Solved papers for AFMC AFMC Solved Paper-2010

AFMC Solved Paper-2010 Total Questions - 200

1) In the relation p = \[\frac{\alpha }{\beta }{{e}^{-\frac{\alpha z}{k\theta }}}p\]is pressure, z is distance, k is Boltzmann constant and \[\theta \]is the temperature. The dimensional formula of P will be

A)

[M0 L2 T0]

B)

[ML2T]

C)

[ML0 T-1]

D)

[M0 L2 T-1]

View Answer
2) A particle of mass m is projected with a velocity v at an angle of 60° with horizontal. When the particle is at its maximum height. The magnitude of its angular momentum about the point of projection is

A)

zero

B)

\[\frac{3m{{v}^{3}}}{16g}\]

C)

\[\frac{\sqrt{3}m{{v}^{3}}}{16g}\]

D)

\[\frac{3m{{v}^{3}}}{8g}\]

View Answer
3) A body is thrown vertically upward in air when air resistance is taken into account, the time of ascent is r, and time of descent is t2, then which of the following is true?

A)

t1 = t2

B)

t1 < t2

C)

t1 > t2

D)

\[{{t}_{1}}\,_{<}^{>}\,{{t}_{2}}\]

View Answer
4) At what angle should the two forces 2P and \[\sqrt{2}P\] act so that the resultant force is? \[P\sqrt{10}\]

A)

\[45{}^\circ \]

B)

\[60{}^\circ \]

C)

\[90{}^\circ \]

D)

\[120{}^\circ \]

View Answer
5) A wheel is rotating at 900 rpm about its axis. When the power is cut off it comes to rest in 1 min. The angular retardation in rad s-2 is

A)

\[\pi /2\]

B)

\[\pi /4\]

C)

\[\pi /6\]

D)

\[\pi /8\]

View Answer
6) A car is moving in a circular horizontal track of radius 10.0 m with a constant speed of 10.0 ms-1. A plumb bob is suspended from the roof of the car by a light rigid rod of length 1.00 m. The angle made by the rod with the track is (g = 10 ms-2)

A)

zero

B)

\[30{}^\circ \]

C)

\[45{}^\circ \]

D)

\[60{}^\circ \]

View Answer
7) Figure shows a uniform rod of length 30 cm having a mass of 3.0 kg. The strings shown in the figure are pulled by constant forces of 20 N and 32 N. Find the force exerted by 20 cm part of the rod on the 10 cm pan. All the surfaces are smooth and the strings and pulleys are light

A)

36 N

B)

12 N

C)

64 N

D)

24 N

View Answer
8) A spring balance is attached to the ceiling of lift. A man hangs his bag on the string and the balance reads 49 N, when the lift is stationary. If the lift moves downwards with an acceleration of 5 ms-2. The reading of the spring balance would be

A)

24 N

B)

74 N

C)

15 N

D)

49 N

View Answer
9) A cyclist rides up a hill at a constant velocity. Determine the power developed by the cyclist if the length of the connecting rod of the pedal is r = 25 cm, the time of revolution of the rod is t = 2s and the mean force exerted by his foot on the pedal is F = 15 kg

A)

115. 6 W

B)

215.6 W

C)

                15.6 W

D)

                11.56 W

View Answer
10) An open water tight railway wagon of mass \[5\times {{10}^{3}}kg\]coasts at an initial velocity of 1.2 ms-1 without friction on a railway track. Rain falls vertically downwards into the wagon. What change occurs in KE of the wagon, when it has collected 103 kg of water?

A)

900 J

B)

300 J

C)

600 J

D)

1200 J

View Answer
11) The power factor of an R-L circuit is \[\frac{1}{\sqrt{2}}\]if the frequency of AC is doubled, what will be the power factor?

A)

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

B)

\[\frac{1}{\sqrt{5}}\]

C)

\[\frac{1}{\sqrt{7}}\]

D)

\[\frac{1}{\sqrt{11}}\]

View Answer
12) A plane electromagnetic wave propagating in the X-direction has wavelength of 6.0 mm. The electric field is in the V-direction and its maximum magnitude is 33 Vm-1. The equation for the electric field as function of x and f is

A)

\[11\,\sin \,\pi \left( t-x/c \right)\]

B)

\[33\,\sin \,\pi \times {{10}^{11}}\left( t-x/c \right)\]

C)

\[33\,\sin \,\pi \left( t-x/c \right)\]

D)

\[11\,\sin \,\pi \times {{10}^{11}}\left( t-x/c \right)\]

View Answer
13) The optical path of a monochromatic light is same if it goes through 4.0 cm of glass or 4.5 cm of water. If the refractive index of glass is 1.53, the refractive index of the water is

A)

1.30

B)

1.36

C)

1.42

D)

1.46

View Answer
14) A double convex lens made of glass (refractive index n =1.5) has both radii of curvature of magnitude 20 cm. Incident light rays parallel to the axis of the lens will converge at a distance L such that

A)

L = 20 cm

B)

L = 10 cm

C)

L = 40 cm

D)

L = \[\frac{20}{3}\]cm

View Answer
15) A beam of light composed of red and green rays is incident obliquely at a point on the face of a rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from

A)

two points propagating in two different non-parallel directions

B)

two points propagating in two different parallel directions

C)

one point propagating in two different directions

D)

one point propagating in the same direction

View Answer
16) The Young's double slit experiment is performed with blue and with green light of wavelengths 4360\[{{A}^{o}}\]and 5460 \[{{A}^{o}}\]respectively. If x is the distance of 4th maxima from the central one, then

A)

\[{{X}_{(blue)}}={{x}_{(green)}}\]

B)

\[{{X}_{(blue)}}>{{x}_{(green)}}\]

C)

\[{{X}_{(blue)}}<{{x}_{(green)}}\]

D)

\[{{X}_{(blue)}}{{^{/x}}_{(green)}}=5460/4360\]

View Answer
17) A proton and an \[\alpha \]-particle are accelerated through same voltage. The ratio of their de - Broglie wavelength will be

A)

1 : 2

B)

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

C)

2 : 1

D)

\[\sqrt{2}\]: 1

View Answer
18) The threshold frequency for a metallic surface corresponds to an energy of 6.2 eV and the stopping potential for a radiation incident on this surface is 5 V. The incident radiation lies in

A)

ultra violet region

B)

infrared region

C)

visible region

D)

X - ray region

View Answer
19) An electron jumps from the 4th orbit to 2nd orbit of hydrogen atom. Given the Rydberg 's constant R = 105 cm-1 the frequency in hertz of the emitted radiation will be

A)

\[\frac{3}{16}\times {{10}^{5}}\]

B)

\[\frac{3}{16}\times {{10}^{15}}\]

C)

\[\frac{9}{16}\times {{10}^{15}}\]

D)

\[\frac{3}{4}\times {{10}^{15}}\]

View Answer
20) In figure, the energy levels of the hydrogen atom have been shown along with some transitions marked A,B,C. The transitions A, B and C respectively represents

A)

the first member of the Lyman series, third member of Balmer series and second member of Paschen series

B)

the ionisation potential of H, second member of Balmer series and third member of Paschen series

C)

the series limit of Lyman series, second member of Balmer series and second member of Paschen series

D)

the series limit of Lyman series, third member of Balmer series and second member of Paschen series

View Answer
21) The typical ionisation energy of a donor in silicon is

A)

10.0 eV

B)

1.0 eV

C)

0.1 eV

D)

0.001 eV

View Answer
22) The temperature (T) dependence of resistivity (\[\rho \]) of a semiconductor is represented by

A)

B)

C)

D)

View Answer
23) The half- life of radioactive radon is 3.8 days. The time at the end of which (1/20)th of the radon sample will remain undecayed is (Given\[{{\log }_{10}}e=-0.4343\]).

A)

13.8 days

B)

16.5 days

C)

33 days

D)

76 days

View Answer
24) In the Boolean algebra, which of the following is wrong?

A)

1 + 0 = 1

B)

0 + 1 = 1

C)

1 + 1 = 1

D)

None of these

View Answer
25) The ratio of the radii of gyration of a circular disc and a circular ring of the same radii about a tangential axis perpendicular to plane of disc or ring is

A)

1 : 2

B)

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

C)

2 : 3

D)

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

View Answer
26) From a circular disc of radius R and mass 9M, a small disc of radius R / 3 is removed from the disc, the moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through 0 is

A)

4 MR2

B)

\[\frac{40}{9}\]MR2

C)

\[10M{{R}^{2}}\]

D)

\[\frac{37}{9}M{{R}^{2}}\]

View Answer
27) A clock S is based on osculation of a spring and a clock P is based on pendulum motion. Both clocks run at the same rate on earth. On a planet having the same density as earth but twice the radius

A)

S will run faster than P

B)

P will run faster than P

C)

both will run at the same rate as on the earth

D)

both will run at the same rate which will be different from that on the earth

View Answer
28) A body is executing SHM when its displacement from the mean position are 4 cm and 5 cm it has velocity 10 cms-1 and 8 cms-1 respectively. Its periodic time t

A)

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

B)

\[\pi \sec \]

C)

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

D)

\[2\pi \sec \]

View Answer
29) A point source emits sound equally in all directions in a non-absorbing medium. Two points P and Q are at distance of 2 m and 3 m respectively from the source. The ratio of the intensities of the waves at P and Q is

A)

9 : 4

B)

2 : 3

C)

3 : 2

D)

4 : 9

View Answer
30) The Young's modulus of brass and steel are respectively \[1.0\times {{10}^{11}}N{{m}^{-2}}\] and \[2.0\times {{10}^{11}}N{{m}^{-2}}.\].A brass wire and a steel wire of the same length are extended by 1 mm each under the same force. If radii of brass and steel wires are RB and RS respectively, then

A)

Rs = \[\sqrt{2}\]RB

B)

RS = \[\frac{{{R}_{B}}}{2}\]

C)

Rs = 4RB

D)

Rs = \[\frac{{{R}_{B}}}{2}\]

View Answer
31) An ice- berg of density 900 kgm-3 is floating in water of density 1000 kgm-3. The percentage of volume of ice-berg outside the water is

A)

20%

B)

35%

C)

10%

D)

11%

View Answer
32) Ten moles of an ideal gas at constant temperature 600 K is compressed from 100 L to 10 L. The work done in the process is

A)

\[4.11\times 104\text{ }J\]

B)

\[-4.11\times 104\text{ }J\]

C)

\[11.4\times 104\text{ }J\]

D)

\[-11.4\times 104\text{ }J\]

View Answer
33) Which of the following statements is correct for any thermodynamic system?

A)

The internal energy changes in all processes

B)

Internal energy and entropy are state functions

C)

The change in entropy can never be zero

D)

The work done in an adiabatic process is always zero

View Answer
34) Work done in placing a charge of \[8\times {{10}^{-18}}C\]on a condenser of capacity 100\[\mu \]F is

A)

\[16\times {{10}^{-32}}J\]

B)

\[31\times {{10}^{-26}}J\]

C)

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

D)

\[32\times {{10}^{-32}}J\]

View Answer
35) If the electric flux entering and leaving an enclosed surface respectively is \[{{\theta }_{1}}\] and \[{{\theta }_{2}}\], the electric charge inside the surface will be

A)

\[\frac{{{\theta }_{2}}-{{\theta }_{1}}}{{{\varepsilon }_{0}}}\]

B)

\[\frac{{{\theta }_{1}}+{{\theta }_{2}}}{{{\varepsilon }_{0}}}\]

C)

\[\frac{{{\theta }_{1}}-{{\theta }_{2}}}{{{\varepsilon }_{0}}}\]

D)

\[{{\varepsilon }_{0}}\left( {{\theta }_{1}}+{{\theta }_{2}} \right)\]

View Answer
36) Two black metallic spheres of radius 4 m, at 2000 K and 1 m, at 4000 K will have ratio of energy radiation as

A)

1 : 1

B)

4 : 1

C)

1 : 4

D)

2 : 1

View Answer
37) A number of condensers, each of the capacitance 1 \[\mu \]F and each one of which gets punctured if a potential difference just exceeding 500 V is applied, are provided. An arrangement suitable for giving capacitance of 2 \[\mu \]F across which 3000 V may be applied requires at least

A)

6 component capacitors

B)

12 component capacitors

C)

72 component capacitors

D)

2 component capacitors

View Answer
38) Two wires of the same material but of different diameters carry the same current J. If the ratio of their diameters is 2 : 1, then the corresponding ratio of their mean drift velocities will be

A)

4 : 1

B)

1 : 1

C)

1 : 2

D)

1 : 4

View Answer
39) A galvanometer of resistance 15\[\Omega \] gives full scale deflection for a current of 2 mA. Calculate the shunt resistance needed to convert it into an ammeter of range 5A

A)

0.178\[\Omega \]

B)

0.002\[\Omega \]

C)

0.0060\[\Omega \]

D)

5\[\Omega \]

View Answer
40) The current 1 drawn from the 5 V source will be

A)

0.33 A

B)

0.5 A

C)

0.67 A

D)

0.17 A

View Answer
41) Torques \[{{\tau }_{1}}\,and\,{{\tau }_{2}}\] are required for magnetic needle to remain perpendicular to the magnetic fields B1 and B2 at two different places. The ratio B1/B2 is

A)

\[\frac{{{\tau }_{2}}}{{{\tau }_{1}}}\]

B)

\[\frac{{{\tau }_{1}}}{{{\tau }_{2}}}\]

C)

\[\frac{{{\tau }_{1}}+{{\tau }_{2}}}{{{\tau }_{1}}-{{\tau }_{2}}}\]

D)

\[\frac{{{\tau }_{1}}-{{\tau }_{2}}}{{{\tau }_{1}}+{{\tau }_{2}}}\]

View Answer
42) The magnetic needle of a tangent galvanometer is deflected at an angle 30° due to a magnet. The horizontal component of earth's magnetic field is 0.34 10-4 T along the plane of the coil. The magnetic intensity is

A)

\[1.96\times {{10}^{-4}}T\]

B)

\[1.96\times {{10}^{4}}T\]

C)

\[1.96\times {{10}^{-5}}T\]

D)

\[~1.96\times {{10}^{5}}T\]

View Answer
43) Magnetic field at the centre of a circular loop of area A is B. The magnetic moment of the loop will be

A)

\[\frac{B{{A}^{2}}}{{{\mu }_{0}}\pi }\]

B)

\[\frac{B{{A}^{3/2}}}{{{\mu }_{0}}\pi }\]

C)

\[\frac{B{{A}^{3/2}}}{{{\mu }_{0}}{{\pi }^{1/2}}}\]

D)

\[\frac{2B{{A}^{3/2}}}{{{\mu }_{0}}{{\pi }^{1/2}}}\]

View Answer
44) A deutron of kinetic energy 50 keV is describing a circular orbit of radius 0.5 m, in a plane perpendicular to magnetic field B. The kinetic energy of a proton that describes circular orbit of radius 0.5 m in the same plane with the same magnetic field is

A)

200 keV

B)

50 keV

C)

100 keV

D)

25 keV

View Answer
45) Magnetic flux in weber in a closed circuit of resistance 10\[\Omega \] varies with time t (sec) as \[\phi =6{{t}^{2}}-5t+1.\].The magnitude of induced current at t = 0.25 s is

A)

0.2 A

B)

0.6 A

C)

1.2 A

D)

0.8 A

View Answer
46) A solenoid carrying a current supplied by a DC source with a constant emf contains iron rod inside it. When the rod is pulled out of the solenoid, then the current in the solenoid will

A)

increase

B)

decrease

C)

remain constant

D)

becomes zero

View Answer
47) A conducting rod of length l is falling with a velocity v perpendicular to a uniform horizontal magnetic field B. The potential difference between its two ends will be

A)

\[2\,Blv\]

B)

\[Blv\]

C)

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

D)

\[{{B}^{2}}{{l}^{2}}{{v}^{2}}\]

View Answer
48) One- fourth length of a spring of force constant k is cui away. The force constant of the remaining spring will be

A)

\[\frac{3}{4}k\]

B)

\[\frac{4}{3}k\]

C)

k

D)

4 k

View Answer
49) There are two electric bulbs of 40 W and 100 W. Which one will be brighter when first connected in series and then in parallel?

A)

40 W in series and 100 W in parallel

B)

100 W in series and 40 W in parallel

C)

40 W both in series and parallel will be uniform

D)

100 W both in series and parallel will be uniform

View Answer
50) An X-ray tube is operated at 50 kV. The minimum wavelength produced is

A)

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

B)

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

C)

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

D)

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

View Answer
51) Least volatile hydrogen halide is

A)

HF

B)

\[\text{HCl}\]

C)

HI

D)

\[\text{HBr}\]

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

A)

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

B)

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

C)

\[\text{O}\]

D)

Na

View Answer
53) Highest oxidation state of Mn is present in

A)

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

B)

\[{{\text{K}}_{\text{2}}}\text{Mn}{{\text{O}}_{\text{4}}}\]

C)

\[\text{M}{{\text{n}}_{\text{2}}}{{\text{O}}_{\text{3}}}\]

D)

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

View Answer
54) Maximum number of H-bonds in one molecule of water is

A)

1

B)

2

C)

3

D)

4

View Answer
55) Among the given compounds, one which can be distinguished by \[\text{AgN}{{\text{O}}_{\text{3}}}\]is

A)

ethane

B)

ethylene

C)

acetylene

D)

diethyl ether

View Answer
56) Oxalic acid on heating with cone. \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]gives

A)

CO only

B)

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

C)

\[\text{C}{{\text{O}}_{\text{2}}}\text{+ }{{\text{H}}_{\text{2}}}\text{O}\]

D)

\[\text{CO + C}{{\text{O}}_{\text{2}}}\text{+ }{{\text{H}}_{\text{2}}}\text{O}\]

View Answer
57) Violet coloured complex obtained in the detection of sulphur is

A)

\[\text{N}{{\text{a}}_{2}}[Fe(NO){{(CN)}_{5}}]\]

B)

\[N{{a}_{3}}[Fe(ONS){{(CN)}_{5}}]\]

C)

\[N{{a}_{4}}[Fe{{(CN)}_{5}}NOS]\]

D)

Both and

View Answer
58) Deuterium nucleus contains

A)

\[1p+1n\]

B)

\[2p+0n\]

C)

\[1p+1{{e}^{-}}\]

D)

\[2p+2n\]

View Answer
59) In an organic compound, phosphorus is estimated as

A)

\[M{{g}_{2}}{{P}_{2}}{{O}_{7}}\]

B)

\[M{{g}_{3}}{{(P{{O}_{4}})}_{2}}\]

C)

\[{{H}_{3}}P{{O}_{4}}\]

D)

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

View Answer
60) Number of atoms present in 4.25 g of \[\text{N}{{\text{H}}_{\text{3}}}\]is

A)

\[6.023\times 1023\]

B)

\[4\times 6.023\times 1023\]

C)

\[1.7\times 1024\]

D)

\[4.25\times 6.023\times 1023\]

View Answer
61) Chemical formula of phosgene is

A)

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

B)

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

C)

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

D)

\[COCl\]

View Answer
62) IUPAC nomenclature of \[{{H}_{3}}C-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-CH=\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,-C{{H}_{3}}\]is

A)

2, 4, 4-trimethylpent-2-ene

B)

2, 4, 4-trimethylpent-3-ene

C)

2, 2, 4-trimethylpent-3-ene

D)

2, 2, 4-trimethylpent-2-ene

View Answer
63) If 1 mL of water contains 20 drops then number of molecules in a drop of water is

A)

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

B)

\[1.376\times {{10}^{26}}\]molecules

C)

\[1.344\times {{10}^{18}}\]molecules

D)

\[4.346\times {{10}^{20}}\]molecules

View Answer
64) Chemical formula of Prussian blue is

A)

\[N{{a}_{4}}[Fe{{(CN)}_{6}}]\]

B)

\[{{K}_{4}}[Fe{{(CN)}_{6}}]\]

C)

\[F{{e}_{4}}{{[Fe{{(CN)}_{6}}]}_{3}}\]

D)

None of these

View Answer
65) \[Pb+Conc.\text{ }\,HN{{O}_{3}}\]gives

A)

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

B)

\[PbN{{O}_{3}}+NO\]

C)

\[Pb{{(N{{O}_{3}})}_{4}}+N{{O}_{3}}\]

D)

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

View Answer
66) \[{{N}_{2}}\]gas will not be evolved upon reaction of \[\text{HN}{{\text{O}}_{\text{2}}}\]with which of the following amines?

A)

\[{{1}^{o}}\]

B)

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

C)

\[{{3}^{o}}\]

D)

Both and

View Answer
67) Which of the following carbonates is the most stable?

A)

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

B)

x

C)

D)

View Answer
68) 100 mL of HCl + 35 mL of NaOH, colour of methyl orange in the solution will be

A)

red

B)

yellow

C)

can't be predicted

D)

methyl orange is not a suitable indicator

View Answer
69) Number of acyclic isomers of the compound having the molecular formula is

A)

4

B)

6

C)

5

D)

7

View Answer
70) Given, The heat of formation of in terms of and is

A)

B)

C)

D)

None of the above

View Answer
71) At the conductance of and at infinite dilution are 315 and 35 mho respectively. The equivalent conductivity of at infinite dilution is ...... mho

A)

350

B)

280

C)

30

D)

315

View Answer
72) How many moles of iodine are liberated when 1 mole of potassium dichromate reacts with potassium iodide?

A)

1

B)

2

C)

3

D)

4

View Answer
73) Pure benzene freezes at A solution of 0.223 g of phenylacetic acid in 4.4 g of benzene freezes at From this observation, one can conclude that

A)

phenylacetic acid exists as such in benzene

B)

phenylacetic acid undergoes partial ionisation in benzene

C)

phenylacetic acid undergoes complete ionisation in benzene

D)

phenylacetic acid dimerises in benzene

View Answer
74) In the following reaction, the product 'R' is

A)

benzene

B)

ethylbenzene

C)

toluene

D)

n-propylbenzene

View Answer
75) Bromine water reacts with to form

A)

HBr and S

B)

and HBr

C)

S and

D)

and HBr

View Answer
76) Which of the following transition metal ions is not coloured?

A)

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

B)

\[{{V}^{3+}}\]

C)

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

D)

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

View Answer
77) The reaction, \[{{N}_{2}}{{O}_{5}}\]in \[CC{{l}_{4}}(solution)\xrightarrow[{}]{{}}2N{{O}_{2}}(solution)+\frac{1}{2}{{O}_{2}}(g)\]is of first order in \[{{N}_{2}}{{O}_{5}}\]with rate constant \[6.2\times {{10}^{-4}}{{s}^{-1}}.\] What is the value of rate of reaction when \[[{{N}_{2}}{{O}_{5}}]=1.25\,mol\,{{L}^{-1}}\]?

A)

\[5.15\times {{10}^{-5}}\,mol\,{{L}^{-1}}{{s}^{-1}}\]

B)

\[6.35\times {{10}^{-3}}\,mol\,{{L}^{-1}}{{s}^{-1}}\]

C)

\[7.75\times {{10}^{-4}}\,mol\,{{L}^{-1}}{{s}^{-1}}\]

D)

\[3.85\times {{10}^{-4}}\,mol\,{{L}^{-1}}{{s}^{-1}}\]

View Answer
78) A developer used in photography is

A)

a weak acid

B)

a weak base

C)

a mild reducing agent

D)

an oxidizing agent

View Answer
79) If 1 mole of an ideal gas expands isothermally at \[37{{\,}^{o}}C\]from 15 L to 25 L, the maximum work obtained is

A)

12.87 J

B)

6.43 J

C)

8.57 J

D)

2.92 J

View Answer
80) The shape of \[\text{I}{{\text{F}}_{\text{7}}}\]molecule is

A)

octahedral

B)

trigonal bipyramidal

C)

tetrahedral

D)

pentagonal bipyramidal

View Answer
81) Hydrolysis of sucrose is called

A)

inversion

B)

esterification

C)

hydration

D)

saponification

View Answer
82) What will be the partial pressure of He and \[{{O}_{2}}\] respectively, if 200 mL of He at 0.66 atm and 400 mL of \[{{O}_{2}}\] at 0.52 atm pressure are mixed in 400 mL vessel at \[20{{\,}^{o}}C\]?

A)

0.33 and 0.56

B)

0.33 and 0.52

C)

0.38 and 0.52

D)

0.25 and 0.45

View Answer
83) In which process, fused sodium hydroxide is electrolysed for extraction of sodium?

A)

Castnefs process

B)

Cyanide process

C)

Down's process

D)

Both and

View Answer
84) At room temperature, the eclipsed and staggered forms of ethane cannot be isolated because

A)

they interconvert rapidly

B)

both the conformers are equally stable

C)

the energy difference between the conformers is large

D)

there is a large energy barrier of rotation about the \[\sigma \] bond

View Answer
85) In an experiment, 4 g of \[{{M}_{2}}{{O}_{x}}\]oxide was reduced to 2.8 g of the metal. If the atomic mass of the metal is \[56\,g\,mo{{l}^{-1}},\] the number of O atoms in the oxide is

A)

1

B)

2

C)

3

D)

4

View Answer
86) Hydrolysis of trichloromethane with aqueous KOH gives

A)

methanol

B)

acetic acid

C)

ethanol

D)

formic acid

View Answer
87) Primary, secondary and tertiary amines can be distinguished by

A)

SchifPs test

B)

Fehling's test

C)

Tollen's test

D)

Hinsberg test

View Answer
88) In the complex ion \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{3+}},\] the \[N{{H}_{3}}\]molecules are linked to the central metal ion by

A)

ionic bonds

B)

covalent bonds

C)

coordinate bonds

D)

hydrogen bonds

View Answer
89) The heat liberated when 1.89 g of benzoic acid is burnt in a bomb calorimeter at \[25{{\,}^{o}}C\]increases the temperature of 18.94 kg of water by\[~{{0.632}^{o}}C.\] If the specific heat of water at \[{{25}^{o}}C\] is 0.998 cal/g-deg, the value of the heat of combustion of benzoic acid is

A)

881.1kcal

B)

771.4 kcal

C)

981.1 kcal

D)

871.2 kcal

View Answer
90) When ethanal is treated with Fehling's solution, it gives a precipitate of

A)

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

B)

Cu

C)

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

D)

\[CuO\]

View Answer
91) The electronegativity of the following elements increases in the order

A)

\[C,N,Si,P\]

B)

\[N,Si,C,P\]

C)

\[Si,P,C,N\]

D)

\[P,Si,N,C\]

View Answer
92) Permanent hardness of water can be removed by adding

A)

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

B)

K

C)

\[Ca(OCl)Cl\]

D)

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

View Answer
93) The compound containing coordinate bond is

A)

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

B)

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

C)

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

D)

All of these

View Answer
94) Which of the following molecules has trigonal planar geometry?

A)

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

B)

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

C)

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

D)

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

View Answer
95) Which of the following compounds, on reaction with NaOH and \[N{{a}_{2}}{{O}_{2}},\]gives yellow colour?

A)

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

B)

\[Al{{(OH)}_{3}}\]

C)

\[Cr{{(OH)}_{3}}\]

D)

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

View Answer
96) The major organic product formed from the following reaction

A)

B)

C)

D)

View Answer
97) If 1,3-dibromopropane reacts with zinc and \[\text{N}\text{aI,}\]the product obtained is

A)

propene

B)

propane

C)

cyclopropane

D)

hexane

View Answer
98) In the equation;\[4M+8C{{N}^{-}}+2{{H}_{2}}O+{{O}_{2}}\xrightarrow[{}]{{}}\] \[4{{[M{{(CN)}_{2}}]}^{-}}+4O{{H}^{-}}\] Identify the metal M.

A)

copper

B)

iron

C)

gold

D)

zinc

View Answer
99) Ammonia, on reaction with excess of chlorine, gives

A)

\[NC{{l}_{3}}\]and \[HCl\]

B)

\[{{N}_{4}}\]and \[N{{H}_{4}}Cl\]

C)

\[NC{{l}_{3}}\]and \[N{{H}_{4}}Cl\]

D)

\[~{{N}_{2}}\] and \[HCl\]

View Answer
100) If the supply of oxygen is limited, \[{{H}_{2}}S\]reacts with \[{{O}_{2}}\] to form

A)

\[{{H}_{2}}O+S{{O}_{3}}\]

B)

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

C)

\[{{H}_{2}}S{{O}_{4}}+S\]

D)

\[~{{H}_{2}}O+S{{O}_{2}}\]

View Answer
101) Edible part of mango is

A)

epicarp

B)

endocarp

C)

mesocarp

D)

receptacle

View Answer
102) Fifth cranial nerve of frog is

A)

facial

B)

olfactory

C)

trigeminal

D)

vagus

View Answer
103) What do you mean by closed vascular bundle?

A)

Cambium present

B)

Cambium absent

C)

Periderm absent

D)

None of these

View Answer
104) Pectoral girdle constitute

A)

scapula and clavicle

B)

radius and ulna

C)

ilium and ischium

D)

maxilla and mandible

View Answer
105) Which of the following hormones is correctly matched with its deficiency disease?

A)

Relaxin - Cretinism

B)

Parathormone - Tetan

C)

Insulin - Diabetes insipidus

D)

Prolactin - Astigmatism

View Answer
106) Which of the ecological pyramid is always upright?

A)

Pyramid of number

B)

Pyramid of biomass

C)

Pyramid of energy

D)

None of the above

View Answer
107) Brunner?s gland is present in

A)

liver

B)

duodenum

C)

oesophagus

D)

stomach

View Answer
108) Example of corm is

A)

ginger

B)

Colocasia

C)

onion

D)

potato

View Answer
109) Binomial nomenclature was given by

A)

R.H. Whittaker

B)

Linnaeus

C)

Aristotle

D)

Theophrastus

View Answer
110) Sand fly act as vector for which disease?

A)

African sleeping sickness

B)

Kala-azar

C)

Oriental sore

D)

Filaria

View Answer
111) Barr body is present in

A)

sperm

B)

ovum

C)

somatic cell of female

D)

somatic cell of male

View Answer
112) Malpighian tubules are analogous to

A)

trachea of cockroach

B)

gills

C)

flame cells

D)

None of the above

View Answer
113) Cloacal aperture of frog is used to pass out

A)

sperm

B)

faeces

C)

urine

D)

All of these

View Answer
114) Clitellum segment of earthworm constitutes segments

A)

7, 8, 9

B)

10 to 12

C)

14 to 16

D)

18 to 20

View Answer
115) Botanical name of banana is

A)

Musa paradisiaca

B)

Musa arietinum

C)

Mimosa pudica

D)

Iberisamara

View Answer
116) Japanese encephalitis is transmitted by

A)

housefly

B)

tsetse fly

C)

sand fly

D)

mosquito

View Answer
117) Monocot stem lacks

A)

tracheids

B)

sieve tube

C)

cambium

D)

None of these

View Answer
118) What is present in the middle piece of sperm?

A)

Acrosome

B)

Mitochondria

C)

Nucleus

D)

Proximal centriole

View Answer
119) Primary acceptor in -plants is

A)

RuBP

B)

oxaloacetate

C)

phosphoglyceraldehyde

D)

PEP

View Answer
120) Nitrogen is absorbed by plants in form of

A)

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

B)

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

C)

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

D)

Both (a) and (c)

View Answer
121) Pulmonary vein carries

A)

deoxygenated blood

B)

oxygenated blood

C)

mixed blood

D)

None of the above

View Answer
122) Hydathode helps in

A)

transpiration

B)

guttation

C)

photosynthesis

D)

respiration

View Answer
123) Organ of Corti helps in

A)

maintaining equilibrium

B)

hearing

C)

formation of wax

D)

All of the above

View Answer
124) The volume of air inspired or expired during normal respiration is called

A)

tidal volume

B)

inspiratory reserve volume

C)

expiratory reserve volume

D)

residual volume

View Answer
125) Function of ADH is

A)

reabsorption of water

B)

reabsorption of sodium

C)

diluting the urine

D)

increasing sugar level in urine

View Answer
126) Function of ABA is

A)

apical dominance

B)

growth inhibition

C)

cell division

D)

seed germination

View Answer
127) Blood clotting corpuscle is

A)

thrombocyte

B)

monocyte

C)

lymphocyte

D)

erythrocyte

View Answer
128) Which of the following is produced by genetically engineered bacteria?

A)

Thyroxine

B)

Insulin

C)

Glucagon

D)

ADH

View Answer
129) Biogas production is carried out by

A)

the rmoacidophils

B)

methanogens

C)

halophiles

D)

ruminants

View Answer
130) In cold climate, the animals have short tail, shorter limbs and ear, this is called

A)

Allen's law

B)

Bergman's law

C)

Cope's rule

D)

Jordan's law

View Answer
131) Triticale is produced by the crossing of

A)

wheat and rye

B)

wheat and maize

C)

wheat and barley

D)

rye and maize

View Answer
132) The structure which contain vascular bundle and is modification of stem is

A)

bristles

B)

thorn

C)

prickle

D)

spine

View Answer
133) Cu-T prevents pregnancy by preventing

A)

fertilization

B)

ovulation

C)

implantation of fertilised egg

D)

None of the above

View Answer
134) DNA replication occurs during which part of cell cycle?

A)

\[{{G}_{1}}-\text{phase}\]

B)

\[S-\text{phase}\]

C)

\[{{G}_{2}}-\text{phase}\]

D)

Dividing phase

View Answer
135) Digestive enzyme hydrolases are present in

A)

vacuole

B)

lysosomes

C)

Golgi bodies

D)

mitochondria

View Answer
136) Tendons and ligaments are kind of

A)

muscular tissue

B)

connective tissue

C)

epidermal tissue

D)

nervous tissue

View Answer
137) How many haeme molecules are present in one molecule of haemoglobin?

A)

One

B)

Two

C)

Three

D)

Four

View Answer
138) Nitrogenous bases present in DNA

A)

adenine, guanine, cytosine, thymine

B)

adenine, guanine, cytosine, uracil

C)

adenine, thymine, uracil

D)

guanine, uracil

View Answer
139) Which of the following is a false fruit?

A)

Mango

B)

Apple

C)

Banana

D)

Jack fruit

View Answer
140) FAD acts as an electron acceptor in between

A)

fumaric and malic acid

B)

succinic and fumaric acid

C)

malic and oxaloacetic acid

D)

citric and isocitric acid

View Answer
141) Pigment iodopsin is contained in

A)

rod cells

B)

cone cells

C)

amacrine cells

D)

horizontal cells

View Answer
142) Which of the given is a long day plant?

A)

Glycine max

B)

Spinach

C)

Chrysanthemum

D)

Tobacco

View Answer
143) Sexual reproduction is absent in

A)

Ascomycetes

B)

Deuteromycetes

C)

Basidiomycetes

D)

Phycomycetes

View Answer
144) Connecting link between Annelida and Mollusca is

A)

Peripatus

B)

Neupilina

C)

Proterospongia

D)

Archeopteryx

View Answer
145) Plant growth is measured by

A)

auxanometer

B)

porometer

C)

potometer

D)

respirometer

View Answer
146) Life span of Ascaris is

A)

3 to 6 months

B)

6 to 9 months

C)

9 to 12 months

D)

12 to 18 months

View Answer
147) \[C{{O}_{2}}\]is transported in blood mostly by means of

A)

plasma

B)

bicarbonate ion

C)

carbaminohaemoglobin

D)

None of the above

View Answer
148) Similarity between Anopheles and Culex is

A)

eggs are laid in floating raft

B)

respiratory siphon is present

C)

eggs have lateral air floats

D)

males of both suck juices of flowers and fruits

View Answer
149) Which one of the following describes correctly the homologous structures?

A)

Organs with anatomical similarities, but performing different functions

B)

Organs with anatomical dissimilarities, but performing same function

C)

Organs that have no function now, but had important function in ancestors

D)

Organs appearing only in embryonic stage and disappearing later in the adult

View Answer
150) Botanical name of peat moss is

A)

Sphagnum

B)

Funaria

C)

Anthoceros

D)

Polytrichum

View Answer
151) Which of the following is not a condition for becoming a citizen of India?

A)

Birth

B)

Acquiring property

C)

Descent

D)

Naturalisation

View Answer
152) Who among the following is known as the ?Father of the Indian Constitution??

A)

Dr. B.R. Ambedkar

B)

Mahatma Gandhi

C)

Jawaharlal Nehru

D)

Vallabhbhai Patel

View Answer
153) The Indian National Army (I.N.A.) came into existence in

A)

Burma

B)

Japan

C)

Malaysia

D)

Singapore

View Answer
154) The Indian Constitution closely follows the constitutional system of

A)

USA

B)

UK

C)

Switzerland

D)

Russia

View Answer
155)  ?Leading the way5 is an ad jingle of

A)

Motorola

B)

Hero Honda

C)

Toyota

D)

Indica V2

View Answer
156) Swaraj as a national demand was first made by

A)

Chittaranjan Das

B)

Jawaharlal Nehru

C)

Dadabhai Naoroji

D)

BalGangadharTilak

View Answer
157) Which of the following countries does not belong to the group of G-8 nations?

A)

Italy

B)

Canada

C)

Germany

D)

Australia

View Answer
158) Which of the following is not a stringed instrument?

A)

Guitar

B)

Sitar

C)

Trumpet

D)

Violin

View Answer
159) Which of the following was the first newspaper of India?

A)

The Times of India

B)

Maratha, Kesari

C)

Bengal Gazette

D)

The Hindu

View Answer
160) The largest coal reserves of India are found in

A)

Chhattisgarh

B)

Jharkhand

C)

Madhya Pradesh

D)

Orissa

View Answer
161) Who among the following pioneered ?Khilafat Movement??

A)

Sir Syed Ahmed Khan

B)

M.A. Jinnah

C)

Mahatma Gandhi

D)

All Brothers

View Answer
162) The first Indian woman President of the Indian National Congress was

A)

Sarojini Naidu

B)

Kasturba Gandhi

C)

Annie Besant

D)

VijayalakshmiPandit

View Answer
163) Who was founder of ?All India HarijanSangha? in 1932?

A)

M.K. Gandhi

B)

B.R. Ambedkar

C)

Jagjivan Ram

D)

Vinoba Bhave

View Answer
164) Which country is the largest film producer in the world?

A)

India

B)

America

C)

China

D)

England

View Answer
165) Mahatma Gandhi was assassinated on

A)

January 26, 1948

B)

January 30,        1948

C)

January 30, 1949

D)

January 26,        1950

View Answer
166) Heinrich Hertz, who discovered radio waves, belonged to

A)

Germany

B)

Sweden

C)

USA

D)

UK

View Answer
167) Before Delhi, where was the capital of India during the British India?

A)

Lucknow

B)

Bombay

C)

Calcutta

D)

Patna

View Answer
168) What is the minimum permissible age for employment in any factory or mine?

A)

12 years

B)

14 years

C)

16 years

D)

18 years

View Answer
169)  ?World Environment Da/ is celebrated on

A)

June 5

B)

September 7

C)

October 8

D)

February 10

View Answer
170) BPO is an abbreviation for

A)

Bharat Petroleum Organisation

B)

Business Process Outsourcing

C)

Business Products Outsourcing

D)

Bharat Pesticides Outlet

View Answer
171) Which of the following is used as a coolant in nuclear reactors?

A)

Heavy water

B)

Cadmium

C)

Liquid sodium

D)

Graphite

View Answer
172) In an atomic nucleus, neutrons and protons are held together by

A)

gravitational forces

B)

magnetic forces

C)

exchange forces

D)

coulombic forces

View Answer
173) Which of the following are most penetrating?

A)

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

B)

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

C)

\[\text{ }\!\!\gamma\!\!\text{ -}\]rays

D)

\[\text{X-}\]rays

View Answer
174) The average salinity of sea water is

A)

2%

B)

2.5%

C)

3%

D)

3.5%

View Answer
175) The purest form of iron is

A)

steel

B)

cast iron

C)

pig iron

D)

wrought iron

View Answer
176) The most malleable metal is

A)

silver

B)

gold

C)

aluminium

D)

sodium

View Answer
177) Carbon, diamond and graphite are together called

A)

isomers

B)

allotropes

C)

isomorphs

D)

isotopes

View Answer
178) In which organ of the human body, are the lymphocyte cells formed?

A)

Liver

B)

Long bone

C)

Pancreas

D)

Spleen

View Answer
179) Flower colours are due to

A)

chlorophyll

B)

melanin

C)

phytochromes

D)

anthocyanins

View Answer
180) Which among the following is the richest source of ascorbic acid?

A)

Apple

B)

Bean

C)

Carrot

D)

Guava

View Answer
181) I can do a piece of work in 8 days, which can be done by you in 10 days. How long will it take to do it if we work together?

A)

4

B)

3

C)

5

D)

9

View Answer
182) A car can finish a certain journey in 10 h @ 48 km/h. In order to cover the same distance in 8 h, the speed of the car must be increased by

A)

6 km/h

B)

7.5 km/h

C)

12 km/h

D)

15 km/h

View Answer
183) After being set up, a company manufactured 6000 scooters in the third year and 7000 scooters in the seventh year. Assuming that the production increases uniformly by a fixed number every year, what is the production in the tenth year?

A)

7850

B)

7650

C)

7750

D)

7950

View Answer
184) If Dennis is 1/3rd the age of his father Keith now, and was 1/4th the age of his father 5 years ago, then how old will his father Keith be 5 years from now?

A)

20 years

B)

45 years

C)

40 years

D)

50 years

View Answer
185) Rs. 6500 were divided equally among a certain number of persons. Had there been 15 more persons each would have got Rs 30 less. Find the original number of persons.

A)

45

B)

50

C)

55

D)

48

View Answer
186) What is the profession of E?

A)

Lawyer

B)

Teacher

C)

Engineer

D)

Doctor

View Answer
187) How A is related to E?

A)

Brother

B)

Uncle

C)

Mother

D)

Grandfather

View Answer
188) What is the minimum number of females in the family?

A)

One

B)

Two

C)

Three

D)

Four

View Answer
189) What is the profession of A?

A)

Lawyer

B)

Teacher

C)

Engineer

D)

Doctor

View Answer
190) Which of the following is the pairs of couples in the family?

A)

AD and BC

B)

AB and BD

C)

FE and AD

D)

DE and BF

View Answer
191) Which of the following words best describes fungus as depicted in the passage?

A)

Unevolved

B)

Sporadic

C)

Enigmatic

D)

Parasitic

View Answer
192) The passage states all the following about fungi except

A)

they are responsible for the decomposition of much plant life

B)

they cannot live completely apart from other plants

C)

they are vastly different from other plants

D)

they are poisonous to resin-producing plants

View Answer
193) The author?s statement that ?you are watching a fungus eating? can be best described as

A)

figurative

B)

ironic

C)

erroneous

D)

contradictory

View Answer
194) Which of the following statements is not implied in the passage?

A)

Humans receive energy from plants

B)

Fungi cannot assimilate the sun?s energy on their own

C)

The source of energy of plants is chlorophyll

D)

The ultimate source of energy is the sun

View Answer
195) The author is primarily concerned with

A)

warning people of the dangers of fungi

B)

relating how most plants use solar energy

C)

describing the action of fungi

D)

explaining the long life of redwood trees

View Answer
196) Select the appropriate word, which is nearest in meaning to the word given in capital letters. Charges

A)

Income

B)

Payment

C)

Fee

D)

Profit

View Answer
197) Select the appropriate word, which is nearest in meaning to the word given in capital letters. Endure

A)

Ensure

B)

Tolerate

C)

Date

D)

Revise

View Answer
198) Select the appropriate word, which is nearest in meaning to the word given in capital letters. Malady

A)

Ill-will

B)

Ill-luck

C)

Ill-feeling

D)

Illness

View Answer
199) Select the appropriate word, which is nearest in meaning to the word given in capital letters. Abhor

A)

Dislike

B)

Disfigure

C)

Hate

D)

Unpleasant

View Answer
200) Select the appropriate word, which is nearest in meaning to the word given in capital letters. Longing

A)

Long

B)

Big

C)

Desire

D)

Divide

View Answer

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