Solved papers for CET Karnataka Medical CET - Karnataka Medical Solved Paper-2002

CET - Karnataka Medical Solved Paper-2002 Total Questions - 180

1) A ray of light travels from an optically denser to a rarer medium. The critical angle for the two media is C. The maximum possible deviation of the ray will be:

A)

2C

B)

\[\frac{\pi }{2}-C\]

C)

\[\pi \]-C

D)

\[\pi -2C\]

View Answer
2) When one of the slits of Youngs experiment is covered with a transparent sheet of thickness 4.8 mm, the central shifts to a position originally occupies by the 30th bright fringe. What should be the thickness of the sheet if the central fringe has to shift to the position occupied by 20th bright fringe?

A)

1.6 mm

B)

3.8 mm

C)

3.2 mm

D)

7.6 mm

View Answer
3) Light passes successively through two polarimeter tubes each of length 0.29 m. The first tube contains dextro rotatory solution of concentration \[60kg{{m}^{-3}}\]and specific rotation \[0.01\text{ }rad\text{ }{{m}^{2}}k{{g}^{-1}}.\] The second tube contains laevorotatory solution of concentration \[30\text{ }kg\text{ }{{m}^{-5}}\] and specific rotation \[0.02\text{ }rad\text{ }{{m}^{2}}k{{g}^{-1}}.\] The net rotation produced is:

A)

\[0{}^\circ \]

B)

\[15{}^\circ \]

C)

\[10{}^\circ \]

D)

\[20{}^\circ \]

View Answer
4) \[{{\upsilon }_{O}}\]and \[{{\upsilon }_{E}}\] represent the velocities, \[\mu O\,and\,\mu E\]the refractive indices of ordinary and extraordinary rays for a double refracting crystal. Then:

A)

\[\upsilon O\le {{v}_{E}},{{\mu }_{O}}\le {{\mu }_{E}},\]if the crystal is quartz

B)

\[{{\upsilon }_{O}}\ge {{\upsilon }_{E}},{{\mu }_{O}}\le {{\mu }_{E}},\]if the crystal is calcite

C)

\[{{\upsilon }_{0}}\ge {{v}_{E}},{{\mu }_{0}}\ge {{\mu }_{E}},\]if the crystal is quartz

D)

\[{{\upsilon }_{0}}\le {{v}_{E}},{{\mu }_{0}}\ge {{\mu }_{E}},\]if the crystal is calcite

View Answer
5) A racing car moving towards a cliff, sounds its horn. The driver observes that the sound reflected from the cliff has a pitch one octave higher than the actual sound of the horn. If v is the velocity of sound, then the velocity of the car is:

A)

\[\upsilon /2\]

B)

\[\upsilon /\sqrt{2}\]

C)

\[\upsilon /4\]

D)

\[\upsilon /3\]

View Answer
6) The de-Broglie wavelength of an electron in the first Bohr orbit is:

A)

equal to half the circumference of the first orbit

B)

equal to one fourth the circumference of the first orbit

C)

equal to the circumference of the first orbit

D)

equal to twice the circumference of the first orbit

View Answer
7) Out of the following statements which is not true?

A)

Infrared radiations arise due to minor electron transitions in atoms.

B)

Infrared radiations are used for long distance photography.

C)

Sun is the natural source of infrared radiation.

D)

Infrared radiations are detected by using a bolometer.

View Answer
8) In nuclear fission the percentage of mass converted into energy is about:

A)

0.01%

B)

10%

C)

1%

D)

0.1%

View Answer
9) If \[{{l}_{1}},{{l}_{2}},{{l}_{3}}\] are the lengths of the emitter, base and collector of a transistor, then:

A)

\[{{l}_{3}}<{{l}_{2}}<{{l}_{1}}\]

B)

\[{{l}_{1}}={{l}_{2}}={{l}_{3}}\]

C)

\[{{l}_{3}}<{{l}_{1}}<{{l}_{2}}\]

D)

\[{{l}_{3}}<{{l}_{1}}<{{l}_{2}}\]

View Answer
10) When the conductivity of a semiconductor is only due to breaking of covalent bonds, the semiconductor is called:

A)

intrinsic

B)

extrinsic

C)

p - type

D)

n - type

View Answer
11) A very large number of balls are thrown vertically upwards in quick successions in such a way that the next ball is thrown when the previous one is at the maximum height. If the maximum height is 5 m, the number of balls thrown per minute is: (take\[g=10\text{ }m/{{s}^{2}}\])

A)

80

B)

120

C)

40

D)

60

View Answer
12) The light reflected by a plane mirror may form a real image:

A)

if the rays incident on the mirror are converging

B)

if the rays incident on the mirror are diverging

C)

under no circumstances

D)

if the object is placed very close to the mirror

View Answer
13) A convex is made up of three different materials as shown in the figure. For a point object places on its axis, the number of images formed are:

A)

5

B)

1

C)

3

D)

4

View Answer
14) Light appears to travel in straight lines because:

A)

light consists of very small particles

B)

the frequency of light is very small

C)

the velocity of light is different for different colours

D)

the wavelength of light is very small

View Answer
15) In Youngs double slit experiment, the central bright fringe can be identified:

A)

as it a narrower than other bright fringes

B)

by using white light instead of monochromatic light

C)

as it has a greater intensity than other bright fringes

D)

as it is wider than other bright fringes.

View Answer
16) A railway engine whistling at a constant frequency moves with a constant speed. It goes past a stationary observer beside the railway track. Which of the following graphs best represent the variation of frequency of the sound n heard by the observer with the time t?

A)

B)

C)

D)

View Answer
17) The tension of a stretched string is increased by 69%. In order to keep its frequency of vibration constant, its length must be increased by:

A)

30%

B)

20%

C)

69%

D)

\[\sqrt{69}%\]

View Answer
18) Under the same conditions of temperature and pressure, the velocity of sound in oxygen and hydrogen are \[{{\upsilon }_{O}}\]and \[{{\upsilon }_{H}}.\]Then:

A)

\[{{v}_{O}}=4\upsilon H\]

B)

\[{{\upsilon }_{H}}=4{{\upsilon }_{O}}\]

C)

\[{{\upsilon }_{O}}={{\upsilon }_{H}}\]

D)

\[{{\upsilon }_{H}}=16{{v}_{O}}\]

View Answer
19) 64 small drops of mercury, each of radius r and charge q coalesce to form a big drop. The ratio of the surface density of charge of each small drop with of the big drop is:

A)

64 : 1

B)

1 : 64

C)

1 : 4

D)

4 : 1

View Answer
20) Two capacitors of capacitances 3 \[\mu F\]and 6 \[\mu F\]are charged to a potential of 12 V each. They are now connected to each other, with the positive plate to each joined to the negative plate to the other. The potential difference across each will be:

A)

4 V

B)

6 V

C)

zero

D)

3 V

View Answer
21) The resultant of two forces, one double the other in magnitude, is perpendicular to the smaller of the two forces. The angle between the two forces is:

A)

\[120{}^\circ \]

B)

\[60{}^\circ \]

C)

\[90{}^\circ \]

D)

\[150{}^\circ \]

View Answer
22) The load versus elongation graph for four wires of the same materials is shown in the figure. The thinnest Wire is elongation represented by the line:

A)

OC

B)

OD

C)

OA

D)

OB

View Answer
23) One kilogram of ice at 0°C is mixed with one kilogram of water at 80°C. The final temperature of the mixture is (take: specific heat of water \[=4200\text{ }J\text{ }k{{g}^{-1}}{{K}^{-1}},\] latent heat of ice\[=336\text{ }kJ\text{ }k{{g}^{-1}}\]).

A)

\[40{}^\circ C\]

B)

\[60{}^\circ C\]

C)

\[0{}^\circ C\]

D)

\[50{}^\circ C\]

View Answer
24) A Carnots engine is made to work between \[200{}^\circ C\] and \[0{}^\circ C\] first and then between \[0{}^\circ C\] and \[-200{}^\circ C\]. The ratio of efficiencies of the engine in the two cases is:

A)

1 : 173

B)

1.73 : 1

C)

1 : 2

D)

1 : 1

View Answer
25) An object is placed 12 cm to the left of a converging lens of focal length 8 cm. Another converging lens of 6 cm focal length is placed at a distance of 30 cm. to the right of the first lens. The second lens will produce:

A)

a virtual enlarged image

B)

no image

C)

a real inverted image

D)

a real enlarged image

View Answer
26) The resistance of an incandescent lamp is:

A)

smaller when switched on

B)

greater when switched off

C)

the same whether it is switch off or switch on

D)

greater when switched on

View Answer
27) A superconductor exhibits perfect:

A)

ferromagnetism

B)

ferrimagnetism

C)

diamagnetism

D)

paramagnetism

View Answer
28) A magnet is dropped down an infinitely long vertical copper tube. Then:

A)

the magnet moves with continuously decreasing velocity and ultimately comes to rest

B)

the magnet moves with continuously increasing velocity and ultimately acquires a constant terminal Velocity

C)

the magnet moves with continuously increasing velocity and acceleration

D)

the magnet moves with continuously increasing velocity but constant acceleration.

View Answer
29) Whenever a hydrogen atom emits a photon in the Balmer series, it:

A)

may emit another photon in the Paschen series

B)

need not emit any more photon

C)

may emit another photon in the Balmer series

D)

must emit another photon in the Lyman series.

View Answer
30) The SI unit of radioactivity is:

A)

Rutherford

B)

Roentgen

C)

Becqueral

D)

Curie

View Answer
31) An ammeter and a voltmeter are joined in series to a cell. Their readings are A and V respectively. If a resistance is now joined in parallel with the voltmeter, then:

A)

A will decrease, V will increase

B)

A will increase, V will decrease

C)

both A and V will increase

D)

both A and V will increase

View Answer
32) If each of the resistance of the network shown in figure is R, the equivalent resistance between A and B is:

A)

3 R

B)

5 R

C)

R/2

D)

R

View Answer
33) A cell supplies a current of 0.9 A through a 20. resistor and a current of 0.3 A through a 70. resistor. The internal resistance of the cell is:

A)

1.2\[\Omega \]

B)

2.0\[\Omega \]

C)

0.5\[\Omega \]

D)

1.0\[\Omega \]

View Answer
34) A wire carrying current i is shaped as shown. Section AB is a quarter circle of radius r. The magnetic field is directed:

A)

perpendicular to the plane of the paper and directed into the paper

B)

at an angle \[\pi \]/4 to the plane of the paper

C)

along the bisector of the angle ACB away from AB

D)

along the bisector of ACB towards AB.

View Answer
35) The wire loop formed by joining two semicircular sections of radii R1 and R2 and centre C, carries a current I as shown. The magnetic field at C has a magnitude:

A)

\[\frac{{{\mu }_{0}}I}{2}\left( \frac{1}{{{R}_{1}}}-\frac{1}{{{R}_{2}}} \right)\]

B)

\[\frac{{{\mu }_{0}}I}{4}\left( \frac{1}{{{R}_{1}}}-\frac{1}{{{R}_{2}}} \right)\]

C)

\[\frac{{{\mu }_{0}}I}{2}\left( \frac{1}{{{R}_{1}}}+\frac{1}{{{R}_{2}}} \right)\]

D)

\[\frac{{{\mu }_{0}}I}{4}\left( \frac{1}{{{R}_{1}}}+\frac{1}{{{R}_{2}}} \right)\]

View Answer
36) To increase both the resolving power and magnifying power of a telescope:

A)

the focal length of the objective has to be increased

B)

both the focal length and aperture of the objective has to be increased

C)

the wavelength of light has to be decreased

D)

the aperture of the objective has to be increased

View Answer
37) Forty one tuning forks are arranged in increasing order of frequencies such that every fork gives 5 beats with the next. The last fork has a frequency that is double the frequency of the first fork is:

A)

210

B)

400

C)

205

D)

200

View Answer
38) In a stationary wave all the particles:

A)

in the region between two nodes vibrate in same phase

B)

on either side of a node vibrate in same phase

C)

of the medium vibrate in same phase

D)

in the region between two antinodes vibrate in same phase.

View Answer
39) A cylindrical tube, open at both ends, has a fundamental frequency \[{{f}_{0}}\]in air. The tube is dipped vertically into water such that half of its length is inside water. The fundamental frequency of the air column now is:

A)

\[{{f}_{0}}\]

B)

\[3{{f}_{0}}/4\]

C)

\[2{{f}_{0}}\]

D)

\[{{f}_{0}}/2\]

View Answer
40) A man x can hear upto 10 kHz and another man y upto 2 kHz. A note of frequency 500 Hz is produced before them from a stretched string then both will hear sounds of:

A)

different pitch but same quality

B)

same pitch but different quality

C)

same pitch and same quality

D)

different pitch and different quality.

View Answer
41) When 100 V D.C. is applied across a coil, a current of 1 A flows through it. When 100 V A.C. of 50 Hz is applied to the same coil only 0-5 A flows. The inductance of the coil is:

A)

5.5 mH

B)

0.55 mH

C)

55 mH

D)

0.55 H

View Answer
42) In the circuit shown in the figure, the A.C. source gives a voltage V = 20 cos (2000 t). Neglecting source resistance, the voltmeter and ammeter reading will be:

A)

1.68 V, 0.47 A

B)

0 V, 0.47 A

C)

5.6 V, 1.4 A

D)

0V, 1.4 A

View Answer
43) In the Bohr model of the hydrogen atom, let R, V and E represent the radius of the orbit, the speed of electron and the total energy of the electron respectively. Which of the following quantity is proportional to the quantum number n?

A)

E / V

B)

R / E

C)

V R

D)

R E

View Answer
44) In a sample of radioactive material, what percentage of the initial number of active nuclei will decay during one mean life?

A)

63 %

B)

69.3 %

C)

37 %

D)

50 %

View Answer
45) A caesium photocell, with a steady potential difference of 60V across it, is illuminated by a bright point source of light 50 cm away. When the same light is places 1 cm. away, the photoelectrons emitted from the cell:

A)

are half as numerous

B)

are one quarter as numerous

C)

each carry one quarter of their previous energy

D)

each carry one quarter of their previous momentum.

View Answer
46) The equation y = A cos2 \[\left[ 2\pi nt-2\pi \frac{x}{y} \right]\]represents a wave with:

A)

amplitude A/2, frequency 2n and wavelength \[\lambda \]

B)

amplitude A/2, frequency In and wavelength \[\lambda /2\]

C)

amplitude A, frequency n and wavelength \[\lambda \]

D)

amplitude A, frequency 2n and wavelength 2\[\lambda \]

View Answer
47) A light points fixed to one prong of a tuning fork touches a vertical plate. The fork is set vibrating and the plate is allowed to fall freely. If eight oscillations are counted when the plate falls through 10 cm, the frequency of the tuning fork is:

A)

280 Hz

B)

360 Hz

C)

56 Hz

D)

560 Hz

View Answer
48) Three point charges are placed at the comers of an equilateral triangle. Assuming only electrostatic forces are acting. Then the system:

A)

will be in equilibrium if the charges rotate about the centre of the triangle

B)

can never be in equilibrium

C)

will be in equilibrium if the charges have the same magnitudes but different signs

D)

will be in equilibrium if the charges have different magnitude and different signs.

View Answer
49) Two copper balls, each weighing 10 g are kept in air 10cm apart. If one electron from every 10 atoms is transferred from one ball to the other, the coulomb force between them is: (atomic weight of copper is 63-5)

A)

\[2.0\times {{10}^{4}}N\]

B)

\[2.0\times {{10}^{10}}N\]

C)

\[2.0\text{ }{{10}^{6}}N\]

D)

\[2.0\times {{10}^{8}}N\]

View Answer
50) What fraction of the energy drawn from the charging battery is stored in a capacitor?

A)

75%

B)

100%

C)

25%

D)

50%

View Answer
51) A projectile is moving at \[20\text{ }m{{s}^{-1}}\]at its highest point, where it breaks into equal parts due to an internal explosion. One part moves vertically up at \[30\text{ }m{{s}^{-1}}\]with respect to the ground. Then the other part will move at:

A)

\[20\text{ }m{{s}^{-1}}\]

B)

10 \[\sqrt{31}m{{s}^{-1}}\]

C)

\[50\text{ }m{{s}^{-1}}\]

D)

\[30\text{ }m{{s}^{-1}}\]

View Answer
52) A body is projected vertically upwards from the surface of a planet of radius R with a velocity equal to half the escape velocity for that planet. The maximum height attained by the body is:

A)

R/2

B)

R/3

C)

R/5

D)

R/4

View Answer
53) From the top of a tower a stone is thrown up which reaches the ground in a time \[{{t}_{1}}.\]A second stone thrown down with the same speed reaches the ground in a time \[{{t}_{2}}.\]A third stone released from rest from the same between reaches the ground in a time t3 Then:

A)

\[\frac{1}{{{t}_{3}}}=\frac{1}{{{t}_{2}}}-\frac{1}{{{t}_{1}}}\]

B)

\[{{t}_{3}}^{2}={{t}_{1}}^{2}-{{t}_{2}}^{2}\]

C)

\[{{t}_{3}}=\frac{{{t}_{1}}+{{t}_{2}}}{2}\]

D)

\[{{t}_{3}}=\sqrt{{{t}_{1}}{{t}_{2}}}\]

View Answer
54) Five rods of same dimensions are arranged as shown in the figure. They have thermal conductivities \[{{k}_{1}},\text{ }{{k}_{2}},\text{ }{{k}_{3}},\text{ }{{k}_{4}}\]and \[{{k}_{5}}\]when points A and B are maintained at different temperatures. No heat flows through the central rod if:

A)

\[{{k}_{1}}{{k}_{4}}={{k}_{2}}{{k}_{3}}\]

B)

\[{{k}_{1}}={{k}_{4}}\,and\,{{k}_{2}}={{k}_{3}}\]

C)

\[\frac{{{k}_{1}}}{{{k}_{4}}}=\frac{{{k}_{2}}}{{{k}_{3}}}\]

D)

\[{{k}_{1}}{{k}_{2}}={{k}_{3}}{{k}_{4}}\]

View Answer
55) The energy spectrum of a black body exhibits a maximum around a wavelength\[{{\lambda }_{0}}\]. The temperature of the black body is now changed such that the energy is maximum around a wavelength 3\[{{\lambda }_{0}}\]/4. The power radiated by the black body will now increase by a factor of:

A)

64/27

B)

256/81

C)

4/3

D)

16/9

View Answer
56) n identical bulbs, each designated to draw a power P from a certain voltage supply. The total power which they will draw is:

A)

P/n

B)

P/n2

C)

np

D)

P

View Answer
57) A and B are two conductors carrying a current I in the same direction, x and y are two electron beams moving in the same direction. Then there will be:

A)

attraction between A and B, repulsion between x and y

B)

repulsion between A and B, attraction between x and y

C)

attraction between A and B and x and y

D)

repulsion between A and B and x and y

View Answer
58) The current-voltage graph for a given metallic conductor at two different temperature \[{{T}_{1}}\]and \[{{T}_{2}}\]are as shown in the figure. Then:

A)

\[{{T}_{1}}<{{T}_{2}}\]

B)

nothing can be said about\[{{T}_{1}}\] and \[{{T}_{2}}\]

C)

\[{{T}_{1}}={{T}_{2}}\]

D)

\[{{T}_{1}}>{{T}_{2}}\]

View Answer
59) The variation of the intensity of magnetisation (I) with respect to the magnetising field (H) in a diamagnetic substance is described by the graph:

A)

OC

B)

OD

C)

OA

D)

OB

View Answer
60) An aluminium ring B faces an electromagnet A. The current J through A can be altered. Then which of the following statements is correct?

A)

If I decreases, A will repel B

B)

Whether I increases or decreases, B will not experience any force

C)

If I increases, A will repel B

D)

If I increases, A will attract B

View Answer
61) Glacial acetic acid is obtained by:

A)

chemically separating acetic acid

B)

treating vinegar with dehydrating agents

C)

crystallising, separating and melting acetic acid

D)

distilling vinegar.

View Answer
62) An organic acid without a carboxylic acid group is:

A)

picric acid

B)

oxalic acid

C)

vinegar

D)

ascorbic acid

View Answer
63) An ester used as medicine is:

A)

ethyl benzoate

B)

methyl salicylate

C)

methyl acetate

D)

ethyl acetate

View Answer
64) Reaction of aniline with benzaldehyde is:

A)

polymerisation

B)

condensation

C)

addition

D)

substitution

View Answer
65) Halo alkane in the presence of alcoholic \[KOH\] undergoes:

A)

elimination

B)

polymerisation

C)

dimerisation

D)

substitution

View Answer
66) The simplest way to check whether a system is colloidal is by:

A)

electrodialysis

B)

finding out particle size

C)

Tyndall effect

D)

Brownian movement.

View Answer
67) An example for a strong electrolyte is :

A)

urea

B)

ammonium hydroxide

C)

sugar

D)

sodium acetate

View Answer
68) An example of a salt that will not hydrolyse is:

A)

\[C{{H}_{3}}COON{{H}_{4}}\]

B)

\[C{{H}_{3}}COOK\]

C)

\[N{{H}_{4}}Cl\]

D)

\[KCl\]

View Answer
69) \[{{C}^{14}}\] is:

A)

a natural non-radioactive isotope

B)

an artificial non-radioactive isotope

C)

an artificial radioactive isotope

D)

a natural radioactive isotope.

View Answer
70) A cuprous ore among the following is:

A)

cuprite

B)

malachite

C)

chalcopyrites

D)

azurite

View Answer
71) van der Waals equation for n moles of a gas is:

A)

\[\left( P+\frac{{{n}^{2}}a}{{{V}^{2}}} \right)(V-nb)=RT\]

B)

\[\left( P+\frac{na}{{{V}^{2}}} \right)(V-nb)=RT\]

C)

\[\left( P+\frac{a}{{{V}^{2}}} \right)(V-nb)=nRT\]

D)

\[\left( P+\frac{{{n}^{2}}a}{{{V}^{2}}} \right)(V-b)=RT\]

View Answer
72) Smallest among these species is:

A)

lithium

B)

lithium ion

C)

hydrogen

D)

helium

View Answer
73) Sodium chloride is an ionic compound where as hydrpgen chloride gas is mainly convalent because:

A)

electronegativity difference in the case of hydrogen is less than \[2.1\].

B)

hydrogen chloride is a gas

C)

hydrogen is a non-metal

D)

sodium is reactive.

View Answer
74) Covalent compounds have low melting -point because:

A)

covalent molecules are held by weak van der Waals force of attraction

B)

covalent bond is less exothermic

C)

covalent bond is weaker than ionic bond

D)

covalent molecules have definite shape.

View Answer
75) A neutral fertilizer among these compounds is:

A)

ammonium nitrate

B)

urea

C)

CAN

D)

ammonium sulphate

View Answer
76) A condensation polymer among the following polymers is:

A)

teflon

B)

polysterene

C)

PVC

D)

decron

View Answer
77) A compound that undergoes bromination easily is:

A)

toluene

B)

benzoic acid

C)

phenol

D)

benzene

View Answer
78) A sugar that is not a disacharide among the following is:

A)

galactose

B)

lactose

C)

maltose

D)

sucrose

View Answer
79) Drying soil invariably contains :

A)

butyric acid

B)

stearic acid

C)

lauric acid

D)

linoleic acid

View Answer
80) Hetrocyclic amino acid among these compound is:

A)

lysine

B)

tyrosine

C)

proline

D)

serine

View Answer
81) Aluminium oxide is not reduced by chemical reactions since:

A)

reducing agent contaminate

B)

the process pollute the environment

C)

Aluminium oxide is highly stable

D)

Aluminium oxide is reactive.

View Answer
82) Iron loses magnetic property at:

A)

melting point

B)

1000 K

C)

Curie point

D)

boiling point

View Answer
83) An example for a double salt is:

A)

potassium ferricyanide

B)

cobalt hexamine chloride

C)

cuprous sulphate

D)

Mohrs salt.

View Answer
84) The set of compounds in which the reactivity of halogen atom in the ascending order is:

A)

vinyl chloride, chloroethane, chlorobenzene

B)

vinyl chloride, chlorobenzene, chloroethane

C)

chloroethane, chlorobenzene, vinyl chloride

D)

chlorobenzene, vinyl chloride, chloroethane.

View Answer
85) Methanal is:

A)

\[C{{H}_{3}}CHO\]

B)

\[C{{H}_{3}}COC{{H}_{3}}\]

C)

\[C{{H}_{2}}OH\]

D)

\[HCHO\]

View Answer
86) In the case of auto catalysis:

A)

product catalysis

B)

solvent catalysis

C)

reactant catalysis

D)

heat produced in the reaction catalysis.

View Answer
87) Which of the following statements is true?

A)

\[\Delta E\] is always greater than \[\Delta H\]

B)

\[\Delta E\] is always less than \[\Delta H\]

C)

\[\Delta E\] may be lesser or greater or equal to \[\Delta H\]

D)

\[\Delta E\] is always proportional to \[\Delta H\].

View Answer
88) Order of reaction is decided by :

A)

molecularity

B)

pressure

C)

temperature

D)

mechanism of reaction as well as relative concentration of reactants

View Answer
89) Half-life of a reaction is found to be inversely proportional to the cube of initial concentration. The order of reaction is:

A)

\[5\]

B)

\[2\]

C)

\[4\]

D)

\[3\]

View Answer
90) Which among the following statement is false?

A)

The adsorption may be monolayered or multilayered.

B)

Particle size of adsorbent will not affect the amount of adsorption.

C)

Increase of pressure increases amount of adsorption.

D)

Increase of temperature may decrease the amount of adsorption.

View Answer
91) Purine derivative among the following bases is:

A)

cytosine

B)

guanine

C)

uracil

D)

thymine.

View Answer
92) A drug that is antipyretic as well as analgesic is:

A)

penicillin

B)

chloroquin

C)

para acetamidophenol

D)

chloropromazine hydrochloride

View Answer
93) For a /-orbital the values of m are:

A)

\[-1,\,0,\,+1\]

B)

\[0,+1,+2,+3\]

C)

\[-2,-1,0,+1,+2\]

D)

\[-3,-2,-1,0,+1,+2,+3\]

View Answer
94) Chloride ion and potassium ion are isoelectronic. Then:

A)

potassium ion is relatively bigger

B)

depends on the other cation and anion

C)

their size are same

D)

chloride ion is bigger than potassium ion.

View Answer
95) In a reversible reaction a catalyst will affect:

A)

the rate of forward reaction and reverse reaction

B)

neither the forward reaction nor the rate of reverse reaction

C)

the rate of forward reaction

D)

the rate of reverse reaction.

View Answer
96) Pentavalence in phosphorous is more stable when compared to that of nitrogen even through they belong to same group is due to:

A)

reactivity of phosphorous

B)

inert nature of nitrogen

C)

dissimilar electronic configuration

D)

larger size of phosphorous atom.

View Answer
97) Aqueous solutions of hydrogen sulphide and sulphurdioxide when mixed together, yield:

A)

sulphur trioxide and water

B)

hydrogen and sulphurous acid

C)

sulphur and water

D)

hydrogen peroxide and sulphur.

View Answer
98) A salt producing hydrocarbon among these compounds is:

A)

ethane

B)

methane

C)

ethene

D)

ethyne.

View Answer
99) Octane number is zero for:

A)

n-octane

B)

iso- ocatne

C)

n-heptane

D)

iso-heptane

View Answer
100) The intensive property among these quantities is:

A)

enthalpy

B)

mass/volume

C)

mass

D)

volume

View Answer
101) 30g of Mg and 30g of oxygen are reacted and the residual mixture contains:

A)

\[45g\]of \[MgO\]and \[15g\]of \[{{O}_{2}}\]

B)

\[50g\]of \[MgO\] and \[10g\]of \[{{O}_{2}}\]

C)

\[60g\] of \[MgO\] only

D)

\[40g\] of \[MgO\] and \[20g\] of \[{{O}_{2}}\].

View Answer
102) \[3g\]of oxide of a metal is converted to chloride completely and it yielded 5 g of chloride. The equivalent weight of metal is:

A)

\[12\]

B)

\[20\]

C)

\[33.25\]

D)

\[2.325\]

View Answer
103) \[20ml\]of \[0.25\text{ }N\]strong acid and \[30ml\text{ }0.2\text{ }N\]of strong base are mixed; the resulting solution is:

A)

\[0.02N\]acidic

B)

\[0.025\]N basic

C)

\[0.02\text{ }N\]basic

D)

\[0.025\text{ }N\]acidic

View Answer
104) The rate of forward reaction is two times that of reverse reaction at a given temperature and identical concentration. \[{{K}_{equilibrium}}\]is:

A)

\[2.5\]

B)

\[2.0\]

C)

\[0.5\]

D)

\[1.5\]

View Answer
105) A chemical reaction was carried out at 300 K and 280 K. The rate constants were found to be \[{{K}_{1}}\] and \[{{K}_{2}}\]respectively. Then:

A)

\[{{K}_{2}}=0.25{{K}_{1}}\]

B)

\[{{K}_{2}}=0.5{{K}_{1}}\]

C)

\[{{K}_{2}}=4{{K}_{1}}\]

D)

\[{{K}_{2}}=2{{K}_{1}}\]

View Answer
106) Ammonium ion is:

A)

neither an acid nor base

B)

both an acid and a base

C)

a conjugate acid

D)

a conjugate base

View Answer
107) Water is a:

A)

amphoteric acid

B)

aprotic solvent

C)

protophobic solvent

D)

photophilic solvent

View Answer
108) A smuggler could not carry gold by depositing iron on gold surface since:

A)

gold has higher standard reduction potential than iron

B)

gold has lower standard reduction potential than iron

C)

gold is denser

D)

iron rusts.

View Answer
109) A is an aqueous acid; B is an aqueous base. They are diluted separately, then:

A)

pH of A decreases and pH of B increases

B)

pH of A increases and pH of B decreases till pH in each case is 7

C)

pH of A and B increase

D)

pH of B and A decrease.

View Answer
110) \[_{Z}{{X}^{M}}{{+}_{2}}H{{e}^{4}}{{\to }_{15}}{{P}^{30}}+o{{n}^{1}},\]Then:

A)

\[Z=12,\text{ }M=27\]

B)

\[Z=13,\text{ }M=27\]

C)

\[Z=12,M=17\]

D)

\[Z=13,M=28\]

View Answer
111) Kinetic theory of gases presumes that collision between the molecules to be perfectly elastic because:

A)

collisions will not split the molecule

B)

the molecules are tiny

C)

the molecules are rigid

D)

the temperature remains constant irrespective of collisions.

View Answer
112) Bio-gas production is more useful when compared to the direct use of dung because:

A)

both fuel value and fertilizer value are effectively utilized

B)

production of bio-gas involves less lab our

C)

fuel is quickly produced

D)

the fertilizer produced is a fluid.

View Answer
113) Compounds with high heat of formation are less stable because:

A)

high temperature is required to synthesise them

B)

molecules of such compounds are distorted

C)

it is difficult to synthesise them

D)

energy rich state leads to instability.

View Answer
114) In the case of a radio isotope the value of \[{{T}_{1/2}}\] and \[\lambda \] are identical in magnitude. The value is:

A)

\[0.693\]

B)

\[{{(0.693)}^{1/2}}\]

C)

\[1/0.693\]

D)

\[{{(0.693)}^{2}}\]

View Answer
115) Heat of neutralisation of weak acid and strong base is less than the heat of neutralisation of strong acid and strong base due to:

A)

energy has to be spent for the total dissociation of weak acid

B)

salt of weak acid and strong base is not stable

C)

incomplete dissociation of weak acid

D)

incomplete neutralisation of weak acid.

View Answer
116) A radio isotope will not emit :

A)

gamma and alpha rays simultaneously

B)

gamma rays only

C)

alpha and beta rays simultaneously

D)

beta and gamma rays simultaneously.

View Answer
117) Heat treatment alters the properties of steel due to:

A)

chemical reaction on heating

B)

partial rusting

C)

change in the residual energy

D)

change in the lattice structure due to differential rate of cooling.

View Answer
118) Chemical bond implies:

A)

attraction and repulsion

B)

attraction and repulsion balanced at a particular distance

C)

attraction

D)

repulsion.

View Answer
119) Grignard reagent is not prepared in aqueous medium but prepared in either medium. Because:

A)

the reagent reacts with water

B)

the reagent becomes inactive in water

C)

it is insoluble in water

D)

the reagent is highly reactive in water.

View Answer
120) A lone pair of electrons in an atom implies:

A)

a pair of valence electrons not involved in bonding

B)

a pair of electrons involved in bonding

C)

a pair of electrons

D)

a pair of valence electrons

View Answer
121) Which of the following is a part of our brain?

A)

Corpora allata

B)

Corpora adiposa

C)

Corpora bigemina

D)

Corpora quadrigemina

View Answer
122) One growth ring of plants consists of:

A)

only autumn wood

B)

spring wood and early wood

C)

only spring wood

D)

spring wood and autumn wood

View Answer
123) Which of the following gases contributes to global warming?

A)

Carbon dioxide

B)

Nitrogen dioxide

C)

Carbon monoxide

D)

Sulphur dioxide

View Answer
124) Which of the odd type of vegetable in a basket containing the following?

A)

Beet roots

B)

Potatoes

C)

Carrots

D)

Radishes

View Answer
125) Vessels are the major water conducting cells in:

A)

dicots only

B)

pteridophytes and gymnosprems

C)

angiosperms

D)

monocots only

View Answer
126) Turtles are:

A)

pisces

B)

reptiles

C)

molluscans

D)

arthropods

View Answer
127) Haploid plants can be produced by:

A)

pollen culture

B)

cotyledon culture

C)

embryo culture

D)

meristem culture

View Answer
128) Movement of \[C{{O}_{2}}\] and \[{{O}_{2}}\] across the alveoli and capillaries takes place by:

A)

imbibitions

B)

carrier transport

C)

diffusion

D)

active transport

View Answer
129) A monohybrid cross between two plants, one having 24 cm. long internodes and the other having 12 cm. long internodes, produced F1 hybrids all having 18 cm. long internodes. This is a case of:

A)

recessive dominance

B)

multiple allelism

C)

complete dominance

D)

incomplete dominance

View Answer
130) A bipolar neuron has:

A)

1 dendrite and 1 axon

B)

2 axons and 2 dendrites

C)

2 dendrites and 1 axon

D)

2 axons and 1 dendrite

View Answer
131) The nature of a fruit developing from a flower depends on the type of:

A)

gynoecium

B)

pollination

C)

fertilization

D)

androecium

View Answer
132) Some blue-green algae can be used as biofertilizer because:

A)

they are photosynthetic

B)

they have mucilage

C)

they grow everywhere

D)

they can fix nitrogen

View Answer
133) The process which cannot takes place in the absence of virus is:

A)

translocation

B)

transduction

C)

transformation

D)

conjugation

View Answer
134) One molecule of an enzyme is needed to convert 2 molecules of a substrate into products in 5 minutes. 10 molecules of the enzyme and 25 molecules of the substrate are mixed in a test tube. After 10 minutes the test tube will be having:

A)

products and enzyme

B)

products, enzyme and 5 molecules of unreacted substrate

C)

products and 5 molecules of unreacted substrate

D)

products only

View Answer
135) In angiosperms, triple fusion results in the formation of:

A)

secondary nucleus

B)

polar nucleus

C)

primary endosperm nucleus

D)

zygotic nucleus

View Answer
136) If the chyme of a person who had orally consumed only starch as food is analysed before it enters the duodenum, it will show the presence of:

A)

starch, dextrin and maltose

B)

starch, dextrin and glucose

C)

dextrin and maltose

D)

dextrin and glucose

View Answer
137) The total number of canines in the permanent dental set of humans is:

A)

8

B)

12

C)

6

D)

4

View Answer
138) What should be the blood types of parents in the children having only A and B types of blood?

A)

A and 0

B)

AB and A

C)

AB and 0

D)

A and B

View Answer
139) The number of nephrons in a kidney is equal to:

A)

the number of Bowmans capsules

B)

sum of Bowmans capsules and malpighian capsules

C)

sum of Bowmans capsules and glomeruli

D)

double the number of Bowmans capsules

View Answer
140) Chargaffs rule is applicable to:

A)

single stranded RNA

B)

single stranded DNA and RNA

C)

single stranded DNA

D)

double stranded DNA

View Answer
141) Diabetes insipidus is due to:

A)

hypersecretion of insulin

B)

hyposecretion of vasopressin

C)

hyperesecretion of vasopressin

D)

hyposecretion of insulin

View Answer
142) Choose the diagram which correctly shows the anaphase I stage:

A)

B)

C)

D)

View Answer
143) Choose the schemmatic diagram which properly represents pulmonary circulation in humans.

A)

left auricle \[\xrightarrow[\text{blood}]{\text{oxygenated}}\] lungs\[\xrightarrow[\text{blood}]{\text{deoxygenated}}\] right ventricle

B)

left auricle \[\xrightarrow[\text{blood}]{\text{deoxygenated}}\] lungs \[\xrightarrow[\text{blood}]{\text{oxygenated}}\] right ventricle

C)

right ventricle \[\xrightarrow[\text{blood}]{\text{deoxygenated}}\] lungs\[\xrightarrow[\text{blood}]{\text{oxygenated}}\] left auricle

D)

right ventricle \[\xrightarrow[\text{blood}]{\text{oxygenated}}\] lungs\[\xrightarrow[\text{blood}]{\text{deoxygenated}}\] left auricle

View Answer
144) Water lost by transpiration is:

A)

rich in dissolved minerals

B)

rich in solutes

C)

pure water

D)

rich in dissolved salts

View Answer
145) What will be the direction of net osmotic movement of water if solution A, enclosed in a semipermeable membrane, having an osmotic potential of - 30 bars and turgor pressure of 5 bars is submerged in a solution B with an osmotic potential of -10 bars and 0 turgor pressure?

A)

B to A

B)

equal movement in both directions

C)

A to B

D)

no movement

View Answer
146) Cockroaches are :

A)

ureotelic

B)

ureotelic or ammonotelic

C)

uricotelic

D)

ammonotelic

View Answer
147) A gamete normally contains:

A)

many alleles of a gene

B)

all alleles of a gene

C)

two alleles of a gene

D)

one allele of a gene

View Answer
148) The most abundant granulocytes in human blood is:

A)

neutrophils

B)

monocytes

C)

basophils

D)

eosinophils

View Answer
149) Metastasis is associated with:

A)

crown gall tumour

B)

both malignant and benign tumours

C)

benign tumours

D)

malignant tumours

View Answer
150) The phase of cell cycle during which DNA + polymerase is functionally active is:

A)

S

B)

\[{{G}_{2}}\]

C)

G1

D)

M

View Answer
151) Match the biochemical processes given under Column I with their respective cellular locations given under Column II. From the answer choose the one which gives the correct combination of alphabets:

Column I Column II

A Krebs cycle I Stroma

B Glycolysis J Grana

C Calvin cycle K Mitochondrial matrix

L Cytoplasm

A)

A = L, B = K, C = J

B)

A = K, B = L, C = I

C)

A = K, B = L, C = J

D)

A = L, B = K, C = I

View Answer
152) According to Lamarckism, long necked Giraffes evolved because:

A)

humans preferred only long necked ones

B)

of stretching of necks over many generations by short necked ones

C)

nature selected only long necked ones

D)

short necks suddenly changed into long necks

View Answer
153) An ascomycetes fungus is:

A)

Agaricus

B)

Plenrotes

C)

Phytophthora

D)

Yeast

View Answer
154) In the skeletal form of ornithine cycle given, some intermediate products indicated by albhabets. Choose the answer in which these alphabets are properly matched with the names of corresponding products:

A)

A = arginine, B = succinic acid, C = fumaric acid

B)

A = citrulline, B = arginine, C = succinic acid

C)

A = citrulline, B = fumaric acid, C = arginine

D)

A = citrulline, B = arginine, C = fumaric acid

View Answer
155) Choose correct description of the flower depicted in the floral diagram given below:

A)

united, valvate sepals; free, imbricate petals ; free stamens; unilocular ovary with marginal placenta

B)

united, valvate sepals; free, imbricate petals; epipetalous stamens; unilocular ovary with marginal placenta

C)

united, valvate sepals; free, imbricate petals; free stamens; unilocular ovary with axile placenta

D)

united, valvate sepals; free, twisted petals; free stamens; unilocular ovary with marginal placenta

View Answer
156) Phycology is the study of:

A)

lichens

B)

Ficus

C)

fungi

D)

algae

View Answer
157) R.Q. of sprouting potato tubers will be:

A)

1

B)

< 1

C)

> 1

D)

0

View Answer
158) The pacemaker of the human heart is:

A)

AV node

B)

SV node

C)

SA node

D)

tricuspid valve

View Answer
159) Haversian systems are found in the bones of:

A)

Pigeon

B)

Panther

C)

Pipe fish

D)

Python

View Answer
160) Which type of the following ecological pyramids are never inverted?

A)

Pyramids of dry biomass

B)

Pyramids of energy

C)

Pyramids of biomass

D)

Pyramids of number

View Answer
161) Chlorophyll molecules are green in colour because they:

A)

transmit green light

B)

transform green light

C)

reflect green light

D)

absorb green light

View Answer
162) HIV decreases natural immunity of body by:

A)

attacking T-lymphocytes

B)

attacking B-lymphocytes

C)

destroying antibodies

D)

destroying erythrocytes

View Answer
163) The level of glucose in the blood is controlled by:

A)

liver

B)

ileum

C)

gall bladder

D)

duodenum

View Answer
164) Hardening of arteries due to deposition of cholesterol is called:

A)

rhinitis

B)

stenosis

C)

thrombosis

D)

atherosclerosis

View Answer
165) The probability of the male child of a haemophilic father and normal mother becoming haemophilic is:

A)

0%

B)

25%

C)

100%

D)

50%

View Answer
166) The cohesive force existing between molecules of water is contribution to:

A)

plasmolysis

B)

translocation

C)

ascent of sap

D)

osmosis

View Answer
167) Balbiani rings are the structural features of:

A)

allosomes

B)

autosomes

C)

lampbrush chromosomes

D)

polytene chromosomes

View Answer
168) In ATP, the high energy bond is the one which links:

A)

ribose with phosphate

B)

phosphate to phosphate

C)

adenine with phosphate

D)

adenine with ribose

View Answer
169) An example for in situ biological conservation method is:

A)

biosphere reserves

B)

zoos

C)

botanical gardens

D)

seed banks

View Answer
170) A common feature shared by guard cells and mesophyll cells is:

A)

presence of chloroplasts

B)

dumb - bell shaped structure

C)

differentially thick cell wall

D)

uniformely thin cell wall

View Answer
171) A polysome is formed by:

A)

a cluster of ribosomal subunits

B)

many mRNAs being attached to a ribosome

C)

a cluster of ribosomes

D)

many ribosomes attached to Mrna

View Answer
172) Construction of a recombinant DNA involves:

A)

cleaving and rejoining DNA segments with endonuclease alone

B)

cleaving DNA segments with endonuclease and rejoining them with ligase

C)

cleaving DNA segments with ligase and rejoining them with endonuclease

D)

cleaving and rejoining DNA segements with ligase alone

View Answer
173) In the production of test tube babies:

A)

fertilization and foetus formation is external

B)

fertilization and foetus formation is internal

C)

fertilization is internal and foetus formation is external

D)

fertilization is external and foetus formation is internal

View Answer
174) To promote the growth of lateral branches of a plant:

A)

axillary buds are removed

B)

apical bud is removed

C)

auxin is applied to the apical bud

D)

auxin is applied to the decapitated shoot tip

View Answer
175) Vital capacity of lungs is:

A)

IRV + ERV

B)

IRV + ERV + TV - RV

C)

inspiratory reserve volume (IRE) + expiratory reserve volume (ERV) + tidal volume (TV) + residual volume (RV)

D)

IRV + ERV + TV

View Answer
176) Choose the correct statement about neuro-hypophysis.

A)

it stores the hormones produced by adenohypophysis

B)

it is poorly developed and functionless in humans

C)

it stores and releases hormones secreted by hypothalamus

D)

it secretes its own hormones

View Answer
177) Sprems of an animal species A cannot normally fertilize the ovum of another species B because:

A)

fertilizin of A and B are not compatible

B)

antifertilizin of A and fertilizin of B are not compatible

C)

fertilizin of A and antifertilizin of B are not compatible

D)

antifertilizin of A and B are not compatible

View Answer
178) HCl of the gastric juice:

A)

activates both ptyalin and pepsin

B)

inactivates both ptyalin and pepsin

C)

activates ptyalin and inactivates pepsin

D)

inactivats ptyalin and activates pepsin

View Answer
179) Find the sequence of binding of the following amino acyl - tRNA complexes during translation of a mRNA transcribed by a DNA segment having the base sequence 3 TACATGGGTCCG5. Choose the answer showing the correct order of alphabets:

A)

a, b, d, c

B)

b, a, d, c

C)

a, b, c, d

D)

b, a, c, d

View Answer
180) Choose the correct combination of alphabets which matches the zoological names given under Column I with their common names given under Column II:

Column I Column II

A Labeo rohita E Jungle fowl

B Gallus gallus F Carp

C Bos indicas Q Tussar silkmoth

D Antheraea mylitta H Cattle

A)

A = F, B = G, C = E, D = H

B)

A = G, B = E, C = H, D = F

C)

A = F, B = E, C = H, D = G

D)

A = F, B = E, C = G, D = H

View Answer