Solved papers for VMMC VMMC Medical Solved Paper-2006

VMMC Medical Solved Paper-2006 Total Questions - 200

1) A weight w is suspended from the midpoint of a rope, whose ends are at the same level. In order to make the rope perfectly horizontal, the force applied to each of its ends must be:

A)

less than w

B)

equal to w

C)

       equal to 2w

D)

       infinitely large

View Answer
2) The velocity of a particle at an instant is 10 m/s. After 3s its velocity will become 16 m/s. The velocity at 2 s, before the given instant will be:

A)

6 m/s

B)

4 m/s

C)

2 m/s

D)

       1 m/s

View Answer
3) A heavy stone hanging from a massless string of length 15 m is projected horizontally with speed 147 m/s. The speed of the particle at the point where the tension in the string equals the weight of the particle is?

A)

10 m/s

B)

7 m/s

C)

12 m/s

D)

       None of these

View Answer
4) When a body moves with constant speed in a circular path, then:

A)

work done will be zero

B)

acceleration will be zero

C)

no force acts on the body

D)

its velocity remains constant

View Answer
5) A body initially at rest is moving with uniform acceleration a Its velocity after n second is v. The displacement of the body in 2 s is

A)

\[\frac{2v(n-1)}{n}\]

B)

\[\frac{v(n-1)}{n}\]

C)

       \[\frac{v(n+1)}{n}\]

D)

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

View Answer
6) The magnetic force on a point charge is \[\vec{F}=q\,(\vec{v}\times \vec{B})\]Here, q = electric charge \[\vec{V}\] = velocity of point charge \[\vec{B}\] = magnetic field The dimensions of \[\vec{B}\] is

A)

\[\left[ ML{{T}^{-1}}A \right]\]

B)

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

C)

       \[\left[ M{{L}^{-2}}{{A}^{-1}} \right]\]

D)

       none of these

View Answer
7) The first diffraction minimum due to single slit diffraction is \[\theta \], for a light of wave-length 5000\[\overset{0}{\mathop{A}}\,\]. If the width of the slit is \[1\times {{10}^{-4}}\,cm,\] then the value of \[\theta \]is:

A)

\[30{}^\circ \]

B)

\[45{}^\circ \]

C)

\[60{}^\circ \]

D)

       \[15{}^\circ \]

View Answer
8) A stone of mass m tied to a string of length I is rotated in a circle with the other end of the string as the centre. The speed of the stone is v. If the string breaks, the stone will:

A)

move towards the centre

B)

move away from the centre

C)

move along tangent

D)

stop

View Answer
9) A body of mass 2 kg is placed on rough horizontal plane. The coefficient of friction between body and plane is 0.2. Then:

A)

body will move in forward direction if F = 5N

B)

body will move in backward direction with acceleration \[0.5\,\,m/{{s}^{2}},\] if force F = 3 N

C)

If F = 3 N, then body will be in rest condition

D)

both (a) and (c) are correct

View Answer
10) A particle moves with a velocity \[(5\mathbf{\hat{i}}-3\mathbf{\hat{j}}+6\mathbf{\hat{k}})\]m/s under the influence of a constant force \[\vec{F}=(10\mathbf{\hat{i}}+10\mathbf{\hat{j}}+12\mathbf{\hat{k}})\]N. The instantaneous power applied to the particle is:

A)

200 J/s

B)

40 J/s

C)

140 J/s

D)

       170 J/s

View Answer
11) The potential energy of a particle of mass 5 kg moving in the x - y plane is given by \[U=(-7x+24y)\,J,\,x\] and y being in metre. If the particle starts from rest from origin, then speed of particle at t = 2 s is:

A)

5 m/s

B)

14 m/s

C)

       17.5 m/s

D)

       10 m/s

View Answer
12) The ratio of radii of gyration of a circular disc and a circular ring of the same radii and same mass about a tangential axis in the plane is:

A)

1 : 2

B)

\[\sqrt{5}\,:\sqrt{6}\]

C)

       2 : 3

D)

       2 : 1

View Answer
13) A particle performs uniform circular motion with an angular momentum L. If the frequency of particle motion is doubled and its KE is halved, the angular momentum becomes:

A)

2 L

B)

4 L

C)

\[\frac{L}{2}\]

D)

       \[\frac{L}{4}\]

View Answer
14) The minimum energy required to launch a m kg satellite from earths surface in a circular orbit at an altitude of 2R, R is the radius of earth, will be:

A)

3 mgR

B)

\[\frac{5}{6}mgR\]

C)

       \[2mgR\]

D)

       none of these

View Answer
15) A satellite is moving on a circular path of radius r around the earth has a time period T. If its radius slightly increases by\[\Delta r\] the change in its time period is

A)

\[\frac{3}{2}\left( \frac{T}{r} \right)\Delta r\]

B)

\[\left( \frac{T}{r} \right)\Delta r\]

C)

       \[\frac{3}{2}\left( \frac{{{T}^{2}}}{{{r}^{2}}} \right)\Delta r\]

D)

       none of these

View Answer
16) A particle executes SHM, its time period is 16 s. If it passes through the centre of oscillation then its velocity is 2 m/s at time 2 s. The amplitude will be:

A)

7.2 m

B)

4 cm

C)

6 cm

D)

       0.72 m

View Answer
17) A simple harmonic oscillator has amplitude A, angular velocity\[\omega \], and mass m. Then average energy in one time period will be:

A)

\[\frac{1}{4}m{{\omega }^{2}}{{A}^{2}}\]

B)

\[\frac{1}{2}m{{\omega }^{2}}{{A}^{2}}\]

C)

       \[m{{\omega }^{2}}{{A}^{2}}\]

D)

       0

View Answer
18) The wave front due to infinity is:

A)

spherical

B)

cylindrical

C)

       planar

D)

       none of these

View Answer
19) An astronaut is approaching the moon. He sends out a radio signal of frequency 5000 MHz and the frequency of echo is different from that of the original frequency by 100 kHz. Hi velocity of approach with respect to the moon is:

A)

2 km/s

B)

3 km/s

C)

       4 km/s

D)

       5 km/s

View Answer
20) When a sphere is taken to bottom of sea 1 km deep, it contracts by 0.01%. The bulk modulus of elasticity of the material of sphere is :(Given : Density of water \[=1\,g/\,c{{m}^{3}}\])

A)

\[9.8\times {{10}^{10}}N/{{m}^{2}}\]

B)

\[10.2\times {{10}^{10}}N/{{m}^{2}}\]

C)

       \[0.98\times {{10}^{10}}N/{{m}^{2}}\]

D)

       \[8.4\times {{10}^{10}}N/{{m}^{2}}\]

View Answer
21) The temperature of \[{{H}_{2}}\] at which the rms velocity of its molecules is seven times the rms velocity of the molecules of nitrogen at 300 K is:

A)

2100 K

B)

1700 K

C)

       1350 K

D)

       1050 K

View Answer
22) Gas exerts pressure on the walls of the container because:

A)

gas has weight

B)

gas molecules have momentum

C)

gas molecules collide with each other

D)

gas molecules collide with the walls of the container

View Answer
23) The inside and outside temperatures of a refrigerator are 273 K and 303 K respectively. Assuming that refrigerator cycle is reversible, for every joule of work done, the heat delivered to the surrounding will be :

A)

10 J

B)

                       20 J

C)

30 J

D)

       50 J

View Answer
24) In an energy recycling process, X g of steam at \[100{}^\circ C\] becomes water at \[100{}^\circ C\] which converts Y g of ice at \[0{}^\circ C\] into water at \[100{}^\circ C\]. The ratio of X and Y will be:

A)

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

B)

                       \[\frac{2}{3}\]

C)

3

D)

       2

View Answer
25) The surface temperature of the sun is T K and the solar constant for a plate is S. The sun subtends an angle \[\theta \] at the planet. Then:

A)

\[S\propto {{T}^{4}}\]

B)

                       \[S\propto {{T}^{2}}\]

C)

\[S\propto {{\theta }^{2}}\]

D)

                       \[S\propto \theta \]

View Answer
26) A body at a temperature of \[728{}^\circ C\] and has surface area \[5\,\,c{{m}^{2}},\] radiates 300 J of energy each minute. The emissivity is : (Given : Boltzmann constant \[=5.67\,\times {{10}^{-8}}\,W\,{{m}^{2}}{{K}^{4}}\])

A)

e = 0.18

B)

       e = 0.02

C)

                       e = 0.2

D)

       e = 0.15

View Answer
27) If at NTP velocity of sound in a gas is 1150 m/s, then the rms velocity of gas molecules at NTP is : (Given : R = 8.3 J/mol/K, Cp = 4.8 cal/mol/K)

A)

1600 m/s

B)

       1532.19 m/s

C)

160 m/s

D)

       zero

View Answer
28) If \[\sigma =\]surface charge density, \[\varepsilon \]= electric permittivity, the dimensions of \[\frac{\sigma }{e}\] are same as:

A)

electric force

B)

electric field intensity

C)

pressure

D)

       electric charge

View Answer
29) For circuit the equivalent capacitance between P and Q is:

A)

6 C

B)

       4 C

C)

       \[\frac{3C}{2}\]

D)

       \[\frac{6C}{11}\]

View Answer
30) A wire has resistance \[12\Omega \]. It is bent in the form of a circle. The effective resistance between the two points on any diameter of the circle is:

A)

12\[\Omega \]

B)

       24\[\Omega \]

C)

60\[\Omega \]

D)

       3\[\Omega \]

View Answer
31) If two identical heaters each rated as (1000 W.220 V) are connected in parallel to 220 V, then the total power consumed is:

A)

200 W

B)

2500 W

C)

       250 W

D)

       2000 W

View Answer
32) In the given figure, the loop is fixed but straight wire can move. The straight wire will:

A)

remain stationary

B)

move towards the loop

C)

move away from the loop

D)

rotates about the axis

View Answer
33) At a point on the right bisector of a magnetic dipole, the magnetic :

A)

potential varies as \[\frac{1}{{{r}^{2}}}\]

B)

potential is zero at all points on the right bisector

C)

field varies as \[{{r}^{2}}\]

D)

field is perpendicular to the axis of dipole

View Answer
34) The couple acting on a magnet of length 10 cm and pole strength 15 Am, kept in a field of \[B=2\times {{10}^{-5}}\,T,\] at an angle of 30°, is:

A)

\[1.5\times {{10}^{-5}}Nm\]

B)

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

C)

\[1.5\times {{10}^{-2}}Nm\]

D)

       \[1.5\times {{10}^{-6}}Nm\]

View Answer
35) An AC is represented by e = 220 sin (100\[\pi \])t V and is applied over a resistance of 110\[\Omega \]. The heat produced in 7 min is:

A)

\[11\times {{10}^{3}}\,cal\]

B)

\[22\times {{10}^{3}}cal\]

C)

       \[33\times {{10}^{3}}cal\]

D)

                       \[25\times {{10}^{3}}cal\]

View Answer
36) The wave length of a radio wave of frequency of 1 MHz is:

A)

400 m

B)

                       300 m

C)

       350 m

D)

                       200 m

View Answer
37) The correct option, if speed of gamma rays, x-rays and micro waves are \[{{v}_{g}},\,{{v}_{x}}\] and \[{{v}_{m}}\] respectively will be:

A)

\[{{v}_{g}}>{{v}_{x}}>{{v}_{m}}\]

B)

\[{{v}_{g}}<{{v}_{x}}<{{v}_{m}}\]

C)

\[{{v}_{g}}>{{v}_{x}}>{{v}_{m}}\]

D)

\[{{v}_{g}}={{v}_{x}}={{v}_{m}}\]

View Answer
38) The electric field E and magnetic field B in electromagnetic waves are:

A)

parallel to each other

B)

inclined at an angle of 45°

C)

perpendicular to each other

D)

opposite to each other

View Answer
39) Considering normal incidence of ray, the equivalent refractive index of combination of two slabs shown in figure is:

A)

1.8

B)

                       1.43

C)

2

D)

       none of these

View Answer
40) In Youngs double slit experiment, the spacing between the slits is d and wavelength of light used is 6000\[\overset{0}{\mathop{A}}\,\]. If the angular width of a fringe formed on a distant screen is \[1{}^\circ \], then value of d is:

A)

1 mm

B)

       0.05 mm

C)

                       0.03 mm

D)

0.01 mm

View Answer
41) Polarization of light proves:

A)

corpuscular nature of light

B)

quantum nature of light

C)

transverse wave nature of light

D)

longitudinal wave nature of light

View Answer
42) Three particles having charges in the ratio of 2:3:5, produce the same point on the photographic film in Thomson experiment. Their masses are in the ratio of:

A)

2 : 3 : 5

B)

                       5 : 3 : 2

C)

       15 : 10 : 6

D)

       3 : 5 : 2

View Answer
43) In terms of Rydberg constant R, the wavenumber of the first Balmer line is:

A)

R

B)

                                       3R

C)

\[\frac{5R}{36}\]

D)

       \[\frac{8R}{9}\]

View Answer
44) In nuclear reaction \[_{2}H{{e}^{4}}{{+}_{z}}{{X}^{A}}{{\to }_{Z+2}}{{Y}^{A+3}}{{+}_{z}}{{M}^{A}}\] where, M denotes

A)

electron

B)

positron

C)

proton

D)

       neutron

View Answer
45) n-alpha particles per second are emitted from N atoms of a radioactive element. The half-life of radioactive element is:

A)

\[\frac{n}{N}s\]

B)

\[\frac{N}{n}s\]

C)

\[\frac{0.693N}{n}s\]

D)

\[\frac{0.693n}{N}s\]

View Answer
46) Assertion: If the ice on the polar caps of the earth melts, then length of day will increase. Reason: Moment of inertia of earth increases, as ice on polar caps melts.

A)

If both assertion and reason are true and reason is the correct explanation of assertion

B)

If both assertion and reason are true but reason is not the correct explanation of assertion

C)

If assertion is true but reason is false

D)

If both assertion and reason are false

View Answer
47) Assertion: Dielectric polarization means formation of positive and negative charges inside the dielectric. Reason: Free electrons are formed in this process.

A)

If both assertion and reason are true and reason is the correct explanation of assertion

B)

If both assertion and reason are true but reason is not the correct explanation of assertion

C)

If assertion is true but reason is false

D)

If both assertion and reason are false

View Answer
48) Assertion: When a magnet is brought near iron nails, only translatory force act on it. Reason: The field due to a magnet is generally uniform.

A)

If both assertion and reason are true and reason is the correct explanation of assertion

B)

If both assertion and reason are true but reason is not the correct explanation of assertion

C)

If assertion is true but reason is false

D)

If both assertion and reason are false

View Answer
49) Assertion: Static crashes are heard on radio, when lightning flash occurs in the sky. Reason: Electromagnetic waves having frequency of radio wave range, interfere with radio waves.

A)

If both assertion and reason are true and reason is the correct explanation of assertion

B)

If both assertion and reason are true but reason is not the correct explanation of assertion

C)

If assertion is true but reason is false

D)

If both assertion and reason are false

View Answer
50) Assertion: The satellites equipped with electronic devices are called active satellites. Reason: Passive satellite works as active satellite.

A)

If both assertion and reason are true and reason is the correct explanation of assertion

B)

If both assertion and reason are true but reason is not the correct explanation of assertion

C)

If assertion is true but reason is false

D)

If both assertion and reason are false

View Answer
51) Maximum entropy will be in which of the following?

A)

Ice

B)

Liquid water

C)

       Snow

D)

       Water vapors

View Answer
52) What is obtained when chlorine is passed in boiling toluene and product is hydrolyzed?

A)

o-cresol

B)

p-cresol

C)

2, 4-dihydroxy toluene

D)

Benzyl alcohol

View Answer
53) Which of the following has covalent bond?

A)

\[N{{a}_{2}}S\]

B)

       \[AlC{{l}_{3}}\]

C)

       \[NaH\]

D)

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

View Answer
54) Which of the following acts as an oxidising as well as reducing agent?

A)

\[N{{a}_{2}}O\]

B)

       \[N{{a}_{2}}{{O}_{2}}\]

C)

       \[NaN{{O}_{3}}\]

D)

       \[NaN{{O}_{2}}\]

View Answer
55) What is the oxidation state of P in \[Ba{{({{H}_{2}}P{{O}_{2}})}_{2}}\].

A)

+ 1

B)

       + 2

C)

+ 3

D)

       \[-1\]

View Answer
56) Which of the following molecules has pyramidal shape?

A)

\[PC{{l}_{3}}\]

B)

       \[S{{O}_{3}}\]

C)

\[CO_{3}^{2-}\]

D)

       \[NO_{3}^{-}\]

View Answer
57) Maximum number of hydrogen bonding in \[{{\text{H}}_{\text{2}}}\text{O}\] is :

A)

1

B)

                                       2

C)

       3

D)

       4

View Answer
58) Number of isomers possible for \[{{\text{C}}_{\text{4}}}{{\text{H}}_{\text{8}}}\text{O}\]is:

A)

3

B)

4

C)

5

D)

6

View Answer
59) \[{{C}_{6}}{{H}_{5}}-CH=CHCHO\xrightarrow{X}\]\[{{C}_{6}}{{H}_{5}}CH=CHC{{H}_{2}}OH\] In the above sequence X can be:

A)

\[{{H}_{2}}/Ni\]

B)

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

C)

       \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}/{{H}^{+}}\]

D)

       both and

View Answer
60) For a reaction \[{{\text{H}}_{\text{2}}}{{\text{I}}_{\text{2}}}\rightleftharpoons \text{2HI}\]at 721 K, the value of equilibrium constant is 50. If 0.5 mole each of \[{{\text{H}}_{\text{2}}}\]and \[{{\text{I}}_{2}}\] is added to the system, the value of equilibrium constant will be :

A)

40

B)

       60

C)

50

D)

       30

View Answer
61) Schottky defect generally appears in:

A)

\[\text{NaCl}\]

B)

       \[\text{KCl}\]

C)

\[\text{CsCl}\]

D)

       all of these

View Answer
62) The ability of a given substance to assume two or more crystalline structure is called:

A)

amorphism

B)

       isomorphism

C)

                       polymorphism

D)

       isomerism

View Answer
63) A cricket ball of 0.5 kg is moving with a velocity of 100 m/sec. The wavelength associated with its motion is :

A)

\[1/100\,cm\]

B)

\[6.6\times {{10}^{-34}}\,m\]

C)

\[1.32\,\times {{10}^{-35}}m\]

D)

\[6.6\times {{10}^{-28}}\,m\]

View Answer
64) Which among the following species have the same number of electrons in its outermost as well as penultimate shell?

A)

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

B)

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

C)

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

D)

       \[C{{a}^{2+}}\]

View Answer
65) \[{{}^{\text{o}}}\] of combustion of isobutylene is \[-x\,\text{kJ}\,\text{mo}{{\text{l}}^{-1}}\] The value of \[\Delta {{H}^{o}}\] is:

A)

\[=\Delta {{E}^{o}}\]

B)

       \[>\Delta {{E}^{o}}\]

C)

       \[=0\]

D)

       \[<\Delta {{E}^{o}}\]

View Answer
66) At \[\text{90}{{\,}^{\text{o}}}\text{C,}\] pure water has \[{{\text{H}}_{\text{3}}}{{\text{O}}^{\text{+}}}\] ion concentration of \[{{10}^{-6}}\,\text{mol/}{{\text{L}}^{-1}}.\] The \[{{\text{K}}_{\text{w}}}\] at \[\text{90}{{\,}^{\text{o}}}\text{C}\] is:

A)

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

B)

       \[{{10}^{-14}}\]

C)

       \[{{10}^{-12}}\]

D)

       \[{{10}^{-8}}\]

View Answer
67) A gas is found to have a formula \[{{[CO]}_{x}}.\] If its vapour density is 70, the value of \[x\] is :

A)

2.5

B)

       3.0

C)

       5.0

D)

       6.0

View Answer
68) Which of the following represents soap?

A)

\[\text{ }\!\!~\!\!\text{ }{{\text{C}}_{\text{17}}}{{\text{H}}_{\text{35}}}\text{COOK}\]

B)

       \[{{C}_{17}}{{H}_{35}}COOH\]

C)

       \[{{C}_{15}}{{H}_{31}}COOH\]

D)

       \[{{({{C}_{17}}{{H}_{35}}COO)}_{2}}Ca\]

View Answer
69) Aspirin is chemically:

A)

methyl benzoate

B)

       ethyl salicylate

C)

       ethyl salicylic acid

D)

       2-acetoxy benzoic acid

View Answer
70) Vitamin \[{{\text{B}}_{\text{6}}}\] is known as:

A)

pyridoxin

B)

                       thiamine

C)

       tocopherol

D)

       riboflavin

View Answer
71) Which of the following compounds is found abundantly in nature?

A)

Fructose

B)

                       Starch

C)

       Glucose

D)

       Cellulose

View Answer
72) Synthetic polymer which resembles natural rubber is:

A)

neoprene

B)

                       chloroprene

C)

       glyptal

D)

       nylon

View Answer
73) Which of the following is not a nitro-derivative?

A)

\[{{\text{C}}_{6}}{{H}_{5}}N{{O}_{2}}\]

B)

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

C)



D)

       \[{{C}_{6}}{{H}_{4}}(OH)N{{O}_{2}}\]

View Answer
74) The reduction of which of the following compound would yield secondary amine?

A)

Alkyl nitrile

B)

       Carbylamine

C)

       Primary amine

D)

       Secondary nitro compound

View Answer
75) Which of the aldehyde is most reactive?

A)

\[{{C}_{6}}{{H}_{5}}\text{ }\text{ }CHO\]

B)

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

C)

       \[HCHO\]

D)

       All are equally reactive

View Answer
76) Which of the following does not contain ?COOH group?

A)

Aspirin

B)

       Benzoic acid

C)

       Picric acid

D)

       All have ?COOH group

View Answer
77) Which of the following is dihydric alcohol?

A)

Glycerol

B)

       Ethylene glycol

C)

       Catechol

D)

       Resorcinol

View Answer
78) Ethyl alcohol is heated with conc. \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\text{.}\] The product formed is :

A)

\[C{{H}_{3}}-\overset{\text{O}}{\mathop{\overset{|\,|}{\mathop{C}}\,}}\,-O{{C}_{2}}{{H}_{5}}\]

B)

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

C)

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

D)

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

View Answer
79) In the first order reaction, the concentration of the reactants is reduced to 25% in one hour. The half life period of the reaction is:

A)

2hr

B)

       4hr

C)

       1/2 hr

D)

       1/4 hr

View Answer
80) For a reaction, \[X(g)\xrightarrow{{}}Y(g)+Z(g)\] the half life period is 10 min. In what period of time would the concentration of X be reduced to 10% of original concentration?

A)

20 min

B)

       33 min

C)

       15 min

D)

       25 min

View Answer
81) The molar freezing point constant for water is \[1.86{{\,}^{o}}\text{C/mol}\text{.}\] If 342 g of cane sugar \[({{C}_{12}}{{H}_{22}}{{O}_{11}})\] is dissolved in 1000 g of water, the solution will freeze at:

A)

\[-1.86{{\,}^{o}}C\]

B)

       \[1.86{{\,}^{o}}C\]

C)

       \[-3.92{{\,}^{o}}C\]

D)

       \[2.42{{\,}^{o}}C\]

View Answer
82) The movement of solvent molecules through a semi-permeable membrane is called :

A)

electrolysis

B)

       electrophoresis

C)

       osmosis

D)

       cataphoresis

View Answer
83) Which of the following is a primary halide?

A)

Isopropyl iodide

B)

       Secondary butyl iodide

C)

       Tertiary butyl bromide

D)

       Neo hexyl chloride

View Answer
84) A gas is found to have the formula \[{{\text{(CO)}}_{\text{n}}}\text{.}\] If its vapour density is 56, the value of n will be

A)

7

B)

       5

C)

       4

D)

       3

View Answer
85) Aromatisation of n-heptane by passing over \[(A{{l}_{2}}{{O}_{3}}+C{{r}_{2}}{{O}_{3}})\]catalyst at 773 K gives:

A)

benzene

B)

                   toluene

C)

       mixture of both

D)

       heptylene

View Answer
86) \[{{C}_{6}}{{H}_{5}}C{{H}_{3}}\xrightarrow{Cr{{O}_{2}}C{{l}_{2}}}Z\] In the given sequence Z is:

A)

benzaldehyde

B)

       toluic acid

C)

       phenyl acetic acid

D)

       benzoic acid

View Answer
87) Nitroethane can exhibit one of the following kind of isomerism:

A)

metamerism

B)

       optical activity

C)

       tautomerism

D)

       position isomerism

View Answer
88) A compound has three chiral carbon atoms. The number of possible optical isomers it can have :

A)

3

B)

       2

C)

       8

D)

       4

View Answer
89) \[4{{K}_{2}}C{{r}_{2}}{{O}_{7}}\xrightarrow{\text{heat}}4{{K}_{2}}Cr{{O}_{4}}+3{{O}_{2}}+X.\] In the above reaction X is:

A)

\[Cr{{O}_{3}}\]

B)

       \[C{{r}_{2}}{{O}_{7}}\]

C)

       \[C{{r}_{2}}{{O}_{3}}\]

D)

       \[Cr{{O}_{5}}\]

View Answer
90) The co-ordination number and oxidation number of X in the following compound \[[X(S{{O}_{4}}){{(N{{H}_{3}})}_{5}}]Cl\]will be:

A)

10 and 3

B)

       2 and 6

C)

       6 and 3

D)

       6 and 4

View Answer
91) In the electrolysis of water, one faraday of electrical energy would evolve :

A)

one mole of oxygen

B)

       one gram atom of oxygen

C)

       8 g of oxygen

D)

       22.4 Lot oxygen

View Answer
92) In which of these processes platinum is used as a catalyst?

A)

Oxidation of ammonia to form \[\text{HN}{{\text{O}}_{\text{3}}}\]

B)

       Hardening of oils

C)

       Production of synthetic rubber

D)

       Synthesis of methanol

View Answer
93) If the half-life of an isotope X is 10 years, its decay constant is :

A)

\[6.932y{{r}^{-1}}\]

B)

       \[0.6932\text{ }y{{r}^{-1}}\]

C)

       \[0.06932\text{ }y{{r}^{-1}}\]

D)

       \[0.006932\text{ }y{{r}^{-1}}\]

View Answer
94) On strong heating sodium bicarbonate changes into:

A)

sodium monoxide

B)

       sodium hydroxide

C)

       sodium carbonate

D)

       sodium peroxide

View Answer
95) Which of the following is not an ore of magnesium?

A)

Camallite

B)

       Magnesite

C)

       Dolomite

D)

       Gypsum

View Answer
96) Aluminium reacts with caustic soda to form:

A)

aluminium hydroxide

B)

       aluminium oxide

C)

       sodium meta-aluminate

D)

       sodium tetra aluminate

View Answer
97) In laboratory burners, we use:

A)

producer gas

B)

       oil gas

C)

       gobar gas

D)

       coal gas

View Answer
98) Iron is dropped in dil. \[\text{HN}{{\text{O}}_{\text{3}}}\text{,}\]it gives:

A)

ferric nitrate

B)

       ferric nitrate and \[\text{N}{{\text{O}}_{2}}\]

C)

       ferrous nitrate and ammonium nitrate

D)

       ferrous nitrate and nitric oxide

View Answer
99) When tin is treated with concentrated nitric acid:

A)

it is converted into stannous nitrate

B)

       it is converted into stannic nitrate

C)

       it is converted into metastannic acid

D)

       it becomes passive

View Answer
100) The chief impurity present in red bauxite is:

A)

\[Si{{O}_{2}}\]

B)

       \[F{{e}_{2}}{{O}_{3}}\]

C)

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

D)

       \[NaF\]

View Answer
101) Endosperm which is the common nutritive tissue for the developing embryo in angiosperm develops from:

A)

micropylar polar nucleus

B)

chalazal polar nucleus

C)

secondary nucleus

D)

zygote

View Answer
102) Bryophytes are dependent on water because:

A)

archegonium has to remain filled with water for fertilization

B)

water is essential for fertilization for their homosporous water

C)

water is essential for their vegetative propagation

D)

the sperms can easily reach upto egg in the archegonium

View Answer
103) The protective device over the developing sporophyte is shoot calyptra in:

A)

Frullania

B)

Sphagnum

C)

       Anthoceros

D)

       Pellia

View Answer
104) Which of the following is finally reabsorbed in distal convoluted tubule?

A)

Calcium

B)

Potassium

C)

Bicarbonate

D)

       Water

View Answer
105) Which one of the following is metabolic waste of protein metabolism ?

A)

Urea, ammonia and \[C{{O}_{2}}\]

B)

Urea, ammonia and creatinine

C)

Urea, ammonia and alanine

D)

Urea, nitrogen and \[{{O}_{2}}\]

View Answer
106) What is true of urea biosynthesis ?

A)

Uric acid is starting point

B)

Urea is synthesized in lysosomes

C)

Urea cycle enzymes are located inside mitochondria

D)

Urea is synthesized in kidney

View Answer
107) The posterior vena cava or interior vena cava:

A)

divides into the hepatic portal veins

B)

opens into the left auricle

C)

commences at the kidney

D)

begins at the hind end of abdomen

View Answer
108) Layers of cells that secrete enamel of tooth is:

A)

osteoblast

B)

ameloblast

C)

odontoblast

D)

       dontoblast

View Answer
109) Which one of the following is the correct sequence in the development of frog ?

A)

Clevage \[\to \] Morula \[\to \] Blastula\[\to \] Gastrula

B)

Gastrula \[\to \] Neurula\[\to \] Blastula\[\to \] Morula

C)

Morula \[\to \] Neurula \[\to \] Gastrula \[\to \] Blastula

D)

lastula \[\to \] Gastrula \[\to \]Neurula \[\to \] Morula

View Answer
110) During DNA replication, the strands separated by:

A)

DNA polymerase

B)

topoisomerase

C)

unwindase/helecase

D)

gyrase

View Answer
111) Presence of recessive trait is 16%. The frequency of dominant allele in population is:

A)

0.6

B)

0.32

C)

0.84

D)

       0.92

View Answer
112) Frequency of an autosomal lethal gene is 0 4. The frequency of carrier in a population or 200 indivedual is:

A)

72

B)

96

C)

104

D)

       36

View Answer
113) According to genic balance theory of Bridges X/A = 1.5 will make the individual:

A)

male

B)

female

C)

intersex

D)

super female

View Answer
114) Cuscuta which climbs up the support with help of loop formation around the support. This type of movement is called:

A)

nutation

B)

nastic movement

C)

hygroscopic movement

D)

none of the above

View Answer
115) Which of the following is a cultural characteristics of micro-organism?

A)

Nutritional requirement for growth

B)

Cell-shape

C)

Cell-size

D)

Cell structure

View Answer
116) The cells of the bacterium Streptococcus remain arranged in the form of:

A)

irregular cluster

B)

chain

C)

plate

D)

       cube

View Answer
117) Interferon suppresses the pathogenic activity of:

A)

viruses

B)

       bacteria

C)

protozoa

D)

       all of these

View Answer
118) A virus consist of:

A)

lipid coat (capsid), genes and ribosomes

B)

cell membrane and chromosome

C)

protein coat genes and mitochondria

D)

protein coat and nucleic acid molecules

View Answer
119) Many species of marine bacteria characteristically grow while attached to a solid suaface and are called as:

A)

periphytes

B)

epibacteria

C)

both (a) and (b)

D)

       none of these

View Answer
120) Which of the following is the speciality of \[\phi \times 174\,\] and M - 13 type of viruses?

A)

Single-stranded DNA

B)

Single-stranded RNA

C)

Double- stranded DNA

D)

Double-stranded RNA

View Answer
121) The site of respiration in bacteria is:

A)

microsome

B)

mesosomes

C)

episome

D)

       ribosome

View Answer
122) Choose the correct sequence during the formation of chemicals on early earth:

A)

ammonia, water, nucleic acid and proteins

B)

ammonia, proteins, carbohydrates and nucleic acid

C)

ammonia, nucleic acid, protein and carbohydrate

D)

protion, carbohydrate, water and nucleic acid

View Answer
123) Mutation theory to explain mechanism of evolution were given by Hugo de Vries and he experimented on :

A)

garden pea

B)

fruit fly

C)

       china rose

D)

       evening primrose

View Answer
124) Replica plating experiment was conducted by :

A)

Joshual Lederberg

B)

R.A. Fischer

C)

       Esther Lederberg

D)

       Both (a) and (c)

View Answer
125) Organism present at different places without any traces in between show :

A)

speciation

B)

discontinuous distribution

C)

punctiued Equilibuiun

D)

migration

View Answer
126) Who attempted to solve the mechanism of organic evolution for the first time ?

A)

Haeckal

B)

Hugo de Vries

C)

       Lamark

D)

       Darwin

View Answer
127) Some of the important evidences of organic evolution are:

A)

occurence of homologous and vestigial organs

B)

occurence of analogous and vestigial organs

C)

occurence of homologous and analogous organs

D)

occurence of analogous organs only

View Answer
128) Fossils of Archaeopteryx reveals that:

A)

reptiles were most evolved during Jurassic

B)

toothed birds originated from flying reptiles during Jurassic

C)

toothed birds originated during Jurassic

D)

toothed birds gave rise to primitive mammals

View Answer
129) Wasteland reclamation is best brought by:

A)

Prosopis

B)

       Acacia

C)

Leucaena

D)

       all of the above

View Answer
130) The average net primany productivity of which of these community is highest:

A)

tropical rain forest

B)

temperate deciduous forest

C)

rocky beaches and sandy beaches

D)

tundra

View Answer
131) An estuary acts as a nutrient trap because of the:

A)

action of rivers and tides

B)

depth at which photosynthesis can occur

C)

amount of rainfall received

D)

height of water table

View Answer
132) The force operating in an ecosystem which opposes the unchecked growth of population is:

A)

mortality

B)

biotic control

C)

       environmental resistance

D)

fecundity

View Answer
133) Out of the following given ecosystem which one is most recently discovered ecosystem :

A)

Tundra

B)

       Crater

C)

Ice bug

D)

       Vents

View Answer
134) Chapparal are evergreen broad leaved fire resistant drought evading scrub forests (Sclerophyllous plants with hard thick leaves) found in mediterenean area, Africa and Australia. These are characterized by:

A)

heavy rain in summer and winter dry

B)

rain throughout year and no bush fire

C)

limited rain in winter, summer dry and bush fire

D)

little rain in summer and bush fire

View Answer
135) In desert grasslands, which type of animals are relatively more abundant ?

A)

Diurnal

B)

       Nocturnal

C)

       Arboreal

D)

       Fossorial

View Answer
136) If 20 k cal energy is available at producer level then how much energy will be transfered to the lion in the food chain-producer \[\to \] deer \[\to \] lion ?

A)

0.2 J

B)

       0.02 J

C)

0.002 J

D)

       2 J

View Answer
137) Which of the following is pollutant as well as protectant?

A)

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

B)

       Ozone

C)

CFC

D)

       PAN

View Answer
138) If the dicot stem is stained for starch. The most intense colouration would develop in:

A)

epiblema

B)

       phloem

C)

       endodermis

D)

       pith

View Answer
139) The layer of parenchyma surrounding a vascular bundle is known as:

A)

bundle sheath

B)

       bundle shield

C)

       bundle parenchyma

D)

bundle fibre

View Answer
140) Although the seeds are rich in auxin glucosyl esters, still they do not exhibit any physiological change like growth. The reason is:

A)

they are prime examples of bound auxins

B)

they are example of bound auxins that are inactive untill IAA is released by enzymolysis

C)

that they are examples of free auxins

D)

none of the above

View Answer
141) The plant hormone used for inducing morphogeneces in plant tissue culture is:

A)

cytokinin

B)

       abscisic acid

C)

       gibberellin

D)

       ethylene

View Answer
142) The phytochemical ?quercetin? is found in which of the following ?

A)

grapes

B)

       apples

C)

guava

D)

       lemon

View Answer
143) Plants flower in response to a certain ratio of light to dark in a day, which reflects seasonal changes. This response is known as:

A)

verbalization

B)

       photoperiodism

C)

       photorespiration

D)

       photosynthesis

View Answer
144) A sleep movement is a mastic response that occurs daily in response to :

A)

dark

B)

       light

C)

both (a) and (b)

D)

       none of these

View Answer
145) Sedoheptulose 7-phosphate reacts with 3-phosphoglyceraldehyde during dark reaction to form:

A)

ribulose 5-phosphate

B)

xylulose 5-phosphate

C)

ribose 5-phosphate

D)

both (b) and (c)

View Answer
146) Photosynthesis in CAM-plants is minimal because of the limited amount of:

A)

\[C{{O}_{2}}\] fixed at night

B)

\[{{O}_{2}}\] fixed at night

C)

\[{{O}_{2}}\] fixed in day light

D)

\[C{{O}_{2}}\] fixed in day light

View Answer
147) Site of Krebs cycle and ATP synthesis in bacteria prokaryotes is:

A)

cell wall

B)

mitochondria

C)

plasma membrane

D)

nucleoid

View Answer
148) Poisons like cyanides inhibit \[N{{a}^{+}}\] effux and \[{{K}^{+}}\] influx. The effect is reversed by injection of ATP indicating that:

A)

\[N{{a}^{+}}\to {{K}^{+}}\] pump operates in all cells

B)

ATP is carrier protein

C)

Energy for \[N{{a}^{+}}-{{K}^{+}}\] pump comes from ATP

D)

ATP is hydrolysed by ATPase to release energy

View Answer
149) Which of these acts as a connecting link between respiration and protein synthesis ?

A)

Acetyl co-A

B)

       \[\alpha \]-ketoglutaric acid

C)

Pyruvic acid

D)

       PGAL

View Answer
150) Substrate phosphorylation occur during:

A)

fumaric acid\[\to \] malic acid

B)

oxalosuccinic acid\[\to \] \[\alpha \]-ketoglutaric acid

C)

succinic acid\[\to \] fumaric acid

D)

\[\alpha \]-ketoglutaric acid\[\to \] succinic acid

View Answer
151) Most of the biological energy is supplied by mitrochondria through:

A)

breaking of proteins

B)

reduction of NADP

C)

breaking of sugar

D)

Oxidizing TCA substrate

View Answer
152) Fixing up of the blastocyst in the wall of the uterus is known as:

A)

placentation

B)

       fertilization

C)

implantation

D)

       impregnation

View Answer
153) Absence of sexual union and failure of meiosis is known as:

A)

anisospory

B)

       apomixes

C)

       amphimixis

D)

       anisogamety

View Answer
154) Teolme theory of Zimmerman (1930) applies only to:

A)

bryophytes

B)

       pteridophytes

C)

       tracheophytes

D)

       all plants

View Answer
155) Heterospory and seed habit are exhibited by a non-flowering plant which also possess:

A)

bract

B)

       ligule

C)

petiole

D)

       spathe

View Answer
156) The term "allelomorphic? implies:

A)

any two characters

B)

a pair of contrasting character

C)

sex-linked characters

D)

a pair of non-contrasting character

View Answer
157) If a homozygous red flowered plant is crossed with a homozygous white flowered plant, the offsprings will be:

A)

all red flowered

B)

all white flowered

C)

half red flowered

D)

half white flowered

View Answer
158) How many pair of contrasting characters were chosen by Mendel for his study with garden pea?

A)

3

B)

       7

C)

5

D)

       14

View Answer
159) In DNA the two chains of double helix run opposite to each other. This head to tail arrangement is called :

A)

anti parallelism

B)

semi conservatism

C)

autoconservatism

D)

alternation

View Answer
160) If the sequence of bases in the DNA is TAGC, then the sequence of bases in m-RNA will be :

A)

ATCG

B)

       AUCG

C)

TAGC

D)

       TACG

View Answer
161) In DNA when AGCT occurs, their association is as per which of the following pair ?

A)

AC-GT

B)

       AG-CT

C)

AT-GC

D)

       All of these

View Answer
162) What would be the colour of flowers in \[{{F}_{1}}\] progeny as a result of cross between homozygous red and homozygous white flower snapdragon?

A)

Red

B)

       White

C)

Both (a) and (b)

D)

       Pink

View Answer
163) Drosophila melanogaster has:

A)

2 pair of autosomes and one pair of sex chromosome

B)

3 pair of autosomes and one pair of sex chromosomes

C)

1 pair of autosomes and 3 pair of sex chromosomes

D)

2 pair of autosomes and 2 pair of sex chromosomes

View Answer
164) DNA replication is:

A)

conservative

B)

       semi-conservative

C)

non-conservative

D)

      complex

View Answer
165) Genetic engineering is possible because:

A)

the phenomenon of transduction in bacteria is well understood

B)

restriction endonuclease purified from bacteria can be used in vitro

C)

we can see DNA at specific setes by endonucleases like DNAase I

D)

we can see DNA by electron microscope

View Answer
166) The first gentically engineered human insulin was launched in the year :

A)

1975

B)

       1993

C)

1990

D)

       1983

View Answer
167) In which of the following the sporophyte is indeterminate in growth?

A)

Riccia

B)

       Marchantia

C)

       Anthoceros

D)

       Funaria

View Answer
168) In Sphagnum, the gametophyte structure compensating for the absence of seta is known as :

A)

columella

B)

       elatrophore

C)

      sporangiophore

D)

       pseudopodium

View Answer
169) Which one of the following is a characteristic of dicotyledons ?

A)

Large xylem in roots and multicellular hairs

B)

Fibrous root system and scattered vascular bundle in stem

C)

Cotyledons are 2 and terminal in position

D)

Floral parts in multiples of 4 or 5 and stem has vascular bundles in a ring

View Answer
170) Which statement is wrong for Cuscuta ?

A)

It is a holoparasite of stem and sends its haustoria into xylem and phloem of host

B)

It is a dicot without any cotyledons

C)

If it grows on a Short Day Plant (SDP) it becomes SDP and when it grows on a Long Day Plant (LDP) it becomes LDP

D)

Its haustorial roots arise from radicle

View Answer
171) Cotton fibres which are obtained from Gossypium are:

A)

surface fibre

B)

       soft fibre

C)

hard fibre

D)

       bast fibre

View Answer
172) Semul fibre which are used as filling fibres are obtained from:

A)

Bombyx ceiba

B)

       Calotropis procera

C)

Hibiscus elatus

D)

       None of these

View Answer
173) Biogenesis of chloroplast and mitochondria is:

A)

de novo

B)

from ER/nuclear membrane

C)

from persisting organelle

D)

symbiotic origin

View Answer
174) Agranal chloroplast is common in:

A)

\[{{C}_{3}}\] plants

B)

       Hydrophytes

C)

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

D)

       Succulents

View Answer
175) A pigment in cartenoid is found in bacteria and fungi, it is:

A)

fuxocanthin

B)

lycopene

C)

       capsanthin

D)

       xanthophy

View Answer
176) The inner membrane of mitochondria bears folding/finger like projections called cristae, these cristae:

A)

increases thickness of wall

B)

increase surface area

C)

increase ATP supply

D)

keep external substance away

View Answer
177) What is mioplast?

A)

Another name of mitochondria

B)

Membraneless mitochondria

C)

Mitochondria without outer membrane

D)

Mitochondria without inner membrane

View Answer
178) In germinating oil seeds p-oxidation of free fatty acids/fat digestion takes place in:

A)

glyoxysomes

B)

       cytosol

C)

       mitochondria

D)

       sphaerosomes

View Answer
179) Lysosomes were discovered by de Duve accidently. Who gave the term lysosome and examined under electron microscope?

A)

Fitz James

B)

Novikoff

C)

       Palade

D)

       Robertson

View Answer
180) The organelles which occur external to cell membrane but internal to cell wall are:

A)

peroxisomes

B)

       glyoxysomes

C)

       sphaerosomes

D)

       lomasomes

View Answer
181) The filaments present in cilia and flagella are composed of:

A)

microtubules

B)

       microfilaments

C)

       microfibrils

D)

       microvilli

View Answer
182) 0 + 9 microfibrillar structure is found in:

A)

basal body

B)

       blepharoplast

C)

centriole

D)

       all correct

View Answer
183) Sleeping sickness is cause by:

A)

Trypanosoma gambience

B)

Plasmodium vivax

C)

Leishmania donovani

D)

Trypanosoma cruzi

View Answer
184) In which of the following sub-classes of Reptile the skull has a social roof?

A)

Anapsida

B)

       Diapsida

C)

       Segnapsida

D)

       Parapsida

View Answer
185) Cockroach, housefly and mosquitoes are insects because they have:

A)

chitinous exoskeleton and body divided into head and cephalo thorax

B)

six legs, ocellie and body divided into head, thorax and abdomen

C)

segmented body with jointed feet and chitinous exoskeleton

D)

three pairs of legs, one pair of antennae and flame cells

View Answer
186) Diagnostic character of Echinodermata is the presence of:

A)

water vascular system

B)

spiny skin

C)

       pedicellariae

D)

       all of the above

View Answer
187) Which one of the following classes has the maximum economic importance?

A)

Gastropoda

B)

       Myriapoda

C)

       Pelecypoda

D)

       Cephalopoda

View Answer
188) Any one of the following set of characters is definetely found at some stage in the life cycle of a chordate:

A)

mammary glands, hair, gill cleft

B)

notochord, gill-cleft, dorsal tubular nervous system

C)

notochord, vertebral column, gill-cleft

D)

dorsal tubular nervous system, vertebral column, scales

View Answer
189) During preservation in the frozen state i.e., freeze preservation or cryopreservation, the germplasm is frozen in:

A)

liquid hydrochloric acid

B)

liquid nitrogen

C)

liquid oxygen

D)

liquid hydrogen

View Answer
190) A bacterium which fixes atmospheric nitrogen in non-legummous plant is:

A)

Azotobacter

B)

       Rhizopus

C)

       Azospirillum

D)

       E. coli

View Answer
191) Which one of the following likely to accumulate in a dangerous proportion in the blood of a person where kidney is not working properly?

A)

Lysine

B)

       Ammonia

C)

       Sodium chloride

D)

       Urea

View Answer
192) Total number of bones found in human skull is:

A)

22

B)

29

C)

35

D)

       72

View Answer
193) In mammals, the lower jaw is made of:

A)

madulla

B)

       dentary

C)

       nandible

D)

       ethmoid

View Answer
194) Name the part of body which have single pair of bone :

A)

pelvic girdle

B)

       external ear

C)

       wrist

D)

       lower jaw

View Answer
195) Segregation of Mendelian factors (no linkage no crossing over) occurs during :

A)

anaphase I

B)

       anaphase II

C)

       diplotene

D)

       metaphase I

View Answer
196) Haemophilic man marries a carrier woman. Percentage of daughter becoming haemophilic shall be:

A)

25%

B)

       50%

C)

75%

D)

                       100%

View Answer
197) Difference between lymph and blood is that lymph contains :

A)

more RBC less WBC

B)

less RBC more WBC

C)

no RBC less WBC

D)

no RBC more WBC

View Answer
198) A mature human erythrocyte has the typical characteristic of:

A)

a eukaryotic cell

B)

a prokaryotic cell

C)

both (a) and (b)

D)

none of the above

View Answer
199) pH of blood in arteries and veins is:

A)

higher in arteries and lower in veins

B)

higher in veins and lower in arteries

C)

same

D)

variable in both

View Answer
200) An \[R{{h}^{-}}\] individual recives \[R{{h}^{+}}\] blood. The receipent becomes:

A)

sterile

B)

       dead

C)

no reaction

D)

       iso-immunised

View Answer

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