Solved papers for CET Karnataka Medical CET - Karnataka Medical Solved Paper-2005

CET - Karnataka Medical Solved Paper-2005 Total Questions - 180

1) If M is the mass of the earth and R its radius, the ratio of the gravitational acceleration and the gravitational constant is:

A)

\[\frac{{{R}^{2}}}{M}\]

B)

\[\frac{M}{{{R}^{2}}}\]

C)

\[M{{R}^{2}}\]

D)

\[\frac{M}{R}\]

View Answer
2) A student unable to answer a question on Newtons laws of motion attempts to pull himself up by tugging on his hair. He will not succeed:

A)

as the force exerted is small

B)

the frictional force while gripping, is small

C)

Newtons law of inertia is not applicable to living beings

D)

as the force applied is internal to the system

View Answer
3) From the adjacent figure, the correct observation is:

A)

the pressure on the bottom of tank A is greater than at the bottom of B

B)

the pressure on the bottom of the tank A is smaller than at the bottom of B

C)

die pressure depends on the shape of the container

D)

the pressure on the bottom of A and B is the same

View Answer
4) Which one of the following is not a unit of youngs modulus?

A)

\[N{{m}^{-1}}\]

B)

\[N{{m}^{-2}}\]

C)

dyne \[c{{m}^{-2}}~~~~~~\]

D)

mega pascal

View Answer
5) A piece of blue glass heated to a high temperature and a piece of red glass at room temperature, are taken inside a dimly lit room, then:

A)

the blue piece will look blue and red will look as usual

B)

red looks brighter red and blue looks ordinary blue

C)

blue shines like brighter red compared to the red piece

D)

both the pieces will look equally red

View Answer
6) Three long, straight parallel wires, carrying current, are arranged as shown ill figure. The force experienced by a 25 cm length of wire C is:

A)

\[{{10}^{-3}}N~~~\]

B)

\[2.5\times {{10}^{-3}}N\]

C)

zero

D)

\[1.5\times {{10}^{-3}}N\]

View Answer
7) A 5.0 amp current is setup in an external circuit by a 6.0 volt storage battery for 6.0 minutes. The chemical energy of the battery is reduced by:

A)

\[1.08\times {{10}^{4}}J\]

B)

\[1.08\times {{10}^{4}}J\]

C)

\[1.8\times {{10}^{4}}J\]

D)

\[1.8\times {{10}^{4}}J\]

View Answer
8) The current in a simple series circuit is 5.0 amp. When an additional resistance of 2.0 ohms is inserted, the current drops to 4.0 amp. The original resistance of the circuit in ohms was:

A)

1.25

B)

8

C)

10

D)

20

View Answer
9) In the circuit given \[E=6.0\]volt, \[{{R}_{1}}=\text{ }100\,\Omega \]\[{{R}_{2}}=\text{ }{{R}_{3}}50\,\Omega \],\[{{R}_{4}}=75\,\Omega \]. The equivalent resistance of the circuit, in ohms, is:

A)

11.875

B)

26.31

C)

118.75

D)

none of these

View Answer
10) Two resistances are connected in two gaps of a metre bridge. The balance point is 20 cm from the zero end. A resistance of 15 ohms is connected in series with the smaller of the two. The null point shifts to 40 cm. The value of the smaller resistance in ohms is:

A)

3

B)

6

C)

9

D)

12

View Answer
11) If the potential difference across the internal resistance r1 is equal to the emf E of the battery, then:

A)

\[R={{r}_{1}}+{{r}_{2}}\]

B)

\[R=\frac{{{r}_{1}}}{{{r}_{2}}}\]

C)

\[R={{r}_{1}}-{{r}_{2}}\]

D)

\[R=\frac{{{r}_{2}}}{{{r}_{1}}}\]

View Answer
12) By using only two resistance coils-singly, in series or in parallel one should be able to obtain resistances of 3, 4, 12 and 16 ohms. The separate resistances of the coil are:

A)

3 and 4

B)

4 and 12

C)

12 and 16

D)

16 and 3

View Answer
13) The electrons in the beam of a television tube move horizontally from south to north. The vertical component of the earths magnetic field points down. The electron is deflected towards:

A)

west

B)

no deflection

C)

east

D)

north to south

View Answer
14) A tangent galvanometer has a reduction factor of 1 A arid it is placed with the plane of its coil perpendicular to die magnetic meridian. The deflection produced when a current of 1 A is passed through it is:

A)

\[60{}^\circ \]

B)

\[45{}^\circ \]

C)

\[30{}^\circ \]

D)

none of these

View Answer
15) In the given circuit, the voltmeter records 5 volts. The resistance of the voltmeter in ohms is:

A)

200

B)

100

C)

10

D)

50

View Answer
16) The wavelength of the radiation emittec by a body depends upon:

A)

the nature of the surface

B)

the area of the surface

C)

the temperature of die surface

D)

all of the above factors

View Answer
17) Which mirror is to be used to obtain a parallel beam of light from a small lamp?

A)

Plane mirror

B)

Convex mirror

C)

Concave mirror

D)

Any one of the above

View Answer
18) An ideal monoatomic gas is taken around the cycle ABCDA as shown in the PV diagram. The work done during the cycle is given by:

A)

\[\frac{1}{2}PV\]

B)

\[PV\]

C)

2 PV

D)

4 PV

View Answer
19) Which of the following is a wrong statement?

A)

D = 1/f where f is the focal length and D is called die refractive power of a lens.

B)

Power is expressed in a diopter when f is in metres

C)

Power is expressed in diopter and does not depend on the system of unit used to measure f

D)

D is positive for convergent lens and negative for divergent lens.

View Answer
20) Identify the wrong description of the above figures:

A)

1 represents far-sightedness

B)

2 correction for short sightedness

C)

3 represents far-sightedness

D)

4 correction for far-sightedness

View Answer
21) An electric field of 1500 V/m and a magnetic field of 0.40 weber/metre act on a moving electron. The minimum uniform speed along a straight line die electron could have is:

A)

\[1.6\times {{10}^{15}}m/s\]

B)

\[6\times {{10}^{-16}}m/s\]

C)

\[3.75\times {{10}^{3}}m/s\]

D)

\[3.75\times {{10}^{2}}m/s\]

View Answer
22) In an ammeter 10% of main current is passing through the galvanometer. If the resistance of the galvanometer is C, then the shunt resistance, in ohms is:

A)

9G

B)

\[\frac{G}{9}\]

C)

90G

D)

\[\frac{G}{90}\]

View Answer
23) Among the following properties describing diamagnetism identify the property that is wrongly stated:

A)

Diamagnetic material do not have permanent magnetic moment

B)

Diamagnetism is explained in terms of electromagnetic induction

C)

Diamagnetic materials have a small positive susceptibility

D)

The magnetic moment of individual electrons neutralize each other

View Answer
24) The induction coil works on the principle of:

A)

self-induction

B)

mutual induction

C)

Amperes rule

D)

Flemings right hand rule

View Answer
25) The square root of the product of inductance and capacitance has the dimension of:

A)

length

B)

mass

C)

time

D)

no dimension

View Answer
26) When a body falls in air, the resistance of air depends to a great extent on the shape of the body. 3 different shapes are given. Identify the combination of air resistances which truly represents the physical situation. (The cross sectional areas are the same).

A)

1 < 2 < 3

B)

2 < 3 < 1

C)

3 < 2 < 1

D)

3 < 1 < 2

View Answer
27) The adjacent figure is the part of a horizontally stretched net. Section AB is stretched with a force of 10 N. The tensions in the sections BC and BF are:

A)

10 N, 11 N

B)

10 N, 6 N

C)

10 N, 10 N

D)

cant be calculated due to insufficient data

View Answer
28) Out of the following four dimensional quantities, which one qualifies to be called a dimensional constant?

A)

Acceleration due to gravity

B)

Surface tension of water

C)

Weight of a standard kilogram mass

D)

The velocity of light in vacuum

View Answer
29) The relationship between the force F and position -v of a body is as shown in figure. The work done in displacing the body from x = 1 m to x = 5 m will be:

A)

30 J

B)

15 J

C)

25 J

D)

20 J

View Answer
30) From the top of a tower of two stones, whose masses are in the ratio 1:2 are thrown on straight up with an initial speed n and the second straight down with the same speed u. Then neglecting air resistance:

A)

the heavier stone hits die ground with a higher speed

B)

the lighter stone hits the ground with a higher speed

C)

both the stones will have the same speed when they hit the ground

D)

the speed cant be determined with the given data

View Answer
31) Infrared radiation was discovered in 1800 by:

A)

William Wollaston

B)

William Herschel

C)

Wilhelm Roentgen

D)

Thomas Young

View Answer
32) A particle on the trough of a wave at any instant will come to the mean position after a time (T = time period)

A)

T/2

B)

T/4

C)

T

D)

2T

View Answer
33) The disc of a siren containing 60 holes rotates at a constant speed of 360 rpm. The emitted sound is in unison with a tuning fork of frequency:

A)

10 Hz

B)

360 Hz

C)

216 Hz

D)

60 Hz

View Answer
34) The ratio of velocity of sound in hydrogen and oxygen at STP is:

A)

16 : 1

B)

8 : 1

C)

4 : 1

D)

2 : 1

View Answer
35) In an experiment with sonometer a tuning fork of frequency 256 Hz resonates with a length of 25 cm and another tuning fork resonates with a length of 16 cm. Tension of the string remaining constant the frequency of the second tuning fork is:

A)

163.84 Hz

B)

400 Hz

C)

320 Hz

D)

204.8 Hz

View Answer
36) The apparent frequency of a note is 200 Hz, when a listener is moving with a velocity of 40 ms-1 towards a stationary source. When he moves away from the same source with the same speed, the apparent frequency of the same note is 160 Hz. The velocity of sound in air in m/s is:

A)

340

B)

330

C)

360

D)

320

View Answer
37) The wave theory of light, in its original form, was first postulated by:

A)

Isaac Newton

B)

Christian Huygens

C)

Thomas Young

D)

Augustin Jean Fresnel

View Answer
38) If a liquid does not wet glass, its angle of contact is:

A)

zero

B)

acute

C)

obtuse

D)

right angle

View Answer
39) The magnitude of I in ampere is:

A)

0.1

B)

0.3

C)

0.6

D)

none of these

View Answer
40) Electron of mass m arid charge q is travelling with a speed v along a circular path of radius r at right angles to a uniform magnetic field of intensity B. If the speed of the electron is doubled and the magnetic field is halved the resulting path would have a radius:

A)

2 r

B)

4 r

C)

r/4

D)

r/2

View Answer
41) From the figure describing photoelectric effect we may infer correctly that:

A)

Na and Al both have the same threshold frequency

B)

maximum kinetic energy for both the metals depend linearly on the frequency

C)

the stopping potentials are different for Na and Al for the same change in frequency

D)

Al is a better photo sensitive material than Na.

View Answer
42) Two coherent light beams of intensity I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are:

A)

\[9I\]and \[I\]

B)

\[9I\]and \[3I\]

C)

\[5I\]and\[I\]

D)

\[5I\]and \[3I\]

View Answer
43) The electron in a hydrogen atom makes a transition from \[n={{n}_{1}}\]to \[n={{n}_{2}}\]state. The time period of the electron in the initial state \[\left( {{n}_{1}} \right)\] is eight times that in the final state\[\left( {{n}_{2}} \right)\]. The possible values of \[{{n}_{1}}\]and \[{{n}_{2}}\]are:

A)

\[{{n}_{1}}=8\],\[{{n}_{2}}=1\]

B)

\[{{n}_{1}}=4\], \[{{n}_{2}}=2\]

C)

\[{{n}_{1}}=2\],\[{{n}_{2}}=4\]

D)

\[{{n}_{1}}=1\], \[{{n}_{2}}=8\]

View Answer
44) If the forward voltage in a diode is increased, the width of the depletion region:

A)

increases

B)

decreases

C)

fluctuates

D)

no change

View Answer
45) Two nucleons are at a separation of one Fermi. Protons have a charge of\[+1.6\times {{10}^{-19}}C\]. The net nuclear force between them is\[{{F}_{1}}\], if both are neutrons, \[{{F}_{2}}\]if both are protons and \[{{F}_{3}}\] if one is proton and the other is neutron. Then:

A)

\[{{F}_{1}}=\text{ }{{F}_{2}}>\text{ }{{F}_{3}}\]

B)

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

C)

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

D)

\[{{F}_{1}}>{{F}_{2}}>{{F}_{3}}\]

View Answer
46) The electric flux for Gaussian surface A that enclose the charged particles in free space is (given \[\left( {{q}_{1}}=--14nC,{{q}_{2}}=78.85nC,{{q}_{3}}=-56nC \right)\]

A)

\[{{10}^{3}}N{{m}^{2~}}{{C}^{-1}}\]

B)

\[{{10}^{3}}C{{N}^{-1}}{{m}^{-2}}\]

C)

\[6.32\times {{10}^{3}}N{{m}^{2}}{{C}^{-1}}\]

D)

\[6.32\times 103\text{ }C{{N}^{-1}}{{m}^{-2}}\]

View Answer
47) Four metal conductors having different shapes 1. a sphere 2 cylinder 3. pear 4 lightning conductor are mounted on insulating stands and charged. The one which is best suited to retain the charges for a longer time is:

A)

1

B)

2

C)

3

D)

4

View Answer
48) The potential to which a conductor is raised, depends on:

A)

the amount of charge

B)

geometry and size of the conductor

C)

both [a] and [b]

D)

only on [a]

View Answer
49) The work done in carrying a charge q once round a circle of radius r with a charge Q at the centre is:

A)

\[\frac{qQ}{4\pi {{\varepsilon }_{0}}r}\]

B)

\[\frac{qQ}{4\pi {{\varepsilon }_{0}}^{2}{{r}^{2}}}\]

C)

\[\frac{qQ}{4\pi {{\varepsilon }_{0}}{{r}^{2}}}\]

D)

none of these

View Answer
50) An air filled parallel plate condenser has a capacity of\[2\text{ }pF\]. The separation of the plates is doubled and the interspace between the plates is filled with wax. If the capacity is increased to\[6\text{ }pF\], the dielectric constant of wax is:

A)

2

B)

3

C)

4

D)

6

View Answer
51) The energy that should be added to an electron to reduce its de-Broglie wavelength from 1 nm to 0.5 is:

A)

four times the initial energy

B)

equal to the initial energy

C)

twice the initial energy

D)

thrice the initial energy

View Answer
52) Mean life of a radioactive sample is 100 seconds. Then its half-life (in minutes) is:

A)

0.693

B)

1

C)

\[{{10}^{-4}}\]

D)

1.155

View Answer
53) Consider two nuclei of the same radioactive nuclide. One of the nuclei was created in a supernova explosion 5 billion years ago. The other was created in a nuclear reactor 5 minutes ago. The probability of decay during the next time is:

A)

different for each nuclei

B)

nuclei created in explosion decays first

C)

nuclei created in the reactor decays first

D)

independent of the time of creation

View Answer
54) Bohrs atom model assumes:

A)

the nucleus is of infinite mass and is at rest

B)

electrons in a quantized orbit will not radiate energy

C)

mass of electron remains constant

D)

all the above conditions

View Answer
55) Identify the property which is not characteristic for a semiconductor?

A)

At a very low temperatures, it behaves like an insulator

B)

At higher temperatures two types of charge carriers will cause conductivity

C)

The charge carriers are electrons and holes in the valence band at higher temperatures

D)

The semiconductor is electrically neutral.

View Answer
56) Identify the wrong statement in the following. Coulombs law correctly described the electric force that:

A)

binds the electrons of an atom to its nucleus

B)

binds the protons and neutrons in the nucleus of an atom

C)

binds atoms together to form molecules

D)

binds atoms and molecules to form solids

View Answer
57) A single slit of width d is illuminated by violet light of wavelength 400 nm and the width of the diffraction pattern is measured as y. When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, the width of the diffraction pattern is:

A)

the pattern vanishes and the width is zero

B)

\[y/3\]

C)

\[3y\]

D)

none of these

View Answer
58) At Kavalur in India, the astronomers using a telescope whose objective had a diameter of one metre started using telescope of diameter 2.54 m. This resulted in:

A)

the increase in the resolving power by 2.54 times for the same A

B)

the increase in the limiting angle by 2.54 times for the same X

C)

decrease in the resolving power

D)

no effect on the limiting angle

View Answer
59) When unpolarised light beam is incident from air onto glass \[\left( n=1.5 \right)\] at the polarising angle:

A)

reflected beam is polarised 100 percent

B)

reflected arid refracted beams are partially polarised

C)

the reason for [a] is that almost all the light is reflected

D)

all of the above

View Answer
60) Select the right option in the following:

A)

Christian Huygens, a contemporary of Newton established the wave theory of light by assuming that light waves were transverse.

B)

Maxwell provided the theoretical evidence that light is transverse wave

C)

Thomas Young experimentally proved the wave behavior of light and Huygens assumption

D)

All the statements given above, correctly answers the question what is light?

View Answer
61) 15 moles of \[{{H}_{2}}\]and 5.2 moles of \[{{I}_{2}}\] are mixed and allowed to attain equilibrium at   \[{{500}^{o}}C\].   At   equilibrium,   the concentration of \[HI\] is found to be 10 moles. The equilibrium constant for the formation of \[HI\] is:

A)

\[50\]

B)

\[15\]

C)

\[100\]

D)

\[25\]

View Answer
62) If, in the reaction \[{{N}_{2}}{{O}_{4}}2N{{O}_{2}}\], x is, that part of \[{{N}_{2}}{{O}_{4}}\] which dissociates, then the number of molecules at equilibrium will be:

A)

\[1\]

B)

\[3\]

C)

\[(1+x)\]

D)

\[{{(1+x)}^{2}}\]

View Answer
63) Which of these does not influence the rate of reaction?

A)

Nature of the reactants

B)

Concentration of the reactants

C)

Temperature of the reaction

D)

Molecularity of the reaction

View Answer
64) For the reaction \[A+B\xrightarrow{{}}C\], it is found that doubling the concentration of A increases the rate by 4 times, and doubling the concentration of B doubles the reaction rate. What is the overall order of the reaction?

A)

\[4\]

B)

\[3/2\]

C)

\[3\]

D)

\[1\]

View Answer
65) The rate at which a substance reacts depends on its:

A)

atomic weight

B)

atomic number

C)

molecular weight

D)

active mass

View Answer
66) A compound A has a molecular formula \[{{C}_{2}}C{{I}_{3}}OH\]. It reduces Fehlings solution and on oxidation, gives a monocarboxylic acid B. A can be obtained by the action of chlorine on ethyl alcohol. A is:

A)

chloroform

B)

chloral

C)

methyl chloride

D)

monochloroacetic acid

View Answer
67) Which of the following halo alkanes is most reactive?

A)

1-chloropropane

B)

1-bromopropane

C)

2-chloropropane

D)

2-bromopropane

View Answer
68) The reaction in which phenol differs from alcohol is:

A)

it undergoes esterification with carboxylic acid

B)

it reacts with ammonia

C)

it forms yellow crystals of iodoform

D)

it liberates \[{{H}_{2}}\] with Na metal.

View Answer
69) An organic compound A containing C, H and 0 has a pleasant odour with K-CET Medical Entrance Examination boiling point of\[{{78}^{o}}C\]. On boiling A with concentrated \[{{H}_{2}}S{{O}_{4}}\], a colourless gas is produced which decolourises bromine water and alkaline \[KMn{{O}_{4}}\]. The organic liquid A is:

A)

\[{{C}_{2}}{{H}_{5}}Cl\]

B)

\[{{C}_{2}}{{H}_{5}}COOC{{H}_{3}}\]

C)

\[{{C}_{2}}{{H}_{5}}OH\]

D)

\[{{C}_{2}}{{H}_{6}}\]

View Answer
70) Which of the following is an amphoteric acid?

A)

Glycine

B)

Salicylic acid

C)

Benzoic acid

D)

Citric acid

View Answer
71) Gold is extracted by hydrometallurgical process, based on its property:

A)

of being electropositive

B)

of being less reactive

C)

to form complexes which are water soluble

D)

to form salts which are water soluble

View Answer
72) In blast furnace, iron oxide is reduced by:

A)

hot blast of air

B)

carbon monoxide

C)

carbon

D)

silica

View Answer
73) Which of the following pairs of elements cannot form an alloy?

A)

\[Zn,Cu\]

B)

\[Fe,Hg\]

C)

\[Fe,C\]

D)

\[Hg,Na\]

View Answer
74) Which compound is zero valent metal complex?

A)

\[[Cu{{(N{{H}_{3}})}_{4}}]S{{o}_{4}}\]

B)

\[[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]

C)

\[[Ni{{(CO)}_{4}}]\]

D)

\[{{K}_{3}}[Fe{{(CN)}_{6}}]\]

View Answer
75) Alum is a water purifier because it :

A)

coagulates the impurities

B)

softens hard water

C)

gives taste

D)

destroys the pathogenic bacteria

View Answer
76) For the reaction \[{{N}_{2}}_{(g)}+{{O}_{2}}_{(g)}2N{{O}_{(g)}}\]the value of \[{{K}_{c}}\] at \[{{800}^{o}}C\]is 0.1. When the equilibrium concentration of both the reactants is \[0.5mol\], what is the value of \[{{K}_{p}}\] at the same temperature?

A)

\[0.5\]

B)

\[0.1\]

C)

\[0.01\]

D)

\[0.025\]

View Answer
77) The extent of adsorption of a gas on a solid depends on:

A)

Nature of the gas

B)

Pressure of the gas

C)

Temperature of the gas

D)

all of the above

View Answer
78) A emulsifier is a substance which:

A)

stabilises the emulsion

B)

homogenises the emulsion

C)

coagulates the emulsion

D)

accelerates the dispersion of liquid in liquid

View Answer
79) Which of the following types of metals form the most efficient catalysts?

A)

Alkali metals

B)

Alkaline earth metals

C)

Transition metals

D)

All of the above

View Answer
80) The species among the following, which can act as an acid and a base is:

A)

\[HSO_{4}^{-}\]

B)

\[SO_{4}^{2-}\]

C)

\[{{H}_{3}}{{O}^{+}}\]

D)

\[C{{l}^{-}}\]

View Answer
81) Benzyl alcohol and sodium benzoate is obtained by the action of sodium hydroxide on benzaldehyde. This reaction is known as:

A)

Perkins reaction

B)

Cannizaros reaction

C)

Sandmeyers reaction

D)

Claisen condensation

View Answer
82) Ethyl chloride on heating with \[AgCN\] forms a compound X. The functional isomer of X is:

A)

\[{{C}_{2}}{{H}_{5}}NC\]

B)

\[{{C}_{2}}{{H}_{5}}N{{H}_{2}}\]

C)

\[{{C}_{2}}{{H}_{5}}CN\]

D)

none of these

View Answer
83) A compound, containing only carbon, hydrogen and oxygen, has a molecular weight of 44. On complete oxidation it is converted into a compound of molecular weight 60. The original compound is:

A)

an aldehyde

B)

an acid

C)

an alcohol

D)

an ether

View Answer
84) Grignard reagent adds to:

A)

\[>C=O\]

B)

\[-C\equiv O\]

C)

\[>C=S\]

D)

all of these

View Answer
85) Which of the following biomolecules contain non-transition metal ion?

A)

Vitamin \[{{B}_{12}}\]

B)

Chlorophyll

C)

Haemoglobin

D)

Insulin

View Answer
86) A mixture of two moles of carbon monoxide and one mole of oxygen, in a closed vessel is ignited to convert the carbon monoxide to carbon dioxide. If \[\Delta H\] is the enthalpy change and \[\Delta E\]is the change in internal energy, then:

A)

\[\Delta H>\Delta E\]

B)

\[\Delta H<\Delta E\]

C)

\[\Delta H=\Delta E\]

D)

The relationship depends on the capacity of the vessel

View Answer
87) The cooling in refrigerator is due to:

A)

Reaction of the refrigerator gas

B)

Expansion of ice

C)

The expansion of the gas in the refrigerator

D)

The work of the compressor

View Answer
88) For a system in equilibrium, \[\Delta G=0\], under conditions of constant .........

A)

Temperature and pressure

B)

Temperature and volume

C)

Pressure and volume

D)

Energy and volume

View Answer
89) Molar heat of vaporisation of a liquid is \[6kj\,mo{{l}^{-1}}\] . If the entropy change is \[16J\,mo{{l}^{-1}}{{K}^{-1}}\] , the boiling point of the liquid is :

A)

\[{{375}^{o}}C\]

B)

\[375K\]

C)

\[273K\]

D)

\[{{102}^{o}}C\]

View Answer
90) The temperature of the system decreases in an:

A)

Adiabatic compression

B)

Isothermal compression

C)

Isothermal expansion

D)

Adiabatic expansion

View Answer
91) A buffer solution has equal volumes of\[0.2M\text{ }N{{H}_{4}}OH\]and \[0.02M\,N{{H}_{4}}Cl\]The \[_{p}{{k}_{a}}\] of the base is 5. The pH is:

A)

\[10\]

B)

\[9\]

C)

\[4\]

D)

\[7\]

View Answer
92) The hydrogen electrode is dipped in a solution of pH 3 at\[{{25}^{o}}C\]. The potential would be (the value of \[2.303\text{ }RT/F\]is \[0.059V\]):

A)

\[0.177V\]

B)

\[0.087V\]

C)

\[0.059V\]

D)

\[-0.177V\]

View Answer
93) \[20mL\] of \[0.5N\,HCl\]and \[35mL\]of \[0.1N\] \[NaOH\] are mixed. The resulting solution will:

A)

Be neutral

B)

Be basic

C)

Turn phenolphthalein solution pink

D)

Turn methyl orange red

View Answer
94) Corrosion of iron is essentially an electrochemical phenomenon where the cell reactions are:

A)

\[Fe\] is oxidised to \[F{{e}^{2+}}\] and dissolved oxygen in water is reduced to \[O{{H}^{-}}\]

B)

\[Fe\] is oxidised to \[F{{e}^{3+}}\] and \[{{H}_{2}}O\] is reduced to \[O_{2}^{2-}\]

C)

\[Fe\] is oxidised to \[F{{e}^{2+}}\] and \[{{H}_{2}}O\] is reduced to \[O_{2}^{-}\]

D)

\[Fe\] is oxidised to \[F{{e}^{2+}}\] and \[{{H}_{2}}O\] is reduced to \[{{O}_{2}}\]

View Answer
95) The standard electrode potential is measured by:

A)

Electrometer

B)

Voltmeter

C)

Pyrometer

D)

Galvanometer

View Answer
96) A precipitate of \[AgCl\] is formed when equal volumes of the following are mixed: [\[{{K}_{sp}}\] for \[AgCl={{10}^{-10}}\]]

A)

\[{{10}^{-4}}MAgN{{O}_{3}}\] And \[{{10}^{-7}}M\,\,HCl\]

B)

\[{{10}^{-5}}M\,AgN{{O}_{3}}\] And \[{{10}^{-6}}M\,HCl\]

C)

\[{{10}^{-5}}M\,AgN{{O}_{3}}\] And \[{{10}^{-4}}M\,HCl\]

D)

\[{{10}^{-6}}M\,AgN{{O}_{3}}\] And \[{{10}^{-6}}M\,HCl\]

View Answer
97) Which one of the following defects in the crystals lowers its density?

A)

Frenkel defect

B)

Schottky defect

C)

F-centres

D)

Interstitial defect

View Answer
98) A radioactive isotope has a half-life of 10 days. If today 125 mg is left over, what was its original weight 40 days earlier?

A)

\[2g\]

B)

\[600mg\]

C)

\[1g\]

D)

\[1.5g\]

View Answer
99) Which of the following cannot be accelerated?

A)

\[\alpha \]-particle

B)

\[\beta \]-particle

C)

Protons

D)

Neutrons

View Answer
100) In which of the following nuclear reaction neutrons is emitted?

A)

\[_{13}^{27}Al+_{2}^{4}He\to _{15}^{30}P\]

B)

\[_{6}^{12}C+_{1}^{1}He\to _{7}^{13}N\]

C)

(c} \[_{15}^{30}P\to _{14}^{30}Si\]

D)

\[_{96}^{241}Am+_{2}^{4}He\to _{97}^{245}Bk\]

View Answer
101) Molarity of \[0.2N\text{ }{{H}_{2}}S{{O}_{4}}\]is:

A)

\[0.2\]

B)

\[0.4\]

C)

\[0.6\]

D)

\[0.1\]

View Answer
102) In the equation of state of an ideal gas\[PV=nRT\], the value of the universal gas constant would depend only on:

A)

The nature of the gas

B)

The pressure of the gas

C)

The units of the measurement

D)

None of the above

View Answer
103) A commercial sample of hydrogen peroxide is labelled as 10 volume. Its percentage strength is nearly:

A)

\[1%\]

B)

\[3%\]

C)

\[10%\]

D)

\[90%\]

View Answer
104) Activated charcoal is used to remove colouring matter from pure substances. It works by:

A)

Oxidation

B)

Reduction

C)

Bleaching

D)

Adsorption

View Answer
105) When plants and animals decay, the organic nitrogen is converted into inorganic nitrogen. The inorganic nitrogen is in the form of:

A)

Ammonia

B)

Elements of nitrogen

C)

Nitrates

D)

Nitrides

View Answer
106) Three dimensional molecules with cross links are formed in the case of a:

A)

thermoplastic

B)

thermosetting plastic

C)

Both [a] and [b]

D)

None of the above

View Answer
107) Sucrose molecule is made up of:

A)

A gluco pyranose and a fructo pyranose

B)

A gluco pyranose and a fructo furanose

C)

A gluco furanose and a fructo pyranose

D)

A gluco furanose and a fructo furanose

View Answer
108) Water insoluble component of starch is:

A)

Amylopectin

B)

Amylose

C)

Cellulose

D)

None of these

View Answer
109) An example for a saturated fatty acid, present in nature is:

A)

Oleic acid

B)

linoleic acid

C)

linolenic acid

D)

palmitic acid

View Answer
110) A   nanopeptide   contains......peptide linkages:

A)

\[10\]

B)

\[8\]

C)

\[9\]

D)

\[18\]

View Answer
111) A gas decolourised by \[KMn{{O}_{4}}\] solution but gives no precipitate with ammoniacal cuprous chloride is:

A)

Ethane

B)

Methane

C)

ethane

D)

Acetylene

View Answer
112) \[{{H}_{3}}C-\underset{Cl}{\mathop{\underset{|}{\mathop{C}}\,}}\,=CH-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}\]

A)

2-chloro-4-methyl-2pentene

B)

4-chloro-2-methyl-3-pentene

C)

4-methyl-2-chloro-2-pentene

D)

2-chloro-4,4-dimethyl-2-butene

View Answer
113) Amongst the following the compound that can most readily get sulphonated is:

A)

Benzene

B)

Toluene

C)

Nitrobenzene

D)

Chlorobenzene

View Answer
114) Household gaseous fuel (LPG) mainly contains:

A)

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

B)

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

C)

\[{{C}_{2}}{{H}_{4}}\]

D)

\[{{C}_{4}}{{H}_{10}}\]

View Answer
115) Use of chlorofluoro carbons is not encouraged because:

A)

They are harmful to the eyes of people that use it

B)

They damage the refrigerators and air conditioners

C)

They eat away the ozone in the atmosphere

D)

They destroy the oxygen layer

View Answer
116) An example of a sulphur containing amino acid is:

A)

Lysine

B)

serine

C)

Cysteine

D)

tyrosine

View Answer
117) Which of the following is not present in a nucleotide?

A)

Cytosine

B)

Guanine

C)

Adenine

D)

Tyrosine

View Answer
118) Antiseptic chloroxylenol is:

A)

4-chloro-3,5-dimethyl phenol

B)

3-chloro-4,5-dimethyl phenol

C)

4-chloro-2,5-dimethyl phenol

D)

5-chJoro-3,4-dimethyl phenol

View Answer
119) An atom of an element A has three electrons in its outermost orbit and that of B has six electrons in its outermost orbit. The formula of the compound between these two will be:

A)

\[{{A}_{3}}{{B}_{6}}\]

B)

\[{{A}_{2}}{{B}_{3}}\]

C)

\[{{A}_{3}}{{B}_{2}}\]

D)

\[{{A}_{2}}B\]

View Answer
120) Among \[N{{a}^{+}},Na,Mg\] and \[M{{g}^{2+}}\], the largest particle is:

A)

\[M{{g}^{2+}}\]

B)

\[Mg\]

C)

\[Na\]

D)

\[N{{a}^{+}}\]

View Answer
121) Identify from the following, a characteristic pigment which contain copper containing protein:

A)

plastoquinone

B)

ferredoxin

C)

cytochrome

D)

plastocyanin

View Answer
122) In which of the following regions of a nephron does maximum reabsorption of useful substances, takes place?

A)

Henles loop

B)

Glomerulus

C)

Proximal convoluted tubule

D)

Distal convoluted tubule

View Answer
123) Which of the following statements is true with reference to cross pollination in angiosperms?

A)

It requires the production of a large number of pollen grains

B)

It can fail to occur due to distance barrier

C)

It occurs only in unisexual flowers

D)

It most often results in high yield of plants

View Answer
124) Which of the following natural process is likely to hasten organic evolution?

A)

Favourable environment

B)

Overproduction

C)

Abundant genotypic variations

D)

Reproductive isolation

View Answer
125) A technology which has found immense use in solving cases of disputed parentage, is:

A)

polyniorasc chain reaction

B)

DNA finger printing

C)

monoclonal antibody production

D)

recombinant DNA technology

View Answer
126) Green house effect is the cumulative result of the influences of certain gases. Identify the gas, which is not involved in this influence:

A)

methane

B)

chlorofluorocarbons

C)

nitrogen

D)

carbon dioxide

View Answer

127) Column - I lists some principles, pertaining to physiology of plants. Column - II lists the names of scientist who proposed the idea. Match the two columns. Identify the correct choice from the given:

	Column-I		Column-II
A.	Mass flow hypothesis	p.	J. C. Bose
B.	Relay pump theory	q.	Strasburger
C.	Transpiration pull theory	r.	Munch
D.	Pulsatile movement theory	s.	Godlewski
		t.	Dixon and Jolly

A = r; B = s; C = t; D = p

A = r; B = s; C = p; D = t

A = s; B = r; C = p; D = t

A = s; B = r; C = t; D = p

View Answer

128) Which one of the following types of silk is being produced extensively in South East Asia:

A)

Eri

B)

Mulberry

C)

Tassah

D)

Muga

View Answer
129) Identify from the following plant parts, the major contributors to human food?

A)

Stem

B)

Root

C)

Fruits

D)

Leaves

View Answer
130) Alcohol is the most socially accepted narcotic drug. Excessive consumption of alcohol leads to:

A)

state of hallucination

B)

loss of memory

C)

suppression of brain function

D)

cirrhosis of liver

View Answer
131) The following figure shows the stomatal apparatus. Identify the parts labelled as A, B, C and D. Choose the correct answer from the following:

A)

A = Guard cells, B = Stoma, C = Chloroplasts, D = Subsidiary cells

B)

A = Subsidiary cells, B = Chloroplasts, C = Stoma, D = Guard cells

C)

A = Guard cells, B = Chloroplasts, C = Stoma, D = Subsidiary cells

D)

A = Subsidiary cells, B = Stoma, C = Chloroplasts, D = Guard cells

View Answer
132) In which of the following plants, there will be 110 transpiration?

A)

Aquatic, submerged plants

B)

Plants living in deserts

C)

Aquatic plants with floating leaves

D)

Plants growing in hilly regions

View Answer
133) Which of the following groups of algae do not have eukaryotic organization?

A)

Green algae

B)

Blue - green algae

C)

Red algae

D)

Golden brown algae

View Answer
134) Identify from the following a hormone produced by the pituitary gland in both males and females but functional only in females:

A)

vasopressin

B)

relaxin

C)

prolactin

D)

somatotropic hormone

View Answer
135) Which one of the following is not a characteristic feature of bryophytes?

A)

Dominant gametophy tic generation

B)

Filamentous rhizoids

C)

Amphibious habitat

D)

Vascular tissues

View Answer
136) Haemophilia is a condition where there is:

A)

no production of haemoglobin in the blood

B)

no production of melanin in the skin

C)

a failure in the immune mechanism of blood

D)

a delay in. the clotting of blood

View Answer
137) Read the statements A and B A: The human small intestine is the longest portion in the alimentary canal B: Absorption of digested food requires a very large surface area Identify the correct choice on the two statements

A)

statement A is correct, B is wrong

B)

statement A and B are both correct

C)

both the statements are wrong

D)

statement B is correct, A is wrong

View Answer
138) In the lac - operon model, lactose molecules function as:

A)

inducers which bind with the operator gene

B)

repressers which bind with the operator gene

C)

inducers which bind with the represser protein

D)

corepressors which bind with represser protein

View Answer
139) When a cell of diameter 2 \[\mu \] grows to double its diameter, what will happen to its surface area volume relationship?

A)

It will reduce to half

B)

It will remain the same

C)

It cannot be determined

D)

It will double

View Answer
140) Which of the following is a genetically dominant trait in human beings?

A)

Colourblindness

B)

O blood group

C)

Albinism

D)

\[R{{h}^{+}}\] blood group

View Answer
141) When the chromosome number of n given organism has one additional chromosome in one of the homologous pairs, the condition is known as:

A)

trisomy

B)

monosomy

C)

polyploidy

D)

nullisomy

View Answer
142) If a germ cell in a female gonad and a germ cell in a male gonad begin undergoing meiosis simultaneously, what will be the ratio of ova and sperms produced?

A)

1 : 1

B)

1 : 2

C)

1 : 4

D)

2 : 1

View Answer
143) Soil conservation is a practice in which:

A)

soil is protected from being carried away by wind and water

B)

soil is well aerated

C)

soil fertility is enhanced

D)

soil erosion is allowed

View Answer
144) The main function of lacteals in the villi of human small intestine is the absorption of:

A)

amino acids and glucose

B)

glucose and vitamins

C)

water and minerals salts

D)

fatty acids and glycerol

View Answer
145) A micro-organism, when viewed under a compound microscope with an objective lens of 40 X and an eye piece of 10 X magnification measured 4000 \[\mu \] in length. The same micro-organism when observed under a dissection microscope with a lens of 10 X magnification would measure:

A)

40 \[\mu \]

B)

100 \[\mu \]

C)

10 \[\mu \]

D)

400 \[\mu \]

View Answer
146) Identify from the following, a plant tissue in which lignin does not occur in the cell walls?

A)

Collenchyma

B)

Sclerenchyma fibres

C)

Sclereids

D)

Xylem tracheae

View Answer
147) Which of the following statement is not true with reference to mitochondria?

A)

They divide in synchrony with cell cycle

B)

They contain DNA

C)

The contain cristae

D)

They store and release chemical energy

View Answer

148) Column - I lists the parts of the human brain and Column - II lists the functions. Match the two columns and identify the correct choice from those given:

	Column-I		Column-II
A.	Cerebrum	p.	controls the pituitary
B.	Cerebellum	q.	controls vision and hearing
C.	Hypothalamus	r.	controls the rate of heart beat
D.	Midbrain	s.	seat of intelligence
		t.	maintains body posture

A = t; B = s; C = q; D = p

A = s; B = t; C = q; D = p

A = t; B = s; C = p; D = q

A = s; B = t; C = p; D = q

View Answer

149) The site of EMP pathway of breakdown of glucose in a cell is

A)

nucleoplasm

B)

mitochondria

C)

cytoplasm

D)

peroxisome

View Answer
150) The following diagram indicates the reflex arc. Identify the parts labelled as A, B, C, D, E, F and G. Choose the correct option:

A)

A = sense organ; B = sensory nerve

C = dorsal horn; D = interneuron

E = ventral horn; F = motor nerve

G = effector

B)

A = sense organ; B = sensory nerve

C = ventral horn; D = interneuron

E = dorsal horn; F = motor nerve

G = effector

C)

A = sense organ; B = motor nerve

C = dorsal horn; D = interneuron

E = ventral horn; F = sensory nerve

G = effector

D)

A = effector; B = motor nerve

C = ventral horn; D = interneuron;

E = dorsal horn; F = sensory nerve;

G = sense organ

View Answer
151) Which of the following tissue originates exclusively from the ectoderm of the embryo?

A)

Muscular tissue

B)

Epithelial tissue

C)

Nervous tissue

D)

Connective tissue

View Answer
152) The pyramid of energy is always upright for any ecosystem. This situation indicates the fact that:

A)

producers have the lowest energy conversion efficiency

B)

carnivores have a better energy conversion efficiency than herbivores

C)

energy conversion efficiency is the same in all trophic levels

D)

herbivores have a better energy conversion efficiency than carnivores

View Answer
153) Gynoecium in the members of family Leguminosae is composed of:

A)

two carpels

B)

one carpel

C)

five carpels

D)

three carpels

View Answer
154) Identify from the following, the compound that links glycolysis and Krebs cycle:

A)

oxalo acetic acid

B)

pvruvic acid

C)

lactic acid

D)

acetyl Co-A

View Answer
155) Which part of the human brain controls the breathing movements?

A)

Medulla oblongata

B)

Cerebellum

C)

Diencephalon

D)

Cerebrum

View Answer
156) Leaf fall occurs in a tree when there is an increase in the concentration of:

A)

abscisic acid

B)

auxins

C)

gibberellins

D)

cytokinins

View Answer
157) Which of the following is a disease resistant, high yielding breed of poultry developed in Karnataka?

A)

Aseel

B)

White leg horn

C)

Giriraja

D)

Plymouth rock

View Answer
158) Sertoli cells are nourishing cells in the testis. They also secrete a hormone. Identify the same:

A)

gonadotropin

B)

testosterone

C)

relaxin

D)

inhibin

View Answer
159) Molecular biology is concerned with the study of:

A)

structure and functions of polymers of life

B)

all aspects of micro organisms

C)

the process by which molecules of chemical substances organized into primitive form of life

D)

the chemistry of living organisms

View Answer
160) The inner, darker and harder portion of secondary xylem that cannot conduct water, in an older dicot stem, is called:

A)

alburnum

B)

bast

C)

wood

D)

duramen

View Answer
161) The closed circulatory system is found in:

A)

insects

B)

lobsters

C)

frog

D)

clams

View Answer
162) The law of limiting factors was proposed with particular reference to photosynthesis. Identify the scientist who proposed this law?

A)

Calvin

B)

Weismann

C)

Emerson

D)

Blackman

View Answer
163) Osmo regulation in Paramecium is a function of:

A)

contractile vacuole

B)

trichocysts

C)

cytopyge

D)

cytostome

View Answer
164) Identify from the following the branch of biology which provides direct evidences in favour of organic evolution?

A)

Morphology

B)

Taxonomy

C)

Palaeontology

D)

Embryology

View Answer
165) Which of the following groups of cells in the male gonad, represent haploid cells?

A)

Spermatogonial cells

B)

Germinal epithelia cells

C)

Secondary spermatocytes

D)

Primary spermatocytes

View Answer
166) A nucleosome is a pertion of the chronionema containing:

A)

only histones

B)

both DNA and histones

C)

only DNA

D)

both DNA and RNA

View Answer
167) Maximum amount of oxygen is exchanged from the blood in the:

A)

capillaries surrounding tissue cells

B)

arteries of the body

C)

left auricle of the heart

D)

capillaries surrounding the alveoli

View Answer
168) Which of the following term is used to describe the component isolated from a plant, for in vitro culturing in the specific medium?

A)

Callus

B)

Embryoid

C)

Synthetic seeds

D)

Explant

View Answer
169) If a cell has twice as much DNA as in a normal functional cell, it means that the cells:

A)

is preparing to divide

B)

has completed division

C)

has reached the end of its life span

D)

has ceased to function

View Answer
170) Apical dominance in plants is due to the presence of:

A)

cytokinins in the leaf apex

B)

gibberellins in the lateral bud

C)

auxins at the shoot tip

D)

abscisic acid at the shoot tip

View Answer
171) Which of the following structures are derivatives of the endoderm?

A)

Alimentary canal and respiratory structures

B)

Muscles and blood

C)

Excretory and reproductive structures

D)

Skin and nerve cord

View Answer
172) The sequence of nitrogen bases in a portion of a coding segment of DNA was AAT GOT TAG GCA. What will be the sequence of nitrogen bases in the corresponding region of the transcribed m -RNA?

A)

UUT CGT TUC CGU

B)

AAT GCT TAG GCA

C)

UUA CGA AUC CGU

D)

TTA CGA ATC CGT

View Answer
173) Which chamber of the human heart has the thickest muscular wall?

A)

Left auricle

B)

Left ventricle

C)

Right auricle

D)

Right ventricle

View Answer
174) Entomology is concerned with the study of:

A)

formation and properties of soil

B)

agricultural practices

C)

various aspects of human life

D)

various aspects of insects

View Answer
175) Which of the following is called as a detritivore?

A)

An animal feeding on decaying organic matter

B)

An animal feeding on a plant

C)

A plant feeding on an animal

D)

An animal feeding on another animal

View Answer
176) How many human teeth appear twice during the life span of an individual?

A)

16

B)

32

C)

22

D)

20

View Answer
177) If the size of a fertilized egg of frog is compared with the size of its blastula and gastrula stages, which of the following observations will be correct?

A)

There is a progressive increase in size from zygote to blastula to gastrula

B)

All the three will be of the same size

C)

Zygote will be smaller, while blastula and gastrula will be larger

D)

Gastrula will be larger, while zygote and blastula will be of same size

View Answer
178) During protein synthesis AUG functions as the initiator codon in; m - RNA. What should be the anticodon on the? t - RNA molecule that picks up and brings the amino acid specified by the codon?

A)

UAC

B)

TAC

C)

CAU

D)

GUA

View Answer
179) Choose the odd pair out in the following:

A)

areolar connective tissue - collagen

B)

epithelium - keratin

C)

neuron - melanin

D)

muscle fibre - actin

View Answer
180) The macronutrient which is an essential component of all organic compounds, yet not obtained by plants from soil, is:

A)

nitrogen

B)

carbon

C)

phosphorus

D)

magnesium

View Answer

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