State and Brewster‟s law. (M11)

(12) Define optic axis of a crystal. (J7)




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(13) Define specific rotation. (M8, M10)

(14) On what factors do the amount of optical rotation depends? (J8,11)

(15) In Newton‟s ring experiment the diameter of certain order of dark ring is

measured to be double that of second ring. What is the order of thering?

(S11)

(16) What are Fraunhofer lines? (M13)

6 - ATOMIC PHYSICS

(1) Write the principle of Millikan‟s oil drop experiment. (J6,M12)

(2) Explain any one of the drawbacks of the Rutherford atom model. (S8)

(3) State postulates of Bohr atom model. (DQ)

(4) What are the drawbacks of Sommerfiled atom model? (S11)

(5) Rydberg‟s constant for hydrogen atom is 1.097 x 107 m-1. Calculate the

shortest wavelength of the spectral line of its Lyman series. (S6)

(6) Calculate the short wavelength limit of Lymen series (R= 1.097 x 107 m-

1)

(S9)

(7) State Mosley‟s law. Write its equation (M7,08,S9,11)

(8) Write the applications of Mosley‟s law. (S12)

(9) Define ionization potential (M7,J9,S10)

(10) Write down two important facts of the Laue experiment on X-ray

diffraction.

(S7,J8,M13)

(11) Define ionization potential energy (J7)(12) What are the characteristics of laser? (S6,J9,M10,J10,12,S12)

(13) Write the condition to achieve laser action. (M6,J7)

(14) Write any three applications of Laser. (J8)

(15) Write any three industrial applications of Laser. (J8)

(16) Write any three medical applications of Laser. (M8,J11)

(17) What are the applications of LASER in medical field? (S9,11)

(18) What is halogram? (S7)




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7 - DUAL NATURE OF RADIATION AND MATTER AND RELATIVITY

(1) Define stopping potential (S9,S12)

(2) What is photoelectric effect? State the laws of photoelectric effect?

(M11)(2) Mention any 3 applications of photoelectric cells. (DQ,J6,M10,S10,J12)

(3) What are the limitations electron microscopes? (M6, M9,12)

(4) Mention the uses of electron microscope. (M7)

(5) According to classical mechanics, what is the concept of time? (J10)

(6) State the special theory of relativity. (S7,M13)

(7) What are inertial and noninertial frames of reference? (S6,M8)

(8) Write two fundamental postulates of special theory of relativity (M11, J9)

(9) Differentiate between inertial and noninertial frames of reference. (S11)

8 - NUCLEAR PHYSICS

(1) What is mass defect? (S10)

(2) What is α decay? Give example. (DQ,J6,M13)

(3) Write any three properties of neutron. (J6,M8,S11)

(4) What is binding energy of a nucleus? (S9)

(5) Write any 3 conclusions from binding energy curve. (S6,M8)

(2) Write any three properties of nuclear forces. (J8,M9,J11)

(3) What do you mean by artificial radioactivity (J12,S12)

(4) Define curie. (DQ, S6,M8,10,S10)

(5) Define Roentgen. (J7,S8)

(6) Write proton-proton cycle that takes place in sun and stars. (M11)

(7) Define critical volume and critical mass. (S8)(8) What are the uses of nuclear reactors? (J11,M13)

(9) What is the use of control rod in reactor? Mention any 2 control rods.

(S7)

(10) What is meant by breeder reactor? (M9)

(11) Write a note on leptons. (M12)

(12) What are cosmic rays? (J8,10)

(13) How do you classify the neutrons in terms of its kinetic energy? (J9)




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(14) What is pair production and annihilation of matter? (M6,J6,M7)

(15) Write a note on leptons. (J7)

9 - SEMICONDUCTOR DEVICES AND THEIR APPLICATIONS

(1) Define the input impedance of a transistor in CE mode (DQ,J 06)(2) Write the different methods of doping a semiconductor. (S9)

(3) What is zener diode? Draw its symbol. (S9,10)

(4) What is an intrinsic semiconductor? Give examples. (M6)

(5) What is an extrinsic semiconductor? (J6,08,S10,M11)

(6) Draw the energy band diagram of N-type semiconductor and P-type

conductor. (M10)

(7) What is meant by doping? (S8)

(8) Define output impedance of a transistor. (S8,S9)

(9) Define input impedance of a transistor in a CE mode. (J11)

(10) For a transistor to work, how is the biasing provided? (J12)

(11) Define band width. (S12)

(12) What is the necessity of modulation? (S7)

(13) What is zener break down? (S6,M8)

(14) Distinguish between avalanche breakdown and zener breakdown (M12)

(15) Mention any 3 advantages of negative feedback (M11,12)

(16) What is rectification? (M7,M9)

(17) What is light emitting diode? Give any one of its uses. (M7)

(18) Draw the circuit configuration of NPN transistor. (or) Draw the circuit

diagram of NPN transistor in CE mode. (M6,S6,M9)

(19) Define bandwidth of an amplifier. (M7)(20) What is zener diode ? (S11)

(21) What is zener break down? (J7,12)

(22) What are the advantages of negative feedback? (J7,S7.J8,M13)

(23) Give the Burkhuasen criteria for oscillations. (S7,S8J9, M10)

(24) Define bandwidth of an amplifier (O11)

(25) What is an integrated circuit? (J8)

(26) Draw the circuit diagram for an OR gate. (J6)




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(27) Draw the circuit for summing amplifier (M9,M13)

(28) State De-Morgan‟s theorem. (M8,S9,J10,M12,M13)

(29) What is an integrated circuit? (J9,S12)

(30) Mention any 3 advantages of Integrated Circuit (IC). (S6,J11)(31) Draw the circuit diagram of AND gate using diode and resistor. (J7)

(32) What are universal gates? Why are they called so? (J12)

(33) Draw NOT gate using transistor (J10,S11)

(34) What are the essential components of an LC oscillator? (S10)

(35) Mention the advantages of ICs. (DQ,S6,J8,10)

(36) Mention any three uses of cathode ray oscilloscope. (J9)

(37) Give the important parameters of OP-AMP? (S7)

(38) Draw the circuit diagram for inverting amplifier using Op Amp (M11)

(39) Draw the difference amplifier using OP-AMP (J11)

(40) Prove the Boolean identity :(A + B) (A + C) = A + BC (M11,S12)

10 - COMMUNICATION SYSTEMS

(1) What are the different types of radio wave propagation? (S11)

(2) What is meant by skip distance? (DQ,J7,M8,J9,S10,M11,J12)

(3) Define amplitude modulation (M12)

(4) Define modulation factor in AM. (M6,J11)

(5) What is the necessity of modulation? (S7)

(6) Mention the advantages of frequency modulation. (M9)

(7) Define modulation factor. (J8,S9,M10)(8) What is interlaced scanning? (S12)

(9) Write any three applications of RADAR. (J6)

(10) What is fax? Mention its use. (S6)

(11) What are the advantages of digital communications? (M7,J10,M13)

(12) Mention the three advantages of Fibre optic communication system.

(S8)

3 MARKS




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UNIT 1 - ELECTROSTATICS

(1) Three capacitors each of capacitance 9 pF are connected in series.

What is the total capacitance of the combination? (M8)

(2) Calculate the effective capacitance of the combination shown in figure(S8)

(3) Calculate the potential at a point due to a charge of 4 X 10-7C located at

0.09 m away from it. (M12)2 - CURRENT ELECTRICITY

(1) If 6.25 x 1018 electrons flow through a given cross section of a conductor

in unit time, find the current.( given charge of electron is 1.6 x 10 -19C )

(M10,J11)

(2) A manganin wire of length 2 m has a diameter of 0.4 mm with a

resistance of 70 Ω. Find the resistivity of the material. (J6,M13)

(3) The resistance of nichrome wire at 0ºC is 10 Ω. If the temperature

coefficient of resistance is 0.004/ºC, find its resistance at boiling point of

water. (DQ,J7,S7,M8,S10,11,S12)

(4) The resistance of nichrome wire at 0ºC is 4 Ω. What will be the

resistance of the wire at 100ºC if the temperature coefficient of

resistance of platinum is 0.0038/ºC? (M7,J9,J10)

(5) Two wires of same material and length have resistances 5 Ω and 10 Ω

respectively. Find the ratio of radii of the two wires. (M9)

(6) An iron box of 400 W power is used daily for 30 minutes. If the cost per

unit is 75 paise,find the weekly expense on using the iron box. (J8,12)

(7) Three resistors are connected in series with a supply as shown in the

fig. Find the voltage drop across each resistor. (S6,J10,M11)




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(8) In the given circuit, what are the total resistance and current supplied by

the battery? (S9)

(9) In the following circuit, calculate the current through the circuit. Mention

its direction. (M6)

(10) From the following network find the effective resistance between A and

B (J12)

UNIT 3 - PROBLEMS

(1) Calculate the resistance of the filament of a 100 W,220 V electric bulb

(S7)

(2) A long straight wire carrying a current produces a magnetic induction of

4 x 10-6 T at a point 15 cm from the wire. Calculate the current through

the wire. (J12)

(3) A solenoid of length 1m and 0.05 mm diameter has 500 turns. If a

current of 2 A passes through the coil, calculate coefficient of self-

inductance of the coil? (M13)UNIT 4 - PROBLEMS




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(1) An emf of 5 V is induced when the current in the coil changes at the rate

of 100 A s-1. Find the coefficient of selfinduction of the coil. (M10)

(2) If the rate change of current of 2 A s-1 induces an emf of 10 mV in a

solenoid, what is self-inductance of the solenoid? (DQ)(3) Calculate the mutual inductance between two coils when a current of 4

A changing to 8 A in 0.5 s, in one coil, induces an emf of 50 mV in the

other coil. (M6,M9)

(4) An air craft having a wingspan of 20.48 m flies due north at a speed of

40 ms1. If the vertical component of earth‟s magnetic field at the place

is 2 x 105 T, calculate the induced emf between the ends of the wings.

(J6,M8,J10, O10,M11)

(5) Wings of airplane are 10 m apart. The plane is moving horizontally

towards the north at a place where the vertical component of earth‟s mf

is 3 x 105 T. Calculate the induced emf set up between the tips of the

wings if the velocity of the aero plane is 720 km/hr. (O6)

(6) An ideal transformer has transformer ratio 1:20. If the input power and

the primary voltage are 600 mW and 6 V respectively, find the primary

and secondary currents. (S8,M9)

(7) A coil of area of cross section 0.5 m2 with 10 turns is in a plane

perpendicular to a uniform magnetic field of 0.2 Wb/m2. Calculate the

flux through the coil. (M7)

(8) A capacitor of capacitance 2 µF is in an a.c circuit with 1000 Hz. If the

rms value of applied emf is 10 V, find the effective current flowing in the

circuit. (J8)(9) Calculate the capacitive reactance of a capacitor of capacitance 2 μF in

an Ac circuit of frequency 1000 Hz . (J9)

(10) Write an equation of 25 cycle current sine wave having rms value of 30

A. (S11,M12)

(11) An LC circuit contains a capacitor 400 pF and an inductor 100 µH. It is

set into oscillations coupled to an antenna. Calculate the wavelength of

the radiated electromagnetic wave? (M13)




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UNIT 5- PROBLEMS

(1) In Newton‟s ring experiment the diameter of certain order of dark ring is

measured to be double that of second ring. What is the order of the

ring? (S11)(2) In Young‟s experiment, the width of the fringe obtained with light of

wavelength 6000 Å is 2 mm. Calculate the fringe width if the entire

apparatus is immersed in a liquid of refractive index 1.33. (J6,M11)

(3) A light of wavelength 6000 Å falls normally on a thin air film. 6 dark rings

are seen between two points. Calculate the thickness of the air film.

(S6,S7,J8,J9,J11)

(4) Two slits 0.3 mm apart are illuminated by light of wavelength 4500 Å.

The screen is placed at 1 m distance from the slits. Find the separation

between the second bright fringe on both side of the central maximum.

(S6J8, J9,J11)

(5) In Young‟s double slit experiment, the distance between slits is1.9 mm.

The distance between slits and the screen is 1m. If the bandwidth is

0.35 mm, calculate the wavelength of light used. (M12)

(6) In Newton‟s rings experiment the diameter of certain order of dark is

measured to be double that of second ring. What is the order of the

ring? (M7, J7)

(7) The refractive index of the medium is 3. Calculate the angle of refraction

if the unpolarised light is incident on it at the polarising angle. (S9,S12)

(8) A planoconvex lens of radius 3 m is placed on an optically flat glass

plate and is illuminated by monochromatic light. The radius of 8 th darkring is 3.6 mm. Calculate the wavelength of light used. (S10/3m,J12)

(9) A 300 mm long tube containing 60 c.c. of sugar solution produces a

rotation of 9º when placed in a polarimeter. If the specific rotation is 60º,

calculate the quantity of sugar contained in the solution. (M6 ,M9)

UNIT 6 - PROBLEMS




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(1) A beam of electrons moving with a speed of 4 X 107 ms-1 is projected

normal to the uniform magnetic field where B = 10-3 Wb/m-2. What is the

path of the beam in magnetic field? (M12)

(2) Rydberg‟s constant for hydrogen atom is 1.097 x 107

m-1

. Calculate theshortest wavelength of the spectral line of its Lyman series. (S6,S9)

(3) Calculate the longest wavelength that can be analysed by rock salt

crystal of spacing d = 2.82 Å in first order (J6,S8,M9,J10,O10,M11,J12)

(4) In Bragg‟s spectrometer, the glancing angle f or first order spectrum was

observed to be 8º . Calculate the crystal lattice spacing, if the

wavelength of the X-ray is 0.7849 Å. (DQ)

(5) An Xray diffraction of crystal gave the first line at an glancing angle of

6º27‟. If the wavelength of X-ray is 0.58 Å, find the distance between

two cleavage planes. (M6)

(6) How much should be the voltage of an X-ray tube so that the electrons

emitted from the cathode may give an X-ray tube so that electrons from

the cathode may give an X-ray of wavelength 1 Å after striking the

target? (J7,M13)

(7) Find the minimum wavelength of X-rays produced by an X-ray tube

operating at 1000 kV. (M10)

(8) The minimum wavelength of X-rays produced by Coolidge tube is 0.05

nm. Find the operating voltage of Coolidge tube. (J11)

UNIT 7 - PROBLEMS

(1) What is de-broglie wavelength of an electron of kinetic energy 120 eV?

(J7J8,S12/5m)

(2) Calculate the threshold wavelength of certain metal of work function 1.8

eV. (S8)

(3) Find de Broglie wavelength of electron in 4th orbit of hydrogen atom.

(J11)

UNIT 8 - PROBLEMS




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(1) Select the pairs of isotopes, isobars and isotones from the following

nuclei: 11Na22, 12Mg24, 11Na24, 10Ne23 . (M12)

(2) The half life of radon is 3.8 days. Calculate its mean life. (M7,S9,J10)

(3) The halflife of 84Po218

is 3 minutes. What percentage of the sample hasdecayed in 15 minutes? (S7)

(4) The radioactive isotope 84Po214 undergoes a successive disintegration

of two α decays and two β decays. Find the atomic number and mass

number of the resulting isotope. (J9)

(5) Tritium has a half-life of 12.5 years. What fraction of the sample will be

left over 25 years? (M10)

(6) Tritium has a half-life of 12.5 years. What fraction of the sample will be

left over 50 years? (J12,S12)

(7) What percentage of given radioactive substance will be left afte 5 half-

life periods? (M11)

(8) Calculate the number of atoms in one gram of 3Li6 . ( Avagadro number

= 6.023 x 1023 ) (S11)

UNIT 9 - PROBLEMS

(1) Find out the output of the amplifier circuit given below (J7)

(2) The outputs of two NOT gates are NORed as shown in fig, what is the

logic operation performed? (S7)

(3) Find out output Y of the logic circuit given below (S8)




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(4) Find output of the ideal OP-AMP shown in fig. for the input Vin = 120 mV

direct current. (J8,M12)

(5) Give the Boolean equation for the logic diagram. (M9)

(6) Find output of the given circuit (J9)

(7) What is the Boolean expression for the logic diagram shown in fig.

Evaluate its output if A =1, B = 1, and C =1. (M10)

(8) Give the Boolean expression for the given logic diagram (J11)




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(9) The gain of an amplifier is 100. 5% of the output voltage is feedback

into the input through a negative feedback network, find out the voltage

gain after feedback. (DQ,S11)

(10) The gain of an amplifier without feedback is 100 and with positive

feedback is 200, Calculate the feedback fraction. (M6)

(11) When the negative feedback is applied to an amplifier of gain 50, the

gain falls to 25. Calculate the feedback ratio. (J6,S9, M10,S10)

(12) The voltage gain of an amplifier without feedback is 100. If negative

feedback is applied with feedback fraction β = 0.1, calculate the voltage

gain after feedback. (S6)

(13) When there is no feedback the gain of an amplifier is 100. If 5% of the

output voltage is fed back into the input through a negative feedback

network, find out the voltage gain after feedback. (M7)

(14) A transistor is connected in CE configuration. The voltage drop across

the load resistance (Rc) 3 KΩ is 6V. Find the base current. The current

gain β of the transistor is 0.97. (M8,J10)

(15) The base current of a transistor is 50 µA and collector current is 25 mA.

Determine the values of α and β. (S12,M13)

1 - ELECTROSTATICS

(1) Write the properties of electric lines of force. (M7,S7,M8,10,11, S11,,M13)

(2) Derive an expression torque experienced by an electric dipole placed in

a uniform electric field. (S10,12)

(3) Deduce an expression for capacitance of a parallel plate capacitor (J10)

(4) Prove that the energy store in a capacitor is q2/2C. (M12)

2- CURRENT ELECTRICITY

(1) Write any five applications of superconductors. (S8,M9,J11,S12,M13)




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(2) Discuss the variation of resistance with temperature with an expression

and a graph. (J12)

(3) If two or more resistors connected in parallel, derive an expression for

effective resistance in combination (S6)(4) Explain the determination of internal resistance of a cell using a

voltmeter. (S9,J11,M13)

(5) State and explain Kirchhoff‟s second law for electrical network. (S7)

(6) Obtain condition for bridge balance in Wheatstone‟s bridge.

(DQ,M6,J6,S6,M8,J9,M10)

(7) Explain the method of compare the emfs of two cells using

potentiometer. (DQ,M7,S10,11,M12)

(8) State and verify Faraday‟s first law of electrolysis. (S9)

(9) State and verify Faraday‟s second law of electrolysis. (J6,M8,M11)

(10) Explain the working of Daniel cell with diagram. (S8,J9,10,M11)

(11) Explain the working of Leclanche cell with diagram. (J7,J9,S12)


(1) What are the special features of magnetic Lorentz force? (J7,M11)

(2) State and explain Biot -Savart law. (J9)

(3) Explain the conversion of galvanometer into an ammeter. (M8,J12)

(4) Explain how will you convert a galvanometer into a voltmeter.

(M10,J11,M12)


(1) State Faraday‟s laws and Lenz‟s law in electromagnetic induction. (J11)

(2) Explain any two applications of eddy current. (M10)(3) Define efficiency of a transformer. Explain the various losses of a

transformer? Explain how they can be minimized?

(DQ,J10,M11,M13,J6, S6,S9,J10)

(4) Obtain the phase relation between current and voltage in an A.C with an

inductor only. (graph not necessary) (M6)

(5) Explain how induced emf can be produced by changing the area

enclosed by the coil? (J7,S7, S8,12, M9)




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(6) Obtain an expression for the current flowing in a circuit containing

resistance only to which alternating emf is applied. Find the phase

relationship between voltage and current. (S11,J12)

5- ELECTROMAGNETIC WAVES AND WAVE OPTICS

(1) Derive an expression for radius of nth dark ring in Newton‟s ring

experiment (DQ,J11,M12)

(2) State and prove Brewster‟s law. (J6,S6, J7,08, M9,J10,S12,M13)

(3) Write a note on pile of plates. (M6, J9)

(4) Write a note on Nicol prism. (M7,S9,11)

6- ATOMIC PHYSICS

(1) Write any five properties of cathode rays. (S8 ,J9)

(2) Prove that the energy of electron for hydrogen atom in the nth orbit is

En = - me4 /8ε02n2h2 (S7)

(3) Explain the spectral series of hydrogen atom. (DMP,M6,

M10,J10,M12,M13)

(4) Mention any five properties of X-rays. (J6)

(5) Explain the origin of characteristic X-rays. (M9,11,J12,S12)

(6) What is characteristic X- ray spectrum? Explain its origin. (J11)

(7) Describe Laue‟s experiment. What are the facts established by it? (S6)

(8) State and obtain Bragg‟s law (J8,S9,11)

DUAL NATURE OF RADIATION AND MATTER AND RELATIVITY

(1) Define work function. State the laws of photoelectric emission.

(M7,M9,M11,S11)

(2) What is photoelectric effect? State the laws of PEE. (M9,11,S11)(3) Explain construction & working of photo emissive cell with diagram. (S8)

(4) Write any five applications of photoelectric cells. (S6,J7,M8,J8,09,M12)

(5) Obtain Einstein‟s photoelectric equation (DQ,M6,J6,S9, M10,J10,S12)

(6) Explain the wave mechanical concept of atom. (S7,M9)

(7) Derive an expression for de-Broglie wavelength of matter waves.

(S6,M7,J10,S10,J11,12,M13)




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(8) Explain Lorentz - Fitzgerald contraction with an example. (or) Explain

length contraction. ( M6,08,10,S10,S11)

(9) Explain time dilation with an example. (J6,J8)

(10) At what speed is particle moving if the mass is equal to three times itsrest mass? (S8)

(11) Establish Einstein‟s mass energy equivalence E = mc2 (DQ, J7)

8 - NUCLEAR PHYSICS

(1) Give an explanation for the binding energy curve. (J10)

(2) Explain Soddy-Fajan‟s radioactive displacement laws (M11)

(3) Write notes on biological hazards of radiations. (S8)

(4) Explain the latitude effect of cosmic rays. (J9)

(5) Explain how cosmic ray shower is formed. (M7,J12)

(6) Explain the latitude effect of cosmic rays. (S7)

(7) Write the properties of α rays. (S10,S10)

9 - SEMICONDUCTOR DEVICES AND THEIR APPLICATIONS

(1) Explain the working of a half wave diode rectifier. (M9,J11,M10,M13)

(2) Explain the working of bridge rectifier with neat diagram (S9)

(3) Explain the action of zener diode as a voltage regulator with necessary

circuit. (S12)

(4) Draw the frequency response curve of single stage CE amplifier and

discuss the result. (DMP, M8)

(5) Define current amplification factors α and β and obtain the relation

between them. (J7)

(6) Explain the function of transistor as a switch. (S7)(7) With the help of circuit diagram, explain the voltage divider biasing of a

transistor. (M7,J9)

(8) What is AND gate? Explain the function of AND gate using electrical

circuit and using diodes. (J8)

(9) State and prove De-Morgan‟s theorem. (M6,M10,O10,11)

(10) Explain the circuit symbol and pinout configuration of an operational

amplifier. (S8)




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(11) Explain the function of an operational amplifier as a summing amplifier.

(J12)

10 - COMMUNICATION SYSTEMS

(1) Explain the space wave propagation of radio waves. (O6)(2) What are the advantages and disadvantages of digital communication?

(M6,J6,J8)

(3) Draw the functional block diagram of AM radio transmitter. (O7,J10)

(4) Explain with the help of block diagram, the function of FM radio

transmitter. (O8,09,10,J11,S12)

(5) With the help of a functional block diagram, explain the operation of a

superheterodyne FM receiver. (M9)

(6) Mention the merits and demerits of digital communication. (J9,12)

(7) What is an optical fibre? Mention the advantages of optical

communication system. (J7,M8,O11)

(8) Mention the principle of RADAR and write its applications.

(M7,10,12,M13)

+2 – PHYSICS – IMPORTANT – 10 MARKS QUESTIONS

1.ELECTROSTATICS

(1) What is an electric dipole? Derive an expression for the electric field

due to an electric dipole at a point on its axial line.

(DM,M6,J6,J8,M9,11,S11)

(2) Derive an expression for the electric field at a point due to an electric

dipole at a point along the equatorial line. (M7,J9)

(3) Derive an expression for the electric potential at a point due to anelectric dipole. Discuss the special cases. (S6,M8,J8,M10,M13)

(4) State Gauss law. Using gauss law, obtain the expression for electric

field due to an infinitely long straight uniformly charged wire. (J11,M12)

(5) Deduce an expression for equivalent capacitance of capacitors

connected in (1) series and (2) in parallel. (J7,S7)

(6) Explain the principle, construction and working of a Vande Graff

generator. (S8,S9,S12)




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(1) State Joule‟s law. Explain Joule‟s calorimeter experiment to verify

Joule‟s laws of heating. (J7,12)

(2) Applying Biot-savart‟s law, derive an expression for magnetic inductiondue to an infinitely long straight conductor carrying current. Write the

expression for the magnetic induction when the conductor is placed in a

medium of permeability μ. (J6,S9,M6,M10)

(3) Deduce the relation for the magnetic induction at a point along the axis

of a circular coil carrying current (S7,M8,M12)

(4) Explain in detail the principle, construction, working and limitations of

cyclotron with a diagram. (M7,S10,11)

(5) Discuss the motion of the charged particle in uniform magnetic field.

(DM,J10,M11,M13)


(1) Discuss with theory, the method of inducing emf in a coil by changing its

orientation with respect to the direction of the magnetic field.

(DM,J8,S9, M10,J10,S11,M13)

(2) Describe the principle, construction and working of a single phase a.c

generator. (M7, J7,S7,M8,S10,M11,J11,12)

(3) Explain the principle, construction and theory of a transformer. (Diagram

not necessary). Define its efficiency. Mention the energy losses.

(M6,M12)

(4) What are eddy currents? Explain their applications. How are they

minimized? (M9)(5) A source of an alternating e.m.f. is connected to a series combination of

resistor R, an inductor L and a capacitor C. Obtain with the help of a

voltage phasor diagram and impedance diagram, expressions for (i)

effective voltage (ii) the impedance (iii) phase relationship between the

current and voltage. (J6,J9, S12)

5 - ELECTROMAGNETIC WAVES AND WAVE OPTICS

(1) Explain the emission and absorption spectra. (J9,M10,M12, J12,S12)




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+2 CHEMISTRY- MOST IMPORTANT- 3 M - QUESTIONS

(2) What is Raman scattering? Explain Raman scattering with energy level

diagram. (M7,S7,M8,J11,M13)

(3) What is known as interference of light? Derive an expression for

bandwidth of interference fringes in Young‟s double slit experiment.(DM,S6,J7,10, M9,S10,M11,S11)

6 - ATOMIC PHYSICS

(1) Derive Bragg‟s law. Explain how Bragg‟s spectrometer can be used to

determine the wavelength of X –rays? (J7)

(2) Describe the J.J Thomson method of determining the specific charge of

an electron. (S9,10,11M10,J10,J12)

(3) Explain Millikan‟s oil drop experiment to determine the charge of an

electron. (J8,S8)

(4) State Bohr‟s postulates. Obtain an expression for the radius of nth orbit

of hydrogen atom. (M6,M8,J9,M12)

(5) Draw a neat sketch of Ruby Laser. Explain its working with the help of

energy level diagram. (S6,S7, M9,J11,S12,M13)

(6) With the help of energy level diagram explain the working of He-Ne

laser. (DM, J6)

8 - NUCLEAR PHYSICS

(1) Describe Bainbridge mass spectrometer to determine the isotopic

masses of nuclei. (DQ,J6,J7, S7,8,M9,J10,S10,J11,S12)

(2) Explain the construction & working of GM counter. (M7,S7,J9,M11)

(3) Obtain an expression for the amount of radioactive substance present

at any moment. Obtain the relation between half-life and decayconstant. (S8,S9,M12)

(4) What are cosmic rays? Explain latitude effect of cosmic rays. (M8,M10)

(5) What is a nuclear reactor? Explain the functions of (i) moderator (ii)

control rods and (iii) neutron reflector. Mention the uses of nuclear

reactor. (Diagram not necessary) (M6)




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CHAPTER 1. ATOMIC STRUCTURE

1. What do you understand by dual character of matter?

2. Distinguish between a particle and a wave. (J6)

3. Give any three methods of verifying the particle character of matter.4. State Heisenberg‟s Uncertainty Principle. (B) (M6,8,11,S7,9)

5. Give the debroglie equation and mention the terms.

6. Give the applications of de Broglie concept.

7. Give the significance of de Broglie concept.

8. What is the significance of negative electronic energy? (B) (J8,9,10)

9. Write about the shape of „s‟ orbital.

10. Write about the shape of „p‟ orbital.

11. Write about the shape of „d‟ orbital.

12. What are molecular orbital?

13. What is bond order? (B) (M10,J7,S8)

14. Draw the molecular orbital diagram of Hydrogen molecule.

15. Why is He2 not formed? (or) Draw the molecular orbital diagram of Helium

molecule. (B) (M7)

16. Define Hybridisation. (B) (M9)

17. Predict the hybridization of (a) BCl3 (b) NH4+1 (c) CO3

-2

18. What is hydrogen bonding?

19. What are the conditions for effective H2-bonding? (J11,S6)

20. Give the three importance of hydrogen bonding.

21. Calculate the momentum of a particle which has a de-Broglie wavelength

of 1 ÅCHAPTER 2.PERIODIC PROPERTIES

1. Define Ionisation energy.

2. Define electron affinity. (M8)

3. Define electronegativity.

4. What is inert pair effect? (M9)

5. Why is electron affinity of fluorine less than that of chlorine?

(B)(M6,8,13,S7,S9,10)




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6. Why is the first ionisation energy of Beryllium greater than that of Lithium?

(J6,11)

7. Explain why the first ionisation energy of „Be‟ is greater than that of „B‟.

(S6)8. Compare the ionisation energy of Nitrogen with that of Oxygen? (M7)

9. Compare the ionisation energy of Boron and Carbon. (J12)

10. The Ionisation energy of Nitrogen is greater than that of Carbon. Give

reason.

11. The Ionisation energy of Neon is greater than that of Fluorine.Give reason.

(S9,J10)

12. Mention the Disadvantage of Pauling‟s and Mullikan‟s electronegativity

scale. (B)(S8)

13. Why is the ionization energy of Fluorine greater that of Oxygen? (M9)

14. The electron affinities of Beryllium and Nitrogen are almost zero. Why?

(M10)

15. The electron affinities of noble gases are zero. Why?

16. The electron affinities of group 17 elements are high. Why?

17. Calculate the electronegativity of fluorine by Mulliken scale. The ionization

energy of fluorine is 17 eV/atom. The electron affinity of fluorine is 3.62

eV/atom. (M11)

18. If the d(C-Cℓ) is 1.76 Å and r (Cℓ) is 0.99 Å. Find the radius of carbon

atom? (B)(J7)

19. Calculate the effective nuclear charge experienced by the 4s electron in

potassium atom. (S=16.8) (S7,12)CHAPTER 3. p- BLOCK ELEMENTS

1. What is inert pair effect? (M9)

2. How is potash alum prepared? (M8)

3. Mention the uses of potash alum. (J12)

4. What is plumbo solvency? (B) (J6,7,9,S6,M10,13)

5. What is the action of lead with con. HCl?




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6. Illustrate the dehydration property of phosphorous pentoxide (P2O5) with

two examples. (B) (M7,9,J10,S6,12)

7. Give the electronic structure of (i) H3PO4 (ii) PCℓ3 (iii) H4P2O7

8. Give the electronic structure of (i) H3PO3 and (ii) PCℓ5. (S8,J11)9. Prove that phosphorous acid is a powerful reducing agent. (J6, M7)

10. H3PO3 is diprotic. Why? (S9,M10)

11. What happens when phosphorus acid is heated? (J9)

12. How is phosphoric acid prepared in the laboratory? (J8)

13. H3PO4 is triprotic. Prove. (M6,13)

14. What is the action of heat on orthophosphoric acid? (M11)

15. Give one test for orthophosphoric acid.

16. Give the uses of orthophosphoric acid.

17. How is phosphine prepared in the laboratory?

18. Prove that phosphine is a powerful reducing agent.

19. Write about the Holme‟s signal (S7,9)

20. Write three uses of fluorine. (S12)

21. Illustrate the oxidising power of fluorine. (B)(J7)

22. How is HF prepared?

23. What is etching of glass?

24. Why is HF not stored in silica or glass bottles? Write the equation. (M7,11)

25. Write the preparation of ClF, ClF3 , ClF5 and IF7. (J12)

26. What are interhalogen compounds? Give the preparation of any one. (B)

(S8)

27. Interhalogen compounds are more reactive than halogens. Why?28. Give three uses of Neon. (B) (J8,10,S10)

29. Write the uses of Helium. (S7)

30. Give the uses of argon, krypton and xenon.

CHAPTER 3. d- BLOCK ELEMENTS

1. What are “d” block elements?

2. How are “d” block elements classified?




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3. Why does Mn(II) show maximum paramagnetic character among the

bivalent ions of the first transition series?

4. Explain why Mn2+ is more stable than Mn3+. (B) (M6,J12)

5. A substance is found to have a magnetic moment of 3.9 BM. How manyunpaired electrons does it contain? (B) (M6)

6. Find the magnetic moment of Fe+2 ion.

7. Zn, Cd, Hg do not form colourless compounds. Why?

8. Sc+3 and Zn+2 ions are colourless. Why?

9. Why do transition elements form complexes? (B) (J6,S7)

10. Why do d – block elements have variable oxidation state? (B) (S6,J7,M13)

11. Why are Zn2+ salts colourless while Ni2+ salts are coloured? (B)(J9,S12)

12. Why are transition metal ions coloured? (S9)

13. Most of the transition metals and their compounds have catalytic activity.

Why?

14. Why do transition metals form alloys?

15. How is chrome – plating done? (S6,M8)

16. Write two alloys of copper and their uses.

17. Explain electrolytic refining of copper. (J7)

18. What is spitting of silver and how is it prevented? (S7,M13)

19. What is Philosopher‟s wool? How is it prepared?

20. What is the action of Zinc on hot NaOH solution? (S8)

21. Give any two evidences for the oxidising nature of potassium dichromate.

(J6)

22. What happens when K2Cr 2O7 is heated?23. Explain Chromyl chloride test with equation. (M9)

24. What is blue vitriol and how is it prepared?

25. What is the action of heat on copper sulphate crystals? Write the equation.

26. What is the reaction of CuSO4 with NaOH and ammonia?

27. What is the reaction of CuSO4 with KCN?

28. What happens when KI solution is added to an aqueous solution of copper

sulphate? (S9)




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29. What is the reaction of CuSO4 with H2S?

30. How is Lunar caustic prepared? (S12)

31. What happens when AgNO3 is heated?

32. What is aqua regia? Write the action of aqua regia on gold. (M7)33. What is calamine and how is it prepared?

34. What is purple of cassius and how is it prepared?

CHAPTER 7.NUCLEAR CHEMISTRY

1. Define radioactivity.

2. What is half life period?

3. Explain the principle behind the „Hydrogen bomb”. (B)(M6,10)

4. What is binding energy? (S12)

5. What is the Q value of a nuclear reaction? (B)(J6)

6. Give any three differences between chemical reactions and nuclear

reactions. (B)(S6)

7. What is radiocarbon dating?

8. Write the uses of Radiocarbon dating. (B) (M11)

9. Give the different types of radiations.

10. What is radioactive decay series? Give the types of series.

11. What is nuclear fission?

12. What is nuclear fusion?

13. Give any three differences between nuclear fission and nuclear fusion.

14. Give any three isotopes used in medicine.

15. The atomic masses of Li, He and Proton are 7.01823 amu, 4.00387 amu,

and 1.00715 amu respectively. Calculate the energy evolved in thereaction,

3Li7+1H1 2 2He4+ energy (1 amu = 931 MeV) (B) (M7)

16. Calculate the disintegration constant in seconds if half life period is 100

seconds. (J7,9)

17. Determine the average life of U238 having t1/2 = 140 days. (M13)

18. How many and particulars will be emitted by an element 84 A218 in

changing to a stable isotope of 82B206? (M9)




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CHAPTER 8. SOLID STATE - II

1. Define Unit cell.

2. What are superconductors? Give any one of its applications. (B)

(M6,10,13J6,8,S6)3. What is a Vitreous state? (B) (S6,S7)

4. What is imperfection in solids?

5. What is coordination number?

6. Write a note on the assignment of atoms per unit cell in FCC/BCC/SC.

7. Write a short note on Metallic/covalent crystals.

8. Write a note on ionic crystals.

9. Give any three properties of ionic crystals.

10. Determine the number of CsCℓ units per unit cell. CsCℓ has BCC

arrangement. (B) (M7)

11. What is meant by superconducting transition temperature? (J7)

12. Write a note on Molecular crystals. (M8)

13. Write a note on Frenkel defect. (J8)

14. Write a note on Schottky defect.

15. Sketch the following lattices : (B) (M9,J12)

(a) Simple cubic (b) Face – centred cubic (c) Body centred cubic

16. How are glasses formed? (B) (S9,12)

17. Give the properties of glass.

18. State the uses of super conductors. (B) (J10,S10)

19. State Bragg‟s law and mention the terms.

CHAPTER 9. THERMODYNAMICS - II 1. What is entropy? What is its unit? (B) (M6)

2. What is Gibbs‟ free energy? (B) (J6)

3. What types of liquids or substances deviate from Trouton‟s Rule? (S6,J11)

4. Give the Kelvin-Planck statement of second law of thermodynamics.(B)

(M7,S12)

5. State Claucius statement of second law of thermodynamics. (B) (J7)

6. When does entropy increases?




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7. Mention the essential condition for spontaneity in a chemical reaction.

8. Give entropy statement of second law of thermodynamics. Mention the

unit of entropy also. (S8)

9. State Trouton‟s rule. (S9) 10. Give the limitations of Trouton‟s rule.

11. How is G and S? What is the meaning of G=0? (B) (S10)

CHAPTER 10.CHEMICAL EQUILIBRIUM - II

1. State Le Chatelier‟s principle. (B)(M6,7,10,13)

2. What happens when ng = 0, ng = -ve, ng = +ve in a gaseous reaction?

(J7)

3. Define reaction quotient. (S7)

4. What is the relationship between formation equilibrium constant and

dissociation constant? (M8)

5. What is the Reaction quotient? How is it related to equilibrium constant?

(J8)

6. Dissociation of PCℓ5 decreases in the presence of increase in Cℓ2 Why?(B)

(M9,J11)7. What is equilibrium constant? (B) (S9)

8. Why is chemical equilibrium called as dynamic equilibrium? (B) (M11)

9. Give the factors that affect the equilibrium of a reaction.

CHAPTER 11. CHEMICAL KINETICS - II

1. Give the factors which affect the rate of a chemical reaction.

2. Define rate law.

3. Define order of a reaction. (B) (J7)

4. Write any three characteristics of order of a reaction.

5. Give three examples for first order reaction. (S12)

6. Derive an equation for the half-life period of a first order reaction. (B) (S8)

7. The half –life period of a first order reaction is 20 min. calculate the rate

constant.(M6)

8. What is pseudo first order reaction? Give an example. (M8)

9. Write the Arrhenius equation and explain the terms. (B) (M7,13)




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10. Define Activation energy. (B)(S7,M8)

11. What are the simple and complex reactions? (B) (S7)

12. Give any three differences between simple and complex reaction.

13. What are complex reactions? Give an example. (B) (S8) 14. What are consecutive reactions? Give an example. (J6,S6,12)

15. What are parallel reactions? Give an example. (M7,J12)

16. What are opposing reactions? Give an example. (J7)

17. Give the three examples for opposing reactions. (B) (M6,13,J9,S12)

CHAPTER 12. SURFACE CHEMISTRY

1. Define adsorption.

2. Give three differences between physical adsorption and chemical

absorption.(S9)

3. Mention the factors which affect adsorption.

4. Write any three general characteristics of catalytic reaction. (M11)

5. What is heterogeneous / homogenous catalysis? Give an example. (M8)

6. Write a note on Auto/positive/negative/induced catalyst? (S6)

7. What is catalytic poison? Give an example. (J7)

8. What promoters? Give an example. (M10,J8,10)

9. What are active centres? (J12)

10. Define colloidal solution. (S12)

11. Why colloids are purified?

12. Why a colloidal system of gas in gas is does not exist? (B) (M7)

13. What is peptisation? Give an example. (S8)

14. What is Brownian movement? Give reason. (M9)15. What is Tyndall effect? (B)(S10,J11)

16. What is Electrophoresis? (B)(M6,13,J10)

17. What is electrodialysis? (M6,J10)

18. What are emulsions? (B) (J6)

19. What is Tanning? (S7)

CHAPTER 13. ELECTROCHEMISTRY- I

1. Define Faraday.




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2. What are insulators?

3. State Faraday‟s first and second laws of electrolysis. (M6)

4. Define electrochemical equivalent. What is its Unit? (B)(J9)

5. State Faraday‟s second laws of electrolysis. (M13) 6. State Kohlrausch‟s law. (J6,S8,9,12)

7. The mass of the substance deposited by the passage of 10ampere of

current for 2 hours 40 minutes and 50 seconds is 9.65 g. Calculate the

electro -chemical equivalent. (M7)

8. Define equivalent conductance. Give the equation for it. (B)(J8)

9. Define molar conductance. Give the equation for it.

10. State Ostwald‟s dilution law. (B)(M9)

11. What is ionization of water and ionic product of water?

12. What is meant by common ion effect? Give an example. (B)(S6,J7,S7,M8)

13. Define PH .

14. What is buffer solution? Give example. (J10,11,12,S10)

15. What is buffer action?

16. What is titration curve? Give its use.

17. What is Henderson‟s equation?

18. Give the significances of Henderson‟s equation.

19. What are indicators?

CHAPTER 15. ISOMERISM IN ORGANIC CHEMISTRY

1. What is cis-trans isomerism?

2. Trans isomer is more stable than cis isomer Why? (J11)

3. Give the differences between cis and trans isomers.4. Give the conditions for cis – trans isomerism.

5. Label the following as E, Z isomers : (B)(J7)

(i) (ii)

6. Identify Cis – Trans isomer from the following : (S8)

Cℓ H

C||C

Br F

CH3 CH2OH

C||C

CH2OH H

H3

Br

C = C

H H Br

BrH3

CH3

C = C




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(i) (ii)

7. What are optical isomers? Give example. (J8)

8. What are the conditions for a compound to be optically active? (S7)9. Meso tartaric acid is an optically inactive compound with asymmetric

carbon atoms. Justify your answer. (B) (M6,10,13,S6)

10. Differentiate diasteriomer from enantiomer. (B) (J6,12)

11. What is racemic mixture? Give an example. (B)(M8)

12. Distinguish between racemic and meso forms. (B)(M7,11,J10,S10,12)

CHAPTER 16. HYDROXY DERIVATIVES

1. How will you convert C2H5OH to C2H5 - O - C2H5? (B)(J7)

2. Alcohols cannot be used as a solvent for Grignard reagents. Why?

(B)(M8)

3. Give a chemical test to distinguish between ethanol and methanol. (B)(S8)

4. How are 1-propanol and 2-propanol distinguished by oxidation method?

(J12)

5. How will you convert 2methyl 1-2 propanol into 2-methyl propene?

(M11,J9)

6. How can the consumption of alcohol by a person be detected? (B)(M6)

7. What happens when ethylene reacts with cold dilute alkaline KMnO4?

(B)(J9)

8. Why is glycol more viscous than ethanol? (B)(J6)

9. How is ethylene glycol concerted into dioxan? (B) (M8,S8,J12)10. How is Terylene prepared from glycol? (B)(M9,11,J10)

11. How is glycerol synthesized from propylene? (B)(J8)

12. What happens when glycerol reacts with KHSO4? (B)(M7,10,J11,S10)

13. How is allyl alcohol obtained from glycerol.? (B)(S7)

14. What is glycerose? How is it prepared from glycerol? (M13)

15. How is formic acid obtained from glycerol? (S12)

16. Give any three uses of benzyl alcohol. (B)(S6)




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17. Phenols are soluble in alcohols. Why? (B)(J10)

18. How will you convert phenol into picric acid? (B) (S10)

19. Explain Dow‟s process. (B)(M10,J7)

20. How will you convert phenol to phenolphthalein? (B)(M6,9,13,J6)21. How is phenol identified? (B)(M9)

22. Give a brief account on coupling reaction of phenol with benzene

diazonium chloride./ Write the dye test for phenol. (B)(S6,9,12,J11,S7)

23. Phenol is insoluble in NaHCO3 solution but acetic acid is soluble. Give

reason. (B)(M7)

24. Give Reimer-Tiemann reaction.

25. Write a note on Kolbe‟s reaction. (B)(J8)

26. Write about Pthalein fusion reaction.

27. Give the Schotten Baumann reaction.

CHAPTER 18. CARBONYL COMPOUNDS

1. Give the IUPAC names for the following. (B)(M6,13)

(i) Crotonaledehyde (ii) Methyl n- propyl ketone (iii) Phenylaceteledehyde/

Benzaldehyde

2. How is acetophenone prepared by Friedel Crafts method? (B)(M7,9,11)

3. What is Rosenmund`s reduction?What is the purpose of adding BaSO4

it?(B)(S7)

4. How does formaldehyde react with ammonia? (B)(J6)

5. How is urotropine prepared? Mention its use. (B)(M8,10,J9,11,12,S6,9,10)

6. What is formalin? Write its use. (B)(J7)

7. Write two tests to identify aldehydes. (B)(J8)8. What happens when benzaldehyde is heated with concentrated NaOH?

(S12)

9. Explain haloform reaction with an example. (B)(S8)

10. Write briefly on Clemmensen‟s reduction. (J10)

CHAPTER 19. CARBOXYLIC ACIDS

1. What is esterification?

2. What is trans-esterification? (M6)




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3. What is meant by esterification reaction? Write the equation. (B)(J6)

4. Write a note on HVZ reaction. (S6)

5. Mention the uses of oxalic acid. (B)(M7,9,J11)

6. Give the source and trivial name of (i)HCOOH(ii)C3H7COOH (iii)C11H23COOH(B)(J9)

7. Formic acid reduces Tollen‟s reagent but acetic acid does not. Give

reasons. (B)(S7,9,10,J12)

8. What is the reaction of lactic acid with dil.H2SO4? (B)(M8)

9. How is methyl salicylate prepared? (J8)

10. Account for the reducing nature of formic acid with suitable illustration.

(B)(S8)

11. Write two tests to identify carboxylic acids. (B)(M13,J9)

12. Give the identification tests for salicylicacid. (M10)

13. Mention the use of benzonic acid. (J10)

14. What is aspirin? How is it prepared? (M11)

CHAPTER 20. ORGANIC NITROGEN COMPOUNDS

1. What is Gabriel‟s Phthalimide synthesis? (B)(M7,J10,11,S6,7,8)

2. Explain diazotisation with a suitable example. (B)(J7,9)

CHAPTER 22. CHEMISTRY IN ACTION

1. Write a brief note on „Antiseptic‟. (S6)

2. What are antipyritics? Give an example. (M13)

3. What are Anaethetics? Give an examples. (B)(J7,8,S10,12)

4. In what way are antacids important? (B)(S7,J12)

5. Why are iodoform and phenolic solutions called antiseptic? (B)(M8)6. Write a note on antibiotics. (B)(J10)

7. What are Chromophores? Give two examples. (B)(M7,10,J9)

8. Write any three characteristics of dyes. (B)(M11)

9. Write a brief note on Polyethene. (B)(J6,11)

10. Write a brief note on Polystyrene. (B)(J6,11)

11. Write a brief note on Buna – S. (B)(J6,11)

12. Write one method of preparation of Buna-N (S8)




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+2 CHEMISTRY- MOST IMPORTANT- 5 M - QUESTIONS

13. How is nylon-66 prepared? Give one of its uses. (M9)

14. What are artificial sweeting agents? Give two examples. (B)(S9)

15. What are food preservatives?

16. What are antioxidants?

CHAPTER 1. ATOMIC STRUCTURE

1. Derive de Broglie‟s equation. (B)(M11,J7,S6)

2. Discuss Davisson and Germer‟s experiment. (B)(M7)

3. Give any five postulates of molecular orbital theory. (B)(M8,J,S12)

4. Explain the formation of oxygen / nitrogen molecule by molecular orbital

theory. (B)(M6,10,13,J6,S7) / (J8,9,11,S8,10)

CHAPTER 2. PERIODIC PROPERTIES

1. Explain Pauling‟s method to determine ionic radii. (B)(M6,J10,S9,10)

2. Explain the various factors that affect electron affinity / ionization energy.

(M7,9,J6,7,11,12,S6)/ (B)(J8)

3. How do electronegativity values help to find out the nature of bonding

between atoms? (M11,J7,S7)

4. Explain the Pauling scale for the determination of electronegativity. Give

the disadvantage of Pauling scale. (M8,13,S12)

5. Explain how electronegativity values help to find out the percentage of

ionic character in polar covalent bond. (S8)

CHAPTER 3. p- BLOCK ELEMENTS

1. What are silicones? How are they prepared?2. Mention the use of silicones. (B)(M7,S12)

3. How is lead extracted from its ore? (B)(J8)

4. How is fluorine isolated from their fluourides by Dennis method?

(B)(M6,S9,J11)

5. How does Fluorine differ from other halogens? (M8,9,13,S10)

6. Discuss about the properties of hydrogen halides.

7. Discuss the structure of intehalogen compounds of AX and AX5 type. (S7)




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8. Describe in detail how noble gases are isolated from air by Ramsay –

Rayleigh‟s method. (S6, M10)

9. Describe in detail how noble gases are isolated by Dewar‟s process

(J9,12,M11)CHAPTER 4. d- BLOCK ELEMENTS

1. How is zinc extracted from its ore? (B)(M6,11,J9,11,12,S10)

2. Explain the extraction of silver from its chief ore Argentite.

3. How is gold extracted from its ore? (B)(M8,J7,10,S6,9,12)

4. Explain the extraction of chromium by aluminothermic process. (M9,S8)

5. Explain how Potassium dichromate is extracted from chromine ore.

(B)(M7,10)

CHAPTER 5. f-BLOCK ELEMENTS

1. Discuss the position of Lanthanides in the periodic table. (M8)

2. What is Lanthanide contraction?Discuss its causes and two

consequences. (B)(S7)

3. Discuss the consequences of Lanthanide contraction. (B)(M7,9,13,J6,12)

4. Describe the extraction of lanthanides from Monazite sand.

(B)(M10,J7,11,S6,10)

5. Compare the points of similarities and differences between Lanthanides

and Actinides (any five point) (M6,11,J8,S12)

6. Mention the uses of Lanthanides and Actinides. (J9,S9)

CHAPTER 6. CO-ORDINATION COMPOUNDS

1. Explain the postulates of Werner‟s Theory.

(B)(M6,J6,7,8,10,11,S7,9,10,12)2. Explain coordination and ionisation isomerism with suitable examples.

(B)(M8,13,J7,9,12,S8,10)

3. Explain Hydrate isomerism and Linkage isomerism with examples.

(B)(M10)

4. For the complex K4 [Fe (CN)6], write the (B)(M7,S6)

(a) IUPAC name (b) Ligand (c) Central metal ion

(d) Co-ordination number (e) Geometry Complex ion




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5. What are the postulates of Valence bond theory? (M9)

6. Mention the type of hybridisation, magnetic property and geomery of the

following complexes using VB theory. (i) [Fe F6]4- (ii) [Fe(CN6]

4-

(B)(M6,11,J11,S8,12)7. Using VB theory explain why [Ni(CN)4)

2- is diamagnetic whereas

[Ni(NH3)4]2+ is paramagnetic. (M7,13,J6,8)

8. [Ni(CN)4]2- is diamagnetic whereas [NiCl4]

2+ is paramagnetic. Explain.

(J12)

9. How is chlorophyll important in environmental chemistry? Mention its

function. (B)(M8)

10. Mention the function of haemoglobin in natural process. (B)(M10)

CHAPTER 7.NUCLEAR CHEMISTRY

1. Give differences between nuclear reactions & chemical reactions.

(B)(M9,11, J12)

2. Explain nuclear fission reaction with an example. (B)(J8)

3. Explain the principle underlying the function of hydrogen bomb. (B)(M7)

4. Explain the nuclear reactions that take place in sun. (J7,S12)

5. Distinguish between nuclear fusion reactions and nuclear fission reactions.

(B)(S9)

6. Write a note on radio carbon dating. (B)(M8,10,J6,10,S6,7,10)

7. How are radioactive isotopes useful in medicine? (B)(M6,J9,11)

CHAPTER 8. SOLID STATE - II

1. Write the properties of ionic crystals. (B)(M11,J8)

2. Explain Bragg‟s spectrometer method. (B)(M8,10,J6,9,S6,7) 3. Explain Schottky and Frenkel defects. (B)(M6,7,J10,13,S8,10,12)

4. What are superconductors? Write their uses. (B)(J7,11,12)

5. Explain the nature of glass. (B)(M7)

CHAPTER 9. THERMODYNAMICS - II

1. Write the various statements of second law of thermodynamics.

(B)(M6,8,10,13,J6,10,11,S6,9,10)

2. What are the characteristics of entropy? (J8,S8,12,M9)




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3. Define Trouton‟s rule. What are the substances that deviate from this rule?

(J12)

4. Write the characteristics of free energy G. (M7,11,J7,9,S7)

CHAPTER 10.CHEMICAL EQUILIBRIUM - II 1. Derive a relation between Kc and Kp. (B)(M6,10,J7,S8,10)

2. Derive expression for Kc and Kp for the formation of HI. (S9)

3. Derive the expression for Kc and Kp for the decomposition of PCℓ5.

(B)(M7,11,13,J12)

4. Discuss the effect of temperature and pressure on the following

equilibrium: N2(g) + O 2(g) 2NO(g) H = +59.0KJ/mol (B)(J9,S12)

5. Apply Le Chatelier principle to Haber‟s process of manufacture of

ammonia. (M8,J6,10,11)

6. Apply Le Chatelier principle to Contact process of manufacture of SO3.

(M9,J8,S7)

CHAPTER 11. CHEMICAL KINETICS - II

1. State the characteristics of order of a reaction. (B)(M6,10,11,13,J10,S8)

2. Derive an equation for the rate of a first order reaction. (J9,11)3. Discuss the characteristics of a first order reaction. (S6)

4. Explain the experimental determination of rate. Constant for the

decomposition of hydrogen peroxide in aqueous solutions. (B)(J6,12,S7)

5. Explain the experimental determination of rate constant of acid hydrolysis

of methyl acetate. (B)(M7,S12)

6. State the differences between simple and complex reactions. (B)(J7,S10)

7. Explain various types of complex reactions. (B)(J7,S10) (Or) Write notes

on (i) consecutive reactions (ii) parallel (iii) opposing reactions. (B)(M8)

CHAPTER 12. SURFACE CHEMISTRY

1. Give any 5 main differences between physical adsorption and chemical

adsorption. (B)(J9)

2. Discuss the factors affecting adsorption. (S12)

3. Write briefly on intermediate compound formation theory of catalysis with

an example. (B)(J7,11,12,S8)




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4. Write briefly about the adsorption theory of catalysis. (B)(M6,9,13)

5. Write any 3 methods for the preparation of colloids by dispersion methods.

(B)(J6)

6. Explain the chemical methods of preparing colloids. (B)(M7,10,J10,S6,10)7. What is electro-osmosis? Explain. (B)(S7,J8)

8. How can colloidal solutions be purified by dialysis? (B)(M11)

CHAPTER 13. ELECTROCHEMISTRY- I

1. Differentiate between electronic conduction and electrolytic conduction.

(B)(J11)

2. Write the postulates of Arrhenius theory of electrolytic dissociation. (B)(J9)

3. Write the evidences in favour of Arrhenius theory of electrolytic

dissociation. (M10)

4. Explain Ostwald‟s dilution law. (B)(M6,M7,S8)

5. Explain buffer action of acidic buffer with example. (B)(S9,12)

6. Derive Henderson equation. (B)(M8,11,S6,J7)

7. Explain Oswald‟s theory of indicators. (B)(J6,12)

8. Explain Quinonoid theory of indicators. (B)(J6,M13)

CHAPTER 14. ELECTROCHEMISTRY - II

1. Describe Daniel cell. (J7,S9)

2. Write an account on cell terminology. (J9)

3. Write the IUPAC convention of representation of a cell. (M6,7,9,10,11,13)

4. How is a standard Hydrogen Electrode (SHE) constructed? Explain its

function?

5. How is e.m.f of a half cell determined? (B)(M8)6. Derive Nernst equation. (M9,J6,8,10,11,S6,8,10,12)

7. Calculate the emf of the cell having the cell reaction

2Ag++ Zn 2Ag + Zn2+, Ecell = 1.56 at 25C when concentration of Zn2+

= 0.1 M and Ag+ =10 M in the solution. (M6,10,11,J6,7,8,S8,10)

8. The emf of the half cell Cu2+(ag) / Cu(s) containing 0.01 M Cu2+ solution is

+0.301 V. Calculate the standard e.m.f of the cell. (M7,J10)




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9. Calculate the potential of a half-cell consisting of zinc electrode in 0.01M

ZnSO4 solution at 250C.E0 = 0.763V. (S12)

10. Establish a relation between free energy and emf. (J9,S6,S7)

CHAPTER 17.ETHERS (THROUGH THE CHAPTER)

1. Discuss the isomerism in ethers. (B)(J6,S7)

2. Give any 3 methods of preparing diethyl ether (or) ethers.

(B)(M8,10,13,J7)

3. How does diethyl ether react with the following reagents? (B)(M7,J11)

(a) O2/long contact (b) dil. H2SO4 (c) PCℓ5 (d) HI

4. Give any 3 methods of preparing anisole from phenol. (J12)

5. Give any two/three methods of preparation of anisole and explain the

reaction of HI with anisole. (M9,J8,12,S12)

6. Distinguish between anisole and diethyl ethers. (or) Distinguish Between

Aromatic ethers and Aliphatic ethers. (B)(M11,J9)(J10,S6,8,10)

CHAPTER 22. CHEMISTRY IN ACTION (THROUGH THE CHAPTER)

1. Explain briefly the characteristics of rocket propellants.

(B)(M6,9,11,J6,7,8,10,S7)

2. Write a note on anaesthetics? (S6,M10)

3. Explain the colour and structure of dyes. (S9,10,12,J12)

+2 BIOLOGY-PREVIOUS YEARS GOVERNMENT QUESTIONS-3 MARKS

BIOBOTANY

1. TAXONOMY OF ANGIOSPERMS (Q.15 & 16)

1. Write the objectives (aim) of classification of plants. (M7,J8,M11,0-11)(B)

2. What is „Binomial nomenclature‟? Give example. (S7,J10)(B)




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3. What is a type specimen? (M6)(B)

4. Explain author citation with example. (J9,M10,S10)(B)

5. Define Nomen ambiguous. (S8,J12,S12)(B)

6. Define tautonym. Give example. (J6,S6,M9,J11)(B)7. Write the three classes of seeded plants (or) phanerogamous. (J7,S9)(B)

8. Write the sub-classes of Dicotyledonae. (M13)

9. Write any three merits & demerits of Bentham and Hooker‟s classification.

(M9,J10)

10. Mention the systematic position of malvaceae. (J11)

11. Write any three points comparing the androecium of Malvaceae and

Solanaceae. (M10)

12. Name any three-fiber plants of Malvaceae. (S7,M11)(B)

13. Mention the binomial of any three medicinal plants of Malvaceae. (M13)(B)

14. Write the systematic position of potato family or Solanaceae. (M8,S13)(B)

15. Mention the binomials of three medicinal plants in Solanaceae and state

their useful parts. (J6,J8,S10,S11)(B)

16. What is atropine? (S08)

17. What are the alkaloids found in tobacco? (M12)(B)

18. What is cladode? Give an example. (M12, J13)(B)

19. What are the different types of inflorescences seen in Euphorbiaceace?

Give example for each. (M7,M8)(B)

20. Draw floral diagram for female flower of Ricinus communis. (M6)(B)

21. Write the binomial of a) Tapioca b) Castor. (S9)

22. Write the systematic position of musaceae (or) Musa paradisiaca. (J9,S12)(B)

23. What is monocarpic perennial? Give an example. (J12)(B)

24. Explain the structure of androecium of Musa paradisiaca. (J7)

25. Draw the floral diagram of Musa paradisiaca. (S6)(B)

26. Write short notes on bicarpellate. (J13)

27. Write any three binomials of food plants of malvaceae. (S13)

2. PLANT ANATOMY (Q.17 & 18)




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1. Bring out any three characteristics of meristematic cell. (J8)

2. What are lateral meristerms? (S11)

3. Draw the structure of parenchyma and label the parts. (S7,J11)

4. Describe any two types of collenchyma. (M11)5. Draw diagram for Lacunate collenchyma and label its parts. (S6)

6. Draw diagram for angular collenchyma and label its parts. (M7)

7. Differentiate Sclereids from Fibres. (M7,S10)(B)

8. What are brachy sclereids? Give example. (J6)(B)

9. Draw diagram,for Brachysclereids and label the parts.(M6,J9,S9,J10,M12)

10. Draw the angular collenchyma and label the parts. (J12,J13)

11. Draw any three types of secondary wall thickenings in tracheids.(or) Draw

and label the structure of xylem vessel. (S7,J7,M13)

12. Write any three functions of epidermal tissue system. (M13)

13. Draw the diagram of bicollateral vascular bundle. (J6,M9,S8)

14. Draw and label the parts of open vascular bundle. (M10)

15. Explain bicollateral vascular bundle with example. (S6,S08)

16. Explain endarch and exarch xylem with examples (M9)

17. Draw and label the amphicribral vascular bundle. (S12)

18. What are passage cells? (M6,J9,M10,S12)(B)

19. Draw the ground plan for T.S. dicot root & label its parts. (J8,S10)

20. Write any three anatomical differences between monocot root and dicot

root. (S7)

21. What is Protoxylem lacuna? Give an example. (J10,S13)(B)

22. Define eustele. (S9,J12)(B)23. Draw the ground plan for T.S. of sunflower stem and label the parts. (M8)

24. Write any three differences between the vascular bundles of dicot stem

and monocot stem. (M11)

25. Explain dorsiventral leaves with example. (S7,J7)(B)

26. Write in three sentences about the mesophyll of dicot leaf. (or) Define

mesophyll. (M8,J11,M12)(B)

27. Write 3 differences between the palisade and sponge parenchyma. (S11)




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28. Define bundle sheath. (S08,J13)(B)

29. Draw and label the structure of phloem fibre. (S13)

3. CELL BIOLOGY AND GENETICS (Q.19)

1. Draw the structure of chromosome and lable its parts. (J6,S6,M7,S9,S10)2. Draw different types of chromosomes based on shape and position of

centromere. (M6,J10,S12)

3. Draw and lable the parts of acrocentric chromosome. (M10)

4. Draw the polytene chromosome & lable the parts. (J8,J9,M11,J12,S13)

5. Draw and label the structure of Lamp brush chromosome. (S08,J11,M13)

6. Draw t -RNA and lable its parts. (J7,S7,M8,M9,S11,M12,J13)

4. BIOTECHNOLOGY (Q.20)

1. What is the importance of Escherichia coli in biotechnology? (M7,S11)

2. Name the enzymes involved in the making of a DNA hybrid. (J6,J13)(B)

3. What is restriction endonuclease? (M8,S08,J11)(B)

4. What is splicing? (M10,S12)(B)

5. How do bacteria protect themselves from the attack of viruses? (or) What

is role of restriction enzyme in bacteria? (M6)(B)

6. List down genetically engineered products and their functions. (J7)

7. What are transgenic plants? Give any two examples. (J10)(B)

8. Write any three transgenic dicotyledonous plants. (S7,M13)(B)

9. Write any three monocot transgenic plants. (M9)

10. What is meant by bioremediation? (M12)

11. Write any three benefits obtained by the release of genetically modified

organisms into the environment. (J8)12. Define totipotency. (J12)(B)

13. What is inoculation? (S9)(B)

14. What is morphogenesis? Describe the types. (S11)

15. List the important tissue culture centers (or) biotechnology centers in India.

(S6,J9)

16. What is PEG? Write its role. (M11)

17. Define SCP. Give an example. (M10,S13)(B)




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18. Mention the names of any three algae used for SCP production. (M7)

5. PLANT PHYSIOLOGY (Q.21, 22 & 23)

1. List the photosynthetic pigments. (M9)

2. What is photolysis of water? (M6,J6,S6,S9,M11,J12)(B)3. What is photophosphorylation? (M8)

4. Write the chain of electron carriers in electron transport system. (M9)

5. Write the overall reaction of photosynthesis. (J10,S10)(B)

6. State the conditions under which cyclic photophosphorylation occur.

(J7,J8,J9,M10)(B)

7. What are dimorphic chloroplasts? (J8)(B)

8. Write three differences between C3 and C4 pathway. (S11)

9. Define C2 cycle. (S9)(B)

10. Write any three differences between photorespiration and dark respiration.

(M6,M7,S7,S8,J10,S10,M12,S12,M13,S13)(B)

11. What is energy currency of a cell? Why is it called so? (S11)

12. What are insectivorous plants? Give an example. (M8)

13. Explain total parasite with an example. (J9)(B)

14. Write about the structure of ATP. (J8)

15. Explain the role of aconitase in Kreb‟s cycle. (J9)(B)

16. Write the role of following enzymes in respiration a) aldolase b) succinyl

CoA synthetase. (M11)

17. Define Chemosynthesis. (J11,S13)

18. Write any 3 significance of pentose phosphate pathway. (M12)

19. Define respiratory quotient. (J6,S6,J12,M13)(B)20. The respiratory quotient of a carbohydrate molecule is one. How? (M7)

21. Respiratory quotient of glucose in anaerobic respiration is infinity. Give

reasons. (M8)(B)

22. Define fermentation. (M9,S12)

23. What are the three phases of sigmoid cruve? (S9)

24. Write any three physiological effects of Absicic acid. (J11)

25. What is apical dominance? (S11)(B)




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26. Mention any three physiological effects of cytokinin. (J7,S12)

27. Write any three physiological effects of Gibberellin. (M7)

28. What is Richmond-Long effect? (M6,S7,M10,J11,M13)(B)

29. Define „bolting‟. (J6,S08,M11,M12,S13)(B) 30. Define growth inhibitors. Give an example. (J10,S10)

31. Explain long day plants and short day plants with examples.

(S6,J12,J13)(B)

32. What is vernalization? (S08)(B)

33. Write down the advantages of vernalization. (J7)(B)

34. Is‟t possible to shorten the time of crop maturity?Support your answer.(S7)

35. Define active centre. (J13)

36. What is Kreb‟s cycle? (J13)

6. BIOLOGY IN HUMAN WELFARE (Q.24)

1. Write about pureline selection. (J7)

2. Define clonal selection. (S08)

3. What is heterosis? (M6,J10,S11,J12)

4. What are Biofertilizers? Give an example. (M13)

5. What is soil reclamation? (M8,S13)

6. What are biopesticides? (J11)

7. What are edible interferons? (M7)

8. What is biopiracy? (J8,M11,M12)

9. Mention any two unique facets of Biopatency. (J6)

10. What are biomedicines? Give an example. (S6,S9,J9,S12)(B)

11. What is humulin? (S7,M9,S10)(B)12. What is rice bran oil? Write any two uses of it. (M10)

13. Write any three economic importance of cotton. (J13)

+2BIOLOGY

PREVIOUS YEARS

GOVERNMENT QUESTIONS




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BIOBOTANY (5 MARKS)

1. TAXONOMY OF ANGIOSPERMS (Q.25)

1. Give an account of phylogenetic system of classification. (S6)2. Write any five salient features of ICBN. (M9,M11,M13)(B)

3. Write the importance of herbarium. (M6,J6,M7,J8,S9,M10,S10,M12)(B)

4. Discuss the outline of Bentham and Hooker‟s classification of plants.

(S7,S08)(B)

5. Bring out merits of Bentham and Hooker‟s classification. (J7,J12)(B)

6. Write the economic importance of Malvaceae. (M8, J9)(B)

7. Give an account of the economic importance Solanaceae. (S12)(B)

8. Write the economic importance of Euphorbiaceae. (J10,S11)(B)

9. Write the economic importance of Musaceae. (J11)

10. Define Biosystematics. Briefly write a note on it. (J13)

11. Write the differences between Musa and Ravenala. (S13)

2. PLANT ANATOMY (Q.26)

1. Explain the types of meristems based on their positions with diagram.

(J7,M9,S9)(B)

2. With examples, explain any 2 types of collenchyma with diagram. (J8)

3. Write short notes on tracheids. (M12)(B)

4. Write short notes on vessels. (M10)(B)

5. Explain the structure of sieve elements. (S6,M7,M11,J13)

6. Describe the four types of cells in phloem tissues (M9)

7. Describe the vascular tissue system with diagram. (S9)8. With examples, explain structure of concentric vascular bundles. (M8)

9. Draw and label the parts of T.S of monocot root. (J11)

10. Differentiate between monocot & dicot root anatomically giving 5 points.

(S8,J9,J10,S12)(B)

11. Describe the structure of vascular bundle in monocot stem. (S10)

12. Write short notes on vascular bundles of the dicot stem. (S11)




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13. Write any three differences between the vascular bundles of dicot stem

and monocot stem. (M13)

14. Draw a neat sketch of anatomy of sunflower leaf (T.S. of dicot leaf) and

label the parts. (M6,J6,S7,J12,S13)(B)3. CELL BIOLOGY AND GENETICS (Q.27)

1. Write short notes on structure of chromosome. (M10)(B)

2. Explain the types of chromosomes on the basis of shape and position of

centromere with diagram. (J7)(B)

3. Describe the special type of chromosomes. (M8,M9,S10)(B)

4. Write a short note on gene mutation. (J6,M7,M12)(B)

5. Write about the significance of mutation. (S6,J9)(B)

6. Give an account of mutagenic agents. (S7,M13)(B)

7. Explain translocation chromosomal aberration with diagram. (S11)

8. Explain allopolyploidy with an example. (J8)(B)

9. Write any five significances of ploidy. (M6,J12,J13)(B)

10. Explain the experiment conducted by fredrick Griffith In Diplococcus

pneumoniae. (S9)(B)

11. Write a note on t -RNA with diagram. (S08,J10,M11,S12,S13)(B)

12. Write the difference between DNA and RNA. (J11)


1. Write the basic technique involved in genetic engineering. (J10) Explain

the steps involved in the production of human insulin by a bacterial cell

with diagram. (J8)

2. How is DNA cut? (S7,M9,S10)(B)3. Describe with diagram the action of restriction endonuclease enzyme.

(M6)

4. How are foreign genes introduced into plants? (M7)(B)

5. Write about the electroporation and gene gun methods of introducing

foreign gene into plants. (J9)

6. Write the practical applications of genetic transformation. (S12,J13)




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7. Write the benefits from the release of genetically modified microorganisms

into the Environment. (M13)

8. Briefly mention basic concepts involved in plant tissue culture. (M10,S13)

9. Give an account of origin of tissue culture. (J7)(B)10. Write any five outcomes of application of plant tissue culture. (J6,S11,J12)

11. Explain the enzymatic method of isolation of protoplasts. (S6,S08,J11)(B)

12. Give an account of SCP. (or) What is single cell protein? State uses of

single cell protein. (M8,S9,M11,M12)(B)

5. PLANT PHYSIOLOGY (Q.29 & 30)

1. Describe the structure of chloroplast. (S7,J9)(B)

2. Explain cyclic photophosphorylation. (M6,S11)

3. Write the differences between cyclic photophosphorylation and non-cyclic

photophosphorylation. (M7,J7,S9,S10,S12,J13)

4. Bring out any five significances of photosynthesis. (J8,M12)(B)

5. Draw C4 cycle without explanation. (S7)

6. Write short note on Ganong‟s light screen experiment. (S08,J10)(B)

7. What are the five differences between C3 and C4 pathways?(S6,J11,J12)(B)

8. Explain the test tube and funnel experiment to demonstrate that oxygen is

evolved during photosynthesis.(J9,J12)(B)

9. Explain Ganong‟s respiroscope experiment.

(J6,J7,M9,M12,M13J,13,S13)(B)

10. Write the significance of pentose phosphate pathway. (M11,S12)

11. Explain respiratory quotient. (M6)(B)

12. Explain Kuhne‟s fermentation experiment with diagram. (J8,S9)

13. Explain the experiment to measure the actual longitudinal growth of plant

by lever auxanometer. (or) Explain the experiment to measure growth in

length of a plant. (M7)(M8)(B)

14. Explain the different phases of growth with sigmoid curve. (M10)(B)

15. State or Bring out the physiological effects of Auxin. (J8,S08,M10,M13)(B)

16. Write any five physiological effects of gibberellins. (S10,S11)




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17. Bring out the physiological effects of cytokinin. (M9)(B)

18. List the physiological effects of ethylene. (S6,M11)(B)

19. Write a short note on vernalization. (J6,J11,S13)(B)

6. BIOLOGY IN HUMAN WELFARE (Q.31)

1. Write any five aims of plant breeding. (J6,S6,S7,S9,J11,J13)(B)

2. Write a note on plant introduction. (M7)(B)

3. Write any five benefits of biofertilizers. (J9,J10,S11)

4. Give an account of Tikka disease of groundnut. (J7,M8)

5. Write a short note on Biopatent. (J8)

6. Write about microbes in medicine. (S8,M12)(B)

7. What is antibiotic? Write any 2 names of antibiotics. State their uses. (M6)

8. Write any five economic importance of rice. (S10,M13)

9. Bring out the economic importance of groundnut. (M10)

10. Write any five economic importance of cotton. (M9,S12)

11. Bring out the economic importance of teak. (M11,S13)

12. Write a short note on citrus canker. (J12)

BIO – BOTANY (10 MARKS)

1. TAXONOMY OF ANGIOSPERMS (Q.32)

1. With the help of flowchart, discuss Bentham & Hooker‟s classification of

plants. (M8)(B)

2. a) Bring out the merits of Bentham and Hooker‟s classification of plants.

b) Bring out the significance of herbarium. (J11)

3. Describe Hibiscus rosasinensis in technical terms. Draw floral diagram and

write floral formula. (M6,S11,J12,S12,J13)(B)4. Describe Datura metal in technical terms. (J6,S6,S8,J9,S9,M10,J10)(B)

5. Describe Ricinus communis in botanical terms. (S7,M11,S13)(B)

6. Describe Musa paradisiaca in technical terms. Draw its floral diagram and

write the floral formula. (J6,M7,J7,M9,S10,S11,M12,M13)(B)

2. PLANT ANATOMY (Q.33)

1. a) Bring out the characters of meristematic cells. (J11)




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b) Write the function of epidermal tissue system. (J11)

2. Write an account of Sclerenchyma with diagram. (S8)(B)

3. Write an essay on Xylem tissues (S7,J12,S12)(B)

4. Describe the four types of cells in phloem tissues. (M9)(B)5. Describe the vascular tissue system with diagrams. (S9,M12,S13)(B)

6. Discuss the anatomy of monocot root with diagram. (J8)(B)

7. Describe the primary structure of a dicot root. (S11,M13)

8. Describe the primary structure of a monocot stem. (J6,J9,J13)(B)

9. With help of diagram, describe the anatomy of dicot stem. (M8,J7,J10)(B)

10. Write the anatomical differences between the dicotyledonous stem and

monocotyledonous stem. (M6,M7,M10)(B)

11. Explain the anatomy of Dicot leaf. (S6,S10,M11)(B)


1. Write an essay on DNA recombinant technology. (S8,M10,M12,M13)(B)

2. Write an essay on transgenic plants. (S6)

3. a)What is role of Bt toxin in crop protection against pest? (S9)(B)

b) Write any five uses of plant tissue culture. (S9)(B)

4. Explain the basic techniques of plant tissue culture.

(M6,M7,S7,M8,M9,M10,S10,M11,S12,J13)(B)

5. What are the outcomes of application of plant tissue culture? (J11)

6. With the help of diagram, describe the process of protoplasmic fusion. (or)

Explain as to how protoplasmic fusion can bring about somatic

hybridization in plants. (J8,S11,J12,S13)(B)

7. Give an account of single cell protein. (J6)(B)8. a) Write about the use of genetically engineered bacterial strain by Ananda

Mohan Chakraborthy.

b) Write the benefits from release of genetically modified microorganism

into the environment. (J7)

5. PLANT PHYSIOLOGY (Q.35)

1. Describe the light reaction of photosynthesis. (or) Explain cyclic and

noncyclic photophosphorylation. (J6)(B)




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2. Draw (or) Explain Calvin cycle (or) Write an account on dark reaction of

photosynthesis. (Explanation or Flow chart) (M11,S9,S12,S13)(B)

3. Describe Hatch and slack pathway of carbon dioxide fixation in plants with

flowchart. (or) Write an essay on C4 pathway. (J8)(B)4. Draw C4 Cycle without explanation. (M9)(B)

5. Write an essay on photorespiration (or) C2 cycle (Explanation or Flow

chart) (M7,J12)(B)

6. a) Write the significance of pentose phosphate pathway. (J9)

b) Write short notes on Insectivorous plants. (J9)

7. What is glycolysis? Explain the steps involved in it. (or) Explain the

reaction involved in glycolysis (Flow chart or Explanation)

(S7,J9,M10,J11,M12,M13)(B)

8. Draw Kreb‟s cycle without explanation. (or) Explain Kreb‟s

cycle.(Explanation or Flowchart) (S6,J7,M8,J10,M10,S10,S11)(B)

9. Explain pentose phosphate pathway. (S8)(B)

10. a) Write any five physiological effects of Auxin. (M6)(B)

b) Describe with examples any two types of heterotrophic nutrition inangiosperms. (M6)(BB)

11. Write the physiological effects of auxins and gibberellins. (J13)

BIO – ZOOLOGY (3 MARKS)

1. HUMAN PHYSIOLOGY (Q.17 & 18)

1. Classify monosaccharides. (M10)

2. List out the essential amino acids. (M7,M11)(B)

3. Why essential amino acids are called so? (M13)

4. What is kwashiorkor? Mention its symptoms. (J6,S8)(B)

5. What is PUFA? Give an example. (S7)(B)

6. Mention the symptoms of “Marasmus” (M9,J11)

7. Mention the symptoms of pellagra. (M6)

8. What is obesity? (M8)(B)

9. Define Basal Metabolic Rate (BMR). (M11)

10. What are the enzymes present in the pancreatic juice? (J10)




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11. What is called as peritonitis? (J12)

12. Mentions the different types of Hernia. (J9)

13. What is Rheumatic arthiritis? (S9)

14. Write the characteristics of Osteomalacia. (S6)15. What is meant by Rigor mortis? (S12,J13)

16. Name the muscles involved in respiration. (J11)

17. What is Herring-Breuer Reflex? (S6,M9)(B)

18. What is called Bronchitis? Mention its types. (J7)

19. What are the symptoms and signs of pneumonia? (S11)

20. What is silent infraction? (J10)

21. What is Angiogram? (J8)

22. What is called coronary angioplasty? (J7)(B)

23. What is Rheumatic heart disease? Write its symptoms. (S12)

24. What is called cardiopulmonary resuscitation? (S10,M12)

25. Write any three functions of cerebrospinal fluid. (S9)

26. Enumerate the character of myoxedema. (S10)

27. What is optometry? (M6)

28. What is Cataract? Mention its types. (J6,M7)

29. Identify two reasons for cataract. (S7)(B)

30. Suggest any three methods for eye care. (S11)

31. Draw the diagram of Urea Biosynithesis (Ornithine cycle). (S8)

32. What is corpus luteum? (M8)

33. Write three phases of menstrual cycle. (J9)

34. Mention the function of corpus luteum. (M10)35. What are the phases and days of menstrual cycle? (J12)

36. What is vasectomy? (J8)

37. What is tubectomy? (M12,M13)

38. What is meant by REM sleep? (J13)

39. What is chronic obstructive lung disease? (S13)

40. Give three reasons for the loss of hearing? (S13)

2. MICROBIOLOGY (Q.19)




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1. Write the crowning achievements of Louis Pasteur. (M11)

2. What are viruses? Why are they referred to as obligate- intracellular

parasites? (J7)

3. What is meant by Diploid cell strain? (M6,S11)(B)4. Comment on continuous cell line culture of virus. (S9,S10)

4. What is meant by chicken embryo technique? (M8,S12)

5. List out the names of any three oncogenic viruses. (M9)

6. Write the characteristics features of poxviruses. (M13)

7. Mention the various Morphological features of bacteria. (J8)

8. What is transduction? What are its types? (M12,J12)

9. Write the symptoms of cholera. (M8)

8. Write notes on Gastroenteritis. (J9)

9. What is amoebiasis? (S6)(B)

10. Write the names of any three protozoan parasites and their disease. (or)

Mention any three pathogenic protozoans. (J6,J10)

11. Define Zoonoses. (S7)(B)

12. Write any three characteristics of a good chemotherapeutic agent. (S8)

13. Enumerate the methods of diagnosis of AIDS. (M7,J11,S13)(B)

14. What is meant by Zooanthroponoses? Give an example. (J13)

3. IMMUNOLOGY (Q.20 & 21)

1. How do interferon acts as physiological barriers in our body? (M11)

2. What is phagocytosis? Mention the important phagocytes. (S8,S9,S13)(B)

3. How are macrophages acts as phagocytic barriers? (M10)

4. Define Cell Mediated Immunity (CMI). (J6)(B)5. Mention role of cytotoxic T-lymphocytes in cell mediated immunity.(S12)

6. Write any three unique features of specific immunity. (J9)

7. What are the main functions of free antibodies?

(S6,J9,S10,M11,M12,M13,B)

8. Define opsonisation. (S11)

9. Differentiate active adaptive immunity from passive adaptive immunity.

(M6)(B)




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10. What is the primary function of the “Thymus”? (M9)

11. What is the hormone like factors produced by the thymus? (J12)

12. Name the secondary lymphoid organs. (M7)

13. What are the functions of spleen? (J12)(B)14. Distinguish between paratope and epitope. (M7)(B)

15. State the functions of spleen. (J10,J11,S11,J13)(B)

16. Define the term „antigen‟. (S6,J11)(B)

17. What are haptens? (S7,J8,S10,M13,J13)(B)

18. Name the five classes of immunoglobulins. (M8)(B)

19. Comment on „L‟ chain of immunoglobulin. (M6)

20. Draw the diagram of immunoglobulin and mark the parts. (J7)(B)

21. Write any three effects of graft rejection in a host. (S8)

22. Define Xenograft. (S7)(B)

23. Write any three preventive measures for graft rejection. (M10)

24. Write down the solutions to the problem of graft rejection in recent years.

(S12)

25. What are immunosuppressant drugs? (J7)(B)

26. What is anaphylaxis? (S9,M12)

27. When do autoimmune diseases occur? Give an example. (J8)

28. How is the multiple sclerosis formed? (M9)

29. Distinguish allograft from autograft. (S13)

4. MODERN GENETICS (Q.22, 23 & 24)

1. What is Karyogram? (S7)

2. What are the uses of Karyotyping of Human Chromosomes?(J6,M7,M8,S11,J12,M13,J13)(B)

3. Define recombinant DNA. (M9)

4. Write any three uses of recombinant DNA technology. (S9)

5. What is called pedigree analysis? (S6,M10,S10)

6. What is meant by pedigree chart? (M11)

7. Mention the names of genetic diseases. (M7)

8. What are the symptoms of sickle cell anaemia? (S9)




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9. What are the clinical manifestations of Thalassemia?

(J7,J8,S8,J10,11,M11,J13,S13)(B)

10. Write note on Bubble Boy Syndrome. (J12,S13)

11. What is human genome project? (M12)12. What is proteomics? (S7,S9,J10)

13. Define cloning. (M8)

14. What is differentiation? (M10,M12,S12)(B)

15. What are superbugs? Mention any one use of them. (M6,J11)

16. Write the significance of superbugs. (M9)(B)

17. What are the merits of Cloning? (J9)

18. Mention any two demerits of cloning. (J8)

19. What are the uses of transfected cell? (M6,J9)

20. What is gene therapy? Mention its types. (J7,S7,J8,S8,S10,J11,J12,B)

21. Differentiate somatic cell gene therapy from germ line gene therapy.

(J9,S12)

22. How to produce viruses as effective vectors? (M13)

23. Define bioinformatics. (M9)

24. Write any three scopes of genetic engineering. (S11)

25. What are the scientific inventions that helped in paving way for origin of

bioinformatics? (M12)

26. Mention any three scopes of „Bioinformatics‟. (J7)

27. What is a database in bioinformatics? (M8,S10,S13)(B)

28. What are the premier institutes considered as the authorities in the

nucleotide sequence database? (S11)29. What is DNA library? (S6,M7,M11,M13)(B)

30. What is cDNA? (M10)

31. Mention the language that helps in bioinformatics. (J10)

32. Write any three uses of bioinformatics. (S8)

33. What is Protein Data Bank? (J6)

34. What is known as glowing coal model? (S12)

35. Write about the structure of haemoglobin molecule. (J13)




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5. ENVIRONMENTAL SCIENCE (Q.25)

1. What is known as global warming? (S7)(B)

2. Mention any three causes of factors of global warming. (J8,S8)

3. What are ozone-depleting substances? (S9)4. What is greenhouse effect? (S6)

5. What are the effects of ozone depletion? (J9,J11,S11)

6. What is meant by ozone hole? (J10)

7. Name the ozone depleting substances. (J12)

8. What is non-biodegradable waste? Give an example. (J6)

9. What are biomedical wastes? How are they disposed of? (M6,J7)

10. Define Biodiversity. (J6,J13)(B)

11. Mention the reasons for decline of biodiversity. (S12)

12. Define „Biosphere reserve‟. (S10)

13. Write any two characteristics of a bioreserve. (M12)(B)

14. Mention two Biosphere reserves in Tamil Nadu. (M6,M8)(B)

15. List out the names of any three bioreserves in India. (M9)(B)

16. What are the advantages of solar energy? (M7,S13)(B)

17. The future source of power is hydrogen. Why? (M10)

18. What is meant by seeding of clouds? (S6,M13)(B)

19. What is meant by bioremediation? (M11)

6. APPLIED BIOLOGY (Q.26 & 27)

1. Write any three characteristics of jersey breed. (or) Write short notes on

Jersey diary breed. (M11,S12)

2. How will you identify healthy cattle? (or) How will you identify the diseasesfree healthy cattle? (M8,J13)(B)

3. List out the different types of diseases of cattle. (S7)(B)

4. Write any three exotic breeds of cattle. (M12)

5. What are the control and preventive measures of cow-pox diseases?

(M6,S6)(B)

6. Mention any two symptoms of Milk fever. (J6,J10)

7. What is milk fever? Mention its symptoms. (S9)




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8. What are the precautions and first aid for milk fever? (M7)

9. What is meant by outbreeding? (S11)

10. What is artificial insemination? (J8)(B)

11. What are the advantages of artificial insemination?(S6,J7,J9,M8,S8,J11,J13,S13)(B)

12. Mention any three breeds of indigenous fowls in India. (J7)

13. What are the characteristic features of Aseel breed of fowl? (M10)

14. Mention the important points to be considered during selection of eggs.

(S7,M9)

15. Differentiate artificial incubation and natural incubation. (J12)

16. How are the fish ponds categorized? (S10)

17. What are the characteristic features of Tilapia? (J11)

18. Where do the brackish water fishes spend most of their life? Give an

example. (M13)

19. Mention the uses of stethoscope. (J8)

20. Mention the uses of sphygmomanometer. (M9)

21. What is Haemocytometer? (J10)

22. What is haemocytometry? What are its uses? (J12)

23. State the clinical significance of Haemocytometer. (S10)

24. What is known as Glycosuria? (S8)

25. What is electrocardiogram? (S12)

26. What is Computed Tomography Scan? (J6)

27. Mention any three uses of C.T. (M6,S11)

28. What is artificial pace maker? (S9,M10)29. Mention the advantages of autoanalyser. (M7,M11,M13)

30. Write the disadvantages of an autoanalyser. (J9)

31. What is endoscopy? (S13)

7. THEORIES OF EVOLUTION (Q.28)

1. State the theory of inheritance of acquired characters. (J7)(B)

2. Define first law of Lamarck. Write one example. (J9)

3. State Germplasm theory. (J6,S6,S7,J12,M13)(B)




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4. What is meant by survival of the fittest? (M7,S11)(B)

5. Define Pangenesis theory. (M9,M11)

6. Write the reasons for the formation of polysomics. (M12)

7. Define “Gene pool”. (M8,S10,S12)(B) 8. State (or) Define Hardy-Weinberg Law. (M6,S8,M10,J13)

9. Define bottleneck effect. (J8,S13)

10. Define Polymorphism. (J10)

11. What is species? Mention its types. (J11)

12. Differentiate allopatric species from sympatric species. (S9)

BIO – ZOOLOGY (5 MARKS)

1. HUMAN PHYSIOLOGY (Q.29)

1. Describe the process of absorption and assimilation of digested food.

(M10)

2. Give an account of root-canal treatment. (M7,S08,M11)(B)

3. Explain the different types of bone fracture. (S7,J8,M13)(B)

4. Explain the mechanism of healing of fractured bone. (S10)

5. Give an account of origin and conduction of heartbeat. (J6,J7,S11)

6. Describe the mechanism of blood clotting. (J9)

7. “Sleep is a state of unconsciousness” – Substantiate your statement.

(M12)(B)

8. Write down the various types of memory. (M6,J11)(B)

9. Explain briefly right and left-brain concept. (S6)(B)

10. Write brief account of cerebrospinal fluid and its function. (J10)(B)

11. Enumerate neurohypophysial hormones. (J12)12. What are the functions of thyroxine? (S12)

13. Draw the V.S.of human eye and lable the parts. (M8)

14. Write notes on human eye defects like myopia and hypermetropia. (S9)

15. Enumerate the functions of skin. (M9)

16. Enumerate the risk factors of Myocardial infarctions. (J13)

17. Briefly explain the importance of minerals. (S13)

2. MICROBIOLOGY (Q.30)




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1. Write the pathogen, symptoms and mode of transmission of Rabies and

Cholera. (M10)

2. Write short notes on any two viral diseases in man. (J9)(B)

3. Write short notes on viral diseases in man. (M7)(B)4. Mention the steps involved in the preparation of bacteriological media.

(S9,J10,S13)

5. Write notes on „Bacterial Genetics‟. (S10)

6. Describe any two bacterial sexually transmitted diseases in man.(J7,M11)

7. Write notes on two bacterial diseases in man. (J8)

8. Enumerate the adaptations of pathogenic microbes. (M6,S7,J11,S11,B)

9. Describe the structure of HIV virus. (M9)

10. Explain the control & management of AIDS. (J6,S08,M12,S12)(B)

11. Write the various symptoms of AIDS, defined by WHO.(S6,M8,J12,M13,B)

12. What is called chemotherapy? What are the good characteristics of

chemotherapeutic agent? (J13)

3. IMMUNOLOGY (Q.31)

1. What are the anatomical & inflammatory barriers in first line defense? (J7)

2. Explain the unique features of the adaptive immunity. (S8,S13)(B)

3. Write a short note on antibody mediated immunity. (M6)

4. Write short notes on activation of adaptive immunity. (M10)

5. Describe the structure of lymph node with the help of diagram. (S10)

6. Describe the structure of immunoglobulin with a diagram. (J9,J10,S12)

7. Draw a labeled diagram of Immunoglobulin (IgG) (J6,J10)(B)

8. What is organ transplantation? Classify the types of graft. (J8)9. Describe the types of grafts. (M9)

10. Write short notes on genetic basis of organ transplants. (M11)

11. What are the symptoms of graft rejection? (or) What are the symptoms of

allograft rejection? How it is prevented in clinical field?

(S6,M7,S7,S9,J11,S11,M12,)(B)

12. Explain the primary set, secondary set and final lysis of graft rejection.

How clinically graft rejection is prevented? (M13)




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13. Describe various preventive steps in graft rejection. (J12)

14. Give an account of immunodeficiency diseases. (M8)(B)

15. Describe the anatomical and physiological barriers in the first line of

defense against diseases. (J13)4. MODERN GENETICS (Q.32)

1. Describe the karyotyping of human chromosomes. (M10)

2. Mention the uses of recombinant DNA technology. (M7,M8)(B)

3. Give the symbolic representation of pedigree chart. (S7)

4. Write a short note on Huntington‟s Chorea. (M6,S12)

5. What are the significance and benefits of Human Genome Project?

(J7,J8,S8,J10,J11)

6. Explain Dr. Ian Wilmut‟s cloning mechanism. (S10)

7. What are the uses of transgenic animals? (M12,M13)

8. Write a note on scope of Bioinformatics. (J6,J7,J8,M9,S13)

9. What is database? Briefly explain its types. (S9)

10. What are the ethical issues, merits and demerits of cloning?

(S6,M11,S11,J12)(B)

11. What is a „Glowing coal‟? What are the uses of it? (J9)

12. Explain the protein model and its uses. (S13)

7. THEORIES OF EVOLUTION (Q.33)

1. Write a short note on NeoLamarckism. (S6)(B)

2. What are the objections to Darwinism? (S7)(B)

3. Describe the modern concept of natural selection. (J9)(B)

4. Explain chromosomal aberration (S11)5. Write detailed account on population genetics? (or) What are the

conditions under which Hardy-Weinberg law operates? (M8,M11)(B)

6. Describe the „genetic drift‟ concept. ? (or) Describe Sewall-wright

effect.(S8,S9,M10,M12,S12)

7. What are the three processes in natural selection? Explain. (J6)

8. Write down the mechanism that prevents inter-specific crosses? (or)

Explain pre-mating isolation. (J8,J7,J10,J11,J12,S13)




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9. Give an account of different types of species. (or) Write short notes on

speciation. (M6,M7,S10,M13)

10. Describe the polymorphism with an example. (or) Write short notes on

polymorphism. (M9,J10,J13)BIOZOOLOGY (10 MARKS)

1. HUMAN PHYSIOLOGY (Q.34 & 35)

1. Write an essay on Vitamins. (S9)

2. Write an essay on vitamin deficiency ailments. (S12)

3. Explain the digestive process taking place in small intestine.

(J7,J8,J10,J11,S11,M12)(B)

4. What is meant by dental carries? Write its cause, symptoms and root

canal treatment. (S10)(B)

5. Define bone fracture and explain different types of bone fracture. (M8)

6. Describe the structure of skeletal muscle with diagram. (M9, M11)

7. Explain the process of pulmonary respiration with help of diagram. (or) List

out the several processes of respiration. Explain them with suitable

diagram. (J9,J13)

8. Explain the process of inspiration and expiration. (or) Describe the

mechanism of breathing with proper illustration. (S6,M7,S7,S8)(B)

9. Describe the origin and conduction of heart beat & cardiac cycle. (M10)

10. Write an essay on myocardial infarction. (M6,M13)

11. Enumerate the events involved in the function of the human heart. (M8)(B)

12. Write an essay on composition of blood. (J12,S13)(B)

13. Explain the structure & functions of thyroid gland with diagram. (J9)14. Give an account of parathyroid gland. (J10,J11)

15. Explain the importance of Pancreas as an endocrine gland. (J8)

16. Explain the physiological effects of insulin and glucagons. (S7)

17. Explain how adrenal medulla functions as an endocrine gland. (M9,S13)

18. Write an essay on the functions of adrenal secretions. (J7)

19. Describe the role of rods and cones in visual perception. (M13)




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20. Enumerate the various eye defects. Comment on corrective measures.

(J6,M11)(B)

21. Explain the type of hearing loss and the correcting measures adopted.

(M10)22. Explain the mechanism of urine formation. (M6,M7,S12)

23. What is Diabetes mellitus? Explain its symptoms, types and causes. (S9)

24. Write an essay about symptoms,types & causes for diabetes. (J12)

25. Write an essay on menstrual cycle. (S6,S8,S10,S11,M12)(B)

26. Comment on various schemes suggested by the National Family Welfare

Programmes & their importance. (J6)(B)

27. Describe the hormones and its function of anterior pituitary gland. (J13)

5. ENVIRONMENTAL SCIENCE (Q.36)

1. Give an account of greenhouse gases and their impacts on the

environment. (S8)(B)

2. „Global warming is the direct result of Greenhouse effect‟. Discuss the

statement. What related problems do we foresee? (J9)

3. “Ozone as a natural sun block” – Discuss and also list out the ways of

preventing ozone depletion. (M6,M7,J13)(B)

4. Write essay on non-hazardous solid waste management. (M10)

5. Write an essay on importance of bio diversity, consequences of losing Bio-

diversity and various strategies adopted to conserve biodiversity.(S9)

6. List out the effects of global warming and efforts to control global warming.

(M12)

7. How will you manage hazardous wastes? Discuss it with currentknowledge. (J7,M8,J11,S11)(B)

8. What is known as energy crisis? What are the steps taken to solve energy

crisis? (S6,J8,S8,S12,M13)(B)

9. Give an account on poverty and environment. (S7,J10,J12)(B)

10. Write about the fresh water resources and the reason for fresh water

shortage. (S10)(B)



PREVIOUS YEARS – PUBLIC EXAMINATION QUESTIONS 62

11. How are reuse and recycling techniques useful in management of solid

wastes? Add a note on waste water treatment and management. (M11)

12. Write an essay about Freshwater Management. (J6,M9,S13)

6. APPLIED BIOLOGY (Q.37)

1. Give account of origin, distribution, characters and milk production of dairy

breeds. (or) Give an account of Gir and Sindhi diary (S6,M13)(B)

2. Explain any two contagious diseases and two non-contagious diseases

found in cattle. Mention about their prevention. (or) Write an essay on

common diseases of cattle. (or) Give a detailed account on the contagious

diseases of cattle. (J7,M8,J8)(B)

3. How will you classify cattle based on their purpose? Give two examples for

each. What are the various techniques adopted in cattle breeding?(M6,B)

4. What are the techniques adopted in cattle breeding? Write a short note on

the exotic breeds of cattle. (M10)

5. Explain the important-stages (or) steps in rearing of chickens. (or) Explain

the stages involved in the rearing of poultry. (or) Describe poultry farming

methods. (or) Explain the important stages in rearing and write any two

factors involved in brooding of chickens. (M7,S7,S10,J13,S13)

6. What are the categories of fish farming? Explain the characters of

cultivable fish. (S11)

7. Write a detailed account on the preparation of fish pond and its

maintenance. (M9,J11)

8. Write the management of fish farm and explain any two edible fishes of

Tamil Nadu. (J6)9. Write about the instruments used to detect the heart beat and to measure

the blood pressure. (J10)

10. Briefly describe the P, Q, R, S, T waves of ECG. (S9,M11)

11 Gi d t il d t f l t di d PQRST (J12)

s12 paq em phy,che,bio upto sep 13

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