# Solved papers for CET Karnataka Medical CET - Karnataka Medical Solved Paper-2013

### done CET - Karnataka Medical Solved Paper-2013

• question_answer1) When an additional charge of 2C is given to a capacitor, energy stored in it is increased by 21%. The original charge of the capacitor is

A) $30C$

B) $40C$

C) $10C$

D) $20C$

• question_answer2) When a potential difference of ${{10}^{3}}V$is applied between A and B, a charge of 0.75 mC is stored in the system of capacitors as shown. The value of C is ( in $\mu F$)

A) $\frac{1}{2}$

B) $2$

C) $2.5$

D) $3$

• question_answer3) See the diagram. Area of each plate is $2.0{{m}^{2}}$and $d=2\times {{10}^{-3}}m$. A charge of $8.85\times {{10}^{-8}}C$is given to Q. Then the potential 2d of Q becomes

A) $13V$

B) $10V$

C) $6.67V$

D) $8.825V$

• question_answer4) Three conductors draw currents of 1 A, 2 A and 3 A respectively, when connected in turn across a battery. If they are connected in series and the combination is connected across the same battery, the current drawn will be

A) $\frac{2}{7}A$

B) $\frac{3}{7}A$

C) $\frac{4}{7}A$

D) $\frac{5}{7}A$

E) None of the Above

• question_answer5) In the circuit, ${{R}_{1}}={{R}_{2}}$. The value of E and ${{R}_{1}}$ are ____ (E - EMF, ${{R}_{1}}$- resistance)

A) $180V,60\Omega ~$

B) $120V,60\Omega ~$

C) $180V,10\Omega ~$

D) $120V,10\Omega ~$.

E) None of the Above

• question_answer6) Masses of three wires of copper are in the ratio of $1:3:5$and their lengths are in the ratio of $5:3:1$. The ratio of their electrical resistances is

A) $1:3:5$

B) $5:3:1$

C) $1:15:125$

D) $125:15:1$

• question_answer7) For a transformer, the turns ratio is 3 and its efficiency is 0.75. The current flowing in the primary coil is 2 A and the voltage applied to it is 100 V. Then the voltage and the current flowing in the secondary coil are _____ respectively.

A) $150V,1.5A$

B) $300V,0.5A$

C) $300V,1.5A$

D) $150V,0.5\text{ }A$

• question_answer8) A proton and helium nucleus are shot into a magnetic field at right angles to the field with same kinetic energy. Then the ratio of their radii is

A) $1:1$

B) $1:2$

C) $2:1$

D) $1:4$

• question_answer9) Two identical circular coils A and B are kept on a horizontal tube side by side without touching each other. If the current in the coil A increases with time, in response, the coil B

A) is attracted by A

B) remains stationary

C) is repelled

D) rotates

• question_answer10) In the diagram, are the strength of the currents in the loop and straight conductors respectively. OA=OB=R. The net magnetic field at the canter O is zero. Then the ratio of the currents in the loop and the straight conductors is

A) $\pi$

B) $2\pi$

C) $\frac{1}{\pi }$

D) $\frac{1}{2\pi }$

• question_answer11) Two tangent galvanometers, which are identical except in their number of turns are connected in parallel. he ratio of their resistances of the coils is $1:3$. If the deflections in the two tangent galvanometers are ${{30}^{o}}$and ${{60}^{o}}$ respectively, then the ratio of their number of turns is

A) $1:1$

B) $3:1$

C) $1:2$

D) $1:6$

E) None of the Above

• question_answer12) A charged particle with a velocity $2\times {{10}^{3}}m{{s}^{-1}}$ passes unelected through electric field and magnetic fields in mutually perpendicular directions. The magnetic field is 1.5 T. The magnitude of electric field will be

A) $1.5\times {{10}^{3}}N{{C}^{-1}}$

B) $2\times {{10}^{3}}N{{C}^{-1}}$

C) $8\times {{10}^{3}}N{{C}^{-1}}$

D) $1.33\times {{10}^{3}}N{{C}^{-1}}$

• question_answer13) In R-L-C series circuit, the potential differences across each element is 20 V. Now the value of the resistance alone is doubled, then P.D. across R, L and C respectively

A) $20V,10V,10V$

B) $20V,20V,20V$

C) $20V,40V,40V$

D) $10V,20V,20V$

• question_answer14) A rectangular coil of 100 turns and size$0.1m\times 0.05m$ is placed perpendicular to a magnetic field of 0.1 T. If the field drops to 0.05 T in 0.05 second, the magnitude of the e.m.f. induced in the coil is

A) $\sqrt{2}$

B) $\sqrt{3}$

C) $\sqrt{0.6}$

D) $\sqrt{6}$

E) None of the Above

• question_answer15) In the circuit diagram, heat produces in R, 2R and 1.5R are in the ratio of

A) $4:2:3$

B) $8:4:27$

C) $2:4:3$

D) $27:8:4$

• question_answer16) A series combination of resistor (R), capacitor is connected to an A.C. source of angular frequency W. Keeping the voltage same, if the frequency is changed to$\frac{\omega }{3}$, the current becomes half of the ; original current. Then the ratio of the capacitive reactance and resistance at the former frequency is

A) $\sqrt{0.6}$

B) $\sqrt{3}$

C) $\sqrt{2}$

D) $\sqrt{6}$

• question_answer17) Pick out the correct statement from the following:

A) Mercury vapour lamp produces line emission spectrum.

B) Oil flame produces line emission spectrum.

C) Band spectrum helps us to study molecular structure.

D) Sunlight spectrum is an example for line absorption spectrum.

• question_answer18) Light emitted during the de excitation of electron from $n=3$ to $n=2$, when incident on a metal, photoelectrons are just emitted from that metal. In which of the following dexcitations photoelectric effect is not possible?

A) From $n=2$ to $n=1$

B) From $n=3$ to $n=1$

C) From $n=5$ to $n=2$

D) From $n=4$ to $n=3$

• question_answer19) The additional energy that should be given to an electron to reduce its de-Broglie wavelength from nm to 0.5 nm is

A) 2 times the initial kinetic energy

B) 3 times the initial kinetic energy

C) 0.5 times the initial kinetic energy

D) 4 times the initial kinetic energy

• question_answer20) The ionisation energy of an electron in the ground state of helium atom is 24.6 eV. The energy required to remove both the electron is

A) $51.8eV$

B) $79\text{ }eV$

C) $38.2eV$

D) $49.2\text{ }eV$

 ____________ $3E$ ____________ $5E/3$ ____________ $E$
The figure shows the energy level of certain atom. When the electron deexcites from $3E$ to$E$, an electromagnetic wave of wavelength $\lambda$ is emitted. What is the wavelength of the electromagnetic wave emitted when the electron de excites from $\frac{5E}{3}$to E?

A) $3\lambda$

B) $2\lambda$

C) $5\lambda$

D) $\frac{3\lambda }{5}$

• question_answer22) Maximum velocity of the photoelectron emitted by a metal is $1.8\times {{10}^{6}}m{{s}^{-1}}$. Take the value of specific charge of the electron is $1.8\times {{10}^{11}}C\,k{{g}^{-1}}$. Then the stopping potential in volt is

A) $1$

B) $3$

C) $9$

D) $6$

• question_answer23) ${{\lambda }_{1}}$ and ${{\lambda }_{2}}$ are used to illuminate the slits. ${{\beta }_{1}}$ and ${{\beta }_{2}}$ are the corresponding fringe widths. The wavelength ${{\lambda }_{1}}$ can produce photoelectric effect when incident on a metal. But the wavelength ${{\lambda }_{2}}$ cannot produce photoelectric effect. The correct relation between ${{\beta }_{1}}$ and ${{\beta }_{2}}$ is

A) ${{\beta }_{1}}<{{\beta }_{2}}$

B) ${{\beta }_{1}}={{\beta }_{2}}$

C) ${{\beta }_{1}}>{{\beta }_{2}}$

D) ${{\beta }_{1}}\ge {{\beta }_{2}}$

• question_answer24) Pick out the correct statement/s from the following. (1) Electron emission during p-decay is always accompanied by neutrino. (2) Nuclear force is charge independent. (3) Fusion is the chief source of stellar energy.

A) (1), (2) are correct

B) (1), (3) are correct

C) Only (1) is correct

D) (2), (3) are correct

• question_answer25) A nucleus $_{Z}{{X}^{A}}$ emits an a-particle with velocity v. The recoil speed of the daughter nucleus is

A) $\frac{A-4}{4v}$

B) $\frac{4v}{A-4}$

C) $v$

D) $\frac{v}{4}$

• question_answer26) A radioactive substance emits 100 beta particles in the first 2 seconds and 50 beta particles in the next 2 seconds. The mean life of the sample is

A) 4 seconds

B) 2 seconds

C) $\frac{2}{0.693}$seconds

D) $2\times 0.693$ seconds

• question_answer27) In which of the following statements, the obtained impure semiconductor is of$p-type$?

A) Germanium is doped with bismuth

B) Silicon is doped with antimony

C) Germanium is doped with gallium

D) Silicon is doped with phosphorus

• question_answer28) The width of the depletion region in a P-N junction diode is

A) increased by reverse bias

B) increased by forward bias

C) decreased by reverse bias

D) independent of the bias voltage -

• question_answer29) When the transistor is used as an amplifier

A) Emitter-base junction must be reverse biased, Collector-base junction must be forward biased.

B) Emitter-base junction must be forward biased, Collector-base junction must be forward biased.

C) Emitter-base junction must be reverse biased, Collector-base junction must be reverse biased.

D) Emitter-base junction must be forward biased, Collector-base junction must be reverse biased.

A) Neutron

B) Positron

C) Proton

D) $\pi$-meson

• question_answer31) Which one of the following is NOT correct?

A) In forward biased condition diode conducts.

B) If the packing fraction is negative, the element is stable.

C) Binding energy is the energy equivalent to mass defect.

D) Radioactive element can undergo spontaneous fission.

• question_answer32) The output of an OR gate is connected to both the inputs of a NAND gate. The combination will serve as

A) AND gate

B) NOT gate

C) NAND gate

D) NOR gate

• question_answer33) A and B are the two radioactive elements. The mixture of these elements show a total activity of 1200 disintegrations/minute. The half life of A is 1 day and that of B is 2 days. What will be the total activity after 4 days? Given: The initial number of atoms in A and B are equal.

A) 200dis/min

B) 250 dis/min

C) 500 dis/min

D) 150 dis/min

• question_answer34) The binding energy/nucleon of deuteron ${{(}_{1}}{{H}^{2}})$and the helium atom ${{(}_{2}}H{{e}^{4}})$ are $1.1MeV$and $7MeV$respectively. If the two deuteron atoms fuse to form a single helium atom, then the energy released is

A) $26.9\text{ }MeV$

B) $25.8\text{ }MeV$

C) $23.6\text{ }MeV$

D) $12.9\text{ }MeV$

• question_answer35) Which one of the following is NOT correct?

A) Dimensional formula of thermal conductivity $\left( K \right)$ is ${{M}^{1}}{{L}^{1}}{{T}^{-3}}{{K}^{-1}}$.

B) Dimensional formula of potential $\left( V \right)$, ${{M}^{1}}{{L}^{1}}{{T}^{-2}}{{A}^{-1}}$.

C) Dimensional formula of permeability of free space $({{\mu }_{0}})$ is ${{M}^{1}}{{L}^{1}}{{T}^{-2}}{{A}^{-2}}$

D) Dimensional formula of $RC$is ${{M}^{0}}{{L}^{0}}{{T}^{-1}}$.

• question_answer36) In a lift moving up with an acceleration of $5m{{s}^{-2}}$, a ball is dropped from a height of 1.25 m. The time taken by the ball to reach the floor of the lift is ......(nearly) (g $=10m{{s}^{-2}}$)

A) 0.3 second

B) 0.2 second

C) 0.16 second

D) 0.4 second

• question_answer37) A gun fires a small bullet with kinetic energy K. Then kinetic energy of the gun while recoiling is

A) K

B) more than K

C) less than K

D) $\sqrt{K}$

• question_answer38) From a fixed support, two small identical spheres arc suspended by means of strings of length 1 m each. They are pulled aside as shown and then released. B is the mean position. Then the two spheres collide,

A) at B after 0.25 second

B) at B after 0.5 second

C) on the right side of B after some time

D) on the right side of B when the strings are inclined at ${{15}^{o}}$ with B

• question_answer39) A truck accelerates from speed v to 2v. Work done in during this is

A) three times as the work done in accelerating it from rest to v.

B) . same as the work done in accelerating it from rest to v.

C) four times as the work done in accelerating it from rest to v.

D) less than the work done in accelerating it from rest to v.

• question_answer40) Earth is moving around the Sun in elliptical orbit as shown. The ratio of OB and OA is R. Then ratio of Earth at A and B is

A) ${{R}^{-1}}$

B) $\sqrt{R}$

C) $R$

D) ${{R}^{2/3}}$

E) None of the Above

• question_answer41) A projectile is projected at $10\text{ }m{{s}^{-1}}$cby making at an angle ${{60}^{o}}$ to the horizontal. After some time its velocity makes an angle of ${{30}^{o}}$ to the horizontal. Its speed at this instant is

A) $\frac{10}{\sqrt{3}}$

B) $10\sqrt{3}$

C) $\frac{5}{\sqrt{3}}$

D) $5\sqrt{3}$

• question_answer42) For which combination of working temperatures of source and sink, the efficiency of Carnots heat engine is maximum?

A) $600K,400K$

B) $400K,200K$

C) $500K,300K$

D) $300K,100K$

• question_answer43) A solid cylinder of radius R made of a material of thermal conductivity ${{K}_{1}}$ is surrounded by a cylindrical shell of inner radius R and outer radius 1R made of a material of thermal conductivity${{K}_{2}}$. The two ends of the combined system are maintained at two different temperatures. Then there is no loss of heat across the cylindrical surface and the system is in steady state. The effective thermal conductivity of the system is

A) ${{K}_{1}}+{{K}_{2}}$

B) $\frac{{{K}_{1}}{{K}_{2}}}{{{K}_{1}}+{{K}_{2}}}$

C) $\frac{3{{K}_{1}}+{{K}_{2}}}{4}$

D) $\frac{{{K}_{1}}+3{{K}_{2}}}{4}$

• question_answer44) Two stars A and B radiate maximum energy at the wavelengths of 360 nm and 480 nm respectively. Then the ratio of the surface temperatures of A and B is

A) $3:4$

B) $81:256$

C) $4:3$

D) $256:81$

• question_answer45) Two solids P and Q float in water. It is observed that P floats with half of its volume immersed and Q floats with $\frac{{{2}^{rd}}}{3}$ of its volume is immersed. The ratio of densities of P and Q is

A) $\frac{4}{3}$

B) $\frac{3}{4}$

C) $\frac{2}{3}$

D) $\frac{3}{2}$

• question_answer46) The equation of a transverse wave is given by $y=0.05\sin \pi (2t-0.02x)$, where x, y are in metre and t is in second. The minimum distance of separation between two particles which are in phase and the wave velocity are respectively ____

A) $50m,50m{{s}^{-1}}$

B) $100m,100m{{s}^{-1}}$

C) $50m,100m{{s}^{-1}}$

D) $100m,50m{{s}^{-1}}$

• question_answer47) The frequency of the second overtone of the open pipe is equal to the frequency of first overtone of the closed pipe. The ratio of the lengths of the open pipe and the closed pipe is

A) $2:1$

B) $1:2$

C) $1:3$

D) $3:1$

• question_answer48) A person with vibrating tuning fork of frequency 338 Hz is moving towards a vertical wall with a speed of $2\text{ }m{{s}^{-1}}$. Velocity of sound in air is $340m{{s}^{-1}}$. The number of beats heard by that person per second is

A) $2$

B) $4$

C) $6$

D) $8$

• question_answer49) Pick out the WRONG statement from the following.

A) Lateral shift increases as the angle of incidence increases.

B) Lateral shift increases as the value of refractive index increases.

C) Normal shift decreases as the value of refractive index increases.

D) Both normal shift and lateral shift are directly proportional to the thickness of the medium.

• question_answer50) The refraction through the prisms are as shown. Pick out the WRONG statement from the following. Path of the light ray in

A) (i) is correct if ${{n}_{2}}>{{n}_{1}}$ and ${{n}_{2}}>{{n}_{3}}$

B) (ii) is correct if ${{n}_{1}}={{n}_{2}}$ and ${{n}_{2}}>{{n}_{3}}$

C) (iii) is correct if ${{n}_{2}}>{{n}_{1}}$ and ${{n}_{2}}={{n}_{3}}$

D) (iv) is correct if ${{n}_{1}}>{{n}_{2}}$ and ${{n}_{2}}<{{n}_{3}}$

• question_answer51) The distance between an object and its real image produced by a converging lens is 0.72 m. The magnification is 2. What will be the magnification when the object is moved by 0.04 m towards the lens?

A) 2

B) 4

C) 3

D) 6

• question_answer52) The speed of light in media ${{M}_{1}}$and ${{M}_{2}}$ are $1.5\times {{10}^{8}}m{{s}^{-1}}$ and $2\times {{10}^{8}}m{{s}^{-1}}$respectively. A ray travels from medium ${{M}_{1}}$ to the medium ${{M}_{2}}$ with an angle of incidence $\theta$. The ray suffers total internal reflection. Then the value of the .angle of incidence $\theta$ is

A) $>{{\sin }^{-1}}\left( \frac{3}{4} \right)$

B) $<{{\sin }^{-1}}\left( \frac{3}{4} \right)$

C) $={{\sin }^{-1}}\left( \frac{4}{3} \right)$

D) $\le {{\sin }^{-1}}\left( \frac{4}{3} \right)$

• question_answer53) Which of the following phenomena support the wave theory of light?

 1. Scattering 2. Interference 3.Diffraction 4. Velocity of light in a denser medium is less than the velocity of light in the rarer medium

A) $1,2,3$

B) $1,2,4$

C) $2,3,4$

D) $1,3,4$

• question_answer54) White light reflected from a soap film (Refractive index = 1.5) has a maxima at 600 nm and a minima at 450 nm with no minimum in between. Then the thickness of the film is ____$\times {{10}^{-7}}m$.

A) 1

B) 2

C) 3

D) 4

• question_answer55) A cylindrical tube of length 0.2 m and radius R with sugar solution of concentration C produce a rotation of $\theta$ in the plane of vibration of a plane polarized light. The same sugar solution is transferred to another tube of length 0.3 m of same radius. The remaining gap is filled by distilled water. Now the optical rotation produced is

A) $\theta$

B) $2\frac{\theta }{3}$

C) $3\frac{\theta }{2}$

D) $9\frac{\theta }{4}$

• question_answer56) Radii of curvature of a converging lens are in the ratio $1:2$. Its focal length is 6 cm and refractive index is 1.5. Then its radii of curvature are ____respectively.

A) 9 cm and 18 cm

B) 6 cm and 12 cm

C) 3 cm and 6 cm

D) 4.5 cm and 9 cm

• question_answer57) A small oil drop of mass ${{10}^{-6}}kg$ is hanging in at rest between two plates separated by 1 mm having a potential difference of 500 V. The charge on the drop is ____ $(g=10m{{s}^{-2}})$

A) $2\times {{10}^{-9}}C$

B) $2\times {{10}^{-11}}C$

C) $2\times {{10}^{-6}}C$

D) $2\times {{10}^{-8}}C$

• question_answer58) A uniform electric field in the plane of the paper as shown. Here A, B, C, D are the points on the circle. ${{V}_{1}},{{V}_{2}},{{V}_{3}},{{V}_{4}}$ are the potentials at those points respectively. The

A) ${{V}_{A}}={{V}_{C}},{{V}_{B}}={{V}_{D}}$

B) ${{V}_{A}}={{V}_{C}},{{V}_{B}}>{{V}_{D}}$

C) ${{V}_{A}}>{{V}_{C}},{{V}_{B}}>{{V}_{D}}$

D) ${{V}_{A}}={{V}_{B}},{{V}_{C}}={{V}_{D}}$

E) None of the Above

• question_answer59) Two metal spheres of radii 0.01 m and 0.02 m are given a charge of $15mC$and $45mC$respectively. They are then connected by a wire. The final charge on the first sphere is ____$\times {{10}^{-3}}C$

A) $40$

B) $30$

C) $20$

D) $10$

• question_answer60) Two concentric spheres of radii R and r have positive charges ${{q}_{1}}$and ${{q}_{2}}$ with equal surface charge densities. What is the electric potential at their common center?

A) $\frac{\sigma }{{{\varepsilon }_{0}}}(R+r)$

B) $\frac{\sigma }{{{\varepsilon }_{0}}}(R-r)$

C) $\frac{\sigma }{{{\varepsilon }_{0}}}\left( \frac{1}{R}+\frac{1}{r} \right)$

D) $\frac{\sigma }{{{\varepsilon }_{0}}}\left( \frac{R}{r} \right)$

• question_answer61) Methane can be converted into ethane by the Reactions

A) chlorination followed by the reaction with alcoholic $KOH$

B) chlorination followed by the reaction with aqueous $KOH$

C) Chlorination followed by Wurtz reaction

D) Chlorination followed by decarboxylation.

• question_answer62) Intramolecular hydrogen bonding is formed in

A) ${{H}_{2}}O$

B) salicylaldehyde

C) $N{{H}_{3}}$

D) benzophenone.

• question_answer63) If 50% of the reactant is converted into a product in a first order reaction in 25 minutes, how much of it would react in 100 minutes?

A) $93.75%$

B) $87.5%$

C) $75%$

D) $100%$

• question_answer64) The number of optical isomers of the compound, $C{{H}_{3}}-CHBr-CHBr-COOH$ is

A) $0$

B) $1$

C) $3$

D) $4$

• question_answer65) When limestone is heated, $C{{O}_{2}}$ is given off. The metallurgical operation is

A) smelting

B) reduction

C) calcination

D) roasting.

• question_answer66) The rate of reaction increases with rise in temperature because of

A) increase in number of activated molecules

B) increase in energy of activation

C) decrease in energy of activation

D) increase in the number of effective collisions.

• question_answer67) Meso compounds do not show optical activity because

A) they do not contain chiral carbon atoms

B) they have non-superimposable mirror images

C) they contain plane of symmetry

D) they do not contain plane of symmetry.

• question_answer68) When formic acid is heated with concentrated ${{H}_{2}}S{{O}_{4}}$, the gas evolved is

A) only $C{{O}_{2}}$

B) only $CO$

C) a mixture of $CO$ and $C{{O}_{2}}$

D) a mixture of $S{{O}_{2}}$and $C{{O}_{2}}$

• question_answer69) Temperature coefficient of a reaction is 2. When temperature is increased from ${{30}^{o}}C$to ${{90}^{o}}C$, the rate of reaction is increased by

A) 60 times

B) 64 times

C) 150 times

D) 400 times

• question_answer70) Conversion of benzene to acetophenone can e brought by

A) Wurtz reaction

B) Wurtz-Fittigs reaction

C) Friedel Crafts alkylation

D) Friedel Crafts acylation.

• question_answer71) Excess of $PC{{l}_{5}}$ reacts with concentrated ${{H}_{2}}S{{O}_{4}}$ giving

A) chlorosulphuric acid

B) sulphurous acid

C) sulphuryl chloride

D) thionyl chloride.

• question_answer72) An example for a neutral buffer is

A) ammonium hydroxide and ammonium chloride

B) acetic acid and sodium acetate

C) acetic acid and ammonium hydroxide

D) citric acid and sodium citrate.

• question_answer73) Least energetic conformation of cyclohexane is

A) chair conformation

B) boat conformation

C) cis conformation

D) E-Z form.

• question_answer74) Which of the following is employed in flash tubes in photography?

A) $Ar$

B) $Ne$

C) $Kr$

D) $Xe$

• question_answer75) Conjugate base of H2P04- is

A) $HPO_{4}^{-}$

B) $HPO_{4}^{2-}$

C) ${{H}_{3}}P{{O}_{4}}$

D) $PO_{4}^{3-}$

• question_answer76) An alkyi bromide (X) reacts with sodium in ether to form 4, 5-diethyloctane, the compound X is

A) $C{{H}_{3}}{{(C{{H}_{2}})}_{3}}Br$

B) $C{{H}_{3}}{{(C{{H}_{2}})}_{5}}Br$

C) $C{{H}_{3}}{{(C{{H}_{2}})}_{3}}CH(Br)C{{H}_{3}}$

D) $C{{H}_{3}}-{{(C{{H}_{2}})}_{2}}-CH(Br)-C{{H}_{2}}-C{{H}_{3}}$

• question_answer77) Which one of the following shows highest magnetic moment?

A) $F{{e}^{2+}}$

B) $C{{o}^{2+}}$

C) $C{{r}^{3+}}$

D) $N{{i}^{2+}}$

• question_answer78) The emf of a galvanic cell constituted with the electrodes $Z{{n}^{2+}}|Zn(-0.76V)$ and $F{{e}^{2+}}|Fe$ $(-0.41V)$ is

A) $-0.35V$

B) $+1.17V$

C) $+0.35V$

D) $-1.17V$

• question_answer79) which of the following pairs are correctly hatched?

 Reactants Products I. $RX+Ag{{(OH)}_{(eq)}}$ $RH$ II. $RX+AgC{{N}_{(alc)}}$ $RNC$ III. $RX+KC{{N}_{(alc)}}$ $RNC$ IV. $RX+N{{a}_{(ether)}}$ $R-R$

A) I alone

B) I and II

C) II and III

D) II and IV

• question_answer80) In a transition series, with the increase in atomic number, the paramagnetism

C) first increases to a maximum and then decreases

D) first decreases to a minimum and then increases

• question_answer81) Identify a species which is NOT a Bronsted acid but a Lewis acid.

A) $B{{F}_{3}}$

B) $H_{3}^{+}O$

C) $N{{H}_{3}}$

D) $HCl$

• question_answer82) The compound formed when calcium acetate and calcium formate is dry distilled.

A) Acetone

B) Acetaldehyde

C) Benz aldehyde

D) Acetophenone

• question_answer83) ${{d}^{2}}-s{{p}^{3}}$ hybridisation of the atomic orbitals gives

A) square planar structure

B) triangular structure

C) tetrahedral structure

D) octahedral structure.

• question_answer84) The pH of ${{10}^{-8}}HCl$solution is

A) 8

B) 6.9586

C) more than 8

D) slightly more than 7

• question_answer85) Which of the following is strongly acidic?

A) Phenol

B) o-cresol

C) p-nitrophenol

D) p-cresol

• question_answer86) A group of atoms can function as a ligand only when

A) it is a small molecule

B) it has an unshared electron pair

C) it is a negatively charged ion

D) it is a positively charged ion.

• question_answer87) Which of the following is NOT a colligative property?

A) Elevation in boiling point

B) Depression in freezing point

C) Osmotic pressure

D) Lowering of vapour pressure

• question_answer88) Acetone and propanal are

A) functional isomers

B) position isomers

C) geometrical isomers

D) optical isomers.

• question_answer89) Which of the following is diamagnetic?

A) ${{H}^{2+}}$

B) $H{{e}^{2+}}$

C) ${{O}_{2}}$

D) ${{N}_{2}}$

• question_answer90) $3g$of urea is dissolved in $45g$of${{H}_{2}}O$. The relative lowering in vapour pressure is

A) $0.05$

B) $0.04$

C) $0.02$

D) $0.01$

• question_answer91) The reagent used to distinguish between acetaldehyde and Benz aldehyde is

A) Tollens reagent

B) Fehlings solution

C) 2, 4-dinitrophenylhydrazine

D) semicarbazide

• question_answer92) Metallic lustre is due to

A) high density of metals

B) high polish on the surface of metals

C) reflection of light by mobile electrons

D) chemical inertness of metals.

• question_answer93) Which of the following aqueous solution will exhibit highest boiling point?

A) $0.01M$urea

B) $0.01M$ $KN{{O}_{3}}$

C) $0.01M$$N{{a}_{2}}S{{O}_{4}}$

D) $0.015M$${{C}_{6}}{{H}_{12}}{{O}_{6}}$

• question_answer94) Which one of the following gives amine on heating with amide?

A) $B{{r}_{2}}$ in aqueous KOH

B) $B{{r}_{2}}$ in alcoholic KOH

C) $C{{l}_{2}}$ in sodium

D) Sodium in ether

• question_answer95) The number of antibonding electrons present in ${{O}_{2}}$ molecular ion is

A) $8$

B) $6$

C) $5$

D) $4$

E) None of the Above

• question_answer96) The process is spontaneous at the given temperature, if

A) $\Delta H$ is $+ve$ and $\Delta S$ is -$-ve$

B) $\Delta H$ is $-ve$ and $\Delta S$ is $+ve$

C) $\Delta H$ is $+ve$ and $\Delta S$ is +$+ve$

D) $\Delta H$ is $+ve$ and $\Delta S$ is equal to zero.

• question_answer97) Glucose when reduced with HI and red phosphorus gives

A) n-hexane

B) n-heptane

C) n-pentane

D) n-octane.

• question_answer98) The stability of a lyophobic colloid is due to

A) adsorption of covalent molecules on the colloid

B) the size of the particles

C) the charge on the particles

D) Tyndall effect.

• question_answer99) Oils are liquids at room temperature since they contain higher percentage of

A) oleates

B) palmitates

C) stearates

D) myristates

• question_answer100) Which of the following cations will have minimum flocculation value for arsenic sulphide sol?

A) $N{{a}^{+}}$

B) $M{{g}^{2+}}$

C) $C{{a}^{2+}}$

D) $A{{l}^{3+}}$

• question_answer101) The value of entropy of solar system is

A) increasing

B) decreasing

C) constant

D) zero

• question_answer102) In face-centred cubic lattice, a unit cell is shared equally by how many unit cells?

A) $6$

B) $4$

C) $2$

D) $8$

A) $4$

B) $3$

C) $2$

D) $1$

• question_answer104) The process of zone refining is used in the purification of

A) $Al$

B) $Ge$

C) $Cu$

D) $Ag$

• question_answer105) The number of water molecules present in a drop of water weighing 0.018 g is

A) $6.022\times {{10}^{26}}$

B) $6.022\times {{10}^{23}}$

C) $6.022\times {{10}^{19}}$

D) $6.022\text{ }\times {{10}^{20}}$

• question_answer106) Empirical formula of a compound is $C{{H}_{2}}O$ and its molecular mass is 90, the molecular formula of the compound is

A) ${{C}_{3}}{{H}_{6}}{{O}_{3}}$

B) ${{C}_{2}}{{H}_{4}}{{O}_{2}}$

C) ${{C}_{6}}{{H}_{12}}{{O}_{6}}$

D) $C{{H}_{2}}O$

• question_answer107) Hybridised states of carbon in graphite and diamond are respectively

A) $s{{p}^{3}},s{{p}^{3}}$

B) $s{{p}^{3}},s{{p}^{2}}$

C) $s{{p}^{2}},s{{p}^{2}}$

D) $s{{p}^{2}},s{{p}^{3}}$

• question_answer108) The mass of $112c{{m}^{3}}$of $N{{H}_{3}}$gas at STP is

A) $0.085g$

B) $0.850g$

C) $8.500g$

D) $80.500g$

• question_answer109) IUPAC name of $C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-\underset{COOH}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}$ is

A) 4-hydroxy-l-methyl pentanoic acid

B) 4-hydroxy-2-methyl pentanoic acid

C) 2-hydroxy-4-methyl pentanoic acid

D) 2-hydroxy-2-methyl pentanoic acid

• question_answer110) Alkali metals have negative reduction potential and hence they behave as

A) oxidising agents

B) Lewis bases

C) reducing agents

D) electrolytes

• question_answer111) Which of the following gases has the highest value of RMS velocity at 298 K?

A) $C{{H}_{4}}$

B) $CO$

C) $C{{l}_{2}}$

D) $C{{O}_{2}}$

• question_answer112) Cycloalkane formed when 1,4-dibroinopentane is heated with sodium is

A) methyl cyclobutane

B) cyclopentane

C) cyclobutane

D) methyl cyclopentane.

• question_answer113) In the reaction, $2FeS{{O}_{4}}+{{H}_{2}}S{{O}_{4}}+{{H}_{2}}{{O}_{2}}\to F{{e}_{2}}{{(S{{O}_{4}})}_{3}}+2{{H}_{2}}O$ the oxidizing agent is

A) $FeS{{O}_{4}}$

B) ${{H}_{2}}S{{O}_{4}}$

C) ${{H}_{2}}{{O}_{2}}$

D) both ${{H}_{2}}S{{O}_{4}}$and ${{H}_{2}}{{O}_{2}}$

• question_answer114) For the thermochemical equation, $2{{H}_{2(g)}}+{{O}_{2(g)}}\to 2{{H}_{2}}{{O}_{(l)}};\,\Delta H=-571.6kJ$ Heat of decomposition of water is

A) $-571.6\text{ }kJ$

B) $+571.6\text{ }kJ$

C) $-1143.2\text{ }kJ$

D) $+285.8kJ$

• question_answer115) In Buna-S, the symbol Bu stands for

A) 1-butene

B) n-butene

C) 2-butene

• question_answer116) The electronic configuration of $C{{u}^{2+}}$ ion is

A) $[Ar]\,3{{d}^{8}}\,4{{s}^{1}}$

B) $[Ar]\,3{{d}^{9}}\,4{{s}^{0}}$

C) $[Ar]\,3{{d}^{7}}\,4{{s}^{2}}$

D) $[Ar]\,3{{d}^{8}}\,4{{s}^{0}}$

• question_answer117) The yield of the products in the reaction, ${{A}_{2(g)}}+2{{B}_{(g)}}\rightleftharpoons {{C}_{(g)}}+Q\,kJ$ would be higher at

A) high temperature and high pressure

B) high temperature and low pressure

C) low temperature and high pressure

D) low temperature and low pressure.

A) delocalisation of $\pi$-electrons

B) delocalisation of $\sigma$-electrons

C) partial displacement of electrons

D) delocalisation of$\pi$ and $\sigma$-electrons.

• question_answer119) Which one of the following sets of ions represents the collection of isoelectronic species?

A) ${{K}^{+}},C{{l}^{-}},M{{g}^{2+}},S{{c}^{3+}}$

B) $N{{a}^{+}},C{{a}^{2+}},S{{c}^{3+}},{{F}^{-}}$

C) ${{K}^{+}},C{{a}^{2+}},S{{c}^{3+}},C{{l}^{-}}$

D) $N{{a}^{+}},M{{g}^{2+}},A{{l}^{3+}},C{{l}^{-}}$

A) homogeneous catalysis

B) heterogeneous catalysis

C) autocatalysis

D) induced catalysis.

• question_answer121) Match the following list of animals with their level of organization and choose the correct sequence.

 Column I Column II A. Organ level (p) Pheretima B. Cellular aggregate level (q) Fasciola C. Tissue level (r) Spongilla D. Organ system level (s) Obelia

A) $A-(s),B-(r),C-(p),D-(q)$

B) $A-(s),B-(q),C-(r),D-(p)$

C) $A-(q),B-(s),C-(r),D-(p)$

D) $A-(q),B-(r),C-(s),D-(p)$

• question_answer122) Oxidative decarboxylation occurs during the formation of

A) cirtic acid and succinic acid

B) citric acid and oxaloacetic acid

C) acetyl CoA and succinyl CoA

D) oxaloacetic acid and oxalosuccinic acid.

• question_answer123) The edible part of the fruit of apple is

A) endocarp

B) thalamus

C) pericarp

D) perianth.

• question_answer124) Given below is an electron acceptor. Mention its status, which is labelled as A. $Cy{{t}^{++}}\xrightarrow{2{{e}^{-}}}Cy{{t}^{+++}}\bigcirc A$

A) Oxidized

B) Reduced

C) Phosphorylated

D) Hydrated

• question_answer125) The floral formula is that of

A) Hibiscus

B) Banana

C) Tulip

D) Vinca

• question_answer126) Interferoris are the protein molecules produced from the

A) normal cells

B) infected host cells

C) macrophages

D) B lymphocytes.

A) fungal disease

B) viral disease

C) bacterial disease

D) protozoan disease.

• question_answer128) Which of the following statements is correct?

A) Each back cross is a test cross.

B) Each test cross is a back cross.

C) Crossing ${{F}_{2}}$ with ${{F}_{1}}$ is a test cross.

D) Crossing ${{F}_{2}}$ with ${{P}_{1}}$ is called a test cross.

A) dual purpose breed

B) exotic breed

C) crossbreed

D) draught breed.

• question_answer130) Gynaecomastia is the symptom of

A) Klinefelters syndrome

B) Downs syndrome

C) Turners syndrome

D) cri-du-chat syndrome.

• question_answer131) The branch of biology that deals with study of fossil animals is known as

A) parabiology

B) phylogeny

C) paleontology

D) parazoology.

• question_answer132) A colourblind man marries the daughter of another colourblind man whose wife has a normal genotype for colour vision. In their progeny

A) all the children would be colourblind

B) all their sons are colourblind

C) none of the daughters would be colourblind

D) half of their sons and half of their daughters would be colourblind.

• question_answer133) The plant which has antidiabetic properties is

A) Ocimum sanctum

B) Gymnema sylvestre

D) Phyllanthus emblica

A) growing plants and trees in an area where there is no forest

B) growing plants and trees in an area where the forest is removed

C) growing plants and trees in a pond

D) removal of plants and trees.

• question_answer135) Lysosomes are produced by

A) Golgi complex

B) mitochondria

C) endoplasmic reticulum

D) leucoplasts.

• question_answer136) Kokkarebellur Bird Sanctuary is located in

A) Mandya

B) Mysore

C) Chamarajnagar

D) Hassan.

• question_answer137) Which one of the following is also called Sewall Wright effect?

A) Isolation

B) Gene pool

C) Genetic drift

D) Gene flow

A) sacred grove

B) sacred landscape

C) sacred animal

D) endangered animal.

• question_answer139) Put the following parts of a reflex arc in the correct order beginning with the sensory receptor. A. Motor neuron B. Interneuron C. Effector D. Sensory neuron E. Sensory receptor.

A) $E,D,B,A,C$

B) $E,D,A,B,C$

C) $A,B,C,D,E$

D) $A,E,D,B,C$

• question_answer140) The trachea terminates into

A) bronchial tree

B) atrium

C) bronchi

D) alveoli.

• question_answer141) Match the entries in Column - I with those of Column - II and choose the correct answer given below.

 Column - I Column - II A. FSH p. Normal growth B. GH q. Ovulation C. Prolactin r. Parturition D. Oxytocin s. Water diuresis t. Milk secretion

A) $A-(q),B-(p),C-(t),D-(r)$

B) $A-(q),B-(p),C-(t),D-(s)$

C) $A-(p),B-(t),C-(r),D-(q)$

D) $A-(q),B-(t),C-(s),D-(r)$

• question_answer142) Formation of activation calyx in the egg takes place

A) before fertilization

B) after fertilization

C) at the time of cleavage

D) at the time of amphimixis.

• question_answer143) Which of the following part of cockroach leg is attached to thorax ventrally?

A) Trochanter

B) Claw

C) Femur

D) Coxa

• question_answer144) Match the entries in Column - I with those of Column - II and choose the correct answer given below.

 Column - I Column - II [A] Cytokinins (p) Stress hormone [B] Auxins . (q) Ripening of fruits [C] Abscisic acid (r) Apical dominance Ethylene (s) Bolting (t) Richmond Lang effect

A) $A-(t),B-(r),C-(p),D-(q)$

B) $A-(t),B-(r),C-(t),D-(s)$

C) $A-(r),B-(s),C-(q),D-(p)$

D) $A-(q),B-(q),C-(t),D-(r)$

A) pulmonary veins

B) pulmonary artery

C) superior venacava

D) Inferior venacava.

• question_answer146) The semi-digested food that moves down the oesophagus is known as

A) bolus

B) chyme

C) rugae

D) protein .

• question_answer147) During the transportation of gases, to maintain the ionic balance, chloride ions shift from

A) RBCs to plasma

B) plasma to RBCs

C) lungs to blood

D) blood to lungs.

• question_answer148) Read the statements A and B and select the correct option Statement A: Atherosclerosis is a disease characterized by the thickening of arterial walls Statement B : Deposition of cholesterol and triglycerides in the arterial walls causes atherosclerosis.

A) Statement A is correct, B is incorrect.

B) Both the statements are correct but not related to each other.

C) Both the statements are correct and B is the reason for A.

D) Both the statements are incorrect.

• question_answer149) Juxtaglomerular cells secrete A when there is a fall in $\underline{B}$ ion concentration. Choose the correct pair labelled as A and B.

A) A: Renin B : Chloride

B) A: Carbonic anhydrase B : Sodium

C) A: ATPase B : Potassium

D) A: Renin B : Sodium

• question_answer150) Ileocaecal valve is present in between

A) colon and large intestine

B) colon and small intestine

C) stomach and small intestine

D) cardiac, stomach and fundus.

• question_answer151) The diagram given below denotes the various parts of a typical flower. Identify the labelled parts A, B, C and D and choose the correct option.

A) A - Petals, B - Sepals, C - Stamens, D - Pistil

B) a - Sepals, B - Pistil, C - Petals, D - Stamens

C) A - Sepals, B - Pistil, C - Stamens, D - Petals

D) A - Sepals, B - Petals, C - Pistil, D - Stamens

• question_answer152) Read the statements A and B and identify the correct choice from those given below.

 Statement A: The egg of frog is moderately telolecithal. Statement B: Sooner or later the cleavage pattern becomes irregular.

A) Statement A is correct, B is incorrect.

B) Statement B is correct, A is incorrect.

C) Both the statements A and B are correct.

D) Statement A is the reason-for statement B.

• question_answer153) The most unstable RNA is

A) messenger RNA

B) soluble RNA

C) ribosomal RNA

D) heterogeneous nuclear RNA.

• question_answer154) Choose the right one which denotes genetic diversity.

A) Chromosomes$\to$ Nucleotides $\to$ Genes $\to$ Individuals $\to$ Populations

B) Populations $\to$ Individuals $\to$ Chromosomes$\to$Nucleotides $\to$ Genes

C) Genes $\to$ Nucleotides $\to$Chromosomes $\to$Individuals $\to$Populations

D) Nucleotides $\to$ Genes $\to$ Chromosome$\to$ Individuals $\to$Populations

• question_answer155) The portion of an eukaryotic gene which is transcribed but not translated is

A) exon

B) intron

C) cistron

D) codon.

• question_answer156) The appearance of chancre/rashes all over the body are the symptoms of

A) gonorrhoea

B) AIDS

C) syphilis

D) fever.

• question_answer157) Read the statements A and B and select the correct option. Statement A: Synthesis of mRNA takes place in 5- 3 direction. Statement B: Reading of mRNA is always in 3 - 5 direction.

A) Both the statements are incorrect.

B) Statement A is incorrect, B is correct.

C) Statement B is incorrect, A is correct.

D) Both the statements A and B are correct.

A) $NADP{{H}_{2}}$

B) $ATP$

C) $ATP$ and $NADP{{H}_{2}}$

D) $NAD{{H}_{2}}$

• question_answer159) Eco RI cleaves the DNA strands to produce

A) blunt ends

B) sticky ends

C) satellite ends

D) ori replication end.

• question_answer160) Read the statements A and B and identify the correct choice from those given. Statement A: Women are at the peak of conception on the 14th day of menstrual cycle. Statement B: Vasectomy is the method normally employed to avoid conception in females.

A) Statement A is incorrect, B is correct.

B) Statement A is correct, B is incorrect.

C) Both the statements are correct.

D) Both the statements are incorrect.

• question_answer161) The sequence of nitrogenous bases in one strand of DNA are $3TAC\text{ }GCG\text{ }ACG\text{ }5.$The complementary DNA strand should have

A) $5\,AUG\,\,CGC\,\,\,TGC\,3$

B) $3ATG\,\,CGC\,\,TGC\,5~$ .

C) 5UAC GCG ACG 3

D) $5ATG\text{ }CGC\text{ }TGC\text{ }3$

• question_answer162) Which one of the following statements is correct regarding spinal cord?

A) It is composed of outer grey matter and inner white matter.

B) It is composed of outer white matter and inner grey matter.

C) It is composed of outer grey matter and inner colorless matter.

D) It is composed of grey matter only.

• question_answer163) Match the entries in Column - I with those of Column - II and choose the correct answer.

 Column -1 Column - II [A] Restriction endonucteases (p) Kohler and Milstein [B] Poly merase chain (q) Alee Jeffreys Reaction [C] DNA fingerprinting (r) Arber [D] Monoclonal antibodies (s) Karry Mullis

A) $A-(r),B-(s),C-(q),D-(p)$

B) $A-(r),B-(q),C-(s),D-(p)$

C) $A-(q),B-(r),C-(s),D-(p)$

D) $A-(q),B-(s),C-(r),D-(q)$

• question_answer164) Which taxonomic term may be suggested for any rank in the classification?

A) Class

B) Order

C) Species

D) Taxon

• question_answer165) In one of the techniques of recombinant insulin production the genes for a and P polypeptides were inserted into the plasmid by the side of

A) antibiotic resistance gene

B) lac z promoter gene

C) $\beta$- galactosidase gene

D) ori site

• question_answer166) Which one site of the following does not belong to Kingdom Monera?

A) Slime moulds

B) Mycoplasma

C) Eubacteria

D) Archaebacteria

• question_answer167) The diagram given below represents the T.S. of a monocot leaf. Identify the parts labelled as A, B, C and D, identify their functions and choose the correct option from those given below.

A)

 A: Motor action B: Photosynthesis C: Conduction D: Transpiration

B)

 A: Motor action B: Conduction C: Photosynthesis D: Transpiration

C)

 A: Transpiration B: Photosynthesis C: Conduction D: Transpiration

D)

 A: Transpiration B: Conduction C: Photosynthesis D: Motor action

• question_answer168) Which of the following tissues is not a component of any complex tissue?

A) Parenchyma

B) Collenchyma

C) Sclerenchyma

D) Tracheids

• question_answer169) Mosses and ferns are

A) Thallophytes of plant kingdom

B) Angiosperms of plant kingdom

C) Gymnosperms of plant kingdom

D) Amphibians of plant kingdom

• question_answer170) Plasmodesmata are usually observed between

A) sieve tubes and bast fibres

B) trachea and phloem fibres

C) xylem parenchyma and xylem fibres

D) sieve tubes and companion cells.

• question_answer171) The embryo sac of an angiosperm is made up of

A) 8 cells

B) 7 cells and 8 nuclei

C) 8 nuclei

D) 8 cells and 7 nuclei.

• question_answer172) Cork cambium of dicot stem originates from

A) dedifferentiated parenchyma cells of cortex

B) dedifferentiated collenchyma cells of cortex

C) parenchyma cells of medullary ray

D) parenchyma cells of pericycle.

• question_answer173) Match the Column -1 with Column - II and choose the correct answer from those given below.

 Column - I Column - II [A] Algae (p) Gymnosperms [B] Riccia (q) Pond scum [C] Spirogym (r) Autotrophic [D] Gnetum (s) Liverwort
ln the original paper, the word monocot is misprinted as dicot

A) $A-(r),B-(s),C-(q),D-(p)$

B) $A-(p),B-(s),C-(q),D-(r)$

C) $A-(s),B-(p),C-(r),D-(q)$

D) $A-(r),B-(q),C-(s),D-(p)$

• question_answer174) The opening and closing of stomata is controlled by the activity of

A) guard cells

B) epidermal cells

C) mesophyll cells

D) lenticels.

• question_answer175) In which of the following phyla the adult shows radial symmetry, while the larva shows bilateral symmetry?

A) Annelids

B) Arthropods

C) Molluscs

D) Echinodermata

• question_answer176) A thin film of water covering the soil particles and held strongly by attractive forces is called

A) run away

B) hygroscopic

C) gravitational

D) capillary.

• question_answer177) Which one of the following groups of 3 animals each is correctly matched with their one characteristic morphological features?

A)

 Animals Morphological features Centipede, Prawn, Sea urchin - Jointed appendages

B)

 Animals Morphological features Cockroach, Locust Taenia Metameric segmentation

C)

 Animals Morphological features Scorpion, Spider Cockroach Ventral solid nerve cord

D)

 Animals Morphological features Liver fluke, Sea anemone. Sea cucumber Bilateral symmetry

• question_answer178) Consider the following statements and select the correct option.

 Statement A: Pure water has maximum water Potential Statement B: The osmotic potential is zero in pure water.

A) Both statements are correct and B is not the reason for A.

B) Both statements are incorrect.

C) Both statements are correct and B is the reason for A.

D) Both statements are correct.

• question_answer179) A bivalent of meiosis I consists of

A) four chromatids and two centromeres

B) two chromatids and one centromere

C) two chromatids and two centromeres

D) four chromatids and four centromeres.

• question_answer180) Electrons from excited chlorophyll molecules photosystem II are .accepted first by

A) ferredoxin

B) pheophytin

C) cytochrome b

D) cytochrome f.