Solved papers for AMU Medical AMU Solved Paper-2007

AMU Solved Paper-2007 Total Questions - 200

1) The position of the particle moving along y-axis is given as \[\text{y}=\text{A}{{\text{t}}^{\text{2}}}-\text{B}{{\text{t}}^{\text{3}}},\]where y is measured in metre and t in second. Then, the dimensions of B are

A)

\[\left[ \text{L}{{\text{T}}^{-\text{2}}} \right]\]

B)

\[\left[ \text{L}{{\text{T}}^{-\text{1}}} \right]\]

C)

\[\left[ \text{L}{{\text{T}}^{-\text{3}}} \right]\]

D)

\[\left[ \text{ML}{{\text{T}}^{-\text{2}}} \right]\]

View Answer
2) A conveyor belt is moving horizontally at a speed of 4 m/s. A box of mass 20 kg is gently laid on it. It takes O.ls for the box to come to rest. If the belt continues to move uniformly, then the distance moved by the box on the conveyor belt is

A)

zero

B)

0.2 m

C)

0.4 m

D)

0.8 m

View Answer
3) If retardation produced by air resistance to the particle is one-tenth of acceleration due to gravity, the time to return from the maximum height

A)

increases by 9%

B)

decreases by 9 %

C)

increases by 11%

D)

decreases by 11%

View Answer
4) An open knife edge of mass m is dropped from a height h on a wooden floor. If the blade penetrates distance s into the wood, the average resistance offered by the wood to the blade is

A)

\[mg\]

B)

\[mg\frac{h}{s}\]

C)

\[mg\left( 1-\frac{h}{s} \right)\]

D)

\[mg{{\left( 1+\frac{h}{s} \right)}^{2}}\]

View Answer
5) Energy required to accelerate a car from \[\text{1}0\text{m}/\text{s to 2}0\text{ m}/\text{s}\]compared with that required to accelerate it from 0 to \[\text{1}0\text{ m}/\text{s}\]is

A)

twice

B)

thrice

C)

four times

D)

same

View Answer
6) A solid sphere of mass 2 kg rolls up a \[30{}^\circ \] incline with an initial speed of 10 m/s. The maximum height reached by the sphere is\[\left( \text{g}=\text{1}0\text{m}/{{\text{s}}^{\text{2}}} \right)\]

A)

3.5 m

B)

7.0 m

C)

10.5 m

D)

14.0 m

View Answer
7) Two satellites are moving in the same circular orbit around the earth. They must have the same

A)

mass

B)

angular momentum

C)

kinetic energy

D)

speed

View Answer
8) A planet having average surface temperature \[{{T}_{0}}\]at an average distance d from the sun. Assuming that the planet receives radiant energy from the sun only and it loses radiant energy only from the surface and neglecting all other atmospheric effects we conclude

A)

\[{{T}_{0}}\propto {{d}^{2}}\]

B)

\[{{T}_{0}}\propto {{d}^{-2}}\]

C)

\[{{T}_{0}}\propto {{d}^{1/2}}\]

D)

\[{{T}_{0}}\propto {{d}^{-1/2}}\]

View Answer
9) Time period of a simple pendulum is T. If its length increases by 2%, the new time period becomes

A)

0.98 T

B)

1.02 T

C)

0.99 T

D)

1.01 T

View Answer
10) A boat is rocked by waves of velocity 25 m/s having crests 100 m apart. They reach the boat once every

A)

4.0 s

B)

8.0 s

C)

2.0 s

D)

0.25 s

View Answer
11) Two point charges +2C and + 6C repel each other with a force of 12 N. If a charge of- 2C is given to each of these charges the force will now be

A)

zero

B)

8 N (attractive)

C)

8 N (repulsive)

D)

None of the above

View Answer
12) The equivalent resistance between A and B (of the circuit shown) is

A)

4.5\[\Omega \]

B)

12\[\Omega \]

C)

5.4\[\Omega \]

D)

20\[\Omega \]

View Answer
13) A 2 kW boiler used for 1 h/day consumes the following electrical energy in thirty days

A)

60 unit

B)

120 unit

C)

15 unit

D)

\[6\times {{10}^{4}}\]unit

View Answer
14) Two long straight wires are set parallel to each other at separation r and each carries a current \[I\] in the same direction. The strength of the magnetic field at any point midway between the two wires is

A)

\[\frac{{{\mu }_{o}}I}{\pi r}\]

B)

\[\frac{2{{\mu }_{o}}I}{\pi r}\]

C)

\[\frac{{{\mu }_{o}}I}{2\pi r}\]

D)

zero

View Answer
15) An inductive coil has a resistance of 100\[\Omega \]. When an AC signal of frequency 1000 Hz is applied to the coil, the voltage leads the current by 45°. The inductance of the coil is

A)

\[\frac{1}{10\pi }\]

B)

\[\frac{1}{20\pi }\]

C)

\[\frac{1}{40\pi }\]

D)

\[\frac{1}{60\pi }\]

View Answer
16) The intensity of a plane electromagnetic wave is \[\text{5W}/{{\text{m}}^{\text{2}}}.\] It is incident on a perfectly reflecting surface. Find the radiation pressure.

A)

\[3.33\times {{10}^{-9}}N/{{m}^{2}}\]

B)

\[3.33\times {{10}^{-8}}N/{{m}^{2}}\]

C)

\[8.0\times {{10}^{-8}}N/{{m}^{2}}\]

D)

\[8.0\times {{10}^{-9}}N/{{m}^{2}}\]

View Answer
17) A boy stands straight in front of a mirror at a distance of 30 cm from it. He sees his erect image whose height is - of his real height. The mirror he is using, is

A)

plane

B)

convex

C)

concave

D)

plano-concave

View Answer
18) If the wavelength of incident radiation in a photoelectric experiment is decreased, then the

A)

photoelectric current will decrease

B)

photoelectric current will increase

C)

stopping potential will decrease

D)

stopping potential will increase

View Answer
19) The energy associated with a thermal neutron is of the order of

A)

10 MeV

B)

1 keV

C)

0.1 MeV

D)

0.01 eV

View Answer
20) In the depletion region of an unbiased p-n junction diode, there are

A)

only electrons

B)

only holes

C)

both electrons and holes

D)

only fixed ions

View Answer
21) The condition under which vectors \[(\overset{\to }{\mathop{\text{a}}}\,+\overset{\to }{\mathop{\text{b}}}\,)\] and \[(\overset{\to }{\mathop{\text{a}}}\,-\overset{\to }{\mathop{\text{b}}}\,)\] should be at right angles to each other is

A)

\[\overset{\to }{\mathop{\text{a}}}\,\ne \overset{\to }{\mathop{\text{b}}}\,\]

B)

\[\overset{\to }{\mathop{\text{a}}}\,.\overset{\to }{\mathop{\text{b}}}\,=0\]

C)

\[|\overset{\to }{\mathop{\text{a}}}\,|=|\overset{\to }{\mathop{\text{b}}}\,|\]

D)

\[\overset{\to }{\mathop{\text{a}}}\,.\overset{\to }{\mathop{\text{b}}}\,=1\]

View Answer
22) The error in the measurement of radius of the sphere is 0.3%. What is the permissible error in its surface area?

A)

0.6%

B)

1.2%

C)

1.8%

D)

2.4%

View Answer
23) A fielder in a cricket match throws ball from the boundary line to the wicket keeper. The ball describes a parabolic path. Which of the following quantities remain constant during the motion in air? (Neglecting air resistance)

A)

Kinetic energy

B)

Vertical component of velocity

C)

Horizontal component of velocity

D)

Speed

View Answer
24) A thin rod of mass m and length 21 is made to rotate about an axis passing through its centre and perpendicular to it. If its angular velocity changes from 0 to \[\omega \]time t, the torque acting on it is

A)

\[\frac{m{{l}^{2}}\omega }{12t}\]

B)

\[\frac{m{{l}^{2}}\omega }{3t}\]

C)

\[\frac{m{{l}^{2}}\omega }{t}\]

D)

\[\frac{4m{{l}^{2}}\omega }{3t}\]

View Answer
25) A gas is heated at constant pressure. The fraction of heat supplied used for external work is

A)

\[\frac{1}{y}\]

B)

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

C)

\[y-1\]

D)

\[\left( 1-\frac{1}{{{y}^{2}}} \right)\]

View Answer
26) The maximum displacement of the particle executing SHM is 1 cm and the maximum acceleration is \[{{\left( \text{1}.\text{57 } \right)}^{\text{2}}}\text{ cm}/{{\text{s}}^{\text{2}}}.\] Its time period is

A)

0.25 s

B)

4.0 s

C)

1.57 s

D)

3.14 s

View Answer
27) The equation of a wave travelling on a string is \[y=4\sin \left[ \frac{\pi }{2}\left( 8t-\frac{x}{8} \right) \right],\]where x, y are in cm and t in second. The velocity of the wave is

A)

64 cm /s, in - x direction

B)

32 cm /s, in - x direction

C)

32 cm /s, in + x direction

D)

64 cm /s, in + x direction

View Answer
28) In the figure, the equivalent capacitance between A and B is

A)

\[\text{3}.\text{75 }\mu \text{F}\]

B)

\[\text{5}.\text{25 }\mu \text{F}\]

C)

\[\text{6}.\text{5 }\mu \text{F}\]

D)

\[\text{1}0.\text{5 }\mu \text{F}\]

View Answer
29) Two bulbs 100 W, 250 V and 200 W, 250 V are connected in parallel across a 500 V line. Then,

A)

100 W bulb will be fused

B)

200 W bulb will be fused

C)

both bulbs will be fused

D)

no bulb will be fused

View Answer
30) A long solenoid has 20 turns /cm. The current necessary to produce a magnetic field of 20 mT inside the solenoid is approximately

A)

1A

B)

2 A

C)

4 A

D)

8 A

View Answer
31) The inductance of a coil is proportional to

A)

its length

B)

the number of turns

C)

the resistance of the coil

D)

the square of the number of turns

View Answer
32) A photosensitive surface is receiving light of wavelength \[5000\overset{\text{o}}{\mathop{\text{A}}}\,\] at the rate of \[\text{1}{{0}^{-7}}\text{ J}/\text{s}.\] The number of photons ejected per second is

A)

\[\text{2}.\text{5}\times \text{1}{{0}^{12}}\]

B)

\[\text{2}.\text{5}\times \text{1}{{0}^{11}}\]

C)

\[\text{2}.\text{5}\times \text{1}{{0}^{10}}\]

D)

\[\text{2}.\text{5}\times \text{1}{{0}^{9}}\]

View Answer
33) A ball is projected horizontally with a velocity of 4 m/s. The velocity of the ball after 0.7 s is \[\left( \text{g}=\text{1}0\text{m}/{{\text{s}}^{\text{2}}} \right)\]

A)

11 m/s

B)

10 m/s

C)

8 m/s

D)

3 m/s

View Answer
34) Unification of weak and electromagnetic interaction was done by

A)

Einstein

B)

Raman

C)

Salam

D)

Hubble

View Answer
35) Two discs have same mass and same thickness. Their materials are of densities \[{{\rho }_{1}} and {{\rho }_{2}}\]         . The ratio of their moments of inertia about central axis will be

A)

\[{{\rho }_{1}}{{\rho }_{2}}:1\]

B)

\[1:{{\rho }_{1}}{{\rho }_{2}}\]

C)

\[{{\rho }_{1}}:{{\rho }_{2}}\]

D)

\[{{\rho }_{2}}:{{\rho }_{1}}\]

View Answer
36) The Youngs modulus of the material of the wire of length L and radius r is \[\text{Y N}/{{\text{m}}^{\text{2}}}.\]If the length is reduced to L/2 and radius r/2, the Youngs modulus will be

A)

\[\text{Y}/\text{2}\]

B)

\[\text{Y}\]

C)

2\[\text{Y}\]

D)

4\[\text{Y}\]

View Answer
37) A body floats with one-third of its volume outside water and 3/4 of its volume outside another liquid. The density of the other liquid is

A)

\[\frac{9}{4}g/cc\]

B)

\[\frac{4}{3}g/cc\]

C)

\[\frac{8}{3}g/cc\]

D)

\[\frac{3}{8}g/cc\]

View Answer
38) Two soap bubbles have radii in the ratio of 2 : 1. What is the ratio of excess pressures inside them?

A)

1 : 2

B)

1 : 4

C)

2 : 1

D)

4 : 1

View Answer
39) The terminal velocity of small-sized spherical body of radius r falling vertically in a viscous liquid is given by the following proportionality

A)

\[1{{r}^{2}}\]

B)

\[1\,r\]

C)

\[\,r\]

D)

\[{{r}^{2}}\]

View Answer
40) The reading of a manometer fitted to a closed tap is \[\text{3}.\text{5}\times \text{l}{{0}^{\text{5}}}\text{ N}/{{\text{m}}^{\text{2}}}.\] If the valve is opened, the reading of the manometer falls to \[\text{3}\times \text{1}{{0}^{\text{5}}}\text{ N}/{{\text{m}}^{\text{2}}}.\]The velocity of water is

A)

1m/s

B)

10 m/s

C)

100 m/s

D)

0.1 m/s

View Answer
41) 1 L of an ideal gas at \[27{}^\circ C\] is heated at a constant pressure to \[297{}^\circ C\]. Then, the final volume is approximately

A)

1.2 L

B)

1.9 L

C)

19 L

D)

2.4 L

View Answer
42) Coefficient of cubical expansion of water is zero at

A)

\[0{}^\circ C\]

B)

\[4{}^\circ C\]

C)

\[15.5{}^\circ C\]

D)

\[100{}^\circ C\]

View Answer
43) A cylindrical conductor is placed near another positively charged conductor. The net charge acquired by the cylindrical conductor will be

A)

positive only

B)

negative only

C)

zero

D)

either positive or negative

View Answer
44) The ratio of areas between the electron orbits for the first excited state to the ground state for the hydrogen atom is

A)

2 : 1

B)

4 : 1

C)

8 : 1

D)

16 : 1

View Answer
45) An electron, accelerated by a potential difference V, has de-Broglie wavelength\[\lambda \]. If the electron is accelerated by a potential difference 4V, its de-Broglie wavelength will be

A)

\[2\lambda \]

B)

\[4\lambda \]

C)

\[\frac{\lambda }{2}\]

D)

\[\frac{\lambda }{4}\]

View Answer
46) A convex lens of focal length 40 cm is in contact with a concave lens of focal length 25 cm. The power of the combination in dioptre is

A)

-1.5

B)

-6.5

C)

+ 6.5

D)

+ 6.67

View Answer
47) A material particle with a rest mass mo is moving with speed of light c. The de-Broglie wavelength associated is given by

A)

\[\frac{h}{{{m}_{0}}c}\]

B)

\[\frac{{{m}_{0}}c}{h}\]

C)

Zero

D)

infinity

View Answer
48) The impedance of a circuit consists of 3\[\Omega \] resistance and 4\[\Omega \] reactance. The power factor of the circuit is

A)

0.4

B)

0.6

C)

0.8

D)

1.0

View Answer
49) A glass has refractive index 3/2 and water has refractive index 4/3. If the speed of light in glass is \[\text{2}\times \text{1}{{0}^{\text{8}}}\text{ m}/\text{s},\] the speed of light in water in m/s is

A)

\[\text{1}.\text{5}\times \text{l}{{0}^{\text{6}}}\]

B)

\[\text{1}.\text{78}\times \text{l}{{0}^{\text{8}}}\]

C)

\[\text{2}.\text{25}\times \text{l}{{0}^{\text{8}}}\]

D)

\[\text{2}.\text{67}\times \text{l}{{0}^{\text{8}}}\]

View Answer
50) A bulb is placed between two plane mirrors inclined at an angle of 60°.The number of images formed is

A)

5

B)

6

C)

4

D)

3

View Answer
51) The mass of a mole of proton and electron is

A)

\[6.023\times {{10}^{23}}g\]

B)

1.008 g and 0.55 mg

C)

\[9.1\times {{10}^{-28}}kg\]

D)

2 g

View Answer
52) Correct set of four quantum numbers for valence electron of rubidium (Z = 37) is

A)

5, 0, 0, \[+\frac{1}{2}\]

B)

5,1, 0, \[+\frac{1}{2}\]

C)

5, 1, 1, \[+\frac{1}{2}\]

D)

6, 0, 0, \[+\frac{1}{2}\]

View Answer
53) The reaction \[2NO(g)+{{O}_{2}}(g)2N{{O}_{2}}(g)\] is of first order. If volume of reaction vessel is reduced to the rate of reaction would be

A)

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

B)

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

C)

3 times

D)

6 times

View Answer
54) Which of the following species has the highest electron affinity?

A)

F

B)

O

C)

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

D)

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

View Answer
55) The largest number of molecules is in

A)

34 g of water

B)

28 g of \[C{{O}_{2}}\]

C)

46 g of \[C{{H}_{3}}OH\]

D)

54 g of \[{{N}_{2}}{{O}_{5}}\]

View Answer
56) Gold is extracted by hydrometallurgical process based on its property

A)

of being electropositive

B)

of being less reactive

C)

to form complexes which are water soluble

D)

to form salts which are water soluble

View Answer
57) Argentite is a mineral of

A)

copper

B)

silver

C)

platinum

D)

aluminium

View Answer
58) As the s-character of hybridised orbital increases, the bond angle

A)

increases

B)

decrease

C)

becomes zero

D)

does not change

View Answer
59) In the calcium fluoride structure the coordination number of the cation and anions are respectively

A)

6, 6

B)

8, 4

C)

4,4

D)

4,8

View Answer
60) Which of the following liquid pairs shows a positive deviation from Raoults law?

A)

Water-nitric acid

B)

Benzene-methanol

C)

Water-hydrochloric acid

D)

Acetone-chloroform

View Answer
61) What should be the freezing point of aqueous solution containing 17 g of \[{{C}_{2}}{{H}_{5}}OH\] in 1000 g of water (water \[{{k}_{f}}={{1.86}^{o}}kg\,mo{{l}^{-1}}\]) ?

A)

\[-{{0.69}^{o}}C\]

B)

\[{{0.34}^{o}}C\]

C)

\[{{0.0}^{o}}C\]

D)

\[{{0.24}^{o}}C\]

View Answer
62) A radioisotope will not emit

A)

gamma and alpha rays simultaneously

B)

gamma rays only

C)

alpha and beta rays simultaneously

D)

beta and gamma rays simultaneously

View Answer
63) Hardness of water is due to presence of salts of

A)

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

B)

\[C{{a}^{2+}}\] and \[M{{g}^{2+}}\]

C)

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

D)

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

View Answer
64) What is the role of a catalyst in a reaction?

A)

It lowers the activation energy

B)

It increases the activation energy

C)

It affects the free energy change

D)

It affects the enthalpy change

View Answer
65) Noble gas are adsorbed by

A)

anhydrous calcium chloride

B)

ferric hydroxide

C)

cone. \[{{H}_{2}}S{{O}_{4}}\]

D)

activated coconut charcoal

View Answer
66) A cylinder of 5 L capacity, filled with air at NTP is connected with another evacuated cylinder of 30 L of capacity. The resultant air pressure in both the cylinders will

A)

10.8 cm of Hg

B)

14.9 cm of Hg

C)

21.8 cm of Hg

D)

38.8 cm of Hg

View Answer
67) The right order of the solubility of sulphates of alkaline earth metals in water, is

A)

Be > Ca > Mg > Ba > Sr

B)

Mg > Be > Ba > Ca > Sr

C)

Be > Mg > Ca > Sr > Ba

D)

Mg > Ca > Ba > Be > Sr

View Answer
68) In Halls process, the main reagent is mixed with

A)

NaF

B)

\[N{{a}_{3}}Al{{F}_{6}}\]

C)

\[Al{{F}_{3}}\]

D)

None of these

View Answer
69) Inorganic graphite is

A)

\[{{B}_{3}}{{N}_{3}}{{H}_{6}}\]

B)

\[{{B}_{3}}{{N}_{3}}\]

C)

SiC

D)

\[Fe{{(CO)}_{5}}\]

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

A)

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

B)

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

C)

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

D)

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

View Answer
71) Which of the following ions has the least magnetic moment?

A)

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

B)

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

C)

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

D)

\[F{{e}^{2+}}\]

View Answer
72) In solid \[CuS{{O}_{4}}\,.\,\,5{{H}_{2}}O\], copper is coordinated to

A)

five water molecules

B)

four water molecules

C)

one sulphate anion

D)

one water molecule

View Answer
73) Which of the following is a local anesthetic?

A)

Diazepam

B)

Procaine

C)

Chlorophenicol

D)

Penicillin-G

View Answer
74) Which of the following is not an actinide?

A)

Curium

B)

Californium

C)

Uranium

D)

Terbium

View Answer
75) The oxidation state of chlorine in \[KCl{{O}_{4}}\] is

A)

-1

B)

+1

C)

+7

D)

-7

View Answer
76) Glucose and mannose are

A)

epimers

B)

anomers

C)

ketohexoses

D)

disaccharide

View Answer
77) Proteins when heated with cone. \[HN{{O}_{3}}\], give a yellow colour. This is

A)

oxidising test

B)

xanthoprotic test

C)

Hoppes test

D)

acid-base test

View Answer
78) Which reagent can be used to identify nickel ion?

A)

Resorcinol

B)

Dimethyl glyoxime [DMG]

C)

Diphenyl benzidine

D)

Potassium ferrocyanide

View Answer
79) \[Mn{{O}_{2}}\] and \[{{H}_{2}}S{{O}_{4}}\] are added to NaCl. The greenish yellow gas liberated is

A)

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

B)

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

C)

\[{{N}_{3}}\]

D)

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

View Answer
80) Lassaignes test for the detection of nitrogen fails in

A)

\[N{{H}_{2}}CONHN{{H}_{2}}.\,HCl\]

B)

\[N{{H}_{2}}.\,\,N{{H}_{2}}.\,\,HCl\]

C)

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

D)

\[{{C}_{6}}{{H}_{5}}NHN{{H}_{2}}.\,\,HCl\]

View Answer
81) The IUPAC name of the compound \[C{{H}_{3}}-CH({{C}_{2}}{{H}_{5}})-CH=CH-C{{H}_{3}}\] is

A)

4-ethyl-2-pentene

B)

4-methyl-2-hexene

C)

3-ethyl-2-pentene

D)

2-ethyl-3-pentene

View Answer
82) Which is the most stable carbocation?

A)

iso-propyl

B)

triphenyl methyl cation

C)

Ethyl cation

D)

\[\pi \] propyl cation

View Answer
83) Which one of the following is least reactive in a nucleophilic substitution reaction?

A)

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

B)

\[C{{H}_{2}}=CHC{{H}_{2}}Cl\]

C)

\[{{(C{{H}_{3}})}_{3}}C-Cl\]

D)

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

View Answer
84) Octane number can be changed by

A)

isomerisation

B)

alkylation

C)

cyclisation

D)

All of these

View Answer
85) Which one of the following compounds does not form an ozonide?

A)

Ethene

B)

Propyne

C)

Propene

D)

Propane

View Answer
86) The synthetic polymer which resembles natural rubber is

A)

neoprene

B)

chloroprene

C)

glyptal

D)

nylon

View Answer
87) If \[{{K}_{c}}\] is the equilibrium constant for the formation of \[N{{H}_{3}}\]. The dissociation constant of ammonia under the same temperature will be

A)

\[{{K}_{c}}\]

B)

\[\sqrt{{{K}_{c}}}\]

C)

\[K_{c}^{2}\]

D)

\[\frac{1}{{{K}_{c}}}\]

View Answer
88) If solubility product for \[HgS{{O}_{4}}\] is \[6.4\times {{10}^{-5}}\], then solubility of the salt is

A)

\[8\times {{10}^{-3}}\]

B)

\[8\times {{10}^{-6}}\]

C)

\[6.4\times {{10}^{-5}}\]

D)

\[6.4\times {{10}^{-3}}\]

View Answer
89) The atomic weight of Al is 27. When a current of 5 F is passed through a solution of \[A{{l}^{3+}}\]ions, the weight of Al deposited is

A)

27 g

B)

36 g

C)

45 g

D)

39 g

View Answer
90) Given, standard electrode potentials of following reactions, \[F{{e}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Fe\,;\,\,{{E}^{o}}=-0.440\,\,V\] \[F{{e}^{3+}}+3{{e}^{-}}\xrightarrow{{}}Fe\,;\,\,{{E}^{o}}=-0.0.36\,\,V\] The standard electrode potential \[({{E}^{o}})\] for \[F{{e}^{3+}}+{{e}^{-}}\xrightarrow{{}}F{{e}^{2+}}\], is

A)

-0.476 V

B)

-0.404 V

C)

+ 0.404 V

D)

+ 0.772 V

View Answer
91) The value of \[\Delta H-\Delta E\] for the following reaction at \[{{27}^{o}}C\] will be\[2N{{H}_{3}}(g)\xrightarrow{{}}{{N}_{2}}(g)=3{{H}_{2}}(g)\]

A)

\[8.314\times 273\times (-2)\]

B)

\[8.314\times 300\times (-2)\]

C)

\[8.314\times 27\times (-2)\]

D)

\[8.314\times 300\times (-2)\]

View Answer
92) Azo dye is prepared by the coupling of phenol and

A)

diazonium chloride

B)

o-nitroaniline

C)

benzoic acid

D)

chlorobenzene

View Answer
93) Fruity smell is given by

A)

esters

B)

alcohols

C)

chloroform

D)

acid anhydrides

View Answer
94) Reimer-Tiemann reaction involves a

A)

carbonium ion intermediate

B)

carbene intermediate

C)

carbanion intermediate

D)

free radical intermediate

View Answer
95) When acetaldehyde is heated with Fehling solution, it gives a red precipitate of

A)

Cu

B)

CuO

C)

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

D)

\[Cu{{(OH)}_{2}}\]

View Answer
96) Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid?

A)

Butanal

B)

Benzaldehyde

C)

Phenol

D)

Benzoic acid

View Answer
97) The alcohol which easily reacts with cone. HCl is

A)

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

B)

\[{{(C{{H}_{3}})}_{3}}-C-OH\]

C)

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

D)

\[{{(C{{H}_{3}})}_{2}}-CH-C{{H}_{2}}OH\]

View Answer
98) At low temperature, phenol reacts with \[B{{r}_{2}}\] in \[C{{S}_{2}}\] to form

A)

m-bromophenol

B)

o-and p-bromophenol

C)

p-bromophenol

D)

2, 4, 6-tribromophenol

View Answer
99) What will be the product in the following reaction?

A)



B)

C)



D)

View Answer
100) The principle buffer present in human blood is

A)

\[N{{a}_{2}}C{{O}_{3}}+N{{a}_{2}}HP{{O}_{4}}\]

B)

\[{{H}_{3}}P{{O}_{4}}+Na{{H}_{2}}P{{O}_{4}}\]

C)

\[{{H}_{2}}C{{O}_{3}}+HCO_{3}^{-}\]

D)

\[N{{a}_{2}}HP{{O}_{4}}+N{{a}_{3}}P{{O}_{4}}\]

View Answer
101) Lysosomes are the reservoirs (store house) of

A)

hydrolytic enzymes

B)

secretory glycoproteins

C)

RNA and protein

D)

fats (or sugars or ATP)

View Answer
102) Which one of the following is correctly matched pair of a certain plant family and its one example?

A)

Malvaceae         -           Cotton

B)

Leguminosae    -           Mango (or sunflower)

C)

Cucurbitaceae    -           Orange

D)

Brassicaceae    -           Wheat

View Answer
103) Melatonin is secreted by

A)

skin

B)

thymus

C)

pituitary

D)

pineal gland

View Answer
104) Which one of the following is a skull bone?

A)

Coracoid

B)

Arytaenoid

C)

Adas

D)

Pterygoid

View Answer
105) Which one of the following amino acids is an essential part of human diet?

A)

Glycine

B)

Phenylalanin

C)

Serine

D)

Aspartic acid

View Answer
106) A water fern which is used as a green manure in rice fields is

A)

Salvinia

B)

Mucor

C)

Aspergillus

D)

Azolla

View Answer
107) In which of the following animal, post anal tail is found?

A)

Earthworm

B)

Lower invertebrate

C)

Scorpion

D)

Snake

View Answer
108) Apogamy is

A)

reproduction of virus

B)

failure of fusion of gametes

C)

development of bacteria

D)

loss of function of reproduction

View Answer
109) Male XX and female XY sometime occur due to

A)

deletion

B)

transfer of segments in X and Y chromosomes

C)

aneuploidy

D)

hormonal imbalance

View Answer
110) During an injury nasal septum gets damaged. For its recovery which cartilage is preferred?

A)

Elastic cartilage

B)

Hyaline cartilage

C)

Calcified cartilage

D)

Fibrous cartilage

View Answer
111) Darwins finches provide an excellent evidence in favour of organic evolution. These are related to which of the following evidences?

A)

Embryology

B)

Palaeontology (or fossils)

C)

Anatomy

D)

Biogeography (or geographic distribution)

View Answer
112) Which is a reducing sugar?

A)

Galactose

B)

Gluconic acid

C)

p-methyl galactoside

D)

Sucrose

View Answer
113) What will happen if ligaments are cut or broken?

A)

Bones will move freely at joints

B)

No movement at joint

C)

Bone will become unfixed

D)

Bone will become fixed

View Answer
114) Reason of fast speciation in present day crop plants is

A)

mutation

B)

isolation

C)

polyploidy

D)

sexual reproduction

View Answer
115) Which bacteria are utilized in gobar gas plant?

A)

Methanogenes

B)

Nitrifying bacteria

C)

Ammonifying bacteria

D)

Denitrifying bacteria

View Answer
116) In photosynthesis energy from light reaction to dark reaction is transferred in the form of

A)

ADP

B)

ATP

C)

RuBP

D)

Chlorophyll

View Answer
117) In a DNA percentage of thymine is 20%. What is the percentage of guanine?

A)

20%

B)

40%

C)

30%

D)

60%

View Answer
118) ELISA (Enzyme Linked Immuno Sorbent Assay) is an import immunological method which is employed to detect and measure antigens or antibodies. Enzyme reacts on substrate to produce a colour in a positive test. ELISA is used to detect viruses where the key reagent is

A)

DNA probe

B)

RNAse

C)

alkaline phosphatase

D)

catalase

View Answer
119) If Henles loop were absent from mammalian nephron which of the following is to be expected?

A)

The urine will be more concentrated

B)

The urine will be more dilute

C)

There will be no urine formation

D)

There will be hardly any change in the quality and quantity of urine formed

View Answer
120) Degeneration of a genetic code is attributed to the

A)

entrire codon

B)

third member of a codon

C)

first member of a codon

D)

second member of a codon

View Answer
121) You are required to draw blood from patient and to keep it in a test tube for analysis of blood corpuscles and plasma. You are also provided with the following four types of test tubes. Which of them will you not use for the purpose?

A)

Test tube containing calcium bicarbonate

B)

Chilled test tube

C)

Test tube containing heparin

D)

Test tube containing sodium oxalate

View Answer
122) In 1984, the Bhopal gas tragedy took place because methyl isocyanate

A)

reacted with DDT

B)

reacted with ammonia

C)

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

D)

reacted with water

View Answer
123) Lack of independent assortment of two genes A and B in fruit fly Drosophila is due to

A)

repulsion

B)

recombination

C)

linkage

D)

crossing over

View Answer
124) In your opinion which is the most effective way to conserve the plant diversity of an area?

A)

By tissue culture method

B)

By creating biosphere reserve

C)

By creating botanical garden

D)

By developing seed bank

View Answer
125) "Continuity of germplasm" theory was given by

A)

Hugo de Vries

B)

Weismann

C)

Darwin

D)

Lamarck

View Answer
126) Grey spots of oat are caused by deficiency of

A)

Mn

B)

Fe

C)

Cu

D)

Zn

View Answer
127) Pattern baldness moustaches and beard in human males are examples of

A)

sex differentiating traits

B)

sex determining traits

C)

sex linked traits

D)

sex limited traits

View Answer
128) For retting of jute the fermenting microbe used is

A)

Helicobastor pylori

B)

Methophilic bacteria

C)

Streptococcus lactin

D)

Butyric acid bacteria

View Answer
129) Ectophloic siphonostele is found in

A)

Adiantum and Cucurbitaceae

B)

Osmunda and Equisetum

C)

Marsilea and Botrychium

D)

Dicksonia and Maiden hair fern

View Answer
130) Which one of the following does not act as a neurotrasmitter?

A)

Acetylcholine

B)

Epinephrine

C)

Norepinephrine

D)

Cortisone

View Answer
131) The respiratory quotient (RQ) of a germinating castor seed is

A)

equal to one

B)

greater than one

C)

less than one

D)

equal to zero

View Answer
132) What is left, when bath-sponges dries up?

A)

Spicules

B)

Spongin fibres

C)

Tentacles

D)

Holdfast

View Answer
133) Enterokinase converts

A)

trypsinogen to trypsin

B)

pepsinogen to pepsin

C)

chymotrypsin to pepsinogen

D)

pepsin to chymotrypsin

View Answer
134) In which of the following stage, the chromo- some is single thin and like long thread?

A)

Leptotene

B)

Zygotene

C)

Pachytene

D)

Diakinesis

View Answer
135) \[{{C}_{4}}\]plants differ from \[{{C}_{3}}\]plants in respect to

A)

number of ATP used

B)

substrate which accept the \[C{{O}_{3}}\]molecules

C)

the final product

D)

number of ATP formed

View Answer
136) Resting potential of a nerve is

A)

+70 millivolt

B)

+30 millivolt

C)

-30 millivolt

D)

-70 millivolt

View Answer
137) Gonads of Obelia occur in

A)

on blastocyst

B)

in hydrula stage

C)

radial canals of medusa

D)

bases of tentacles of medusa

View Answer
138) Bombykol or gyplure is a

A)

drug

B)

hormone

C)

antibiotic

D)

pheromone

View Answer
139) The term "niche" of a species refers to

A)

specific and habitual function

B)

specific place where an organism lives

C)

competitive power of an organism

D)

specific function of an organism

View Answer
140) The correct sequence of food chain is

A)

grass\[\to \] wolf\[\to \] deer\[\to \] buffalo

B)

bacteria \[\to \]grass \[\to \]rabbit \[\to \]wolf

C)

grass \[\to \]insect \[\to \]bird \[\to \]snake

D)

grass \[\to \]snake \[\to \]insect \[\to \]deer

View Answer
141) The number of floating ribs in the human body is

A)

6 pairs

B)

5 pairs

C)

3 pairs

D)

2 pairs

View Answer
142) Myoglobin is present in

A)

all muscle fibres

B)

white muscle fibres only

C)

red muscle fibres only

D)

both white and red muscle fibres

View Answer
143) A couple has 6 children 5 are girls and 1 is boy. The percentage of having a girl on next time is

A)

10%

B)

20%

C)

50%

D)

100%

View Answer
144) The functional xylem of dicot tree is

A)

sap wood

B)

hard wood

C)

heart wood

D)

autumn wood

View Answer
145) In which of the following there is no defect in the sex chromosome?

A)

Turners syndrome

B)

Downs syndrome

C)

Colour blindness

D)

Klinefelters syndrome

View Answer
146) Botanical name of sanjeevani is

A)

Selaginella chrysocaulos

B)

Selaginella bryopteris

C)

Selaginella chrysorhizos

D)

None of the above

View Answer
147) The embryonic membrane involved in the formation of placenta in female is

A)

yolk sac

B)

allantosis

C)

amnion

D)

chorion

View Answer
148) Elbow joint is

A)

ball and socket

B)

hinge joint

C)

pivot joint

D)

saddle joint

View Answer
149) Agar- agar is obtained from

A)

fungi

B)

algae

C)

bacteria

D)

lichens

View Answer
150) Condom "Nirodh" formed by

A)

Hindustan Liver Ltd

B)

Hindustan Latex Ltd

C)

Both (a) and (b)

D)

None of the above

View Answer
151) Spider web is formed by a fluid secreted by its

A)

abdominal gland

B)

salivary gland

C)

cephalothorax

D)

None of the above

View Answer
152) Cellulose is a polymer of

A)

\[\text{ }\!\!\alpha\!\!\text{ -}\]glucose

B)

\[\text{ }\!\!\alpha\!\!\text{ -}\]fructose

C)

\[\text{ }\!\!\beta\!\!\text{ -}\]glucose

D)

\[\text{ }\!\!\beta\!\!\text{ -}\]fructose

View Answer
153) The point in eye of mammals from which optic nerves and blood vessels leaves the eye ball is

A)

yellow spot

B)

blind spot

C)

pars optica

D)

None of these

View Answer
154) Which one is a neem product used as insect repellent?

A)

Azadirachtin

B)

Rotenon

C)

Parathione

D)

Endrin

View Answer
155) Disease associated with secretion of toxin is

A)

tetanus

B)

TB

C)

food poisoning

D)

AIDS

View Answer
156) Cork tissue arises from

A)

periderm

B)

phellogen

C)

pelloderm

D)

phellum

View Answer
157) An autoimmune disease is

A)

AIDS

B)

haemophilia

C)

allergy

D)

myasthenia gravis

View Answer
158) Cerebral hemispheres of rat are connected by

A)

corpus luteum

B)

corpus callosum

C)

corpus albicans

D)

corpus spongiosum

View Answer
159) The polysaccharide portion of a proteoglycan present in the matrix of cartilage is known as

A)

ossein

B)

cartilin

C)

casein

D)

chondroitin

View Answer
160) The activity of sucdnate dehydrogenase is inhibited by

A)

pyruvate

B)

glycolate

C)

melonate

D)

phosphoglycerate

View Answer
161) The nucleolus is the site of formation of

A)

spindle fibres

B)

chromosomes

C)

ribosomes

D)

peroxysomes

View Answer
162) Critical state of disease is called

A)

acme

B)

acromion

C)

acholin

D)

None of these

View Answer
163) The total number of cells in the human body is at least

A)

\[100\times {{10}^{-12}}\]

B)

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

C)

\[{{10}^{9}}\]

D)

None of these

View Answer
164) Thread like protoplasmic projection on the free surface of absorptive cells (such as intestinal cells) are called

A)

plasmodesmata

B)

microfilaments

C)

cilia

D)

None of the above

View Answer
165) Deposition of uric acid crystals within the synovial joint causes

A)

osteoarthritis

B)

rheumatoid arthritis

C)

gout

D)

paralysis

View Answer
166) Dahlia and asparagus possess

A)

stilt roots

B)

fusiform roots

C)

tuberous roots

D)

fasciculated roots

View Answer
167) The distance between two base pairs in DNA is

A)

34 \[{{A}^{o}}\]

B)

3.4 \[{{A}^{o}}\]

C)

0.34 \[{{A}^{o}}\]

D)

20 \[{{A}^{o}}\]

View Answer
168) Five gram moles of glucose on complete oxidation releases

A)

3430 kcal of energy

B)

343 kcal of energy

C)

2020 kcal of energy

D)

430 kcal of energy

View Answer
169) Hybridoma is a biotechnique which involves fusion of

A)

B-cell with T-cell

B)

T-cell with spleen cell

C)

spleen cell with myeloma cell

D)

myeloma cell with B-cell

View Answer
170) The quickest method of plant breeding is

A)

introduction

B)

selection

C)

hybridization

D)

mutation breeding

View Answer
171) X- chromosomes of female in a sex- linked inheritance case can be passed on to

A)

only female progeny

B)

only male progeny

C)

only in grand daughter

D)

male and female progeny

View Answer
172) Spadix is an inflorescene found only in

A)

monocots

B)

dicots

C)

Both (a) and (b)

D)

None of the above

View Answer
173) Botryoidal tissue is found in

A)

Hirudinea

B)

Polychaeta

C)

Oligochaeta

D)

All of these

View Answer
174) Pollination by bats is called

A)

anemophily

B)

hydrophily

C)

ornithophily

D)

None of these

View Answer
175) Schufmers granules are found in

A)

sporozoit

B)

trophozoite

C)

merozoite

D)

schizont

View Answer
176) Which zone of a lake has photosynthetic organsim?

A)

Profundal zone

B)

Littoral zone

C)

Limmetic zone

D)

All of the above

View Answer
177) Interferon- \[\beta \] is also termed as

A)

immune interferon

B)

fibroblast interferon

C)

leucocyte interferon

D)

anti-immune interferon

View Answer
178) Terai forest is

A)

tropical forest

B)

coniferous forest

C)

deciduous forest

D)

temperate deciduous forest

View Answer
179) Waggle dance in honeybees tells about

A)

direction of food source

B)

distance of food source

C)

Both (a) and (b)

D)

None of the above

View Answer
180) Which of the following has the highest pH?

A)

Gastric juice

B)

Bile

C)

Pancreatic juice

D)

Secretions of the intestinal glands

View Answer
181) A coordinated unit which controls the genetic expression is known as

A)

cistron

B)

recon

C)

operon

D)

muton

View Answer
182) Ultrasound is produced by

A)

lead bead

B)

lead zirconate

C)

lithium chloride

D)

None of the above

View Answer
183) The pioneer country in the production of fuel-alcohol is

A)

Saudi Arabia

B)

Iran, Iraq

C)

Brazil

D)

Japan

View Answer
184) Who stated that human population grows geometrically?

A)

Malthus

B)

Darwin

C)

Cannon

D)

Lamarck

View Answer
185) A disease caused by eating fish contaminated by industrial waste containing mercury compounds is known as

A)

Brights disease

B)

Minamata disease

C)

Hashimotos disease

D)

Osteosclerosis

View Answer
186) A cybrid is hybrid carrying

A)

genomes and cytoplasms of two different plants

B)

cytoplasms of two different plants cytoplasms of two different plants but

C)

genome of one plant

D)

genomes of two different plants

View Answer
187) The "witches broom" is caused by a

A)

virus

B)

mycoplasma

C)

bacterium

D)

fungus

View Answer
188) Leaf in young condition in fern is called

A)

scale leaf

B)

sporophyll

C)

circinate ptyris

D)

None of these

View Answer
189) What is common in photosynthesis and respiration?

A)

Light energy

B)

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

C)

Cytochromes

D)

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

View Answer
190) The disease caused by virus which is 42 nm in size and contians double stranded DNA is

A)

Hepatitis A

B)

AIDS

C)

Hepatitis B

D)

Leprosy

View Answer
191) Smell of urine is due to the

A)

urochrome

B)

urinode

C)

urea

D)

melanin

View Answer
192) Hormone which is responsible for contraction of uterus is

A)

vasopressin

B)

oxytocin

C)

thyrotropin

D)

gonadotropin

View Answer
193) The existence of two types of leaves in the same plant is called

A)

phyllody

B)

phylloclade

C)

heterophylly

D)

heterosis

View Answer
194) Sertoli cells are involved in

A)

excretion

B)

nutrition of sperms

C)

respiration

D)

All of the above

View Answer
195) The name given to the fossil hominid of Shivalik hills in India was

A)

Ramapithecus

B)

Sinanthropus

C)

Pithecanthropus

D)

Australopithecus

View Answer
196) Empty glumes are

A)

petals

B)

bracts

C)

anthers

D)

carpels

View Answer
197) Hexose monophosphate pathway takes place in

A)

ER

B)

cristae

C)

cytoplasm

D)

mitochondrial matrix

View Answer
198) CFCL is situated at

A)

Delhi

B)

Faridabad

C)

Mumbai

D)

Amritsar

View Answer
199) Congression is a phenomenon of

A)

movement of sister chromatids towards the poles

B)

pairing of homologous chromosomes

C)

separation of paired chromosomes

D)

bringing the chromosomes on equator of spindle apparatus

View Answer
200) Kappa particles are

A)

protozoans parasite whose multipli- cation is controlled by host metabolites

B)

viral particles capable of self perpetuation in host cytoplasm

C)

endosymbiont representing gram negative bacteria species

D)

sub microscopic granules formed by the folding of naked DNA

View Answer

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