Solved papers for AMU Medical AMU Solved Paper-2005

AMU Solved Paper-2005 Total Questions - 200

1) Three blocks of masses \[{{m}_{1}},\]\[{{m}_{2}}\] and \[{{m}_{3}}\]are connected by massless strings as shown on africtionless table. They are pulled with a force of 40 then tension T: will be

A)

10N

B)

20 N

C)

32 N

D)

40 N

View Answer
2) A rocket of mass 1000 kg is to be projected vertically upwards. The gases are exhausted vertically downwards with velocity 100 m/s with respect to the rocket. What is the minimum rate of burning of fuel, so as to just lift the rocket upwards against the gravitational attraction? \[\left( \text{Take g}=\text{ 1}0\text{ m}/{{\text{s}}^{\text{2}}} \right).\]

A)

50 kg/s

B)

100 kg/s

C)

200 kg/s

D)

400 kg/s

View Answer
3) A force of 10 N acts on a body of mass 20 kg for 10 s. The change in its momentum is

A)

50kg-m/s

B)

100 kg-m/s

C)

300 kg-m/s

D)

1000 kg-m/s

View Answer
4) If an iron ball and a wooden ball of the same radius are released from a height h in vacuum, then time taken by both of them to reach the ground will be

A)

zero

B)

unequal

C)

roughly equal

D)

exactly equal

View Answer
5) A ball of mass 0.25 kg attached to the ends of a string of length 1.96 m is rotating in a horizontal circle. The string will break, if tension is more than 25 N. What is the maximum velocity with which the ball can be rotated ?

A)

3 m/s

B)

5 m/s

C)

9 m/s

D)

14 m/s

View Answer
6) In uniform circular motion, the factor that remains constant is

A)

acceleration

B)

momentum

C)

kinetic energy

D)

linear velocity

View Answer
7) A projectile is fired at 30° with momentum p. Neglecting friction, the change in kinetic energy, when it returns back to the ground, will be

A)

zero

B)

30%

C)

60%

D)

100%

View Answer
8) If a car at rest accelerates uniformly and attains a speed of 72 km/h in 10 s, then it covers a distance of

A)

50m

B)

100m

C)

200m

D)

400m

View Answer
9) Suppose refractive index is given as \[\mu =A+\frac{B}{{{\lambda }^{2}}},\]where A and B are constants and is wavelength then the dimensions of B are same as that of

A)

wavelength

B)

pressure

C)

area

D)

volume

View Answer
10) We wish to see inside an atom. Assuming the atom to have a diameter of 100 pm, this means that one must be able to resolve a width of say 10 pm. If an electron microscope is used, the minimum electron energy required is about

A)

15keV

B)

1.5 keV

C)

150 keV

D)

1.5MeV

View Answer
11) A particle is moving under the influence of a force which is fixed in magnitude and acting at an angle 9 in the direction of motion. The path described by the particle is

A)

a circle

B)

an ellipse

C)

a parabola

D)

a straight line

View Answer
12) 300 J of work is done in sliding a 2 kg block up an inclined plane of height 10 m. The work done against friction is \[\left( \text{Take g}=\text{ 1}0\text{ m}/{{\text{s}}^{\text{2}}} \right)\]

A)

zero

B)

100 J

C)

200 J

D)

300 J

View Answer
13) The torque offeree \[~\overset{\to }{\mathop{F}}\,=(\text{2}\overset{\hat{\ }}{\mathop{\text{i}}}\,-\text{3}\overset{\hat{\ }}{\mathop{\text{j}}}\,+\text{4}\overset{\hat{\ }}{\mathop{\text{k}}}\,\text{ N}\]acting at a point \[\overset{\to }{\mathop{\text{r}}}\,=\left( \text{3}\overset{\hat{\ }}{\mathop{\text{i}}}\,\text{ }+\text{ 2}\overset{\hat{\ }}{\mathop{\text{i}}}\,+\text{3}\overset{\hat{\ }}{\mathop{\text{k}}}\, \right)\text{ m}\]about origin is w

A)

\[\text{6}\overset{\hat{\ }}{\mathop{\text{i}}}\,-\text{6}\overset{\hat{\ }}{\mathop{\text{j}}}\,\text{+12}\overset{\hat{\ }}{\mathop{\text{k}}}\,\text{ N}-\text{m}\]

B)

\[-\text{6}\overset{\hat{\ }}{\mathop{\text{i}}}\,\text{+6}\overset{\hat{\ }}{\mathop{\text{j}}}\,\text{-12}\overset{\hat{\ }}{\mathop{\text{k}}}\,\text{ N}-\text{m}\]

C)

\[17\overset{\hat{\ }}{\mathop{\text{i}}}\,\text{-6}\overset{\hat{\ }}{\mathop{\text{j}}}\,\text{-13}\overset{\hat{\ }}{\mathop{\text{k}}}\,\text{ N}-\text{m}\]

D)

\[-17\overset{\hat{\ }}{\mathop{\text{i}}}\,\text{+6}\overset{\hat{\ }}{\mathop{\text{j}}}\,\text{+13}\overset{\hat{\ }}{\mathop{\text{k}}}\,\text{ N}-\text{m}\]

View Answer
14) A machine which is 75% efficient, uses 12 J of energy in lifting 1 kg mass through a certain distance. The mass is then allowed to fall through the same distance. The velocity at the end of its fall is

A)

\[\sqrt{\text{l2}}\text{m}/\text{s}\]

B)

\[\sqrt{18}\text{m}/\text{s}\]

C)

\[\sqrt{24}\text{m}/\text{s}\]

D)

\[\sqrt{32}\text{m}/\text{s}\]

View Answer
15) In an equilateral triangle ABC, \[{{F}_{1}},{{F}_{2}}\]and \[{{F}_{3}}\]are three forces acting along the sides AB, BC and AC as shown in the given figure. What should be the magnitude ofF3, so that the total torque about \[O\] is zero ?

A)

2 N

B)

4 N

C)

6 N

D)

8 N

View Answer
16) The rotational kinetic energy of a body is KErot and its moment of inertia is I. The angular momentum of body is

A)

\[IK{{E}_{rot}}\]

B)

\[2\sqrt{IK{{E}_{rot}}}\]

C)

\[\sqrt{2I\,\,K{{E}_{rot}}}\]

D)

\[2I\,\,K{{E}_{rot}}\]

View Answer
17) A small steel sphere of mass m is tied to a string of length r and is whirled in a horizontal circle with a uniform angular velocity 2\[\omega \] The string is suddenly pulled, so that radius of the circle is halved. The new angular velocity will be

A)

2\[\omega \]

B)

4\[\omega \]

C)

6\[\omega \]

D)

8\[\omega \]

View Answer
18) A uniform disc of mass M and radius R is mounted on an axle supported in frictionless bearings. A light cord is wrapped around the rim of the disc and a steady downward pull T is exerted on the cord. The angular acceleratio- of the disc is

A)

\[\frac{MR}{2T}\]

B)

\[\frac{2T}{MR}\]

C)

\[\frac{T}{MR}\]

D)

\[\frac{MR}{T}\]

View Answer
19) If the rotational speed of earth is increased then weight of a body at the equator

A)

increases

B)

decreases

C)

becomes double

D)

does not change

View Answer
20) The earth revolves around the sun in 1 yr. If distance between them becomes double, the new time period of revolution will be

A)

\[4\sqrt{2}yr\]

B)

\[2\sqrt{2}yr\]

C)

4 yr

D)

8 yr

View Answer
21) The orbital velocity of an artificial satellite in a circular orbit just above the earths surface is Vg. The orbital velocity of a satellite orbiting at an altitude of half of the radius, is

A)

\[\frac{3}{2}{{v}_{o}}\]

B)

\[\frac{2}{3}{{v}_{o}}\]

C)

\[\sqrt{\frac{2}{3}}{{v}_{o}}\]

D)

\[\sqrt{\frac{3}{2}}{{v}_{o}}\]

View Answer
22) The amplitude of an oscillating simple pendulum is 10 cm and its time period is 4 s. Its speed after 1 s when it passes through its equilibrium position is

A)

zero

B)

2.0 m/s

C)

0.3 m/s

D)

0.4 m/s

View Answer
23) A simple second pendulum is mounted in arocket. Its time period will decrease when the rocket is

A)

moving up with uniform velocity

B)

moving up with uniform acceleration

C)

moving down with uniform acceleration

D)

moving around the earth in geostationary orbit

View Answer
24) A child swinging on a swing in a sitting position, stands up, then the time period of the swing will

A)

increase

B)

decrease

C)

remain the same

D)

increase, if the child is long and decrease, if the child is short

View Answer
25) The phenomena arising due to the superposition of waves is/are

A)

beats

B)

stationary waves

C)

Lissajous figures

D)

All of the above

View Answer
26) A vehicle with horn of frequency v is moving with a velocity of 30 m/s in a direction perpendicular to the line joining the observer and the vehicle. The observer perceives the sound to have a frequency \[\left( \text{v }+\text{ }{{\text{v}}_{\text{1}}} \right).\] If the sound velocity in air is 30 m/s, then

A)

\[{{v}_{1}}=0\]

B)

\[{{v}_{1}}=0.1v\]

C)

\[{{v}_{1}}=-0.1v\]

D)

\[{{v}_{1}}=10\,v\]

View Answer
27) A ball falling in a lake of depth 200 m shows 0.1% decrease in its volume at the bottom. What is the bulk modulus of the ball material? \[\left( \text{Take density of water }=\text{ 1}000\text{ kg}/{{\text{m}}^{\text{3}}} \right)\]

A)

\[19.6\times {{10}^{8}}N/{{m}^{2}}\]

B)

\[19.6\times {{10}^{-10}}N/{{m}^{2}}\]

C)

\[19.6\times {{10}^{10}}N/{{m}^{2}}\]

D)

\[19.6\times {{10}^{-8}}N/{{m}^{2}}\]

View Answer
28) At what temperature, hydrogen molecules will escape from the earths surface ? (Take mass of hydrogen molecule \[=\text{ }0.\text{34}\times \text{1}{{0}^{-26}}\text{ kg},\] Boltz-mann constant \[=\text{1}.\text{38}\times \text{l}{{0}^{-23}}\text{ J}/\text{K},\] radius of earth \[=\text{ 6}.\text{4}\times \text{1}{{0}^{\text{6}}}\text{ m}\]and acceleration due to gravity \[=\text{9}.\text{8 m}/{{\text{s}}^{\text{2}}})\]

A)

10 K

B)

102 K

C)

103 K

D)

104 K

View Answer
29) Real gases obey ideal gas laws more closely at

A)

low pressure and low temperature

B)

low pressure and high temperature

C)

high pressure and low temperature

D)

high pressure and high temperature

View Answer
30) Carnot engine cannot give 100% efficiency, because we cannot

A)

eliminate friction

B)

find ideal sources

C)

prevent radiation

D)

reach absolute zero temperature

View Answer
31) Two cylinders fitted with pistons contain equal amounts of an ideal diatomic gas at 300 K. The piston of A is free to move, while that of B is held fixed. The same amount of heat is given to the gas in each cylinder. If the rise in temeperature of gas in A is 300 K, then rise in temperature of gas in B is

A)

30 K

B)

18 K

C)

50 K

D)

42 K

View Answer
32) A thin square plate with each side equal to 10 cm, is heated by a blacksmith The rate of radiated energy by the heated plate is 1134 W. The temperature of hot square plate is (Stefans constant \[\sigma =\text{5}.\text{67}\times \text{l}{{0}^{-8}}\text{ W}-{{m}^{2}}\text{ }{{\text{K}}^{-4}},\]emissivity of plate = 1)

A)

1000 K

B)

1189 K

C)

2000 K

D)

2378 K

View Answer
33) A beaker of hot water cools from \[75{}^\circ C\] to \[70{}^\circ C\] in ti min from \[70{}^\circ C\] to \[65{}^\circ C\] in \[{{t}_{1}}\] min and from \[65{}^\circ C\] to \[60{}^\circ C\] in (3 min. Then

A)

\[{{\text{r}}_{\text{1}}}={{\text{t}}_{\text{2}}}={{\text{t}}_{\text{3}}}\]

B)

\[{{\text{r}}_{\text{1}}}\text{}{{\text{t}}_{\text{2}}}\text{}{{\text{t}}_{\text{3}}}\]

C)

\[{{\text{r}}_{\text{1}}}\text{}{{\text{t}}_{\text{2}}}\text{}{{\text{t}}_{\text{3}}}\]

D)

\[{{\text{r}}_{\text{1}}}\text{}{{\text{t}}_{\text{2}}}\text{}{{\text{t}}_{\text{3}}}\]

View Answer
34) If the ratio of specific heats of a gas at constant pressure to that at constant volume is y, the change in internal energy of a gas, when tlie volume changes from V to 2V at constant pressure p, is

A)

\[pV\]

B)

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

C)

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

D)

\[\frac{y\,pV}{y-1}\]

View Answer
35) When a charged oil drop moves upwards in an electric field of strength E, the electric force acting on the drop is

A)

equal to the gravitational force

B)

less than the gravitational force

C)

greater than the gravitational force

D)

greater than the mass of the oil drop

View Answer
36) What is the resultant capacitance between A and B ?

A)

51\[\mu F\]

B)

102 \[\mu F\]

C)

204\[\mu F\]

D)

408 \[\mu F\]

View Answer
37) If a uniform wire of resistance R is uniformly stretched to n times the original length, then new resistance of the wire becomes

A)

\[nR\]

B)

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

C)

\[\frac{n}{R}\]

D)

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

View Answer
38) A \[2{}^\circ C\] rise in temperature is observed in a conductor by passing a current. When the current is tripled, the rise in temperature will be

A)

\[9{}^\circ C\]

B)

\[18{}^\circ C\]

C)

\[27{}^\circ C\]

D)

\[36{}^\circ C\]

View Answer
39) A conducting rod AC of length \[4l\] is rotated about a point   \[O\]   in   a uniform magnetic field B directed into the paper. \[\text{AO}=l\text{ and OC }=\text{ 3}l,\]then

A)

\[{{V}_{A}}-{{V}_{O}}=\frac{B\omega {{l}^{2}}}{2}\]

B)

\[{{V}_{O}}-{{V}_{C}}=\frac{9}{2}B\omega {{l}^{2}}\]

C)

\[{{V}_{A}}-{{V}_{C}}=4B\omega {{l}^{2}}\]

D)

\[{{V}_{C}}-{{V}_{O}}=\frac{9}{2}B\omega {{l}^{2}}\]

View Answer
40) If two wires are carrying currents in opposite directions, then they will

A)

repel each other

B)

attract each other

C)

become inclined to each other

D)

neither repel nor attract each other

View Answer
41) For protecting a sensitive equipment from external magnetic field, it should be

A)

placed inside an iron can

B)

placed inside an aluminium can

C)

surrounded with fine copper sheet

D)

wrapped with insulation around it when passing current through it

View Answer
42) If reduction factor of a tangent galvanometer is 900 mA, then the current through it to produce a deflection of \[45{}^\circ \] is

A)

600 mA

B)

700 mA

C)

750 mA

D)

900 mA

View Answer
43) The Lenzs law gives

A)

direction of induced current

B)

magnitude of induced emf

C)

magnitdue of induced current

D)

magnitude and direction of induced current

View Answer
44) A circuit consists of a resistor, an inductor and a capacitor connected in series. If the resistance of a resistor is 250. and the value of inductive reactance is equal to capacitive reactance, then the net impedance of the circuit will be

A)

50

B)

250

C)

1250

D)

6250

View Answer
45) An alternating current is given by \[\text{I}=\text{ }{{\text{I}}_{\text{1}}}\text{ cos }\omega \text{t}+{{I}_{2}}\text{ sin }\omega t,\]the root mean square current is given by

A)

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

B)

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

C)

\[\sqrt{\frac{I_{1}^{2}+I_{2}^{2}}{2}}\]

D)

\[\frac{\sqrt{I_{1}^{2}+I_{2}^{2}}}{2}\]

View Answer
46) The waves which cannot travel in vacuum are

A)

X-rays

B)

radiowaves

C)

infrasonic waves

D)

ultraviolet rays

View Answer
47) Which of the following is/are not electromagnetic waves ?

A)

p-rays

B)

X-rays

C)

Cosmic rays

D)

Both (a) and (b)

View Answer
48) The electromagnetic radiations are caused by

A)

a stationary charge

B)

accelerated charge

C)

uniformly moving charge

D)

All of the above

View Answer
49) A ray of light passes through four transparent media with refractive indices \[{{\mu }_{1}},{{\mu }_{2}},\mu {{ }_{3}}\] and \[\mu {{ }_{4}}\] as shown in the figure. The surfaces of ? media are parallel. If the emergent ray CL parallel to the incident ray AB, we must have

A)

\[{{\mu }_{1}}={{\mu }_{2}}\]

B)

\[{{\mu }_{2}}={{\mu }_{3}}\]

C)

\[{{\mu }_{3}}={{\mu }_{4}}\]

D)

\[{{\mu }_{1}}={{\mu }_{4}}\]

View Answer
50) A satisfactory photographic print is obtained a distance of 2m from a 60 cd lamp when the exposure time is 10 s. The time of exposure required for the same quality print at a distance 4 m from a 120 cd lamp is

A)

5s

B)

10s

C)

20s

D)

25s

View Answer
51) The radius of second Bohrs orbit of hydrogen atom is

A)

0.053 nm

B)

0.106 nm

C)

0.2116 nm

D)

0.4256 nm

View Answer
52) Kinetic energy of one mole of an ideal gas at 300 K is

A)

3.48 kJ

B)

3.74 kJ

C)

37.4 kJ

D)

34.8 kJ

View Answer
53) Which of the following is the correct electronic configuration of Cr?

A)

\[1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{2}}3{{p}^{6}},4{{s}^{1}}3{{d}^{5}}\]

B)

\[1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{2}}3{{p}^{6}},4{{s}^{2}}3{{d}^{4}}\]

C)

\[1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{2}}3{{p}^{6}},4{{s}^{2}}3{{d}^{6}}\]

D)

\[1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{2}}3{{p}^{6}},4{{s}^{1}}3{{d}^{8}}\]

View Answer
54) If the value of \[{{C}_{p}}\] for nitrogen gas is\[7\,J{{K}^{-1}}\,mo{{l}^{-1}}\] , then the value of \[\Delta H\] on heating 28 g of nitrogen gas from \[{{0}^{o}}C\] to \[{{100}^{o}}C\] at constant pressure will be

A)

1200 J

B)

1300 J

C)

1400 J

D)

1500 J

View Answer
55) The least count of an instrument is 0.01 cm. Taking all precautions, the most possible error in the measurement can be

A)

0.005 cm

B)

0.01 cm

C)

0.0001 cm

D)

0.1 cm

View Answer
56) The phenomenon of radioactivity was discovered by

A)

Henry Becquerel

B)

Madam Curie

C)

P. Curie

D)

Rutherford

View Answer
57) Hydrogen peroxide is prepared in the laboratory by

A)

passing \[C{{O}_{2}}\] into \[Ba{{O}_{2}}\]

B)

adding \[Mn{{O}_{2}}\] to dil. \[{{H}_{2}}S{{O}_{4}}\]

C)

adding \[N{{a}_{2}}{{O}_{2}}\] to cold water

D)

adding \[Pb{{O}_{2}}\] into \[KMn{{O}_{4}}\]

View Answer
58) Vinegar is

A)

HCHO

B)

HCOOH

C)

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

D)

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

View Answer
59) Which of the following product is formed in the reaction                \[C{{H}_{3}}MgBr\xrightarrow[(ii)\,\,{{H}_{2}}O]{(i)\,\,C{{O}_{2}}}?\]

A)

Acetic acid

B)

Methanoic acid

C)

Methanol

D)

Ethanal

View Answer
60) Ethyl chloride is converted into diethyl ether by

A)

Perkins reaction

B)

Wurtz-Fittig reaction

C)

Wurtz reaction

D)

Williamsons synthesis

View Answer
61) lodoform test is not answered by

A)

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

B)

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

C)

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

D)

\[C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ OH \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{3}}\]

View Answer
62) The equivalent weight of a solid element is found to be 9. If the specific heat of this element is \[105\,J{{g}^{-1}}{{K}^{-1}}\], then its atomic weight is

A)

17

B)

21

C)

25

D)

27

View Answer
63) The maximum energy is possessed by an electron, when it is present

A)

in nucleus

B)

in ground energy state

C)

in first excited state

D)

at infinite distance from the nucleus

View Answer
64) A gas has a vapour density 11.2. The volume occupied by 1 g of gas at NTP is

A)

1L

B)

11.2 L

C)

22.4 L

D)

unpredictable

View Answer
65) Particle nature of electron was experimentally demonstrated by

A)

Maxwell

B)

J.J. Thomson

C)

de-Broglie

D)

Schrodinger

View Answer
66) Which of the following is a magic number?

A)

10

B)

16

C)

55

D)

50

View Answer
67) The Ostwald dilution law is expressed as

A)

\[{{K}_{a}}=\frac{C{{\alpha }^{2}}}{(1-\alpha )}\]

B)

\[{{K}_{a}}=\frac{C\alpha }{(1-\alpha )}\]

C)

\[{{K}_{a}}=\frac{1-\alpha }{C{{\alpha }^{2}}}\]

D)

\[{{K}_{a}}=\frac{C\,(1-\alpha )}{{{\alpha }^{2}}}\]

View Answer
68) The pH value of an acid is 5 and its concentration is 1 M. What is the value of \[{{K}_{a}}\]for the acid?

A)

\[{{10}^{-7}}\]

B)

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

C)

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

D)

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

View Answer
69) To calculate the amount of work done in joules during reversible isothermal expansion of an ideal gas, the volume must be expressed in

A)

\[{{m}^{3}}\] only

B)

\[d{{m}^{3}}\] only

C)

\[c{{m}^{3}}\] only

D)

Any of these

View Answer
70) In the reaction, \[{{H}_{2}}(g)+{{I}_{2}}(g)2HI(g)\] Which of the following is correct?

A)

\[{{K}_{p}}={{K}_{c}}\],

B)

\[{{K}_{p}}>{{K}_{c}}\],

C)

\[{{K}_{p}}<{{K}_{c}}\],

D)

\[{{K}_{p}}\ge {{K}_{c}}\],

View Answer
71) The mass of an object changes from 0.2 g to 0.025 g in 1500 yr. The half-life of the object is

A)

500 yr

B)

600 yr

C)

800 yr

D)

950 yr

View Answer
72) Which of the following is the correct nuclear reaction, when \[_{90}^{233}Th\] undergoes one \[\beta \]- emission?

A)

\[_{90}^{233}Th\xrightarrow{{}}_{90}^{233}Pa{{+}_{-2}}{{e}^{0}}\]

B)

\[_{90}^{233}Th\xrightarrow{{}}_{91}^{233}Pa{{+}_{-1}}{{e}^{0}}\]

C)

\[_{90}^{233}Th\xrightarrow{{}}_{90}^{233}Pa{{+}_{0}}{{e}^{4}}\]

D)

\[_{90}^{233}Th\xrightarrow{{}}_{91}^{233}Pa{{+}_{-1}}{{e}^{4}}\]

View Answer
73) Which of the following is the chief ore of copper?

A)

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

B)

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

C)

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

D)

\[CuC{{O}_{3}}\,.\,\,2{{H}_{2}}O\]

View Answer
74) Which of the following is an epsom salt?

A)

\[2CaS{{O}_{4}}\,.\,\,{{H}_{2}}O\]

B)

\[MgS{{O}_{4}}\,.\,\,7{{H}_{2}}O\]

C)

                \[MgS{{O}_{4}}\,.\,\,{{H}_{2}}O\]

D)

                \[CaS{{O}_{4}}\,.\,\,2{{H}_{2}}O\]

View Answer
75) Bromine can be liberated from KBr solution by the action of

A)

KI

B)

NaCI

C)

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

D)

\[{{I}_{2}}\] solution

View Answer
76) When lead nitrate is heated, it produces

A)

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

B)

NO

C)

\[{{N}_{2}}{{O}_{5}}\]

D)

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

View Answer
77) Which of the following lanthanide is commonly used?

A)

Lanthanum

B)

Nobelium

C)

Thorium

D)

Cerium

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

A)

3,3-dimethyl-l-butene

B)

2,2-dimethyl-3-butene

C)

l,l,l-trimethyl-2-propene

D)

3,3,3-trimethyl-2-propene

View Answer
79) The order of reactivities of methyl halide in the formation of Grignard reagent is

A)

\[C{{H}_{3}}Cl>C{{H}_{3}}Br>C{{H}_{3}}I\]

B)

\[C{{H}_{3}}I>C{{H}_{3}}Br>C{{H}_{3}}Cl\]

C)

\[C{{H}_{3}}Br>C{{H}_{3}}I>C{{H}_{3}}Cl\]

D)

\[C{{H}_{3}}Br>C{{H}_{3}}Cl>C{{H}_{3}}I\]

View Answer
80) Which of the following waste materials can be used for producing bio-gas?

A)

                Thermocoal

B)

                Glass bottle

C)

Tin cans

D)

Paper scrap

View Answer
81) Which of the following is called Marsh gas?

A)

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

B)

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

C)

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

D)

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

View Answer
82) The hardness of water is estimated by

A)

EDTA method

B)

titrimetric method

C)

conductivity method

D)

distillation method

View Answer
83) The addition of 1% alcohol to chloroform acts as

A)

auto-catalyst

B)

bio-catalyst

C)

positive catalyst

D)

negative catalyst

View Answer
84) How much sodium acetate should be added to M solution of \[C{{H}_{3}}COOH\] to give a solution of pH 5.5. (\[p{{K}_{a}}\] of \[C{{H}_{3}}COOH=4.5\]) ?

A)

0.1 M

B)

0.2 M

C)

1.0 M

D)

10.0 M

View Answer
85) In order to convert aniline into chlorobenzene the reagent used is

A)

\[NaN{{O}_{2}}/HCl,\,\,CuCl\]

B)

\[C{{l}_{2}}/CC{{l}_{4}}\]

C)

\[C{{l}_{2}}/AlC{{l}_{3}}\]

D)

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

View Answer
86) A drug that is antipyretic as well as analgesic is

A)

chloroquine

B)

penicillin

C)

paracetamol

D)

chloramphenicol

View Answer
87) The basic component of the smog is

A)

PAN

B)

PBN

C)

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

D)

All of these

View Answer
88) DNA multiplication is called

A)

translation

B)

reverse transcription

C)

transcription

D)

replication

View Answer
89) Hexoses and pentoses are

A)

disaccharides

B)

monosaccharides

C)

polysaccharides

D)

oligosaccharides

View Answer
90) An ester used as medicine is

A)

ethyl acetate

B)

methyl salicylate

C)

ethyl benzoate

D)

methyl benzoate

View Answer
91) What is formed when nitrobenzene is reduced using zinc and alkali?

A)

Phenol

B)

Hydrazobenzene

C)

Aniline

D)

Nitrosobenzene

View Answer
92) Which of the following test is not used for testing of proteins?

A)

Millonstest

B)

Molischs test

C)

Biurettest

D)

Ninhydrin test

View Answer
93) Which of the following is not a synthetic fibre?

A)

Rubber

B)

Nylon-6

C)

Nylon-6, 6

D)

Nylon-6, 10

View Answer
94) A liquid decomposes at its normal boiling point. It can be purified by

A)

sublimation

B)

steam distillation

C)

vacuum distillation

D)

fractional distillation

View Answer
95) Which of the following is obtained when auric chloride reacts with sodium chloride?

A)

Na[AuCl]

B)

\[Na\,[AuC{{l}_{2}}]\]

C)

\[Na\,[AuC{{l}_{3}}]\]

D)

\[Na\,[AuC{{l}_{4}}]\]

View Answer
96) The limiting radius ratio for tetrahedral shape is

A)

0 to 0.155

B)

0.225 to 0.414

C)

0.155 to 0.225

D)

0.414 to 0.732

View Answer
97) When a capillary tube of diameter 0.8 mm is dipped in a liquid having density 800 kg \[{{m}^{-3}}\], then the height of liquid in the capillary tube rises to 4 cm. The surface tension of liquid is \[(g=9.8\,m/{{s}^{2}})\]

A)

\[4.3\times {{10}^{-2}}N{{m}^{-1}}\]

B)

\[5.6\times {{10}^{-2}}N{{m}^{-1}}\]

C)

\[6.3\times {{10}^{-2}}N{{m}^{-1}}\]

D)

\[7.3\times {{10}^{-2}}N{{m}^{-1}}\]

View Answer
98) The \[BC{{l}_{3}}\] is a planar molecule whereas \[NC{{l}_{3}}\]is pyramidal, because

A)

nitrogen atom is smaller than boron atoms

B)

B?Cl bond is more polar than N?Cl bond

C)

N?Cl bond is more covalent than B?Cl bond

D)

\[FC{{l}_{3}}\] has no lone pair but \[NC{{l}_{3}}\] has a lone pair of electrons

View Answer
99) Railway wagon axles are made by heating iron rods embedded in charcoal powder. This process is known as

A)

tempering

B)

annealing

C)

quenching

D)

case hardening

View Answer
100) The reaction \[A{{g}^{2+}}(aq)+Ag(s)2A{{g}^{+}}(aq)\]is an example of

A)

reduction

B)

oxidation

C)

disproportionation

D)

None of the above

View Answer
101) The main function of lysosome is

A)

sexual reproduction

B)

extracellular digestion

C)

intracellular digestion

D)

Both (a) and (b)

View Answer
102) Which of the following maintains continuity between the water and lipid phases inside and outside the cells?

A)

Cell wall

B)

Lecithin

C)

Cell vacuole

D)

Cell membrane of woody plants

View Answer
103) The method of classification, called cladistics, is based on

A)

natural system

B)

mutation theory

C)

artificial system

D)

evolutionary history

View Answer
104) In many bacteria, the cell membrane becomes invaginated and folded to form

A)

pill

B)

cristae

C)

fimbriae

D)

mesosomes

View Answer
105) Lomasomes are found in

A)

algal cell

B)

fungal cell

C)

bacterial cell

D)

cyanobacterial cell

View Answer
106) Zygote of Spirogyra produces four haploid nuclei, in which

A)

one is functional

B)

two are functional

C)

three are functional

D)

all are functional

View Answer
107) Which of the following part of Funaria, sporophyte is involved in the dispersal of spores?

A)

Calyptra

B)

Operculum

C)

Peristome

D)

Annulus

View Answer
108) In Selaginella, the adaxial outgrowth, from the base of leaf, is called

A)

ligule

B)

velum

C)

rhizophore

D)

glossopodium

View Answer
109) In Pinus, the third tier of embryonal cells from below is known as

A)

rosette tier

B)

suspensor tierl

C)

embryonal tier

D)

free - nuclear tierl

View Answer
110) Most of the petrocrops belong to family

A)

Malvaceae

B)

Rutaceae

C)

Leguminosae

D)

Euphorbiaceae

View Answer
111) Amia belongs to family

A)

Labiatae

B)

Fabaceae

C)

Solanaceae

D)

Euphorbiaceae

View Answer
112) Tuberous roots are found in

A)

Beta vulgaris

B)

Daucus carota

C)

Ipomoea batatas

D)

Raphanus sativus

View Answer
113) Velamen is found in

A)

Vanda

B)

Rosa

C)

Viscum

D)

Santalum

View Answer
114) The type of leaf in Daucus carora is

A)

simple

B)

bipinnate

C)

tripinnate

D)

decompounds

View Answer
115) Aerenchyma provides

A)

flexibility to plants

B)

mechanical strength to plants

C)

buoyancy to hydrophytic plants

D)

promoting nature of photosynthesis

View Answer
116) Two cross - sections of stem and root appear simple, when viewed by naked eye. But under microscope, they can be differentiated by

A)

exarch condition of root and stem

B)

endarch condition of stem and root

C)

endarch condition of root and exarch condition of stem

D)

endarch condition of stem and exarch condition of root

View Answer
117) Umbel inflorescence is found in

A)

Musa

B)

Colocosia

C)

Coriandrum

D)

Helianthus

View Answer
118) When gynoecium is present in the topmost position of thalamus, the flower is known as

A)

inferior

B)

epigynous

C)

perigynous

D)

hypogynous

View Answer
119) Orthotropus ovule belongs to

A)

Urtica

B)

Polygonum

C)

Peperomea

D)

All of these

View Answer
120) In a flowering plant, megaspore develops into an embryo sac, which contains

A)

4 cells, one of which is an egg

B)

6 cells, one of which is an egg

C)

8 cells, one of which is an egg

D)

None of the above

View Answer
121) The type of pollination found in Calotropis is

A)

dicliny

B)

herkogamy

C)

heterostyly

D)

dichogamy

View Answer
122) Apogamy is

A)

reproduction of virus

B)

failure of fusion of gametes

C)

development of bacteria

D)

loss of function of reproduction

View Answer
123) If a sporangium is derived from a single cell, it is called

A)

Ieptosporangiate

B)

eusporangiate

C)

heterosporangiate

D)

monosporangiate

View Answer
124) Drupe contains

A)

stony endocarp

B)

stony mesocarp

C)

edible epicarp

D)

edible endocarp

View Answer
125) When stomata open the pH of guard cells?

A)

Increases

B)

Decreases

C)

Remains same

D)

Both (a) and (b)

View Answer
126) Water lost in guttation is

A)

pure water

B)

impure water

C)

in vapour form

D)

either or

View Answer
127) Photochemical reactions in the chloroplasts are directly involved in

A)

fixation of carbon dioxide

B)

synthesis of glucose and starch

C)

formation of phosphoglyceric acid

D)

photolysis of water and phosphorylation of ADP to ATP

View Answer
128) Which of the following elements are essential for the photolysis of water?

A)

Ca and Cl

B)

Mn and Cl

C)

Zn and l

D)

Cu and Fe

View Answer
129) Respiratory Quotient (RQ) is denned as

A)

volume of \[{{O}_{2}}/\]volume of \[C{{O}_{2}}\]

B)

volume of \[C{{O}_{2}}/\]volume of \[{{O}_{2}}\]

C)

volume of \[{{O}_{2}}/\]volume of \[{{N}_{2}}\]

D)

volume of \[{{N}_{2}}/\]volume of \[C{{O}_{2}}\]

View Answer
130) A sleep movement in plants is a nastic response, that occurs daily in response to

A)

dark

B)

light

C)

water

D)

Both (a) and (b)

View Answer
131) Plant hormones are

A)

growth regulators

B)

growth promoters

C)

growth inhibitors

D)

All of the above

View Answer
132) The most common auxin is

A)

GA

B)

ABA

C)

Kinetin

D)

IAA

View Answer
133) Gibberellin promotes cell division and elongation in

A)

leaves

B)

roots

C)

shoots

D)

All of these

View Answer
134) The deteriorative processes in plants, that naturally terminate their functional life, ar collectively called

A)

wilting

B)

abscission

C)

plasmolysis

D)

senescence

View Answer
135) Mendelian recombinations are due to

A)

linkage

B)

mutations

C)

dominant characters

D)

independent assortment

View Answer
136) Chromosome number 2n - 1 is an example of

A)

trisomy

B)

euploidy

C)

polyploidy

D)

monosomy

View Answer
137) Agrobacterium tumefaciens contains a large plasmid, which induces tumour in the plants, it is termed as

A)

Ti plasmid

B)

Ri plasmid

C)

recombinant plasmid

D)

shine delgrano sequence

View Answer
138) The organisms inhabiting a common environment belong to the same

A)

species

B)

genus

C)

population

D)

community

View Answer
139) Minerals, metals and fossil fuels are which type of resources of energy?

A)

Renewable

B)

Non - renewable

C)

Biodegradable

D)

Degradable

View Answer
140) Foul smell in the water bodies of tanks, ponds etc., is due to

A)

aerobiosis

B)

anaerobiosis

C)

psammophytes

D)

biological magnification

View Answer
141) Ethology is the study of

A)

behaviour of animals

B)

past life of organism

C)

disease causing pathogens

D)

None of the above

View Answer
142) The study of molluscan is called

A)

Neurology

B)

Conchology

C)

Malacology

D)

Craniology

View Answer
143) The globular proteins undergo structural changes, in response to extremes of pH or temperature, is called

A)

renaturation

B)

denaturation

C)

combination

D)

Both (a) and (b)

View Answer
144) Sex chromosomes are also known as

A)

autosomes

B)

allosomes

C)

genome

D)

karyotype

View Answer
145) The lytic enzyme present in semen is

A)

ligase

B)

estrogenase

C)

androgenase

D)

hyaluronidase

View Answer
146) The fastest acting enzyme, in the biological kingdom, is

A)

lipase

B)

amylase

C)

peptidase

D)

carbonic anhydrase

View Answer
147) Chymotrypsin is produced by

A)

liver

B)

pancreas

C)

stomach

D)

duodenum

View Answer
148) In which of the following kingdom diatoms are placed?

A)

Plantae

B)

Fungi

C)

Protozoans

D)

Protista

View Answer
149) Nucleus of Monocystis is

A)

bilobed

B)

spherical

C)

multilobed

D)

bean shaped

View Answer
150) Plasmodium is an

A)

endoparasite

B)

ectoparasite

C)

intercellular parasite

D)

Both (a) and (b)

View Answer
151) Choanocyte is an ascon type of canal system, which is lined by

A)

porocyte

B)

incurrent

C)

apopyle

D)

spongocoel

View Answer
152) Which of the following are also known as collar cells?

A)

Choanocytes

B)

Pinocytes

C)

Thesocytes

D)

Cnidoblast

View Answer
153) Rostellum and hooks are absent in the scolex of

A)

Taenia seginata

B)

Taenia solium

C)

Echinococcus granulosus

D)

Fasdola hepatica

View Answer
154) Coelom in Ascaris lumbricoides, is

A)

truecoelom

B)

pseudocoelom

C)

schizocoelom

D)

phycocoelom

View Answer
155) Which of the following animal is sanguivorous?

A)

Nereis

B)

Tapeworm

C)

Earthworm

D)

Hirudinaria

View Answer
156) Sand fly spreads a particular type of disease by its

A)

proboscis

B)

mandible

C)

salivary gland

D)

None of these

View Answer
157) Which of the following belongs to the class Amphineura?

A)

Chiton

B)

Nautilus

C)

Dentalium

D)

Pinctada

View Answer
158) Ambulacral system is mainly useful for

A)

locomotion

B)

circulation

C)

feeding

D)

defence

View Answer
159) Swim bladder is present in

A)

star fishes

B)

bony fishes

C)

carp fishes

D)

All of these

View Answer
160) The Indian salamander is

A)

Siren

B)

Toilotriton

C)

Ambyostoma

D)

Necturus

View Answer
161) The character of birds, without exception, is

A)

omnivorous

B)

flying wings

C)

beak without teeth

D)

lay eggs with calcareous shell

View Answer
162) Blood platelets are found only in the blood of

A)

birds

B)

reptiles

C)

mammals

D)

amphibians

View Answer
163) Ligament connects

A)

bone to bone

B)

bone to muscle

C)

muscle to muscle

D)

Both (a) and (b)

View Answer
164) Which of the following fatty add is on synthesized in the human body?

A)

Glycerol

B)

Cholesterol

C)

Linoleic acid

D)

Both (a) and (b)

View Answer
165) Which of the following blood vessel in the circulatory system of frog has more deoxygenated blood?

A)

Pulmonary artery

B)

Precaval veins

C)

Pulmocutaneous artery

D)

Pulmocutaneous vein

View Answer
166) Tachycardia is

A)

fast heart rate

B)

slow heart rate

C)

stop heart rate

D)

normal heart rate

View Answer
167) Atrial natriuretic hormone is produced by

A)

kidney

B)

heart

C)

duodenum

D)

thyroid gland

View Answer
168) Cells present in the inner lining of kidneys are

A)

podocytes

B)

choanocytes

C)

pinocytes

D)

nephrocytes

View Answer
169) Which of the following does not control the heart beat?

A)

Vagus

B)

Epinephrine

C)

Norepinephrine

D)

Glossopharyngeal nerve

View Answer
170) The egg of frog is

A)

telolecithal

B)

microlecithal

C)

alecithal

D)

centrolecithal

View Answer
171) Which of the following undergoes spemiogenesis?

A)

Spermatids

B)

Spermatogonia

C)

Primary spermatocytes

D)

Secondary spermatocytes

View Answer
172) Antifertilizing is present on

A)

egg

B)

tail

C)

ovum

D)

spermatozoa

View Answer
173) Swan necked flask experiment proved

A)

biogenesis

B)

abiogenesis

C)

gene therapy

D)

Both (a) and (b)

View Answer
174) Cosmozoic theory was proposed by

A)

Helmholtz

B)

Richter

C)

Pasteur

D)

Arrhenius

View Answer
175) The idea, not related to the Darwinian evolutionary theory is

A)

survival of the fittest

B)

struggle for existence

C)

inheritance of acquired characters

D)

origin of species by natural selection

View Answer
176) Which of the following has the least number of chromosomes?

A)

Amoeba

B)

Drosophila

C)

Pheretima

D)

Ascaris megalocephala

View Answer
177) Exotoxins are related with

A)

tetanus

B)

diphtheria

C)

cancer

D)

Both (a) and (b)

View Answer
178) Argentaffin may arise in

A)

pancreas

B)

bile duct

C)

intestinal tract

D)

All of these

View Answer
179) Which of these may cause hypothermia in humans?

A)

Smoking

B)

LSD

C)

Dopamine

D)

Alcohol consumption

View Answer
180) Which of the following is a dual purpose breed?

A)

Sindhi

B)

Deoni

C)

Jersey

D)

Sahiwal

View Answer
181) Pasteur and Koch are related to

A)

discovery of nucleic acids (DNA and RNA)

B)

discovery of ultracentrifuge

C)

germ theory of disease

D)

gene splicing

View Answer
182) Upon amniocentesis of a pregnant woman, it is found that the embryo contains both - Barr body and F - body. The syndrome likely to be associated with the embryo is

A)

Edwards syndrome

B)

Downs syndrome

C)

Klinefelters syndrome

D)

Pataus syndrome

View Answer
183) The retina of nocturnal birds contain

A)

cones only

B)

rods only

C)

Both (a) and (b)

D)

Either or

View Answer
184) Among the following which one is longest phase in prophase of meiosis?

A)

Leptotene

B)

Zygotene

C)

Pachytene

D)

Diplotene

View Answer
185) The cavity in the region of diencephalon in the brain of rabbit is called

A)

lateral ventricle

B)

third ventricle

C)

foramen of Monro

D)

iter

View Answer
186) Graafian follicle contains

A)

oogonial cells

B)

corpus luteum

C)

theca extema and theca intema

D)

corpus albicans

View Answer
187) Excretion means

A)

formation of those substances, which have some role in the body

B)

removal of such substances, which have never been part of the body

C)

removal of useless substances and substances present in excess

D)

All of the above

View Answer
188) Arthropodes are characterized by

A)

jointed appendages

B)

open blood vascular system

C)

triploblastic

D)

All of the above

View Answer
189) A Red Blood Cell (RBC) was kept in a certain solution for few minutes and it got burst. The said solution was

A)

isotonic

B)

concentrated sugar solution

C)

hypertonic

D)

hypotonic

View Answer
190) The alternate host of Taenia saginata is

A)

cow

B)

pig

C)

dog

D)

None of these

View Answer
191) Mammary glands are modified

A)

sweat glands

B)

ceruminous glands

C)

glands of Zeis

D)

inguinal glands

View Answer
192) End of long bones are covered with

A)

muscles

B)

cartilage

C)

adipose tissue

D)

bone marrow

View Answer
193) Which of the following is correct?

A)

Mesoderm?Brain

B)

Ectoderm?Liver

C)

Mesoderm?Skeleton

D)

Endodermis?Epidermis

View Answer
194) The generic name of tusk shell is

A)

Dentalium

B)

Chaetoderma

C)

Chiton

D)

Neoplina

View Answer
195) From Ascoris egg, first larva hatches out in the

A)

intestine of host

B)

stomach of host

C)

outside the body

D)

uterus of female Ascaris

View Answer
196) Which of the following presumably possesses a cranial capacity larger than modem man?

A)

Neanderthal man

B)

Peking man

C)

Australopithecus

D)

Cro - magnon man

View Answer
197) Spontaneous generation theory was given by

A)

F Reddi

B)

L Splanznii

C)

Louis Pasteur

D)

Aristotle

View Answer
198) Electro cardiograph was developed by

A)

Hans Berger

B)

Willem Kolff

C)

Willen Einthoven

D)

Wiehelm Roentgen

View Answer
199) Various enzymes and hormones can be produced on large scale by employing the recombinant

A)

DNA technique

B)

RNA technique

C)

viral technique

D)

bacterial technique

View Answer
200) Which structure is not related to respiration frog?

A)

Diaphragm

B)

Skin

C)

Buccal cavity

D)

Lungs

View Answer

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