Solved papers for WB JEE Medical WB JEE Medical Solved Paper-2011

WB JEE Medical Solved Paper-2011 Total Questions - 160

1) The charge on the capacitor of capacitance C shown in the figure below will be

A)

\[C\,E\]

B)

\[\frac{C\,E\,{{R}_{1}}}{{{R}_{1}}+r}\]

C)

\[\frac{C\,E\,{{R}_{2}}}{{{R}_{2}}+r}\]

D)

\[\frac{C\,E\,{{R}_{1}}}{{{R}_{2}}+r}\]

View Answer
2) The resistance across A and B in the figure below will be

A)

3R

B)

R

C)

\[\frac{R}{3}\]

D)

None of the above

View Answer
3) Five equal resistance, each of resistance R are connected as shown in figure below. A battery of V volt is connected between A and B. The current flowing in FC will be

A)

\[\frac{3V}{R}\]

B)

\[\frac{V}{R}\]

C)

\[\frac{V}{2R}\]

D)

\[\frac{2V}{R}\]

View Answer
4) Two cells with the same emf E and different internal resistances \[{{r}_{1}}\] and \[{{r}_{2}}\] are connected in series to an external resistance R. The value of R so that the potential difference across the first cell be zero, is

A)

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

B)

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

C)

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

D)

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

View Answer
5) Current through ABC and \[ABC\]is\[I\]. What is the magnetic field at P? BP = PB = r (Here C B PBC are collinear)

A)

\[B=\frac{1}{4\pi }\frac{2I}{r}\]

B)

\[B=\frac{{{\mu }_{0}}}{4\pi }\left( \frac{2I}{r} \right)\]

C)

\[B=\frac{{{\mu }_{0}}}{4\pi }\left( \frac{I}{r} \right)\]

D)

zero

View Answer
6) The magnetic field at the point of intersection of diagonals of a square wire loop of side L carrying a current \[I\] is

A)

\[\frac{{{\mu }_{0}}I}{\pi L}\]

B)

\[\frac{2{{\mu }_{0}}I}{\pi L}\]

C)

\[\frac{\sqrt{2}{{\mu }_{0}}I}{\pi L}\]

D)

\[\frac{2\sqrt{2}{{\mu }_{0}}I}{\pi L}\]

View Answer
7) In an inelastic collision an electron excites a hydrogen atom from its ground state to a M-shell state. A second electron collides instantaneously with the excited hydrogen atom in the M-shell state and ionizes it. At least how much energy the second electron transfers to the atom in the M-shell state?

A)

+3.4eV

B)

+1.51eV

C)

-3.4 eV

D)

-1.51 eV

View Answer
8) A radioactive nucleus of mass number A, initially at rest, emits an \[\text{ }\!\!\alpha\!\!\text{ -}\]particle with a speed v. The recoil speed of the daughter nucleus will be

A)

\[\frac{2v}{A-4}\]

B)

\[\frac{2v}{A+4}\]

C)

  \[\frac{4v}{A-4}\]

D)

\[\frac{4v}{A+4}\]

View Answer
9) In       the       nuclear       reaction \[_{7}^{14}N+X\xrightarrow{{}}_{6}^{14}C+_{1}^{1}H,\]the X will be

A)

\[_{-1}^{0}e\]

B)

\[_{1}^{1}H\]

C)

\[_{1}^{2}H\]

D)

\[_{0}^{1}n\]

View Answer
10) Which type of gate the following truth table represents?

Input Output

A B Q

0 0 1

0 1 1

1 0 1

1 1 0

A)

NOT

B)

AND

C)

OR

D)

NAND

View Answer
11) Given \[\vec{A}=2\hat{i}+3\hat{j}\]and \[\vec{B}=\hat{i}+\hat{j}.\]The component of vector \[\vec{A}\] along vector \[\vec{B}\] is

A)

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

B)

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

C)

\[\frac{5}{\sqrt{2}}\]

D)

\[\frac{7}{\sqrt{2}}\]

View Answer
12) A cubical vessel of height 1 m is full of water. What is the amount of work done in pumping water out of the vessel? (Takeg \[g=10\,m/{{s}^{2}}\])

A)

1250 J

B)

5000 J

C)

1000 J

D)

2500 J

View Answer
13) A stone of relative density K is released from rest on the surface of a lake. If viscous effects are ignored, the stone sinks in water with an acceleration of

A)

\[g(1-K)\]

B)

\[g(1+K)\]

C)

\[g\left( 1-\frac{1}{K} \right)\]

D)

\[g\left( 1+\frac{1}{K} \right)\]

View Answer
14) If a person can throw a stone to maximum height of metre vertically, then the maximum distance through which it can be thrown horizontally by the same person is

A)

\[\frac{h}{2}\]

B)

\[h\]

C)

\[2h\]

D)

\[3h\]

View Answer
15) A body of mass 6 kg is acted upon by a force which causes a displacement in it given by \[x=\frac{{{t}^{2}}}{4}\] metre, where t is the time in second. 4 The work done by the force in 2 s is

A)

12J

B)

9J

C)

6J

D)

3J

View Answer
16) A box is moved along a straight line by a machine delivering constant power. The distance moved by the body in time t is proportional to

A)

\[{{t}^{\frac{1}{2}}}\]

B)

                \[{{t}^{\frac{3}{4}}}\]

C)

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

D)

\[{{t}^{2}}\]

View Answer
17) A particle is moving with a constant speed v in a circle. What is the magnitude of average velocity after half rotation?

A)

2v

B)

\[2\frac{v}{\pi }\]

C)

\[\frac{v}{2}\]

D)

\[\frac{v}{2\pi }\]

View Answer
18) A cricket ball of mass 0.25 kg with speed 10 m/s collides with a bat and returns with same speed within 0.01 s. The force acted on bat is

A)

25 N

B)

50 N

C)

250 N

D)

500 N

View Answer
19) If the earth were to suddenly contract to \[\frac{\text{1}}{\text{n}}\text{th}\] of its present radius without any change in its mass, the duration of the new day will be nearly

A)

\[24/n\,h\]

B)

\[24n\,h\]

C)

\[24/{{n}^{2}}\,h\]

D)

\[24\,{{n}^{2}}\,h\]

View Answer
20) If g is the acceleration due to gravity on the surface of the earth, the gain in potential energy of an object of mass m raised from the earths surface to a height equal to the radius R of the earth is

A)

\[\frac{mgR}{4}\]

B)

\[\frac{mgR}{2}\]

C)

\[mgR\]

D)

\[2mgR\]

View Answer
21) A material has Poissons ratio 0.50. If a uniform rod of it suffers a longitudinal strain of \[2\times {{10}^{-3}},\] then the percentage change in volume is

A)

0.6

B)

0.4

C)

0.2

D)

zero

View Answer
22) Two identical springs are connected to mass m as shown (\[k=\]spring constant). If the period of the configuration in is 2s, the period of the configuration in is

A)

\[\sqrt{2}\,s\]

B)

1s

C)

\[\frac{1}{\sqrt{2}}s\]

D)

\[2\sqrt{2}\,s\]

View Answer
23) An object weights \[{{m}_{1}}\]in a liquid of density \[{{d}_{1}}\]and that in liquid of density \[{{d}_{2}}\]is \[{{m}_{2}}.\]density d of the object is

A)

\[\frac{{{m}_{2}}{{d}_{2}}-{{m}_{1}}{{d}_{1}}}{{{m}_{2}}-{{m}_{1}}}\]

B)

\[\frac{{{m}_{1}}{{d}_{1}}-{{m}_{2}}{{d}_{2}}}{{{m}_{2}}-{{m}_{1}}}\]

C)

\[\frac{{{m}_{2}}{{d}_{1}}-{{m}_{1}}{{d}_{2}}}{{{m}_{1}}-{{m}_{2}}}\]

D)

\[\frac{{{m}_{1}}{{d}_{2}}-{{m}_{2}}{{d}_{1}}}{{{m}_{1}}-{{m}_{2}}}\]

View Answer
24) A body floats in water with 40% of its volume outside water. When the same body floats in an oil. 60% of its volume remains outside oil. The relative density of oil is

A)

0.9

B)

1.0

C)

1.2

D)

1.5

View Answer
25) Two soap bubbles of radii \[x\] and \[y\] coalesce to constitute a bubble of radius z. Then z is equal to___

A)

\[\sqrt{{{x}^{2}}+{{y}^{2}}}\]

B)

\[\sqrt{x+y}\]

C)

\[x+y\]

D)

\[\frac{x+y}{2}\]

View Answer
26) A particle of mass m is located in a one dimensional potential field where potential energy is given by \[V(x)=A(1-\cos \,px),\]where A and p are constants. The period of small oscillations of the particle is

A)

\[2\pi \sqrt{\frac{m}{(Ap)}}\]

B)

\[2\pi \sqrt{\frac{m}{(A{{p}^{2}})}}\]

C)

\[2\pi \sqrt{\frac{m}{A}}\]

D)

\[\frac{1}{2\pi }\sqrt{\frac{Ap}{m}}\]

View Answer
27) The period of oscillation of a simple pendulum of length \[l\] suspended from the roof of a vehicle, which moves without friction down an inclined plane of inclination \[\alpha ,\]is given by

A)

\[2\pi \sqrt{\frac{l}{g\,\cos \,\alpha }}\]

B)

\[2\pi \sqrt{\frac{l}{g\,\sin \,\alpha }}\]

C)

\[2\pi \sqrt{\frac{l}{g\,}}\]

D)

\[2\pi \sqrt{\frac{l}{g\,\tan \,\alpha }}\]

View Answer
28) In Youngs double slit experiment the two slits are d distance apart. Interference pattern is observed on a screen at a distance D from the slits. A dark fringe is observed on the screen directly opposite to one of the slits. The wavelength of light is

A)

\[\frac{{{D}^{2}}}{2d}\]

B)

\[\frac{{{d}^{2}}}{2D}\]

C)

\[\frac{{{D}^{2}}}{d}\]

D)

\[\frac{{{d}^{2}}}{D}\]

View Answer
29) A plane progressive wave is given by \[y=2\cos 6.284(330t-x).\]What is period of the wave?

A)

\[\frac{1}{330}s\]

B)

\[2\pi \times 330\,s\]

C)

\[{{(2\pi \times 330)}^{-1}}s\]

D)

\[\frac{6.284}{330}s\]

View Answer
30) The displacement of a particle is SHM varies according      to      the      relation \[x=4(cos\pi t+sin\pi t).\]The amplitude of the particle is

A)

\[-4\]

B)

4

C)

\[4\sqrt{2}\]

D)

8

View Answer
31) Two temperature scales A and B are related by \[\frac{A-42}{110}=\frac{B-72}{220}.\] which temperature two scales have the same reading?

A)

\[-{{42}^{o}}\]

B)

\[-{{72}^{o}}\]

C)

\[+\,{{12}^{o}}\]

D)

\[-{{40}^{o}}\]

View Answer
32) An ideal gas is compressed isothermally until its pressure is doubled and then allowed to expand adiabatically to regain its original volume (\[\gamma =1.4\]and\[{{2}^{-14}}=0.38\]). The ratio of the final to initial pressure is

A)

0.76 : 1

B)

1 : 1

C)

0.66 : 1

D)

0.86 : 1

View Answer
33) Air inside a closed container is saturated with water vapour. The air pressure is p and the saturated vapour pressure of water is \[\bar{P}\].If the mixture is compressed to one-half of its volume   by   maintaining   temperature constant, the pressure becomes

A)

\[2(p+\bar{p})\]

B)

\[2p+\bar{p}\]

C)

\[(p+\bar{p})/2\]

D)

\[p+2\bar{p}\]

View Answer
34) 1\[1.56\times {{10}^{5}}\,J\] of heat is conducted through a \[\text{2}\,{{\text{m}}^{\text{2}}}\]wall of 12 cm thick in 1h. Temperature difference between the two sides of the wall is \[\text{20}{{\,}^{\text{o}}}\text{C}\text{.}\] The thermal conductivity of the material of the wall is (in \[\text{W}\,{{\text{m}}^{-1}}{{K}^{-1}}\])

A)

0.11

B)

0.13

C)

0.15

D)

1.2

View Answer
35) A diver at a depth of 12 m in water \[\left( \mu =\frac{4}{3} \right)\] sees the sky in a cone of semivertical angle

A)

\[{{\sin }^{-1}}\left( \frac{4}{3} \right)\]

B)

\[{{\tan }^{-1}}\left( \frac{4}{3} \right)\]

C)

\[{{\sin }^{-1}}\left( \frac{3}{4} \right)\]

D)

\[\text{9}{{\text{0}}^{\text{o}}}\]

View Answer
36) Two thin lenses of focal lengths 20 cm and 25 cm are placed in contact. The effective power of the combination is

A)

9D

B)

2D

C)

3D

D)

7D

View Answer
37) A convex lens of focal length 30 cm produces 5 times magnified real image of an object. What is the object distance?

A)

36 cm

B)

25 cm

C)

30 cm

D)

150 cm

View Answer
38) If the focal length of the eye-piece of a telescope is doubled, its magnifying power (m) will be

A)

\[2\,m\]

B)

\[3\,m\]

C)

\[\frac{m}{2}\]

D)

\[4m\]

View Answer
39) A plano-concave lens is made of glass of refractive index 1.5 and the radius of curvature of its curved face is 100 cm. What is the power of the lens?

A)

\[+\,0.5\,D\]

B)

\[-0.5\,D\]

C)

\[-2\,D\]

D)

\[+\,2\,D\]

View Answer
40) Four charges equal to -Q are placed at the four comers of a square and a charge q is at its centre. If the system is in equilibrium, the value of q is

A)

\[\frac{-Q}{4}(1+2\sqrt{2})\]

B)

\[\frac{Q}{4}(1+2\sqrt{2})\]

C)

\[\frac{-Q}{2}(1+2\sqrt{2})\]

D)

\[\frac{Q}{2}(1+2\sqrt{2})\]

View Answer
41) Two aromatic compounds having formula \[{{C}_{7}}{{H}_{8}}O\]which are easily identifiable by \[FeC{{l}_{3}}\]solution test (violet colouration) are

A)

o-cresol and benzyl alcohol

B)

m-cresol and p-cresol

C)

o-cresol and p-cresol

D)

methyl phenyl ether and benzyl alcohol

View Answer
42) The ease of dehydrohalogenation of alkyl halide with alcoholic KOH is

A)

\[{{3}^{o}}<{{2}^{o}}<{{1}^{o}}\]

B)

\[{{3}^{o}}>{{2}^{o}}>{{1}^{o}}\]

C)

\[{{3}^{o}}<{{2}^{o}}>{{1}^{o}}\]

D)

\[{{3}^{o}}>{{2}^{o}}<{{1}^{o}}\]

View Answer
43) The ease of nitration of the following three hydrocarbons follows the order

A)

II = III = I

B)

II > III > I

C)

III > II > I

D)

I = III > II

View Answer
44) The correct order of decreasing acidity of nitrophenols will be

A)

m- nitrophenol>p-nitrophenol>o-nitrophenol

B)

o-nitrophenol >m-nitrophenol> p-nitrophenol

C)

p-nitrophenol>m-mtrophenol> o-nitrophenol

D)

p-nitrophenol > o-nitrophenol > m-nitrophenol

View Answer
45) Among the alkenes which one produces tertiary butyl alcohol on acid hydration?

A)

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

B)

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

C)

\[{{(C{{H}_{3}})}_{2}}C=C{{H}_{2}}\]

D)

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

View Answer
46) Which of the following compounds has maximum volatility?

A)

B)

C)

D)

View Answer
47) Which one of the following will show optical isomerism?

A)

\[HO-\underset{H}{\overset{H}{\mathop{\underset{|}{\overset{|}{\mathop{C-C{{O}_{2}}H}}}\,}}}\,\]

B)

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

C)

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

D)

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

View Answer
48) The pH of an aqueous solution of \[C{{H}_{3}}COONa\]of concentration C(M) is given by

A)

\[7-\frac{1}{2}p{{K}_{a}}-\frac{1}{2}\log \,C\]

B)

\[\frac{1}{2}p{{K}_{w}}+\frac{1}{2}p{{K}_{b}}+\frac{1}{2}\log \,C\]

C)

\[\frac{1}{2}p{{K}_{w}}-\frac{1}{2}p{{K}_{b}}-\frac{1}{2}\log \,C\]

D)

\[\frac{1}{2}p{{K}_{w}}+\frac{1}{2}p{{K}_{a}}+\frac{1}{2}\log \,C\]

View Answer
49) The standard reduction potential \[{{\text{E}}^{\text{o}}}\]for half- reaction are \[Zn\to Z{{n}^{2+}}+2{{e}^{-}};{{E}^{o}}=+0.76\,V\] \[Fe\to F{{e}^{2+}}+2{{e}^{-}};{{E}^{o}}=+\,0.41\,V\] The EMF of the cell reaction \[F{{e}^{2+}}+Zn\to Z{{n}^{2+}}+Fe\]is

A)

\[-0.35\,V\]

B)

\[+\,0.35\text{ }V\]

C)

\[+1.17\,V\]

D)

\[-1.17\,V\]

View Answer
50) If the equilibrium constants of the following equilibria, \[S{{O}_{2}}+\frac{1}{2}{{O}_{2}}\to S{{O}_{3}}\]and \[2S{{O}_{3}}\to 2S{{O}_{2}}+{{O}_{2}}\] are given by \[{{K}_{1}}\] and \[{{K}_{2}}\] respectively, which of the following relations is correct?

A)

\[{{K}_{2}}={{\left( \frac{1}{{{K}_{1}}} \right)}^{2}}\]

B)

\[{{K}_{1}}={{\left( \frac{1}{{{K}_{2}}} \right)}^{3}}\]

C)

\[{{K}_{2}}=\left( \frac{1}{{{K}_{1}}} \right)\]

D)

\[{{K}_{2}}={{({{K}_{1}})}^{2}}\]

View Answer
51) The energy of an electron in first Bohr orbit of H-atom is -13.6 eV. The possible energy value of electron in the excited state of \[\text{L}{{\text{i}}^{\text{2+}}}\] is

A)

-122.4 eV

B)

30.6 eV

C)

-30.6 eV

D)

13.6 eV

View Answer
52) The amount of the heat released when 20 mL 0.5 M NaOH is mixed with 100 mL M HCl is \[x\,kJ.\] The heat of neutralization is

A)

\[-100\,x\,\text{kJ/mol}\]

B)

\[-50\,x\,\text{kJ/mol}\]

C)

\[+\,100\,x\,\text{kJ/mol}\]

D)

\[+50\,x\,\text{kJ/mol}\]

View Answer
53) Which one of the following has the lowest ionisation energy?

A)

\[1{{s}^{2}},\,2{{s}^{2}},\,2{{p}^{6}}\]

B)

\[1{{s}^{2}},\,2{{s}^{2}},\,2{{p}^{6}},3{{s}^{1}}\]

C)

\[1{{s}^{2}},\,2{{s}^{2}},\,2{{p}^{5}}\]

D)

\[1s,\,2{{s}^{2}},\,2{{p}^{3}}\]

View Answer
54) The ozone layer forms naturally by

A)

the interaction of CFC with oxygen

B)

the interaction of UV radiation with oxygen

C)

the interaction of IR radiation with oxygen

D)

the interaction of oxygen and water vapour

View Answer
55) 2 g of metal carbonate is neutralized completely by 100 mL of 0.1 N HCl. The equivalent weight of metal carbonate is

A)

50

B)

100

C)

150

D)

200

View Answer
56) Which one of the following is not true at room temperature and pressure?

A)

\[{{\text{P}}_{\text{4}}}{{\text{O}}_{\text{10}}}\] is white solid

B)

\[\text{S}{{\text{O}}_{2}}\]is a colourless gas

C)

\[\text{S}{{\text{O}}_{3}}\]is a colourless gas

D)

\[\text{N}{{\text{O}}_{2}}\]is a brown gas

View Answer
57) An electric current is passed through an aqueous solution of a mixture of alanine (isoelectric point 6.0), glutamic acid (3.2) and arginine (10.7) buffered at pH 6. What is the fate of the three acids?

A)

Glutamic acid migrates to anode at pH 6. Arginine is present as a cation and migrates to the cathode. Alanine in a dipolar ion remains uniformly distributed in solution

B)

Glutamic acid migrates to cathode and others remain uniformly distributed in solution

C)

All three remain uniformly distributed in solution

D)

All three move to cathode

View Answer
58) The representation of the ground state electronic configuration of He by box-diagram as \[\] is wrong because it violates

A)

Heisenbergs uncertainty principle

B)

Bohrs quantization theory of angular momenta

C)

Pauli exclusion principle

D)

Hunds rule

View Answer
59) The electronic transitions from \[n=2\] to \[n=1\]will produce shortest wavelength in (where n = principal quantum state)

A)

\[L{{i}^{2+}}\]

B)

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

C)

H

D)

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

View Answer
60) In the following electron-dot structure, calculate the formal charge from left to right nitrogen atom; \[\underset{\centerdot \,\,\centerdot }{\overset{\centerdot \,\,\centerdot }{\mathop{N}}}\,=N=\underset{\centerdot \,\,\centerdot }{\overset{\centerdot \,\,\centerdot }{\mathop{N}}}\,\]

A)

\[-1,-\text{ }1,+\text{ }1\]

B)

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

C)

\[+1,-\text{ }1,-1\]

D)

\[+1,-\text{ }1,+1\]

View Answer
61) If the molecular wt. of \[\text{N}{{\text{a}}_{\text{2}}}{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}\]and \[{{\text{I}}_{\text{2}}}\] are \[{{\text{M}}_{1}}\]and \[{{\text{M}}_{2}}\]respectively then what will be the equivalent weight of \[\text{N}{{\text{a}}_{\text{2}}}{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{3}}}\]and \[{{\text{I}}_{2}}\]in the following reaction? \[2{{S}_{2}}O_{3}^{2-}+{{I}_{2}}\xrightarrow{{}}{{S}_{4}}O_{6}^{2-}+2{{I}^{-}}\]

A)

\[{{M}_{1}},{{M}_{2}}\]

B)

\[{{M}_{1}},{{M}_{2}}/2\]

C)

\[2{{M}_{1}},{{M}_{2}}\]

D)

\[{{M}_{1}}2{{M}_{2}}\]

View Answer
62) A radioactive atom \[_{\text{Y}}^{\text{X}}\text{M}\]emits two \[\alpha \] particles and one P particle successively. The number of neutrons in the nucleus of the product will be

A)

\[X-4-Y\]

B)

\[X-Y-5\]

C)

\[X-Y-3\]

D)

\[X-Y-6\]

View Answer
63) An element belongs to group 15 and third period of the Periodic Table. Its electronic configuration will be

A)

\[1{{s}^{2}}2{{s}^{2}}2{{p}^{3}}\]

B)

\[1{{s}^{2}}2{{s}^{2}}2{{p}^{4}}\]

C)

\[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{3}}\]

D)

\[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{2}}\]

View Answer
64) Which one of the following is paramagnetic?

A)

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

B)

NO

C)

CO

D)

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

View Answer
65) Platinum, palladium and iridium are called noble metals because

A)

Alfred Nobel discovered them

B)

they are shining lustrous and pleasing to look at

C)

they are found in native state

D)

they are inert towards many common reagents

View Answer
66) Which one is not a constituent of nucleic acid?

A)

Uracil

B)

Guanidine

C)

Phosphoric acid

D)

Ribose sugar

View Answer
67) The \[s{{p}^{3}}{{d}^{2}}\]hybridisation of central atom of a molecule would lead to

A)

square planar geometry

B)

tetrahedral geometry

C)

trigonal bipyramidal geometry

D)

octahedral geometry

View Answer
68) In aqueous solution glucose remains as

A)

only in open chain form

B)

only in pyranose form

C)

only in furanose form

D)

in all three forms in equilibrium

View Answer
69) Which of the following is used to prepare \[\text{C}{{\text{l}}_{\text{2}}}\]gas at room temperature from concentrated HCl?

A)

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

B)

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

C)

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

D)

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

View Answer
70) \[\text{N}{{\text{O}}_{\text{2}}}\]is not obtained on heating

A)

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

B)

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

C)

\[Cu{{(N{{O}_{3}})}_{2}}\]

D)

\[Pb{{(N{{O}_{3}})}_{2}}\]

View Answer
71) The normality of 30 volume \[{{H}_{2}}{{O}_{2}}\]is

A)

2.678 N

B)

5.336 N

C)

8.034 N

D)

6.685 N

View Answer
72) Reaction of formaldehyde and ammonia gives

A)

hexamethylene tetramine

B)

bake lite

C)

urea

D)

triethylene tetramine

View Answer
73) A plot of In K against\[\frac{1}{T}\] (abscissa) is expected to be a straight line with intercept on ordinate axis equal to

A)

\[\frac{\Delta {{S}^{o}}}{2.303R}\]

B)

\[\frac{\Delta {{S}^{o}}}{R}\]

C)

\[-\frac{\Delta {{S}^{o}}}{R}\]

D)

\[R\times \Delta {{S}^{o}}\]

View Answer
74) Which of the following represents the composition of camallite mineral?

A)

\[{{K}_{2}}O.A{{l}_{2}}{{O}_{3}}.6Si{{O}_{2}}\]

B)

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

C)

\[{{K}_{2}}S{{O}_{4}}.MgS{{O}_{4}}.MgC{{l}_{2}}.6{{H}_{2}}O\]

D)

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

View Answer
75) The solubility of \[C{{a}_{3}}{{(P{{O}_{4}})}_{2}}\]in water is y mol/L. Its solubility product is

A)

\[6{{y}^{4}}\]

B)

\[36{{y}^{4}}\]

C)

\[64{{y}^{5}}\]

D)

\[108{{y}^{5}}\]

View Answer
76) Paracetamol is

A)

methyl salicylate

B)

phenyl salicylate

C)

N-acetyl p-amino phenol

D)

acetyl salicylic acid

View Answer
77) Anhydrous ferric chloride is prepared by

A)

dissoving \[Fe{{(OH)}_{3}}\]in concentrated \[HCl\]

B)

dissolving \[Fe{{(OH)}_{3}}\]in dilute HCl

C)

passing dry HCl over heated iron scrap

D)

passing dry \[\text{C}{{\text{l}}_{\text{2}}}\]gas over heated iron scrap

View Answer
78) Which one of the following is 5-butyl phenyl vinyl methane?

A)

B)

C)

D)

View Answer
79) Hybridisation of \[{{C}_{2}}\]   and   \[{{C}_{3}}\]   of \[{{H}_{3}}C-CH=CH-C{{H}_{3}}\]are

A)

\[sp,s{{p}^{3}}\]

B)

\[s{{p}^{2}},sp\]

C)

\[s{{p}^{2}},s{{p}^{2}}\]

D)

\[sp,sp\]

View Answer
80) Which of the following compounds is not formed in iodoform reaction of acetone?

A)

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

B)

\[IC{{H}_{2}}COC{{H}_{2}}I\]

C)

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

D)

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

View Answer
81) Glucose and amino acids are reabsorbed in the

A)

proximal tubule

B)

distal tubule

C)

collecting duct

D)

loop of Henie

View Answer
82) The amount of CSF in the cranial cavity

A)

500 mL

B)

140 mL

C)

1 litre

D)

1.5 mL

View Answer
83) Which one is imino add?

A)

Pepsin

B)

Proline

C)

Cysteine

D)

Renin

View Answer
84) The main difference between Gram positive and Gram negative bacteria is

A)

cell membrane

B)

cell wall

C)

ribosome

D)

mitochondria

View Answer
85) ACTH is secreted from

A)

adrenal cortex

B)

pituitary

C)

adrenal medulla

D)

thyroid

View Answer
86) Which of the following is the correct pathway for propagation of cardiac impulse?

A)

SA node\[\to \]AV node\[\to \]Bundle of His\[\to \] Purkinje fibres

B)

AV node \[\to \] Bundle of His \[\to \] SA node \[\to \] Purkinje fibres

C)

SA node \[\to \] Purkinje fibres \[\to \] AV node \[\to \] Bundle of His

D)

Purkinje fibres\[\to \]AV node\[\to \]SA node\[\to \] Bundle of His

View Answer
87) Inner surface of the bronchi, bronchioles and fallopian tubes are lined by

A)

cubical epithelium

B)

columnar epithelium

C)

squamous epithelium

D)

ciliated epithelium

View Answer
88) Electric potential of the brain is recorded by

A)

CT scan

B)

Sphygmomanometer

C)

ECG

D)

EEG

View Answer
89) Which of the following is related to humoral immunity?

A)

T-lymphocyte

B)

B-lymphocyte

C)

I-lymphocyte

D)

P-lymphocyte

View Answer
90) Fertilization occur in

A)

uterus

B)

ureter

C)

vagina

D)

fallopian tube

View Answer
91) The gastrin is secreted from

A)

intestine

B)

stomach

C)

pancreas

D)

rectum

View Answer
92) The cause of cretinism is

A)

hypothyroidism

B)

hypoparathyroidism

C)

hyperthyroidism

D)

hyperparathyroidism

View Answer
93) Which of the following is a minerelocorticoid?

A)

Testosterone

B)

Progesterone

C)

Adrenalin

D)

Aldosterone

View Answer
94) The part of the brain where the centre for hunger and thirst is located is

A)

cerebrum

B)

hypothalamus

C)

cerebellum

D)

medulla oblongata

View Answer
95) The reflex arc, which is made of two neurons is known as

A)

monosynaptic reflex arc

B)

disynaptic reflex arc

C)

polysynaptic reflex arc

D)

asynaptic reflex arc

View Answer
96) The lactase hydrolyses lactose into

A)

glucose

B)

glucose and galactose

C)

fructose

D)

glucose and fructose

View Answer
97) In 24 hours, total glomerular filtrate formed in human kidney is

A)

1.7 litres

B)

7 litres

C)

17 litres

D)

170 litres

View Answer
98) When the oxygen supply to the tissue in inadequate, the condition is

A)

dyspnea

B)

hypoxia

C)

asphyxia

D)

apnea

View Answer
99) Which one of the following is not a second messenger in hormone action?

A)

Calcium

B)

Sodium

C)

c AMP

D)

c GMP

View Answer
100) The name of the pace maker of the heart is

A)

lymph node

B)

SA node

C)

juxtaglomerular apparatus

D)

semilunar valve

View Answer
101) What is a genophore?

A)

DNA in prokaryotes

B)

DNA and RNA in prokaryotes

C)

DNA and protein in prokaryotes

D)

RNA in prokaryotes

View Answer
102) Example of a typical homopolysaccharide is

A)

lignin

B)

suberin

C)

inulin

D)

starch

View Answer
103) Who wrote the famous book Origin of Species?

A)

Lamarck

B)

Darwin

C)

de Vries

D)

Mendel

View Answer
104) Polyploid derived from two different species is called

A)

autopolyploid

B)

triploid

C)

allopolyploid

D)

monoploid

View Answer
105) Electrons used in electron microscope are of the wavelength

A)

0.05\[Ao\]

B)

0.15\[Ao\]

C)

0.25\[Ao\]

D)

0.30\[Ao\]

View Answer
106) Biolistic technique is used in

A)

tissue culture process

B)

gene transfer process

C)

hybridization process

D)

germplasm conservation process

View Answer
107) Example of water soluble plant pigment is

A)

chlorophyll- a

B)

chlorophyll- b

C)

anthocyanin

D)

xanthophylls

View Answer
108) Structural element of chromatin is

A)

histone

B)

acid protein and DNA

C)

nuclear matrix

D)

nucleosomes

View Answer
109) Inulin is a polymer of

A)

glucose

B)

galactose

C)

fructose

D)

arabinose

View Answer
110) Mannitol is

A)

amino acid

B)

amino alcohol

C)

sugar alcohol

D)

sugar acid

View Answer
111) A flower which can be divided into two equal halves by only one plane is

A)

zygomorphic

B)

actinomorphic

C)

regular

D)

perfect

View Answer
112) Pieces of plant tissue used in culture is called

A)

explant

B)

domaclone

C)

inoculant

D)

clone

View Answer
113) VAM is

A)

symbiotic bacteria

B)

saprophytic bacteria

C)

saprophytic fungi

D)

symbiotic fungi

View Answer
114) Ovule integument gets transformed into

A)

seed

B)

fruit wall

C)

seed coat

D)

cotyledons

View Answer
115) Acid rain is caused by

A)

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

B)

\[S{{O}_{2}}\] and \[N{{O}_{2}}\]

C)

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

D)

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

View Answer
116) Which one of the following bacterium is used for production of transgenic plants

A)

Escherichia coli

B)

Bacillus thuringiensis

C)

Staphylococcus aureus

D)

Agrobacterium tumefadens

View Answer
117) A plant cell becomes turgid due to

A)

plasmolysis

B)

exosmosis

C)

endosmosis

D)

electrolysis

View Answer
118) Restriction enzymes are used to cut

A)

single stranded RNA

B)

double stranded DNA

C)

single stranded DNA

D)

double stranded RNA

View Answer
119) Spindle fibre is made up of

A)

humulin

B)

intermediate filament

C)

flagellin

D)

tubulin

View Answer
120) Edible part of mushroom is

A)

basidiocarp

B)

primary mycelium

C)

fungal hyphae

D)

basidiospores

View Answer
121) Calcium level decreases in the blood due to hyposecretion of

A)

parathyroid hormone

B)

calcitonin

C)

thyroxine

D)

adrenaline

View Answer
122) Kupffers cells are

A)

phagocytic

B)

actin

C)

myosin

D)

fibrin

View Answer
123) Which centre is stimulated during increase in body temperature?

A)

Anterior hypothalamus

B)

Posterior hypothalamus

C)

Limbic system

D)

Red nucleus

View Answer
124) Name the following having oxygen storing capacity

A)

myoglobin

B)

prophase- II

C)

anaphase- I

D)

metaphase- II

View Answer
125) Longest phase of meiosis

A)

prophase- I

B)

prophase- II

C)

anaphase- I

D)

metaphase- II

View Answer
126) Tetany is caused by

A)

hyperparathyroidism

B)

hypoparathyroidism

C)

hyperthyroidism

D)

hypothyroidism

View Answer
127) Which the following is a gastrointestme hormone?

A)

Prolactin

B)

Enterogastrone

C)

GH

D)

FSH

View Answer
128) Name the hormone that has no role in menstruation

A)

LH

B)

FSH

C)

GH

D)

TSH

View Answer
129) Which of the following substances can cure Parkinsons disease?

A)

GABA

B)

Acetylcholine

C)

Dopamine

D)

Glutamic acid

View Answer
130) Movement of tongue muscle is controlled by

A)

facial nerve

B)

trigeminal nerve

C)

hypoglossal nerve

D)

vagus nerve

View Answer
131) Which function will be lost due to damage of occipital lobe?

A)

Hearing

B)

Speech

C)

Vision

D)

Memory

View Answer
132) Meissners corpuscles occur in

A)

brain

B)

nerve cells

C)

skin

D)

tongue

View Answer
133) Osteomalacia is a deficiency disease of

A)

infants due to protein energy malnutrition

B)

adults due to protein energy malnutrition

C)

adults due to vitamin-D deficiency

D)

infants due to vitamin-K deficiency

View Answer
134) The gene of sickle cell anaemia is inherited by

A)

blood cells

B)

bone cells

C)

sex chromosomes

D)

autosomes

View Answer
135) Ptyalin is inactivated by a component of gastric juice known as

A)

pepsin

B)

mucus

C)

renin

D)

HCl

View Answer
136) Which one of the following human cells do not contain mitochondria?

A)

Nerve cell

B)

Red blood cell

C)

Liver cell

D)

White blood cell

View Answer
137) In which stage of the first meiotic division two sister chromatids are formed?

A)

Leptotene

B)

Zygotene

C)

Pachytene

D)

Diplotene

View Answer
138) Which one of the following triplet codon is a chain termination codon?

A)

UGU

B)

AAU

C)

UUG

D)

UAG

View Answer
139) How many pairs of contrasting characters in pea pod were chosen by Mendel?

A)

3

B)

5

C)

7

D)

9

View Answer
140) If a cross between two individuals produces offsprings with 50% dominant character and 50% recessive character the genotype of parents are

A)

\[Aa\times Aa\]

B)

\[Aa\times aa\]

C)

\[AA\times aa\]

D)

\[AA\times Aa\]

View Answer
141) Structural lipids of cell membrane are

A)

simple lipid

B)

chromolipids

C)

steroid

D)

phospholipids

View Answer
142) Which one of the following is polysaccharide?

A)

Glycogen

B)

Sucrose

C)

Lactose

D)

Maltose

View Answer
143) What will be the codons in mRNA if the DNA codes are ATG-CAG?

A)

TAC-GTC

B)

UAC-GUC

C)

UCA-TUA

D)

TCA-GTC

View Answer
144) Which of the following species is restricted to a specific area?

A)

Sibling species

B)

Allopatric species

C)

Sympatric species

D)

Endemic species

View Answer
145) Which of the following is not correctly matched?

A)

Sycon                   ?           Canal system

B)

Star fish               ?           Radial symmetry

C)

Ascaris                 ?           Flame cell

D)

Prawn                  ?          Haemocoel

View Answer
146) Which one of the following animal phyla does not possess a coelom?

A)

Platyhelminthes

B)

Annelida

C)

Mollusca

D)

Echinodermata

View Answer
147) Cardiac muscles are

A)

striated and voluntary

B)

striated and involuntary

C)

smooth and voluntary

D)

smooth and involuntary

View Answer
148) Which one of the following immunoglobulins is found as pentamer?

A)

IgG

B)

IgM

C)

IgA

D)

IgE

View Answer
149) Which one of the following cells is not a phagocytic cell?

A)

Macrophage

B)

Monocyte

C)

Neutrophil

D)

Basophil

View Answer
150) Which one of the following is the most primitive ancestor of man?

A)

Homo habilis

B)

Australopithecus

C)

Ramapithecus punjabicus

D)

Homo neanderthalensis

View Answer
151) A female Anopheles mosquito can be recognized by

A)

proboscis and palpi are long and more or less of equal length

B)

proboscis long and palpi short

C)

proboscis short and palpi long

D)

Both proboscis and palpi are short

View Answer
152) The anterior V- spot in microfilaria of Wuchereria represents

A)

nerve ring

B)

cervical papilla

C)

excretory system

D)

reproductive system

View Answer
153) In a population, unrestricted reproductive capacity is called

A)

biotic potential

B)

fertility

C)

carrying capacity

D)

birthrate

View Answer
154) When the two ecosystems overlap each other, the area is called

A)

habitat

B)

niche

C)

ecotone

D)

ecotype

View Answer
155) Pyramid of energy in ecosystems is

A)

always upright

B)

always inverted

C)

mostly upright

D)

mostly inverted

View Answer
156) Which one of the following is mainly responsible for green houses effect?

A)

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

B)

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

C)

\[CO\]

D)

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

View Answer
157) Which one of the following is an exotic carp species?

A)

Barbus stigma

B)

Cyprinus carpio

C)

Labeo bata

D)

Cirrhinus mrigala

View Answer
158) Which of the following two hormones are essential for induced breeding of fishes?

A)

TSH and ACTH

B)

Oestrogen and progesterone

C)

FSH and LH

D)

Vasopressin and oxytocin

View Answer
159) Which stage of malarial parasite is infective toman?

A)

Gametocyte

B)

Merozoite

C)

Cryptomerozoite

D)

Sporozoite

View Answer
160) The scientific name of the moth which produce tasar is

A)

Bombyxmori

B)

Antherae mylitta

C)

Antherae assamensis

D)

Philosomia ricini

View Answer