Solved papers for JCECE Medical JCECE Medical Solved Paper-2002

JCECE Medical Solved Paper-2002 Total Questions - 150

1) A long spring is stretched by 2 cm. Its potential energy is U. If the spring is stretched by 10 cm, the potential energy stored in it will be:

A)

\[\frac{U}{25}\]

B)

\[\frac{U}{5}\]

C)

\[3U\]

D)

\[25U\]

View Answer
2) The coefficient of restitution e for a perfectly elastic collision is:

A)

1

B)

zero

C)

infinite

D)

\[-1\]

View Answer
3) A soap bubble is given negative charge. Then its radius:

A)

decreases

B)

increases

C)

remains unchanged

D)

nothing can be said because sufficient information is not available

View Answer
4) Source of energy in sun is caused by :

A)

fusion of heavy nuclei

B)

fission of heavy nuclei

C)

fusion of hydrogen nuclei

D)

fission of hydrogen nuclei

View Answer
5) A particle moves along a circular path under the action of a force. The work done by the force is:

A)

positive and non-zero

B)

negative and non-zero

C)

zero

D)

none of the above

View Answer
6) A particle is moving in a circle with uniform speed. It has constant:

A)

velocity

B)

acceleration

C)

kinetic energy

D)

displacement

View Answer
7) If \[|\vec{A}+\vec{B}|=|\vec{A}-\vec{B}|,A\]and B are finite then

A)

\[\overset{\to }{\mathop{A}}\,\text{ }is\text{ }parallel\text{ }to\text{ }\overset{\to }{\mathop{B}}\,\]

B)

\[\overset{\to }{\mathop{A}}\,\text{ }is\text{ }anti-parallel\text{ }to\text{ }\overset{\to }{\mathop{B}}\,\]

C)

\[\overset{\to }{\mathop{A}}\,\text{ }and\,\,\overset{\to }{\mathop{B}}\,\,are\,\,equal\,\,in\,\,magnitude\]

D)

\[\overset{\to }{\mathop{A}}\,\text{ }and\overset{\to }{\mathop{B}}\,are\,\,mutually\,\,perpendicular\]

View Answer
8) A number of small drops of mercury adiabatically coalesce, to form a single drop. The temperature of the drop:

A)

increases

B)

remains same

C)

decreases

D)

depend on size

View Answer
9) Light waves can be polarised as they are :

A)

transverse

B)

of high frequency

C)

longitudinal

D)

reflected

View Answer
10) In which process the speed of transfer of heat is maximum?

A)

Conduction

B)

Convection

C)

Radiation

D)

In all these heat is transferred with the same speed

View Answer
11) Youngs experiment establishes that:

A)

light consists of waves

B)

light consists of particles

C)

light is neither of particles nor waves

D)

light consists of particles and waves both

View Answer
12) A heating coil is labelled 100 W, 220V. The coil is cut into two equal pieces and the two pieces are joined in parallel to the same source. The energy now liberated per second is:

A)

400 J

B)

25 J

C)

50 J

D)

200J

View Answer
13) Bending of light rays around the edges of an obstacle is known as:

A)

refraction

B)

polarisation

C)

diffraction

D)

reflection

View Answer
14) A convex lens of focal length 40cm is in contact with a concave lens of focal length 25 cm. The power of the combination of the two lenses is:

A)

\[-1.5D\]

B)

\[~-6.5\text{ }D\]

C)

6.5 D

D)

6.67 D

View Answer
15) Particle A moves in S-N direction and particle B moves in W-E direction. Then the velocity-of L particle A with respect to B is:

A)

N-W direction

B)

N-E direction

C)

S-W direction

D)

S-E direction

View Answer
16) Weightlessness experienced while orbiting the earth in space ships is the result of:

A)

inertia

B)

acceleration

C)

zero gravity

D)

centre of gravity

View Answer
17) If one mole of a monoatomic gas \[(\gamma =5/3)\]is mixed with one mole of a diatomic gas \[(\gamma =7/5),\] the value of \[\gamma \]for the mixture is:

A)

1.40

B)

1.50

C)

1.53

D)

3.07

View Answer
18) Which of the following statements is wrong?

A)

Sound travels in straight line

B)

Sound travels as waves

C)

Sound is a form of energy

D)

Sound travels faster in vacuum than in air

View Answer
19) If momentum of a certain body is increased by 50%, then increases in the KE of the body will be:

A)

25%

B)

50%

C)

100%

D)

125%

View Answer
20) A uniform chain of length L and mass M is lying on a smooth table and one-third of its length is hanging vertically down over the edge of the table, if g is the acceleration due to gravity the work required to pull the hanging part of the chain on the table is:

A)

\[MgL\]

B)

\[\frac{1}{3}MgL\]

C)

\[\frac{1}{9}MgL\]

D)

\[\frac{1}{18}MgL\]

View Answer
21) In the arrangement shown in the figure for vertical oscillations of the mass \[m,\]the period is:

A)

\[T=2\pi \sqrt{\frac{m}{{{k}_{1}}+{{k}_{2}}}}\]

B)

\[T=2\pi \sqrt{\frac{{{k}_{1}}+{{k}_{2}}}{m}}\]

C)

\[T=2\pi \sqrt{\frac{m({{k}_{1}}+{{k}_{2}})}{{{k}_{1}}+{{k}_{2}}}}\]

D)

\[T=2\pi \sqrt{\frac{mg}{{{k}_{1}}+{{k}_{2}}}}\]

View Answer
22) A person completes half of its journey with speed\[{{v}_{1}}\]and rest half with speed \[{{v}_{2}}.\]The average speed of the person is:

A)

\[v=\frac{1}{2}({{v}_{1}}+{{v}_{2}})\]

B)

\[v=\frac{2{{v}_{1}}{{v}_{2}}}{{{v}_{1}}+{{v}_{2}}}\]

C)

\[v=\frac{{{v}_{1}}{{v}_{2}}}{{{v}_{1}}+{{v}_{2}}}\]

D)

\[v=\sqrt{{{v}_{1}}{{v}_{2}}}\]

View Answer
23) A particle moves along a straight line such that its displacement at any time t is given by \[s={{t}^{3}}-3{{t}^{2}}+2m.\]The displacement when the acceleration bec6mes zero is:

A)

zero

B)

2 m

C)

3m

D)

-2m

View Answer
24) \[[M{{L}^{2}}{{T}^{-3}}]\]represents the dimensions of:

A)

pressure

B)

energy

C)

power

D)

force

View Answer
25) The time period of a simple pendulum in a lift descending with constant acceleration g is:

A)

\[T=2\pi \sqrt{\frac{l}{8}}\]

B)

\[T=2\pi \sqrt{\frac{l}{2g}}\]

C)

zero

D)

infinite

View Answer
26) A transverse wave is given by \[y=A\sin 2\pi \left( \frac{t}{T}-\frac{x}{\lambda } \right).\] The maximum particle velocity is equal to 4 times the wave velocity, when:

A)

\[\lambda =2\pi \,A\]

B)

\[\lambda =\frac{1}{2}\pi A\]

C)

\[\lambda =\pi A\]

D)

\[\lambda =\frac{1}{4}\pi A\]

View Answer
27) A tuning fork gives 4 beats with 50 cm length of a sonometer wire. If the length of the wire is shortened by I cm the number of beats is still the same. The frequency of the fork is:

A)

396 Hz

B)

400 Hz

C)

404 Hz

D)

384 Hz

View Answer
28) Electron volt is a unit of:

A)

potential

B)

charge

C)

power

D)

energy

View Answer
29) Light of frequency,\[v\]is incident on a certain photoelectric substance with threshold frequency\[{{v}_{0}}.\]The work function for the substance is:

A)

\[hv\]

B)

\[h{{v}_{0}}\]

C)

\[h(v-{{v}_{0}})\]

D)

\[h(v+{{v}_{0}})\]

View Answer
30) For principal quantum number\[n=3,\]the possible values of orbital quantum number \[l\]are:

A)

1, 2, 3

B)

0, 1, 2, 3

C)

0, 1, 2

D)

\[-1,0,+1\]

View Answer
31) Certain radioactive substance reduces to 25% of its value in 16 days. Its half-life is:

A)

32 days

B)

8 days

C)

64 days

D)

28 days

View Answer
32) Penetrating power of X-rays does not depend on:

A)

wavelength

B)

energy

C)

potential difference

D)

current in the filament

View Answer
33) The ratio of resistance for forward to reverse bias of \[p-n\]junction is:

A)

\[{{10}^{2}}:1\]

B)

\[{{10}^{-2}}:1\]

C)

\[1:{{10}^{-4}}\]

D)

\[1:{{10}^{4}}\]

View Answer
34) If a current flows through an infinitely long straight wire, the magnetic field produced at a point 1m away from it, is:

A)

\[2\times {{10}^{-3}}T\]

B)

\[2\times {{10}^{-1}}T\]

C)

\[2\times {{10}^{-1}}T\]

D)

\[2\pi \times {{10}^{-6}}T\]

View Answer
35) Two circular discs A and B with equal radii are blackened. They are heated to same temperature and are cooled under identical conditions. What inference do you draw from their cooling curves?

A)

A and B have same specific heats

B)

Specific heat of A is less

C)

Specific heat of B is less

D)

Nothing can be said

View Answer
36) When a charged particle, travelling with unifrom speed enters a uniform magnetic field perpendicularly then. Its kinetic energy:

A)

remains constant

B)

increases

C)

decreases

D)

becomes zero

View Answer
37) A circular coil of radius 4 cm and number of turns 20 carries a current of 3 A. It is placed in a magnetic field of 0.5 T. The magnetic dipole moment of the coil is:

A)

\[\text{0}\text{.60 A}{{\text{m}}^{\text{2}}}\]

B)

\[~0.45\text{ A}{{\text{m}}^{2}}\]

C)

\[\text{ }\!\!~\!\!\text{ 0}\text{.30 A}{{\text{m}}^{\text{2}}}\]

D)

\[~0.15A{{m}^{2}}\]

View Answer
38) In a circuit 5% of total current passes through a galvanometer.   If   resistance   of   the galvanometer is G, then value of the shunt is:

A)

19 G

B)

20 G

C)

G/20

D)

G/19

View Answer
39) In a moving coil galvanometer, deflection \[\text{o }\!\!|\!\!\text{ }\] and current I flowing through it are related by:

A)

\[I\propto \tan \text{o }\!\!|\!\!\text{ }\]

B)

\[I\propto \text{o }\!\!|\!\!\text{ }\]

C)

\[I\propto \text{o}{{\text{ }\!\!|\!\!\text{ }}^{2}}\]

D)

\[I\propto 1/\text{o }\!\!|\!\!\text{ }\]

View Answer
40) A solenoid of length\[l\]metre has self-inductance L henry. If number of turns are doubled, its self inductance:

A)

remains same

B)

becomes 2 L henry

C)

becomes 4 L henry

D)

becomes\[\frac{L}{\sqrt{2}}\] henry

View Answer
41) The voltage of an AC supply varies with time (t) as \[V=120\sin 100\,\pi t\,\cos 100\,\pi t.\]The maximum voltage and frequency respectively are:

A)

\[120V,\text{ }100\text{ }Hz\]

B)

\[120/\sqrt{2}\,V,100\,Hz\]

C)

\[60\,V,\,200\,Hz\]

D)

\[60\,V,\,100\,Hz\]

View Answer
42) Two point charges of\[+\,3\mu C\] and \[-\,3\mu C\]are at a distance \[2\times {{10}^{-3}}\,m\]apart from each other. The electric field at a distance of 0.6 m from the dipole in broadside-on position is:

A)

\[150\,N{{C}^{-1}}\]

B)

\[250\,N{{C}^{-1}}\]

C)

\[60\,N{{C}^{-1}}\]

D)

\[35\,N{{C}^{-1}}\]

View Answer
43) Two parallel large thin metal sheets have equal surface charge densities \[(\sigma =26.4\times {{10}^{-12}}C/{{m}^{2}})\]of opposite signs. The electric field between these sheets is:

A)

\[1.5\,N/C\]

B)

\[1.5\times {{10}^{-10}}N/C\]

C)

\[3\,N/C\]

D)

\[3\times {{10}^{-10}}N/C\]

View Answer
44) N identical spherical drops are charged to the same potential V. They combine to form a bigger drop. The potential of the big drop will be:

A)

\[V{{N}^{1/3}}\]

B)

\[V{{N}^{2/3}}\]

C)

\[V\]

D)

\[VN\]

View Answer
45) Three condensers of capacitance 2uF each are connected in series. The resultant capacitance is:

A)

\[6\mu F\]

B)

\[3/2\,\mu F\]

C)

\[2/3\,\mu F\]

D)

\[5\,\mu F\]

View Answer
46) Two electric bulbs rated \[{{P}_{1}}\]watt, V volt and \[{{P}_{2}}\]watt, V volt are connected in parallel and V volt supply is applied to them. The total power will be:

A)

\[{{P}_{1}}+{{P}_{2}}\]

B)

\[\sqrt{{{P}_{1}}{{P}_{2}}}\]

C)

\[\frac{{{P}_{1}}{{P}_{2}}}{{{P}_{1}}+{{P}_{2}}}\]

D)

\[\frac{{{P}_{1}}+{{P}_{2}}}{{{P}_{1}}{{P}_{2}}}\]

View Answer
47) A hole is in the bottom of the tank having water. If total pressure at the bottom is 3 atm (\[(1\,atm={{10}^{5}}\,N{{m}^{-2}}),\]1 then velocity of water flowing from hole is:

A)

\[\sqrt{400}\,m{{s}^{-1}}\]

B)

\[\sqrt{600}\,m{{s}^{-1}}\]

C)

\[\sqrt{60}\,m{{s}^{-1}}\]

D)

\[\sqrt{40}\,m{{s}^{-1}}\]

View Answer
48) A fluid of volume 1 L is subjected to a pressure change of \[{{10}^{7}}N/{{m}^{2}}.\] As a result its volume changes by \[0.4\,c{{m}^{3}}.\] The bulk modulus of the fluid is:

A)

\[2.5\times {{10}^{10}}\,N/{{m}^{2}}\]

B)

\[2.5\times {{10}^{11}}\,N/{{m}^{2}}\]

C)

\[2.5\times {{10}^{9}}\,N/{{m}^{2}}\]

D)

\[2.5\times {{10}^{15}}\,N/{{m}^{2}}\]

View Answer
49) Stationary waves are so called because in them:

A)

the particles of the medium are not disturbed at all

B)

the particles of the medium do not execute SHM

C)

Particles do not correspond flow of energy along the wire

D)

the interference effect cannot be observed

View Answer
50) If the degrees of freedom of the molecules of a gas are n, the ratio of its two specific heats \[({{C}_{P}}+{{C}_{V}})\]will be:

A)

\[1+\frac{2}{n}\]

B)

\[1-\frac{2}{n}\]

C)

\[1+\frac{1}{n}\]

D)

\[2-\frac{1}{n}\]

View Answer
51) In a radioactive decay:

A)

\[\alpha \] then\[\beta \] and then\[\gamma \]emitted

B)

\[\alpha \] or \[\beta \] and then\[\gamma \]emitted

C)

\[\alpha \]and\[\beta \] and \[\gamma \]emitted simultaneously

D)

\[\alpha \]and\[\beta \]emitted simultaneously

View Answer
52) The work function of a metal is 1 eV. If\[\text{3000}\,\overset{\text{o}}{\mathop{\text{A}}}\,\] wavelength light is incident, the value of stopping voltage is:

A)

1V

B)

\[\text{3}\text{.75}\,\text{V}\]

C)

3.2 V

D)

0.75 V

View Answer
53) Equation for a real gas is \[\left( P+\frac{a}{{{V}^{2}}} \right)(V-b)=RT\] Where\[P=\]pressure, \[V=\]volume, a, b and R constants, dimensional formula of a is:

A)

\[{{L}^{6}}\]

B)

\[{{M}^{1}}{{L}^{-1}}{{T}^{-2}}\]

C)

\[{{M}^{1}}{{L}^{5}}{{T}^{-2}}\]

D)

\[{{L}^{3}}\]

View Answer
54) A monoatomic ideal gas is compressed to its 1/8 volume adiabatically at \[17{{\,}^{o}}C.\] Temperature after compression will tie:

A)

\[34{{\,}^{o}}C\]

B)

\[17{{\,}^{o}}C\]

C)

\[136{{\,}^{o}}C\]

D)

\[887{{\,}^{o}}C\]

View Answer
55) Which quantity remains constant in adiabatic process?

A)

Work

B)

Heat

C)

Temperature

D)

All of these

View Answer
56) Which formula is incorrect for root mea square velocity?

A)

\[\sqrt{\frac{2RT}{M}}\]

B)

\[\sqrt{\frac{3PV}{M}}\]

C)

\[\sqrt{\frac{3d}{P}}\]

D)

\[\sqrt{\frac{2KE}{M}}\]

View Answer
57) If the number of molecules of hydrogen is double to that of oxygen, at the same temperature, the ratio of their average KE pa molecule is:

A)

\[1:1\]

B)

\[2:3\]

C)

\[1:2\]

D)

\[1:4\]

View Answer
58) A liquid boils at that temperature at which the pressure of saturated vapour is:

A)

more than atmospheric pressure

B)

double to atmospheric pressure

C)

equal to atmospheric pressure

D)

less than atmospheric pressure

View Answer
59) What is the value of \[\frac{PV}{T}\] for a 1 mote of gas?

A)

\[4.2\times {{10}^{7}}cal/K\]

B)

\[4.2\,cal/K\]

C)

\[8.31\,cal/K\]

D)

\[2\,cal/K\]

View Answer
60) If a proton totally converts into energy, the value of energy will be:

A)

190 MeV

B)

931 MeV

C)

93.1 MeV

D)

931 J

View Answer
61) Experimental verification of matter waves was done by:

A)

de-Broglie

B)

Rutherford

C)

Bohr

D)

Davisson and Germer

View Answer
62) In the following nuclear reaction \[_{2}H{{e}^{3}}+{{\,}_{Z}}{{X}^{a}}\xrightarrow{{}}{{\,}_{Z+1}}{{Y}^{a+2}}+Q.\]What is Q?

A)

Neutron

B)

Proton

C)

Positron

D)

Electron

View Answer
63) For the reaction \[{{\,}_{1}}{{H}^{2}}+{{\,}_{1}}{{H}^{2}}\xrightarrow{{}}{{\,}_{2}}H{{e}^{4}}+v+\text{Energy,}\] what is the required condition?

A)

High temperature and pressure

B)

High temperature and low pressure

C)

Low temperature and high pressure

D)

High temperature only

View Answer
64) Work function of photoelectric metal is 3.13 eV. Threshold frequency is:

A)

\[4\times {{10}^{11}}\,Hz\]

B)

\[5\times {{10}^{14}}\,Hz\]

C)

\[8\times {{10}^{15}}\,Hz\]

D)

\[8\times {{10}^{10}}\,Hz\]

View Answer
65) Nitro group of nitrobenzene is:

A)

\[o-\]directing

B)

\[m-\] direcdng

C)

\[p-\]directing

D)

o, and p directing

View Answer
66) In which compound the number of 3° carbon is maximum:

A)

2, 5 dimethyl hexane

B)

2, 3, 4-trimethyl pentane

C)

2, 2, 4, 4-tetramethyl pentane

D)

2, 2, 3, trimethyl pentane

View Answer
67) The pH of a solution of concentration few less than 1 N NaOH:

A)

between 13 and 14

B)

between 12 and 13

C)

between 0 and 1

D)

between 1 and 2

View Answer
68) Dichlorocarbene is:

A)

a neutral divalent species

B)

a carbonation

C)

a carbanion

D)

a free radical

View Answer
69) The geometry of the hybrid orbital, which contains 20% s-character is:

A)

octahedral

B)

tetrahedral

C)

trigonal bipyramidal

D)

square planar

View Answer
70) Which test is not ideal to distinguish 2-butanol and 1-propanol?

A)

Hydrogenation

B)

lodoform test

C)

Lucas test

D)

Oxidation test

View Answer
71) In the reaction of\[C{{H}_{2}}=C{{H}_{2}}\]and HBr initial addition occurs of:

A)

indefinite

B)

\[{{H}^{+}}+B{{r}^{-}}\]both at one time

C)

\[{{H}^{+}}\]

D)

\[B{{r}^{-}}\]

View Answer
72) The hydrocarbon formed by electrolysis of sodium propionate:

A)

\[C{{H}_{3}}CH=C{{H}_{2}}\]

B)

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

C)

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

D)

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

View Answer
73) 0.1M\[C{{H}_{3}}COOH\]is 1.3% ionised. The dissociation constant of it will be:

A)

\[1.69\times {{10}^{-5}}\]

B)

\[1.69\times {{10}^{-6}}\]

C)

\[1.69\times {{10}^{-4}}\]

D)

none of these

View Answer
74) Which of the following give dye test?

A)

Aniline

B)

Methylamine

C)

Diphenylamine

D)

Ethylamine

View Answer
75) When ethanamide is heated with NaOH and \[B{{r}_{2}}\]the compound formed is:

A)

\[C{{H}_{3}}CON{{H}_{2}}\]

B)

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

C)

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

D)

\[C{{H}_{3}}N{{H}_{2}}\]

View Answer
76) The chemical formula of potash alum is \[{{K}_{2}}S{{O}_{4}}.A{{l}_{2}}{{(S{{O}_{4}})}_{3}}x{{H}_{2}}O,\]here \[x\] is:

A)

7

B)

12

C)

6

D)

24

View Answer
77) Brass is an alloy of:

A)

\[Cu+Zn+Fe\]

B)

\[Cu+Zn+Ni\]

C)

\[Cu+Zn+Sn\]

D)

\[Cu+Zn\]

View Answer
78) The electronic configuration of \[F{{e}_{26}}\]is [Ar]:

A)

\[~3{{d}^{8}}4{{s}^{2}}\]

B)

\[~3{{d}^{7}}\text{ }4{{s}^{2}}\]

C)

\[~3{{d}^{6}}4{{s}^{2}}\]

D)

\[~3{{d}^{5}}4{{s}^{2}}\]

View Answer
79) The rate constant of forward reaction is \[2.38\times {{10}^{-4}}\]and the rate constant of backward reaction is \[4.76\times {{10}^{-5}}.\] The equilibrium constant for the reaction will be:

A)

5

B)

\[5\times {{10}^{-2}}\]

C)

\[2\times {{10}^{-4}}\]

D)

none of these

View Answer
80) The element with electronic configuration \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}3{{p}^{6}},4{{s}^{2}}\]shows same property as:

A)

Mo

B)

Rb

C)

Ca

D)

Sr

View Answer
81) How much volume of 0.4 M NaOH is required to neutralise completely 200 mL \[\text{0}\text{.5}\,\text{M}\,{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]solution?

A)

600 mL

B)

300 mL

C)

500 mL

D)

200 Ml

View Answer
82) The formula of acetaldehyde semicarbazone:

A)

\[C{{H}_{3}}-CH=NNHCONHC{{H}_{3}}\]

B)

\[C{{H}_{3}}-CH=N-OH\]

C)

\[C{{H}_{3}}CH=N-NHCON{{H}_{2}}\]

D)

\[C{{H}_{3}}-CH=N-NHCONH-CON{{H}_{2}}\]

View Answer
83) One compound reacts with chloroform in presence of KOH and produces a bad smell (nause odour) compound. The compound formed is:

A)

\[C{{H}_{3}}C{{H}_{2}}N{{H}_{2}}\]

B)

\[{{C}_{6}}{{H}_{5}}CN\]

C)

\[C{{H}_{3}}C{{H}_{2}}NC\]

D)

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

View Answer
84) Phenol, chloroform and caustic potash are heated. The compound formed is:

A)

salicylic acid

B)

\[p-\] hydroxy benzaldehyde

C)

\[m-\] hydroxy benzaldehyde

D)

salicylaldehyde

View Answer
85) \[A+NaOH\xrightarrow{{}}C{{H}_{3}}OH+HCOONa\]is the reaction, compound A is:

A)

HCN

B)

HCHO

C)

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

D)

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

View Answer
86) The compound obtained by the reaction of acetic anhydride and ammonia is:

A)

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

B)

\[~C{{H}_{3}}CN\]

C)

\[~C{{H}_{3}}CONHC{{H}_{3}}\]

D)

\[~C{{H}_{3}}CON{{H}_{2}}\]

View Answer
87) Metal which does not react with aqueous solution of copper sulphate is:

A)

Pb

B)

Ag

C)

Zn

D)

Fe

View Answer
88) When aniline react with acetic anhydride the product formed is:

A)

\[p-\]aminobenzoic acid

B)

\[m-\]aminobenzoic acid

C)

acetanilide

D)

\[o-\]aminobenzoic acid

View Answer
89) \[5SO_{2}^{-}+2MnO_{4}^{-}+6{{H}^{+}}\xrightarrow{{}}5SO_{4}^{2-}\]\[+\,2M{{n}^{2+}}+2{{H}_{2}}O\] the oxidation number of Mn changes from:

A)

\[+\,14\,\text{to}+4\]

B)

\[+\,6\,\text{to}+2\]

C)

\[-7\,\text{to}-2\]

D)

\[+7\,\text{to}+2\]

View Answer
90) Which has highest ionisation potential?

A)

N

B)

O

C)

\[{{O}^{+}}\]

D)

Na

View Answer
91) Formic acid and acetic acid may be distinguished by the reaction with:

A)

sodium

B)

2, 4-dinitrophenyl hydrazine

C)

litmus paper

D)

Tollens reagent

View Answer
92) Maximum melting point is of:

A)

\[~MgC{{l}_{2}}\]

B)

\[~BaC{{l}_{2}}~\]

C)

\[~CaC{{l}_{2}}\]

D)

\[~BeC{{l}_{2}}\]

View Answer
93) The process requiring the absorption of energy is:

A)

\[F\xrightarrow{{}}{{F}^{-}}\]

B)

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

C)

\[O\xrightarrow{{}}{{O}^{2-}}\]

D)

\[H\xrightarrow{{}}{{H}^{-}}\]

View Answer
94) The number of coordinate bond in a molecule of \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\text{:}\]

A)

4

B)

3

C)

2

D)

1

View Answer
95) Camallite is:

A)

\[KCl\]

B)

\[LiAl{{(Si{{O}_{3}})}_{2}}\]

C)

\[MgC{{l}_{2}}.6{{H}_{2}}O\]

D)

\[KCl.MgC{{l}_{2}}.6{{H}_{2}}O\]

View Answer
96) A piece of magnesium ribbon was heated to redness in an atmosphere of nitrogen and on cooling water was added. The gas evolved was:

A)

ammonia

B)

hydrogen

C)

nitrogen

D)

oxygen

View Answer
97) Which of the following halides is least stable and doubtful existence?

A)

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

B)

\[Sn{{l}_{4}}\]

C)

\[Ge{{l}_{4}}\]

D)

\[Pb{{l}_{4}}\]

View Answer
98) Lithopone is a mixture of:

A)

\[ZnS\]and \[{{K}_{2}}S{{O}_{4}}\]

B)

\[CaC{{l}_{2}}\]and \[C{{a}_{3}}{{F}_{2}}\]

C)

\[Ca{{C}_{2}}\]and \[C{{a}_{3}}{{N}_{2}}\]

D)

\[ZnS+BaS{{O}_{4}}\]

View Answer
99) Iodine is liberated from KI solution when treated with:

A)

\[ZnS{{O}_{4}}\]

B)

\[CuS{{O}_{4}}\]

C)

\[NiS{{O}_{4}}\]

D)

\[FeS{{O}_{4}}\]

View Answer
100) Chlorine acts as a bleaching agent only in the presence of:

A)

dry air

B)

sun light

C)

moisture

D)

pure oxygen

View Answer
101) Photoperiodic response of red and far-red wavelength is mediated by:

A)

phytochrome

B)

cytochrome

C)

ferredoxin

D)

plastocyanin

View Answer
102) Tissue that contains fat globules is known as:

A)

duraepithelium

B)

adipose tissue

C)

nepiepithelium

D)

none of these

View Answer
103) Which of the following inactivates the enzyme by changing its shape?

A)

Competitive inhibitor

B)

Allosteric enzyme

C)

Co-enzyme

D)

All of the above

View Answer
104) Freshly hatched larva of housefly is called :

A)

caterpillar

B)

maggot

C)

nymph

D)

grub

View Answer
105) In human foetus, the heart begins to beat at developmental age of:

A)

4th week

B)

3rd week

C)

6th week

D)

8th week

View Answer
106) Enzymes that catalyse endergonic synthesis, coupled with exergonic hydrolysis of ATP are:

A)

ligases

B)

isomerase

C)

lyases

D)

transferases

View Answer
107) Gas exchange in the gills of a teleost fish is enhanced by having the blood flow in direction opposite to the direction of water flow, a process known as:

A)

counter current exchange

B)

ventilation

C)

facilitated diffusion

D)

active respiration

View Answer
108) Parkinsons disease is associated with:

A)

midbrain

B)

thalamus

C)

hypbthalamus

D)

cerebrum

View Answer
109) The branch of science dealing with the study of congenitally deformed foetus is called:

A)

teratology

B)

gerontology

C)

nidology

D)

none of the above

View Answer
110) Sub-kingdom-Parazoa includes:

A)

Protozoa

B)

Porifera

C)

Metazoa

D)

None of these

View Answer
111) Tears contain which enzyme that act as antiseptic:

A)

muramidase

B)

zymozyme

C)

phagozyme

D)

none of these

View Answer
112) Organisms that are unable to tolerate wide variations of salt concentrations in the environment are termed:

A)

stenohaline

B)

euryhaline

C)

enohaline

D)

none of these

View Answer
113) Non-essential amino acids, are synthesized in the human body during:

A)

protein catabolism

B)

protein anabolism

C)

both [a] and [b]

D)

none of the above

View Answer
114) Sharpeys perforating fibres are related with:

A)

contraction of muscles

B)

relaxation of muscles

C)

fixing of teeth

D)

none of the above

View Answer
115) Free martin is an example of:

A)

hormonal controlled unlike sexed twins

B)

sex reversal by gene

C)

environmental control of sex

D)

none of the above

View Answer
116) Which of the following curve shows, how oxygen is loaded and unloaded due to partial pressure?

A)

\[{{\text{O}}_{\text{2}}}\]curve

B)

\[C{{O}_{2}}\] curve

C)

Bohrs curve

D)

\[{{\text{O}}_{\text{2}}}\] dissociation curve

View Answer
117) The polio virus enters the human body through:

A)

mosquito bite

B)

tick bite

C)

saliva and secretions from the nose

D)

contaminated food and water

View Answer
118) When there is no change in muscle length during contraction, it is called:

A)

isometric

B)

isotonic

C)

isostasis

D)

refractory period

View Answer
119) Which of the following organ has papillary muscles?

A)

Eyes

B)

Brain

C)

Heart

D)

Mammary glands

View Answer
120) The external and internal parts of cerebrospinal fluid are connected through The roof of:

A)

epithalamus

B)

filum terminate

C)

cerebral ventricles

D)

medula oblongata

View Answer
121) Vasopressin influences:

A)

electrolyte efflux

B)

nerve excitability

C)

water reabsorption

D)

all of the above

View Answer
122) Widal test is performed for:

A)

malarial fever

B)

cholera

C)

typhoid fever

D)

dengue fever

View Answer
123) Pheromones when secreted upon the skin surface, its odour generally affects:

A)

skin colour

B)

genitalia

C)

breast

D)

mutual behaviour of members of a species

View Answer
124) Which response Amoeba shows towards current of water?

A)

Galvanotaxis

B)

Rheotaxis

C)

Geotaxis

D)

Thigmotaxis

View Answer
125) When more than one species of Plasmodium infect a person, it is called:

A)

quartan malaria

B)

tertian malaria

C)

aestivo- autumnal malaria

D)

quotidian malaria

View Answer
126) In which species of Paramecium, autogamy is found?

A)

Paramecium caudatum

B)

Paramecium Aurelia

C)

Paramecium furs aria

D)

All of the above

View Answer
127) Coats disease is related with:

A)

eye

B)

liver

C)

brain

D)

pancreas

View Answer
128) The study of the energy transfer and relationships between all living organisms is known as:

A)

thermodynamics

B)

bioenergetics

C)

kinetic energy

D)

potential energy

View Answer
129) The infective stage ofFasciola hepatica to sheep is

A)

sporocyst

B)

cercaria

C)

metacercaria

D)

hexacanth

View Answer
130) Which of the following algae shows physiological anisogamy?

A)

Spirogyra

B)

Ulothrix

C)

Volvox

D)

All of these

View Answer
131) Rate of mutation is affected by:

A)

temperature

B)

X-rays

C)

gamma and beta radiations

D)

all of the above

View Answer
132) A parenchymatous cell which stores ergostic materials or waste substance is:

A)

idioblast

B)

phragmoblast

C)

blastomere

D)

none of these

View Answer
133) Which of the following is applied for the biological control of cotton scale insect pest?

A)

Rhodalia cardinalis

B)

Aleurolobus burodensis

C)

Pectinophora gossypila

D)

Both [a] and [b]

View Answer
134) Which of the following is not a characteristics of the anatomy of dicotyledonous roots?

A)

Presence of little pith or absent

B)

Radial vascular bundles

C)

Presence of 15-20 vascular bundles

D)

Secondary growth

View Answer
135) The number of male prothallial cells in Selaginella plant is:

A)

one

B)

two

C)

twelve

D)

numerous

View Answer
136) Yeast is different from Penicillium and Rhizopus in being:

A)

acellular

B)

unicellular

C)

having unseptate hyphae

D)

multicellular

View Answer
137) In the \[{{\text{F}}_{\text{2}}}\]generation, genotypic and phenotypic ratios are identical in case of:

A)

complementary genes

B)

Mendelian dihybrids

C)

Mendelian monohybrids

D)

incomplete dominance

View Answer
138) In Funaria, the number of peristomial teeth is:

A)

8

B)

16

C)

32

D)

64

View Answer
139) The niche of a population is the:

A)

set of conditions that interacts

B)

place where it lives

C)

set of conditions and resources it uses

D)

geographical area that it covers

View Answer
140) Periblem is gives rise to:

A)

epidermis

B)

cortex

C)

pericycle

D)

pith

View Answer
141) A test-cross distinguishes between:

A)

a homozygous dominant and the heterozygous form

B)

a homozygous recessive and the heterozygous form

C)

two homozygous form

D)

two heterozygous form

View Answer
142) According to modern colloidal theory, the protoplasm is a polyphasic colloidal system. This was first suggested by:

A)

Purkinje

B)

Max Schultz

C)

R.A. Fisher

D)

E. Strasburger

View Answer
143) The scientific name of oyster mushroom, an edible fungus is:

A)

Tolyposporium penicillarie

B)

Colletotrichum falcatum

C)

Pleurotus osteratus

D)

Citromyces purpurogenum

View Answer
144) Verticillaster inflorescence is the characteristic of family:

A)

Cucurbitaceae

B)

Rubiaceae

C)

Labiatae

D)

Asteraceae

View Answer
145) In cyathium inflorescence, the ratio between male: female flower is:

A)

one : one

B)

one : many

C)

many : one

D)

many : many

View Answer
146) If a cell A with DPD 4 bars is connected to cell B, C, D whose Osmotic Pressure (OP) and Turgor Pressure (TP) are respectively 4 and 4, 10 and 5, 7 and 3 bars, the flow of water will be:

A)

B to A, C and D

B)

A and D to B and C

C)

C to A, B and D

D)

A to B, C and D

View Answer
147) Which one of the following is not a synthetic auxin?

A)

2, 4-D

B)

IBA

C)

IPA

D)

IAA

View Answer
148) The usual shape of growth curve is:

A)

sigmoid

B)

zig-zag

C)

linear

D)

inverted bell-shaped

View Answer
149) The beginning of plant cultivation is considered to be taken place in:

A)

Neolithic age

B)

Paleolithic age

C)

Mesolithic age

D)

None of these

View Answer
150) Which of the following groups is not comprised of sac-fungi?

A)

Yeasts

B)

Truffles

C)

Mushrooms

D)

Morels

View Answer

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