Solved papers for Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2006

Chhattisgarh PMT Solved Paper-2006 Total Questions - 400

1) The value of current \[I\] in the circuit will be

A)

1.7 A

B)

2.1 A

C)

3 A

D)

zero

View Answer
2) Two plane mirrors are inclined to each other at angle \[60{}^\circ \]. Ray incident on first mirror parallel to the second mirror becomes parallel to first mirror after reflection. Angle of deviation is

A)

\[30{}^\circ \]

B)

\[60{}^\circ \]

C)

\[90{}^\circ \]

D)

\[120{}^\circ \]

View Answer
3) The equivalent capacitance of the circuit will be

A)

\[1.\mu F\]

B)

\[3\mu F\]

C)

\[9\mu F\]

D)

\[4\mu F\]

View Answer
4) If the equivalent capacitance between A and B is \[1\mu F,\] then the value of C will be

A)

\[2\mu F\]

B)

\[4\mu F\]

C)

\[3\mu F\]

D)

\[6\mu F\]

View Answer
5) If the input is given between A and C, then the output at the ends of R will be

A)

fully rectified

B)

half rectified

C)

AC

D)

None of these

View Answer
6) If the acceleration-displacement graph of simple harmonic motion of a particle is given, then the time period of the particle will be

A)

2n

B)

3n

C)

An

D)

5n

View Answer
7) Figure shows four, p-V diagram for the given sample of gas. In which case no exchange of eat occurs with the sample?

A)

P

B)

Q

C)

R

D)

S

View Answer
8) The charge on a particle Y is double the charge on particle X. These two particles X and Y after being accelerated through the same potential difference enter a region of uniform magnetic field and describe circular paths of radii J? and \[{{R}_{2}}\] respectively. The ratio of the mass of X to that of V is

A)

\[{{\text{(}{{\text{R}}_{\text{1}}}\text{/}{{\text{R}}_{\text{2}}}\text{)}}^{\text{2}}}\]

B)

\[{{\text{(}{{\text{R}}_{\text{1}}}\text{/2}{{\text{R}}_{\text{2}}}\text{)}}^{\text{2}}}\]

C)

\[\text{R}\,_{1}^{2}\text{/2R}_{2}^{2}\]

D)

\[\text{2}{{\text{R}}_{\text{1}}}\text{/}{{\text{R}}_{\text{2}}}\]

View Answer
9) In a step up transformer the turn ratio is 1:10. A resistance of 200\[\Omega \] connected across the secondary is drawing a current of 0.5 A. What is the primary voltage and current?

A)

50 V, 1 A

B)

10 V, 5 A

C)

25V, 4 A

D)

20V, 2 A

View Answer
10) Dimensions of \[{{\varepsilon }_{0}}\] are

A)

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

B)

\[\text{ }\!\![\!\!\text{ }{{\text{M}}^{2}}{{\text{L}}^{\text{-3}}}{{\text{T}}^{\text{2}}}\text{A }\!\!]\!\!\text{ }\]

C)

\[\text{ }\!\![\!\!\text{ }{{\text{M}}^{-2}}{{\text{L}}^{\text{-3}}}{{\text{T}}^{4}}{{\text{A}}^{2}}\text{ }\!\!]\!\!\text{ }\]

D)

\[\text{ }\!\![\!\!\text{ }{{\text{M}}^{2}}{{\text{L}}^{\text{3}}}{{\text{T}}^{\text{-2}}}\text{A }\!\!]\!\!\text{ }\]

View Answer
11) Dimensions of \[\frac{R}{L}\] are

A)

\[\text{ }\!\![\!\!\text{ }{{\text{T}}^{\text{2}}}\text{ }\!\!]\!\!\text{ }\]

B)

\[\text{ }\!\![\!\!\text{ T }\!\!]\!\!\text{ }\]

C)

\[\text{ }\!\![\!\!\text{ }{{\text{T}}^{-2}}\text{ }\!\!]\!\!\text{ }\]

D)

\[\text{ }\!\![\!\!\text{ }{{\text{T}}^{-2}}\text{ }\!\!]\!\!\text{ }\]

View Answer
12) The unit of magnetic moment is

A)

A-m2

B)

A-m

C)

A-m3

D)

kg-m3

View Answer
13) In \[\text{SI}\] system the unit of dipole moment is

A)

C-m

B)

C-m2

C)

C/m2

D)

C/m

View Answer
14) Electron volt is a unit of

A)

potential

B)

charge

C)

power

D)

energy

View Answer
15) Which of the following can be written as \[\text{kg}\,\text{-}\,{{\text{m}}^{\text{2}}}{{\text{A}}^{\text{-2}}}{{\text{T}}^{\text{-2}}}\,\text{?}\]

A)

Inductance

B)

Reactance

C)

Capacitance

D)

Resistance

View Answer
16) If the frequency of \[{{K}_{a,}}\] .X-ray of the element of atomic number 31 is/, then the frequency of\[{{K}_{a,}}\] X-ray for atomic number 51 is

A)

\[\text{25/9}f\]

B)

\[\text{16/25}f\]

C)

\[\text{9/25}f\]

D)

zero

View Answer
17) A bird weighing 1 kg sitting on the base of a wire mesh cage weighing 1.5 kg. The bird starts flying in the cage. The weight of the bird cage assembly will be

A)

1250 g

B)

1500 g

C)

1750g

D)

None of these

View Answer
18) If the escape velocity for a monkey from the earth surface is 11.2 km/s, then the escape velocity for the elephant is

A)

less than 11.2

B)

more than 11.2

C)

11.2 km/s

D)

None of these

View Answer
19) If the sphere of iron is heated, then its

A)

density decreases

B)

volume increases

C)

radius decreases

D)

None of these

View Answer
20) If a bar magnet is droping through the copper ring, then its velocity

A)

decreases

B)

increases

C)

remain unaffected

D)

None of these

View Answer
21) The power factor of a good choke coil is

A)

nearly zero

B)

exactly zero

C)

nearly one

D)

exactly one

View Answer
22) If two spheres of same masses and radius are brought in contact, then the force of attraction between them will be proportional to

A)

r2

B)

r3

C)

r6

D)

r4

View Answer
23) Capacitors are used for

A)

AC

B)

DC

C)

Both AC and DC

D)

None of these

View Answer
24) The ratio of current flowing through primary and secondary of a transformers depends on

A)

number of turns

B)

resistance

C)

capacitance

D)

inductance

View Answer
25) A proton, a deuteron and an a-particle having the same momentum, enters a region of uniform electric field between the parallel plates of a capacitor. If the electric field is perpendicular to the initial direction of the particles. Then, the ratio of deviations of these particles

A)

1:2:8

B)

1:2:4

C)

1:2:2

D)

1:1:2

View Answer
26) If a radioactive substance decays \[\frac{1}{16}\]th of its original amount in 2 h, then the half-life of that substance is

A)

15 min

B)

30 min

C)

45 min

D)

None of these

View Answer
27) If on applying the potential of 20 V on a conductor its conductance becomes 8 \[{{(\Omega )}^{-1}},\] then the current flowing through it will be

A)

120 A

B)

160 A

C)

90 A

D)

80 A

View Answer
28) Equivalent resistance of the given circuit is

A)

R

B)

R/2

C)

R/4

D)

R/6

View Answer
29) In a biprism experiment by using light of wavelength \[5000\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\], 5 mm wide fringes are obtained on a screen 1.0 m away from the coherent sources. The separation between the two coherent sources is

A)

1.0 mm

B)

0.1 mm

C)

0.05 mm

D)

0.01 mm

View Answer
30) The power of lens used by a short-sighted person is -2 D. Find the maximum distance of an object, which he can see without spectacles

A)

25 cm

B)

50 cm

C)

100cm

D)

10cm

View Answer
31) Kirchhoffs first law\[(\Sigma i=0)\] expresses the conservation of

A)

energy

B)

charge

C)

momentum

D)

None of these

View Answer
32) In p-type semiconductors majority charge carriers are

A)

electrons

B)

holes

C)

neutrons

D)

protons

View Answer
33) A 1 µF capacitance of TV is subjected to 4000 V potential difference. The energy stored in the capacitor is

A)

8 J

B)

16 J

C)

\[4\times {{10}^{-3}}\text{J}\]

D)

\[2\times {{10}^{-3}}\text{J}\]

View Answer
34) A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the work done is 25 J the angle which the force makes with the direction of motion of the body is

A)

\[0{}^\circ \]

B)

\[30{}^\circ \]

C)

\[60{}^\circ \]

D)

\[90{}^\circ \]

View Answer
35) A particle of mass m is projected with a velocity making an angle of \[45{}^\circ \] with the horizontal. The magnitude of angular momentum of the projectile about the axis of projection when the particle is at maximum height

A)

zero

B)

\[\frac{m{{v}^{3}}}{4\sqrt{2g}}\]

C)

\[\frac{m{{v}^{3}}}{\sqrt{2}g}\]

D)

\[\frac{m{{v}^{3}}}{2g}\]

View Answer
36) If the moment of inertia of a disc about an axis tangential and parallel to its surface be \[I,\] then what will be the moment of inertia about the axis tangential but perpendicular to the surface?

A)

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

B)

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

C)

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

D)

\[\frac{5}{4}I\]

View Answer
37) The magnetic needle of a tangent galvanometer is deflected by an angle \[30{}^\circ \] due to a magnet. The horizontal component of earth's magnetic field is \[0.34\times {{10}^{-4}}T\] along the plane of the coil. The intensity of magnetic field of magnet is

A)

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

B)

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

C)

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

D)

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

View Answer
38) A coil of resistance R and inductance L is connected to a battery of emf E volt. The final current in the coil is

A)

E/R

B)

E/L

C)

\[\sqrt{\text{E/}({{R}^{2}}+{{L}^{2}})}\]

D)

\[\sqrt{\frac{EL}{({{R}^{2}}+{{L}^{2}})}}\]

View Answer
39) The refractive indices of violet and red light are 1.54 and 1.52 respectively. If the angle of the prism is \[10{}^\circ \], the angular dispersion is

A)

\[0.02{}^\circ \]

B)

\[0.2{}^\circ \]

C)

\[3.06{}^\circ \]

D)

\[30.6{}^\circ \]

View Answer
40) The focal lengths of the objective and eye-piece of a telescope are respectively 100 cm and 2cm. The moon substends an angle of \[0.5{}^\circ \] at the eye. If it is looked through the telescope, the angle subtended by the moon's image will be

A)

\[100{}^\circ \]

B)

\[50{}^\circ \]

C)

\[25{}^\circ \]

D)

\[10{}^\circ \]

View Answer
41) The temperature of a body on Kelvin scale is found to be x K. When it is measured by Fahrenheit thermometer, it is found to be \[x{}^\circ \] F, then the value of x is

A)

30

B)

313

C)

574.25

D)

301.25

View Answer
42) Two containers of equal volume contain the same gas at pressure \[{{P}_{1}}\] and \[{{P}_{2}}\] and absolute temperature \[{{T}_{1}}\] and \[{{T}_{2}}\] respectively. On joining the vessels the gas reaches a common pressure   and common temperature T. The ratio p/T is equal to

A)

\[\frac{{{P}_{1}}}{{{T}_{1}}}+\frac{{{P}_{2}}}{{{T}_{2}}}\]

B)

\[\frac{{{P}_{1}}{{T}_{1}}+{{P}_{2}}{{T}_{2}}}{{{({{T}_{1}}+{{T}_{2}})}^{2}}}\]

C)

\[\frac{{{P}_{1}}{{T}_{2}}+{{P}_{2}}{{T}_{1}}}{{{({{T}_{1}}+{{T}_{2}})}^{2}}}\]

D)

\[\frac{{{P}_{1}}}{2{{T}_{1}}}+\frac{{{P}_{2}}}{2{{T}_{2}}}\]

View Answer
43) \[1c{{m}^{3}}\] of water at its boiling point absorbs 540 cal of heat to become steam with a volume of \[1671\text{ }c{{m}^{3}}.\] If the atmospheric pressure \[=1.013\times {{10}^{5}}N/{{m}^{2}}\] and the mechanical equivalent of heat = 4.19 J/cal, the energy spent in this process in overcoming intermolecular forces is

A)

540 cal

B)

40cal

C)

500 cal

D)

zero

View Answer
44) N atoms of a radioactive element emit n-alpha particles per second. The half-life of the element is

A)

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

B)

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

C)

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

D)

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

View Answer
45) Two long parallel wires P and Q are both perpendicular to the plane of the paper with distance 5 m between them. If P and Q carry current of 2.5 A and 5 A respectively in the same direction, then the magnetic field at a point half way between the wires is

A)

\[\frac{\sqrt{3}{{\mu }_{0}}}{2\pi }\]

B)

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

C)

\[\frac{3{{\mu }_{0}}}{2\pi }\]

D)

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

View Answer
46) An alternating potential of frequency \[f\] is applied on a circuit containing a resistance R and a choke L in series. The impedance of this current is

A)

\[R+2\pi fL\]

B)

\[\sqrt{{{R}^{2}}+4{{\pi }^{2}}{{f}^{2}}{{L}^{2}}}\]

C)

\[\sqrt{{{R}^{2}}+{{L}^{2}}}\]

D)

\[\sqrt{{{R}^{2}}+2\pi fL}\]

View Answer
47) There is a voltmeter in a circuit. In order to triple its range, the resistance of how much value should be used?

A)

2R

B)

R/2

C)

3R

D)

4R

View Answer
48) A wire is bent in the form of a triangle now the equivalent resistance R between its one end and (he midpoint of the side is

A)

\[\frac{5R}{12}\]

B)

\[\frac{7R}{12}\]

C)

\[\frac{3R}{12}\]

D)

\[\frac{R}{12}\]

View Answer
49) Which of the following is incorrect?

A)

\[{{C}_{V}}=\frac{R}{\gamma -1}\]

B)

\[{{C}_{P}}=\frac{\gamma R}{\gamma -1}\]

C)

\[\frac{{{C}_{P}}}{{{C}_{v}}}=\gamma \]

D)

\[{{C}_{v}}-{{C}_{P}}=2R\]

View Answer
50) 50.          A mass of 20 kg moving with a speed of 10 m/ s                 collides with another stationary mass of 5 kg. As a result of the collision both masses s; together. The kinetic energy of the compos. mass will be

A)

600 J

B)

800 J

C)

1000J

D)

1200J

View Answer
51) The electric field between two parallel plates of a capacitor is \[2.1\times {{10}^{-5}}.\] If a medium is inserted between the plates than the electric field becomes \[1.0\times {{10}^{-5}}.\] Now, the value of dielectric will be

A)

2

B)

3

C)

4

D)

5

View Answer
52) A ray of light propagates from glass (refracts index = 3/2) to water (refractive index = 4/3). The value of the critical angle is

A)

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

B)

\[{{\sin }^{-1}}\left( \sqrt{\frac{8}{9}} \right)\]

C)

\[{{\sin }^{-1}}\left( \frac{8}{9} \right)\]

D)

\[{{\sin }^{-1}}\left( \frac{5}{7} \right)\]

View Answer
53) An electric heater of resistance \[6\,\Omega \] is run are 10 min on a 120 V line. The energy liberated in this period of time is

A)

\[7.2\times {{10}^{3}}J\]

B)

\[14.4\times {{10}^{5}}J\]

C)

\[43.2\times {{10}^{4}}J\]

D)

\[28.8\times {{10}^{4}}J\]

View Answer
54) Lenz's law gives

A)

the magnitude of the induced emf

B)

the direction of the induced current

C)

both the magnitude and direction of the induced current

D)

the magnitude of the induced current

View Answer
55) When two bodies collide elastically, then

A)

kinetic energy of the system alone is conserved

B)

only momentum is conserved

C)

both energy and momentum are conserved

D)

neither energy nor momentum is conserved

View Answer
56) A satellite moves around the earth in a circular orbit of radius r with speed v. If the mass of the satellite is M, its total energy is

A)

\[-1/2M{{v}^{2}}\]

B)

\[1/2M{{v}^{2}}\]

C)

\[3/2M{{v}^{2}}\]

D)

\[M{{v}^{2}}\]

View Answer
57) A telescope, consisting of an objective of focal length 60 cm and a single eye lens of focal length 5 cm is focussed on a distant object is such a way that parallel rays comes out from the eye lens. If the object subtends an angle \[2{}^\circ \] at the objective the angle subtended by the image at the eye is

A)

\[10{}^\circ \]

B)

\[24{}^\circ \]

C)

\[50{}^\circ \]

D)

\[1/6{}^\circ \]

View Answer
58) If the steel bob of a simple pendulum is replaced by a wooden bob, then its time period will

A)

increase

B)

decrease

C)

remains the same

D)

first increases and then decreases

View Answer
59) An electric dipole is placed along the x-axis at the origin 0. A point P is at a distance of 20 cm from this origin such that OP makes an angle \[\text{ }\!\!\pi\!\!\text{ /3}\]with the x-axis. If the electric field at P makes an angle \[\text{ }\!\!\theta\!\!\text{ }\] with the x-axis, the value of \[\text{ }\!\!\theta\!\!\text{ }\] would be

A)

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

B)

\[\frac{\pi }{3}+{{\tan }^{-1}}\left( \frac{\sqrt{3}}{2} \right)\]

C)

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

D)

\[{{\tan }^{-1}}\left( \frac{\sqrt{3}}{2} \right)\]

View Answer
60) The wavelength of light in two liquids x and y are \[3500\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\] and \[7000\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\], then the critical angle of x relative toy will be

A)

\[60{}^\circ \]

B)

\[45{}^\circ \]

C)

\[30{}^\circ \]

D)

\[15{}^\circ \]

View Answer
61) An ideal transformer has 500 turns in the primary and 2500 in the secondary. The meters of the secondary are indicating 200 V, 8 A, under these conditions. What would the meters of the primary read?

A)

100 V, 16 A

B)

40 V, 40 A

C)

160 V, 10 A

D)

80 V, 20 A

View Answer
62) Sensitivity of potentiometer can be increased by

A)

increasing the emf of the cell

B)

increasing the length of the potentiometer wire

C)

decreasing the length of the potentiometer wire

D)

None of the above

View Answer
63) The following four wires are made of same material and same tension is applied on them. Which one will have maximum increase in length?

A)

Length =100 cm. Diameter = 1 mm

B)

Length = 50 cm, Diameter = 0.5 mm

C)

Length = 200 cm, Diameter = 2 mm

D)

Length = 300 cm. Diameter = 3 mm

View Answer
64) Radius of a capillary is \[2\times {{10}^{-3}}m.\text{ }A\] liquid of weight \[6.28\times {{10}^{-4}}N\] may remain in the capillary, then the surface tension of liquid will be

A)

\[5\times {{10}^{-3}}N/m\]

B)

\[5\times {{10}^{-2}}N/m\]

C)

5 N/m

D)

50 N/m

View Answer
65) If two tuning forks A and B are sounded together, they produce 4 beats/s. A is then slightly loaded with wax, they produce 2 beats/s when sounded again. The frequency of A is 256 Hz. The frequency of B will be

A)

250 Hz

B)

252 Hz

C)

260 Hz

D)

262 Hz

View Answer
66) Two waves are given by \[{{y}_{1}}=a\,\sin \,\]\[(\omega t-kx)\]and \[{{y}_{2}}=a\,\cos \]\[(\omega t-kx).\]The phase difference between the two waves is

A)

\[\text{ }\!\!\pi\!\!\text{ /4}\]

B)

\[\text{ }\!\!\pi\!\!\text{ }\]

C)

\[\text{ }\!\!\pi\!\!\text{ /8}\]

D)

\[\text{ }\!\!\pi\!\!\text{ /2}\]

View Answer
67) Period of oscillation of mass attached to a spring and performing SHM is T. The spring is now cut into four equal pieces and the same mass attached to one piece. Now, the period of its simple harmonic oscillations is

A)

2T

B)

T/4

C)

T/2

D)

T

View Answer
68) An electron makes a transition from orbit n = 4 to the orbit n = 2 of a hydrogen atom. The wave number of the emitted radiation (R = Rydberg's constant) will be

A)

16/3R

B)

2R/16

C)

3R/16

D)

4R/16

View Answer
69) A uniform rope of length \[I\] lies on a table. If the coefficient of friction is \[\mu \] then the maximum length \[{{l}_{1}}\] of the part of this rope which can overhang from the edge of the table without sliding down is

A)

\[\frac{1}{\mu }\]

B)

\[\frac{1}{\mu +1}\]

C)

\[\frac{\mu 1}{1+\mu }\]

D)

\[\frac{\mu l}{\mu -1}\]

View Answer
70)   The magnetic flux linked with a coil at any instant t is given by \[\phi =5{{t}^{3}}-100t+300,\] the emf induced in the coil after t = 2 s is

A)

-40V

B)

40V

C)

140V

D)

300V

View Answer
71) An ideal heat engine working between temperature \[{{T}_{1}}\] and \[{{T}_{2}}\] has an efficiency \[\eta ,\] the new efficiency if temperature of both the source and sink are doubled, will be

A)

\[\eta /2\]

B)

\[\eta \]

C)

\[2\eta \]

D)

\[3\eta \]

View Answer
72) A 50 g bullet moving with velocity 10 m/s strikes a block of mass 950 g at rest and gets embedded into it. The loss in kinetic energy will be

A)

100%

B)

95%

C)

5%

D)

50%

View Answer
73) The sun radiates energy in all directions. The average radiation received on the earth surface from the sun per second is \[1.4\text{ }kW/{{m}^{3}}.\] The average distance between sun and earth is \[1.5\times {{10}^{11}}m.\] The mass lost by the sun per day

A)

\[4.4\times {{10}^{10}}kg\]

B)

\[7.6\times {{10}^{14}}kg\]

C)

\[3.8\times {{10}^{11}}kg\]

D)

\[3.8\times {{10}^{14}}kg\]

View Answer
74) Every gas behaves as an ideal gas

A)

at high temperature and low pressure

B)

at low temperature and high pressure

C)

at normal temperature and pressure

D)

None of the above

View Answer
75) In an AC circuit, the current is given by \[I=5\,\sin (100t-\text{ }\!\!\pi\!\!\text{ /2)}\] and the alternating potential is V = 200 sin (100)C volt. The power consumed in the circuit is

A)

20 W

B)

40 W

C)

1000 W

D)

zero

View Answer
76) The maximum wavelength of radiation that can produce photoelectric effect in a certain metal is 200 nm. The maximum kinetic energy acquired by electron due to radiation of wavelength 100 nm will be

A)

12.4 eV

B)

6.2 eV

C)

100 eV

D)

200 eV

View Answer
77) The material of wire of potentiometer is

A)

copper

B)

steel

C)

manganin

D)

aluminium

View Answer
78) A liquid cools down from \[70{}^\circ C\] to \[60{}^\circ C\] in 5 min. The time taken to cool it from \[60{}^\circ C\] to \[50{}^\circ C\] will be

A)

5 min

B)

lesser than 5 min

C)

greater than 5 min

D)

lesser or greater than 5 min depending upon the density of the liquid

View Answer
79) There are 50 turns of a wire in every cm length of a long solenoid. If 4 A current is flowing in the solenoid, the approximate value of magnetic field along its axis at an internal point and at one end will be respectively

A)

\[\begin{align} & 12.6\times {{10}^{-3}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ & 6.3\times {{10}^{-3}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ \end{align}\]

B)

\[\begin{align} & 12.6\times {{10}^{-3}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ & 25.1\times {{10}^{-3}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ \end{align}\]

C)

\[\begin{align} & 25.1\times {{10}^{-3}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ & 12.6\times {{10}^{-3}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ \end{align}\]

D)

\[\begin{align} & 25.1\times {{10}^{-5}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ & 12.6\times {{10}^{-5}}\text{Wb/}{{\text{m}}^{\text{2}}} \\ \end{align}\]

View Answer
80) Monochromatic light of frequency \[5\times {{10}^{14}}Hz\] travelling in vacuum enters medium of refractive index 1.5. Its wavelength in the medium is

A)

\[4000\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

B)

\[5000\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

C)

\[6000\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

D)

\[5500\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

View Answer
81) The vector form of Biot-Savart's law for a current carrying element is

A)

\[d\,\mathbf{\vec{B}}=\frac{{{\mu }_{0}}}{4\pi }\frac{Id\mathbf{\vec{l}}\,\sin \,\phi }{{{r}^{2}}}\]

B)

\[d\,\mathbf{\vec{B}}=\frac{{{\mu }_{0}}}{4\pi }\frac{Idl\times \,\mathbf{\hat{r}}}{{{r}^{2}}}\]

C)

\[d\,\mathbf{\vec{B}}=\frac{{{\mu }_{0}}}{4\pi }\frac{Id\mathbf{\vec{l}}\times \,\mathbf{\hat{r}}}{{{r}^{3}}}\]

D)

\[d\,\mathbf{\vec{B}}=\frac{{{\mu }_{0}}}{4\pi }\frac{Id\mathbf{\vec{l}}\times \,\mathbf{\hat{r}}}{{{r}^{2}}}\]

View Answer
82) The potential energy of a body is given by \[U=A-B{{x}^{2}}\] (where x is the displacement). The magnitude of force acting on the particle is

A)

constant

B)

proportional to

C)

proportional to x2

D)

proportional to 1/x

View Answer
83) Spherical ball of radius R is falling in a viscous fluid of viscosity \[\eta \] with a velocity v. The retarding viscous force acting on the spherical ball is

A)

directly proportional to radius JR but inversely proportional to velocity v

B)

directly proportional to both radius R and to velocity v

C)

inversely proportional to both radius R and velocity v

D)

inversely proportional to radius R but directly proportional to velocity v

View Answer
84) Even Carnot engine cannot give 100% efficiency because we cannot

A)

prevent radiation

B)

find ideal sources

C)

reach absolute zero temperature

D)

eliminate friction

View Answer
85) The work function of a substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately

A)

540 nm

B)

400 nm

C)

310 nm

D)

220 nm

View Answer
86) A particle of charge \[-16\times {{10}^{-18}}C\]moving with velocity \[10\text{ }m{{s}^{-1}}\] along the x-axis enters a region where a magnetic field of induction B is along the y-axis and an electric field of magnitude \[{{10}^{4}}/m\]is along the negative z-axis. If the charged particle continues moving along the x-axis, the magnitude of B is

A)

\[{{10}^{16}}\text{Wb/}{{\text{m}}^{\text{2}}}\]

B)

\[{{10}^{5}}\text{Wb/}{{\text{m}}^{\text{2}}}\]

C)

\[{{10}^{3}}\text{Wb/}{{\text{m}}^{\text{2}}}\]

D)

\[{{10}^{-3}}\text{Wb/}{{\text{m}}^{\text{2}}}\]

View Answer
87) If No is the original mass of the substance of half-life period \[{{T}_{1/2}}=5\] yr, then the amount of substance left after 15 yr is

A)

\[{{N}_{0}}\text{/8}\]

B)

\[{{N}_{0}}\text{/16}\]

C)

\[{{N}_{0}}\text{/2}\]

D)

\[{{N}_{0}}\text{/4}\]

View Answer
88) A charged ball B hangs from a silk thread S, which makes an angle \[\text{ }\!\!\theta\!\!\text{ }\] with a large charged conducting sheet P, as shown in the figure. The surface charge density \[\sigma \] of the sheet is proportional to

A)

\[\cot \,\text{ }\!\!\theta\!\!\text{ }\]

B)

\[\cot \,\text{ }\!\!\theta\!\!\text{ }\]

C)

\[\tan \,\text{ }\!\!\theta\!\!\text{ }\]

D)

\[\sin \,\text{ }\!\!\theta\!\!\text{ }\]

View Answer
89) If \[\,{{\text{ }\!\!\theta\!\!\text{ }}_{i}}\] is the inversion temperature, \[\,{{\text{ }\!\!\theta\!\!\text{ }}_{n}}\] is the neutral temperature, \[\,{{\text{ }\!\!\theta\!\!\text{ }}_{c}}\] is the temperature of the cold junction for thermocouple, then

A)

\[\,{{\text{ }\!\!\theta\!\!\text{ }}_{i}}+{{\text{ }\!\!\theta\!\!\text{ }}_{c}}={{\text{ }\!\!\theta\!\!\text{ }}_{n}}\]

B)

\[\,{{\text{ }\!\!\theta\!\!\text{ }}_{i}}\text{-}{{\text{ }\!\!\theta\!\!\text{ }}_{c}}=2{{\text{ }\!\!\theta\!\!\text{ }}_{n}}\]

C)

\[\,\frac{{{\text{ }\!\!\theta\!\!\text{ }}_{i}}\text{+}\,{{\text{ }\!\!\theta\!\!\text{ }}_{c}}}{2}={{\text{ }\!\!\theta\!\!\text{ }}_{n}}\]

D)

\[\,{{\text{ }\!\!\theta\!\!\text{ }}_{c}}\text{-}{{\text{ }\!\!\theta\!\!\text{ }}_{i}}=2{{\text{ }\!\!\theta\!\!\text{ }}_{n}}\]

View Answer
90) Speeds of two identical cars are u are 4u at a specific instant. The ratio of the respective distances in which the two cars are stopped in the same time

A)

1:1

B)

1: 4

C)

1:8

D)

1:16

View Answer
91) Before using the tangent galvanometer, its coil is set up in

A)

magnetic meridian

B)

perpendicular to magnetic meridian

C)

at angle of \[45{}^\circ \] to magnetic meridian

D)

it does not require any setting

View Answer
92) Which of the following plots may represent reactance of a series LC combination?

A)

a

B)

b

C)

c

D)

d

View Answer
93) Three identical capacitors are connected together differently. For the same voltage to every combination the one that stores maximum energy is

A)

the three in series

B)

the three in parallel

C)

two in series and the third in parallel with it

D)

two in parallel and the third in series with it

View Answer
94) Each resistance shown in the circuit is of \[10\,\Omega .\] The equivalent resistance between the points X and V is

A)

\[10\,\Omega \]

B)

\[20\,\Omega \]

C)

\[25\,\Omega \]

D)

\[30\,\Omega \]

View Answer
95) A L-R circuit consists of an inductance of 8 mH and a resistance of \[4\,\Omega .\] The time constant of the circuit is

A)

2ms

B)

12ms

C)

32ms

D)

500s

View Answer
96) Three identical resistances A, B and C are connected as shown in the figure. The heat produced will be maximum in

A)

B

B)

same for A, B and C

C)

A

D)

B and C

View Answer
97) A kilowatt hour is equal to

A)

\[3.6\times {{10}^{6}}\text{J}\]

B)

\[3.6\times {{10}^{4}}\text{J}\]

C)

\[3.6\times {{10}^{3}}\text{J}\]

D)

\[6\times {{10}^{-4}}\text{J}\]

View Answer
98) Wire P and Q have the same resistance at ordinary (room) temperature. When heated, resistance of? increases and that of Q decreases. We conclude that

A)

P and Q are conductors of different materials.

B)

P is n-type semiconductor and Q is p-type semiconductor

C)

P is semiconductor and Q is conductor

D)

P is conductor and Q is semiconductor

View Answer
99) In the disintegration series \[_{92}^{238}U\xrightarrow[{}]{\alpha }X\xrightarrow[{}]{\text{ }\!\!\beta\!\!\text{ -}}_{\text{Z}}^{\text{A}}\text{Y}\] the values of Z and A respectively will be

A)

92,236

B)

88,230

C)

90, 234

D)

91, 234

View Answer
100) The plane faces of two identical plano-convex lenses, each having focal length of 40 cm, are placed against each other to form a common convex lens. The distance from this lens at which an object must be placed to obtain a real inverted image with magnification equal to unity is

A)

80cm

B)

40cm

C)

20cm

D)

160cm

View Answer
101) If an organic compound has \[C=40%,\] \[H=13.3%,\]\[N=46.67%\text{ },\] then the empirical formula for this compound is

A)

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

B)

\[{{C}_{2}}{{H}_{8}}{{N}_{2}}\]

C)

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

D)

None of these

View Answer
102) TEL is

A)

petrol fuel

B)

anti knocking compound

C)

gasoline

D)

insecticide

View Answer
103) DDT is related to

A)

insecticide

B)

fungicide

C)

chlorination

D)

florination

View Answer
104) Coordination number \[8:8\] is of

A)

\[CsCl\]

B)

\[KCl\]

C)

\[NaCl\]

D)

\[ZnS\]

View Answer
105) Which of the following inert gas is soluble in water?

A)

\[He\]

B)

\[Ne\]

C)

\[Ar\]

D)

\[Xe\]

View Answer
106) Number of peptide bonds in dipeptide is

A)

\[2\]

B)

\[1\]

C)

\[3\]

D)

\[4\]

View Answer
107) Cupellation method is used for the extraction of

A)

\[Cu\]

B)

\[Ag\]

C)

\[Na\]

D)

\[Al\]

View Answer
108) Blood sugar is

A)

fructose

B)

maltose

C)

haemoglobin

D)

glucose

View Answer
109) Lactose sugar is formed from

A)

d-galactose

B)

d-glucose

C)

d-galactose and d-glucose

D)

d-glucose and d-fructose

View Answer
110) The values for all the quantum numbers for 15th electron of chlorine are

A)

\[n=3,l=1,m=0,s=-1/2\]

B)

\[n=4,l=2,m=0,s=+1/2\]

C)

\[n=3,l=1,m=+1,s=+1/2\]

D)

\[n=2,l=0,m=0,s=+1/2\]

View Answer
111) The IUPAC name of the compound is\[\text{C}{{\text{H}}_{\text{3}}}-[C{{H}_{2}}]s-CH-\underset{\begin{smallmatrix} | \\ \underset{\underset{\underset{C{{H}_{3}}}{\overset{C{{H}_{2}}}{\mathop{|}}}\,}{\overset{\beta CHC{{H}_{3}}}{\mathop{|}}}\,}{\overset{C{{H}_{2}}}{\mathop{|}}}\, \end{smallmatrix}}{\mathop{\text{CH}}}\,-\text{C}{{\text{H}}_{\text{2}}}-\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ } \\ \underset{\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ } \\ {{\text{C}}_{\text{2}}}{{\text{H}}_{\text{5}}} \end{smallmatrix}}{\mathop{\text{C}{{\text{H}}_{\text{2}}}}}\,}{\overset{\text{ }\!\!\alpha\!\!\text{ CHC}{{\text{H}}_{\text{3}}}}{\mathop{\text{ }\!\!|\!\!\text{ }}}}\, \end{smallmatrix}}{\mathop{\text{CH}}}\,-{{\text{ }\!\![\!\!\text{ C}{{\text{H}}_{\text{2}}}\text{ }\!\!]\!\!\text{ }}_{\text{3}}}-\text{C}{{\text{H}}_{\text{3}}}\]

A)

\[7\text{ }\!\![\!\!\text{ }\beta \text{ }methyl\text{ }butyl],\text{ }9\text{ }butyl\text{ }tridecane\]

B)

\[3[\beta \text{ }ethyl\text{ }butyl],9\text{ }ethyl\text{ }tridecane\]

C)

\[2[\beta \text{ }ethyl\text{ }ethenyl],\text{ }8\text{ }propyl\text{ }decane\]

D)

None of the above

View Answer
112) The correct order of stability of following carbocation is (I) (II) (III) (IV) \[C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{+}{\mathop{C}}\,}}\,}}\,-C{{H}_{3}}\]

A)

\[(III)>(II)>(I)>(IV)\]

B)

\[(II)>(III)>(I)>(IV)\]

C)

\[(I)>(II)>(III)>(IV)\]

D)

None of the above

View Answer
113) Outermost configuration for \[Z=25,\] is

A)

\[4{{s}^{2}}3{{d}^{5}}\]

B)

\[5{{s}^{2}}4{{d}^{5}}\]

C)

\[4{{s}^{2}}3{{d}^{3}}\]

D)

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

View Answer
114) The colour of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]in acidic medium is

A)

red

B)

green

C)

yellow

D)

pink

View Answer
115) Baeyer's reagent decolourises which of the following?

A)

Alkane

B)

Alkene

C)

Alkene and alkyne both

D)

None of the above

View Answer
116) When \[Mn{{O}_{2}}\] is fused with \[KOH,\]a coloured compound is formed. The product and its colouris

A)

\[{{K}_{2}}Mn{{O}_{4}},\] purple green

B)

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

C)

\[M{{n}_{2}}{{O}_{3}},\] brown

D)

\[M{{n}_{2}}{{O}_{4}},\] black

View Answer
117) The type of hybridization present in each carbon of benzene is

A)

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

B)

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

C)

\[sp\]

D)

None of these

View Answer
118) Total number of isomers of \[{{C}_{4}}{{H}_{10}}O\] is

A)

\[7\]

B)

\[4\]

C)

\[3\]

D)

\[8\]

View Answer
119) Vitamin \[{{B}_{12}}\] contains

A)

\[Co\]

B)

\[Fe\]

C)

\[Zn\]

D)

\[Ca\]

View Answer
120) Night blindness is caused due to the deficiency of

A)

\[{{B}_{12}}\]

B)

\[A\]

C)

\[C\]

D)

\[D\]

View Answer
121) RNA does not contain

A)

Thymine

B)

Adenine

C)

Guanine

D)

Uracil

View Answer
122) Reaction of dry \[HCl\]with acetone gives

A)

aldol

B)

chloritone

C)

isopropyi alcohol

D)

None of these

View Answer
123) Which of the following is incorrect for radial distribution curve? n I Node

A)

\[n\] \[l\] Node

2 0 1

B)

\[n\] \[l\] Node

3 0 2

C)

\[n\] \[l\] Node

2 1 0

D)

\[n\] \[l\] Node

3 2 1

View Answer
124) If \[{{H}^{+}}\] concentration of fruit juice is \[3.3\times {{10}^{-2}},\]then its pH will be

A)

\[4.8\text{ }basic\]

B)

\[4.8\text{ }neutral\]

C)

\[4.8\text{ }acidic\]

D)

\[1.6\text{ }acidic\]

View Answer
125) \[{{C}_{2}}{{H}_{5}}OH\xrightarrow[NaOH]{{{I}_{2}}}A\xrightarrow[KOH]{Aqueous}B\]In equation given above A and B are respectively

A)

\[CH{{I}_{3}}\]and \[HCOOK\]

B)

\[CH{{I}_{3}}\] and \[C{{H}_{3}}COOK\]

C)

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

D)

\[CH{{I}_{3}}\] and \[{{H}_{2}}\]

View Answer
126) Formula of washing soda is

A)

\[N{{a}_{2}}C{{O}_{3}}.10{{H}_{2}}O\]

B)

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

C)

\[N{{a}_{2}}S{{O}_{4}}.10{{H}_{2}}O\]

D)

None of the above

View Answer
127) \[AgN{{O}_{3}}\] gives red colour with

A)

\[NaCl\]

B)

\[NaBr\]

C)

\[NaI\]

D)

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

View Answer
128) If the value of bond order is zero, then

A)

Molecule will be stable

B)

Molecule will be unstable

C)

Molecule will be in ionic state

D)

None of the above

View Answer
129) Which is responsible for the diagonal relation of lithium with magnesium?

A)

Less ionic radii

B)

High polarizing power

C)

Approximately equal electronegativity and affinity

D)

All of the above

View Answer
130) Trioxane has the formula it is prepared from

A)

formaldehyde

B)

methanol

C)

dichloromethane

D)

vinyl alcohol

View Answer
131) Natural rubber is

A)

butadiene

B)

isoprene

C)

neoprene

D)

None of these

View Answer
132) Monomer of polythene is

A)

ethylene

B)

propylene

C)

vinyl chloride

D)

None of these

View Answer
133) Bond order of \[{{N}_{2}}\] molecule is

A)

3

B)

2

C)

1

D)

0

View Answer
134) Which of the following is a proper match? \[\frac{{{r}^{+}}}{{{r}^{-}}}\] Shape \[0.115-0.225\] (i) Triangular \[0.225-0.414\] (ii) Tetrahedral \[0.414-0.732\] (iii) Cubic \[0.732-1\] (iv) Octahedral

A)

\[A-i,B-ii,C-iv,D-iii\]

B)

\[A-iii,B-ii,C-iv,D-i\]

C)

\[A-i,B-iii,C-i,D-iv\]

D)

\[A-ii,B-iv,C-i,D-iii\]

View Answer
135) The correct order of acidity of following acids is \[C{{H}_{3}}COOH,HCOOH,Cl-C{{H}_{2}}COOH\]

A)

B)

C)

D)

None of the above

View Answer
136) \[C{{O}_{2}}\] gas obtained by the combustion of \[12\text{ }mL\]butane gas is

A)

\[\text{3 }mL\]

B)

\[12\text{ }mL\]

C)

\[\text{24 }mL\]

D)

\[\text{48 }mL\]

View Answer
137) Calomel is

A)

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

B)

\[Hg+H{{g}_{2}}C{{l}_{2}}\]

C)

D)

View Answer
138) In an adiabatic process which of the following is true?

A)

\[q=+W\]

B)

\[q=0\]

C)

\[\Delta E=q\]

D)

\[p\Delta V=0\]

View Answer
139)  The number of paired electrons in \[Xe\] atom of \[Xe{{F}_{2}}\] is

A)

\[3\]

B)

\[5\]

C)

\[4\]

D)

\[2\]

View Answer
140) Hydrolysis of \[Xe{{F}_{6}}\] gives

A)

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

B)

\[Xe{{O}_{6}}\]

C)

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

D)

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

View Answer
141) Zwitter ion is

A)

Dipolar ion

B)

Ion formed from amino acid

C)

Internal salt

D)

All of the above

View Answer
142) IUPAC name of \[[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]is

A)

Diamine dichloro platinum (II)

B)

Amine, chloro platinum (III)

C)

Chloro diamine platinum (II)

D)

None of the above

View Answer
143) Nylon obtained by the condensation of adipic acid with hexamethylene diamine

A)

Nylon \[6,6\]

B)

Nylon \[7,6\]

C)

Nylon \[6,5\]

D)

Nylon \[9,7\]

View Answer
144) Equation log \[\frac{{{K}_{2}}}{{{K}_{1}}}=\frac{\Delta H}{2.303R}\left[ \frac{{{T}_{2}}-{{T}_{1}}}{{{T}_{1}}.{{T}_{2}}} \right],\] n is

A)

van der Waals' equation

B)

Kirchoff's equation

C)

Gas equation

D)

Van?t Hoff equation

View Answer
145) Which of the following is a colligative property?

A)

Surface tension

B)

Viscosity

C)

Osmotic pressure

D)

Vapour pressure

View Answer
146) Number of a and p emitted in the reaction \[_{92}{{U}^{238}}{{\xrightarrow{{}}}_{82}}P{{b}^{206}}\]are

A)

\[6\alpha \]and \[8\beta \]

B)

\[8\alpha \] and \[6\beta \]

C)

\[6\alpha \] and \[4\beta \]

D)

\[4\beta \] and \[6\beta \]

View Answer
147) A chemical reaction is catalysed by 'X' therefore, 'X'

A)

Increases the activation energy

B)

Does not affect the equilibrium constant of the reaction

C)

Decreases the enthalpy of the reaction

D)

Decreases the velocity constant of the reaction

View Answer
148) The half-life of a radioactive isotope is\[3\text{ }h\]. If the initial mass of the isotope were \[256\text{ }g,\] the mass of it remaining undecayed after \[18\text{ }h\]would be

A)

\[8.0\text{ }g\]

B)

\[4.0\text{ }g\]

C)

\[12.0\text{ }g\]

D)

\[16.0\text{ }g\]

View Answer
149) According to MOT which of the following is correct for potassium hexa cyano ferrate (III)?

A)

It is a octahedral complex

B)

\[{{t}_{2g}}\] Orbital contains the \[{{e}^{-}}\] of metal

C)

For iron, overlapping between empty orbitals and ligand orbitals takes place

D)

All of the above

View Answer
150) Radioactive hydrogen is

A)

Tritium

B)

Deuterium

C)

Ortho hydrogen

D)

Para hydrogen

View Answer
151) Percentage of oxygen in phenol is

A)

\[17.02\]

B)

\[15.2\]

C)

\[16\]

D)

\[15\]

View Answer
152) Which of the following differs in BAN?

A)

\[[Co{{(N{{H}_{3}})}_{6}}]C{{l}_{3}}\]

B)

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

C)

\[{{K}_{2}}[ZnC{{l}_{4}}]\]

D)

\[{{K}_{2}}[Hg{{I}_{4}}]\]

View Answer
153) Which of the following complex neutralises three molecules of\[AgN{{O}_{3}}\]?

A)

\[[Co{{(N{{H}_{3}})}_{6}}]C{{l}_{3}}\]

B)

\[[Co{{(N{{H}_{3}})}_{5}}Cl]C{{l}_{2}}\]

C)

\[[Co{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]Cl\]

D)

\[[Co{{(N{{H}_{3}})}_{3}}C{{l}_{3}}]\]

View Answer
154) \[Zn\underset{C=1}{\mathop{|Z{{n}^{2+}}|}}\,\underset{C=1}{\mathop{|C{{u}^{2+}}|}}\,Cu\] If the standard reduction potential of zinc electrode and copper half-cell is \[-0.76\text{ }V\]and \[0.34\text{ }V\]respectively then the emf will be

A)

\[1.1V\]

B)

\[1.4V\]

C)

\[1.34V\]

D)

None of these

View Answer
155) Which of the following does not show optical isomerisation?

A)

\[[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]

B)

\[{{[Co{{(oX)}_{3}}]}^{3-}}\]

C)

\[{{[Co{{(en)}_{3}}]}^{3+}}\]

D)

\[{{[Cr{{(diph)}_{3}}]}^{3+}}\]

View Answer
156) Solubility product of pure \[PbC{{l}_{2}}\] will be

A)

\[{{K}_{sp}}={{S}^{2}}\]

B)

\[{{K}_{sp}}=4{{S}^{3}}\]

C)

\[{{K}_{sp}}=108{{S}^{5}}\]

D)

\[{{K}_{sp}}=S\]

View Answer
157) The expression for velocity constant for the second order reaction is

A)

\[k=\frac{2.303}{t}{{\log }_{10}}\frac{a}{a-x}\]

B)

\[k=\frac{1}{t}\frac{x}{a[a-x]}\]

C)

\[k=\frac{1}{t}\frac{x}{{{a}^{2}}{{[a-x]}^{2}}}\]

D)

None of the above

View Answer
158) The unit of rate constant for second order reaction is

A)

\[{{s}^{-1}}\]

B)

\[mol/{{L}^{-1}}\]

C)

\[L\,\,mo{{l}^{-1}}{{s}^{-1}}\]

D)

\[{{L}^{2}}mo{{l}^{-2}}s\]

View Answer
159) Which of the following, on heating with ammonia gives urotropin?

A)

Formaldehyde

B)

Acetaldehyde

C)

Acetone

D)

Benzaldehyde

View Answer
160) Which of the following statement is correct?

A)

Basic nature increases on increasing pH

B)

Basic nature decreases on increasing pH

C)

Acidic nature increases on increasing pH

D)

None of the above

View Answer
161) For the redox reaction \[Zn(s)+C{{u}^{2+}}(0.1M)\xrightarrow{{}}Z{{n}^{2+}}(1M)+Cu(s)\] taking place in a cell, \[E_{cell}^{o}\] is \[1.10V.\] \[{{E}_{cell}}\] for the cell will be \[\left( 2.303\frac{RT}{F}=0.0591 \right)\]

A)

\[2.14V\]

B)

\[1.80V\]

C)

\[0.82V\]

D)

\[1.07V\]

View Answer
162) \[{{C}_{6}}{{H}_{6}}+C{{l}_{2}}\xrightarrow{Sunlight}\] product

A)

BHC

B)

Chloro benzene

C)

Dichloro benzene

D)

None of the above

View Answer
163) The required condition for an ideal solution is

A)

\[\Delta {{H}_{mix}}=0\]

B)

\[\Delta {{V}_{mix}}\ne 0\]

C)

\[{{p}_{A}}\ne p_{A}^{o}{{X}_{A}}\]

D)

\[\Delta {{H}_{mix}}>1\]

View Answer
164) Interionic distance for \[CsCl\]crystal is

A)

\[a\]

B)

\[a/2\]

C)

\[\frac{\sqrt{3}}{4}a\]

D)

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

View Answer
165) How many space lattices are obtained from the different crystal systems?

A)

\[7\]

B)

\[14\]

C)

\[32\]

D)

\[230\]

View Answer
166) Which of the following occurs at anode?

A)

Reduction

B)

Oxidation

C)

Both [a] and [b]

D)

None of these

View Answer
167) Parke's process is used for the extraction of

A)

Iron

B)

sodium

C)

Silver

D)

zinc

View Answer
168) The common method of extraction of metals from oxide ores is

A)

Reduction with carbon

B)

Reduction with hydrogen

C)

Reduction with aluminium

D)

Electrolytic method

View Answer
169) The transition metals mostly are

A)

Diamagnetic

B)

Paramagnetic

C)

Neither diamagnetic nor paramagnetic

D)

Both diamagnetic and paramagnetic

View Answer
170) Which of the following is an electron deficient compound?

A)

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

B)

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

C)

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

D)

\[CC{{l}_{4}}\]

View Answer
171) Aniline reacts with chloroform in the presence of \[KOH\] to give

A)

Phenol

B)

Chlorobenzene

C)

Phenyl cyanide

D)

Phenyl isocyanide

View Answer
172) Which one of the following is conjugate acid of water in the reaction? \[{{H}_{2}}S{{O}_{4}}+{{H}_{2}}O\rightleftharpoons {{H}_{3}}{{O}^{+}}+HSO_{4}^{-}\]

A)

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

B)

\[{{H}_{3}}{{O}^{+}}\]

C)

\[SO_{4}^{2-}\]

D)

\[HSO_{4}^{-}\]

View Answer
173) The product of \[{{H}^{+}}\] and \[O{{H}^{-}}\] of water will be

A)

\[{{K}_{w}}={{10}^{-12}}\]

B)

\[{{K}_{w}}={{10}^{-14}}\]

C)

\[{{K}_{w}}={{10}^{-11}}\]

D)

\[{{K}_{w}}={{10}^{-10}}\]

View Answer
174) When methyl cyanide is hydrolysed in presence of alkali, the product is

A)

Acetamide

B)

methane

C)

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

D)

acetic acid

View Answer
175) For \[NaCl,\]the \[{{K}_{sp}}=36\,\,mo{{l}^{2}}{{L}^{-2}},\] the molar concentration of it will be

A)

\[\frac{1}{36}M\]

B)

\[\frac{1}{16}M\]

C)

\[36\text{ }M\]

D)

\[6M\]

View Answer
176) Pour solutions A,B,C,D has glucose \[0.5\text{ }M,\] \[NaCl\text{ }0.1\text{ }M,\]\[BaC{{l}_{2}}\text{ }0.5\text{ }M\] and \[MgC{{l}_{2}}\text{ }0.1\text{ }M,\]then which of the following will have highest osmotic pressure?

A)

Glucose

B)

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

C)

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

D)

\[NaCl\]

View Answer
177) The highest boiling point is of

A)

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

B)

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

C)

\[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\]

D)

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

View Answer
178) For an ionic crystal of the general formula AX and coordination number is 6, the value of radius ratio will be

A)

greater than \[0.73\]

B)

in between \[0.73\] and \[0.41\]

C)

in between \[0.41\] and \[0.22\]

D)

less than \[0.22\]

View Answer
179) Which of the following can be used to convert \[_{7}^{14}N\]into \[_{8}^{17}O\]?

A)

Deutron

B)

Proton

C)

\[\alpha \]-particle

D)

Neutron

View Answer
180) \[{{N}_{2}}{{O}_{4}}\rightleftharpoons 2N{{O}_{2}}-Q\] The unit of \[{{K}_{p}}\] for the given reaction is

A)

atmosphere

B)

\[atmospher{{e}^{2}}\]

C)

\[atmospher{{e}^{-1}}\]

D)

None of these

View Answer
181) Number   of   ions   for   the   complex \[[Co{{(N{{H}_{3}})}_{4}}Cl]C{{l}_{2}}\]shown by the conductivity measurement, is

A)

\[2\]

B)

\[4\]

C)

\[3\]

D)

\[1\]

View Answer
182) Rusting on iron needs

A)

dry air

B)

air and water

C)

distilled water and carbon dioxide

D)

oxygen and carbon dioxide

View Answer
183) First ionization potential is highest for

A)

\[Na\]

B)

\[Mg\]

C)

\[Al\]

D)

None of these

View Answer
184) Which compound is not a lipid?

A)

Lecithin

B)

Lysine

C)

Cerebroside

D)

Cephalin

View Answer
185) Which one of the following notations shows product incorrectly?

A)

\[_{96}^{242}Cm(\alpha ,2n)_{97}^{243}Bk\]

B)

\[_{5}^{10}B(\alpha ,n)_{7}^{13}N\]

C)

\[_{7}^{14}N(n,p)_{6}^{14}C\]

D)

\[_{14}^{28}Si(d,n)_{15}^{29}P\]

View Answer
186) In the equilibrium reaction \[2HI(g)\rightleftharpoons {{H}_{2}}+{{I}_{2}}\]which of the following expressions is true?

A)

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

B)

\[{{K}_{c}}=2{{K}_{p}}\]

C)

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

D)

\[{{K}_{c}}={{K}_{p}}{{(RT)}^{2}}\]

View Answer
187) For a reaction of the type \[A+B\to \] products, it is observed that doubling the concentration of A causes the reaction rate to be four times as great, but doubling the amount of B does not affect the rate. The rate equation is

A)

\[Rate=k[A][B]\]

B)

\[Rate=k{{[A]}^{2}}\]

C)

\[Rate=k{{[A]}^{2}}[B]\]

D)

\[Rate=k{{[A]}^{2}}{{[B]}^{2}}\]

View Answer
188) In the following, the element with the highest electro positivity is

A)

copper

B)

cesium

C)

barium

D)

chromium

View Answer
189) The reaction \[C{{H}_{2}}=C{{H}_{2}}+{{H}_{2}}\xrightarrow[{{250}^{o}}-{{300}^{o}}C]{Ni}C{{H}_{3}}-C{{H}_{3}}\] is called

A)

Wurtz reaction

B)

Kolbe's reaction

C)

Sabatier-Senderens reaction

D)

Carbylamine reaction

View Answer
190) Unit of first order rate constant is

A)

\[mol\,\,L\,s\]

B)

\[mo{{l}^{-1}}\,\,{{L}^{-1}}\,{{s}^{-1}}\]

C)

\[mol\,\,{{L}^{-1}}\,{{s}^{-1}}\]

D)

\[{{s}^{-1}},{{\min }^{-1}}etc.\]

View Answer
191) Which of the following describes the shape of orbital?

A)

Principal quantum number

B)

Azimuthal quantum number

C)

Magnetic quantum number

D)

Spin quantum number

View Answer
192) The formula of a phosphate of a metal M, is \[MP{{O}_{4}}\]. The formula of its nitrate will be

A)

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

B)

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

C)

\[M{{(N{{O}_{3}})}_{3}}\]

D)

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

View Answer
193) The d-block element consists mostly of

A)

monovalent metals

B)

all non-metals

C)

elements which generally form stoichiometric metal oxide

D)

many metals with catalytic properties

View Answer
194) A mixture containing \[C{{u}^{2+}}\] and \[N{{i}^{2+}}\] can be separated for identification by

A)

passing \[{{H}_{2}}S\] in acid medium

B)

passing \[{{H}_{2}}S\] in alkaline medium

C)

passing \[{{H}_{2}}S\] in neutral medium

D)

passing \[{{H}_{2}}S\] in dry mixture

View Answer
195) Strongest Breasted base among the following anions is

A)

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

B)

\[ClO_{2}^{-}\]

C)

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

D)

\[ClO_{4}^{-}\]

View Answer
196) Which one of the following is a good conductor of electricity?

A)

Diamond

B)

Graphite

C)

Silicon

D)

Amorphous carbon

View Answer
197) Which one of the following is an example of non-typical transition elements?

A)

\[Li,K,Na\]

B)

\[Be,Al,Pb\]

C)

\[Zn,Cd,Hg\]

D)

\[Ba,Ca,Sr\]

View Answer
198) Which of the following has zero dipole moment?

A)

\[ClF\]

B)

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

C)

\[Si{{F}_{4}}\]

D)

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

View Answer
199) In galvanic cell, the salt bridge is used to

A)

complete the circuit

B)

reduce the electric resistance in Ae cell

C)

separate cathode from anode

D)

carry salts for the chemical reaction

View Answer
200) Reduction of methyl isocyanide gives

A)

ethylamine

B)

methylamine

C)

dimethylamine

D)

trimethylamine

View Answer
201) Polar bodies are formed during

A)

oviposition

B)

oogenesis

C)

fertilization

D)

sperm to genesis

View Answer
202) Node of Ranvier can be seen in

A)

right atrium

B)

dendrites

C)

cell body

D)

axon

View Answer
203) Mutation is

A)

sudden change in morphology

B)

change in character

C)

change in heritable characters

D)

None of the above

View Answer
204) Amniocentesis is a technique used for

A)

estimating amino acid content in the amino

B)

measuring size of the amino

C)

determining sex of the foetus

D)

determining position of the foetus

View Answer
205) The science of ageing is called

A)

Chronology

B)

Odontology

C)

Gynaecology

D)

Gerontology

View Answer
206) Which is correct about human brain?

A)

It is covered by two membranes

B)

There is no blood-brain barrier

C)

Largest number of cranial nerves originate form cerebral hemisphere

D)

Cerebral cortex is highly developed

View Answer
207) The placenta of human beings belong to the category

A)

epitheliochorial

B)

syndesmochorial

C)

endotheliochorial

D)

haemochorial

View Answer
208) Which of the blood group does not contain any antigen ?

A)

Blood group O

B)

Blood group A

C)

Blood group B

D)

Blood group AB

View Answer
209) AIDS related complex (ARC) is a disease, which leads to fever, swollen lymph nodes, night sweats, loss in weight etc present

A)

sever form of AIDS

B)

initial form of AIDS

C)

single stranded DNA

D)

double stranded DNA

View Answer
210) External ears are characteristics of

A)

mammals

B)

reptiles

C)

amphibians

D)

pisces

View Answer
211) Pace-maker of the heart is situated

A)

in wall of right atrium

B)

on the inter auricular septum

C)

on inter ventricular septum

D)

in wall of left atrium

View Answer
212) Electric organs are found in

A)

sharks

B)

porpoises

C)

goldfish

D)

rays

View Answer
213) Acromion process is found in rabbit in

A)

pectoral girdle

B)

femur

C)

vertebral column

D)

pelvic girdle

View Answer
214) Mammalian lungs contain a large number of minute alveoli (air sacs). This is to allow

A)

more space for increasing the total volume of inspired air

B)

more surface area for diffusion of gases

C)

more spongy texture for keeping lungs in proper shape

D)

more nerve supply to keep the organs working more efficiently

View Answer
215) Name of nervous band connecting cerebral hemispheres in rabbit is

A)

corpus callosum

B)

corpus albicans

C)

corpus striatum

D)

corpus spongiosum

View Answer
216) Lateral ventricles are found in

A)

brain

B)

heart

C)

thyroid

D)

Both [a] and [b]

View Answer
217) Biological name of insect (vector) carrying the plague

A)

Xenopey cheopis

B)

Anopheles mosquito

C)

Bacillus pestis

D)

Pediculus humanus

View Answer
218) Which cell types secretes \[\text{HCl}\] in stomach?

A)

Chief cells

B)

Oxyntic cells

C)

Ppneth cells

D)

Goblet cells

View Answer
219) Nissl's granules are found in

A)

mast cells

B)

osteoblasts

C)

chondro blasts

D)

neurons

View Answer
220) What for the ascending limb of loop of Henie is permeable?

A)

Glucose

B)

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

C)

Na

D)

Water

View Answer
221) Parathormone deficiency in man causes

A)

hypercalcemia

B)

hypocalcemia

C)

goiter

D)

All of these

View Answer
222) The eggs of placental mammals are described as

A)

microlecithal

B)

telolecithal

C)

centrolecithal

D)

alecithal

View Answer
223) If a haemophilic man marries a normal lady, the of fsprings will be

A)

all haemophilic

B)

all normal

C)

haemophilic daughters

D)

haemophilic sons

View Answer
224) "Origin of life' was written by

A)

\[\text{S}\,\,\text{I}\] Miller

B)

\[\text{A}\,\,\text{I}\] Oparin

C)

de Vries

D)

Charles Darwin

View Answer
225) Improvement of human race by improving the environment is called

A)

Euphenics

B)

Eugenics

C)

Euthenics

D)

Ecology

View Answer
226) The carrier of virus causing human yellow fever is

A)

mosquito

B)

bug

C)

louse

D)

beetle

View Answer
227) Heart-beat originates from

A)

pace-maker

B)

cardiac muscles

C)

left atrium

D)

right ventricle

View Answer
228) Smoking addiction is harmful because it produces polycyclic aromatic hydrocarbons which cause

A)

reduction in oxygen transport

B)

increase in blood pressure

C)

cancer

D)

retardation of growth of foetus

View Answer
229) Main function of cerebellum is

A)

balancing

B)

to see

C)

to hear

D)

remembering

View Answer
230) The centre for sense of smell in brain is

A)

cerebellum

B)

cerebrum

C)

olfactory lobes

D)

midbrain

View Answer
231) The nerve related with diaphragm is

A)

vagus

B)

phrenic

C)

trigeminal

D)

glossopharyngeal

View Answer
232) The disease caused by deficiency of parathormone is

A)

cretinism

B)

tetany

C)

hypercalcemia

D)

myxedema

View Answer
233) In human females at the time of birth there are two million ova; how many of them normally reach maturity in the course of normal reproductive life?

A)

500

B)

1,000

C)

2,000

D)

5,000

View Answer
234) Which of the following -belongs to phylum Arthropoda ?

A)

Starfish

B)

Goldfish

C)

Silver fish

D)

Cuttlefish

View Answer
235) During replication of a bacterial chromosome DNA synthesis starts from a replication origin site and

A)

RNA primers are involved

B)

is facilitated by telomerase

C)

moves in one direction of the site

D)

moves in bi-directional way

View Answer
236) Ear drum is known as

A)

tympanic membrane

B)

tensor tympani

C)

scala tympani

D)

scala vestibule

View Answer
237) Silkworm is a

A)

fly

B)

worm

C)

moth

D)

beetle

View Answer
238) A normal woman, whose father was colourblind is married to a normal man. The sons would be

A)

75% colourblind

B)

50% colourblind

C)

all normal

D)

All colourblind

View Answer
239) In contrast to annelids the platyhelminths show

A)

radial symmetry

B)

presence of pseudocoel

C)

bilateral symmetry

D)

absence of body cavity

View Answer
240) Which of the following unicellular organism has a macronucleus for trophic function and one or more micronuclei for reproduction?

A)

Euglena

B)

Amoeba

C)

Paramecium

D)

Trypanosoma

View Answer
241) In human, muscular coordination is controlled by

A)

bone marrow

B)

medula oblongata

C)

cerebellum

D)

cerebrum

View Answer
242) Increase in human race by using rules of Genetics is known as

A)

Eugenics

B)

Euphenics

C)

Euthenics

D)

Dysgenics

View Answer
243) What kind of evidence suggested that man is more closely related with chimpanzee than with other Hominoid apes?

A)

Evidence from DNA from sex chromosomes only

B)

Comparison of chromosomes morphologically only

C)

Evidence from fossil remains and the fossil mitochondrial DNA alone

D)

Evidence from DNA extracted from sex chromosomes, autosomes and mitochondria

View Answer
244) Presence of gills in the tadpole of frog indicates that

A)

fishes were amphibious in the past

B)

fishes evolved from frog-like ancestors

C)

frogs will have gills in future

D)

frogs evolved from gilled ancestors

View Answer
245) Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution?

A)

Development of transgenic animals

B)

Production of 'Dolly* the sheep by cloning

C)

Prevalence of pesticide resistant insects

D)

Development of organs from stem cells for organ transplantation

View Answer
246) de Vries gave his mutation theory on organic evolution, while working on

A)

Althea rosea

B)

Drosophila melanogaster

C)

Oenothera lamarckiana

D)

Pisum sativum

View Answer
247) There are two opposing views about origin of modem man. According to one view. Homo erectus in Asia were the ancestors of Modern man. A study of variations of DNA however suggested African origin of Modern man. What kind of observation on DNA variation could suggest this?

A)

Greater variation in Africa than in Asia

B)

Variation only in Asia and no variation in Africa

C)

Greater variation in Asia than in Africa

D)

Similar variation in Africa and Asia

View Answer
248) Mast cells of connective tissue contain

A)

vasopressin and relaxin

B)

heparin and histamine

C)

heparin and calcitonin

D)

serotonin and melanin

View Answer
249) In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed would drive

A)

into the cell

B)

and out of the cell

C)

into the cell

D)

out of the cell

View Answer
250) Which of the following substances, if introduce the blood stream, would cause coagulation at the site of its introduction?

A)

Fibrinogen

B)

Prothrombin

C)

Heparin

D)

Thromboplastin

View Answer
251) Duodenum has characteristic Brunner's glands, which secrete two hormones called

A)

kinase, estrogen

B)

secretin, cholecystokinin

C)

prolactin, parathormone

D)

estradiol, progesterone

View Answer
252) Which one of the following is the correct matching of a vitamin, its nature and ist deficiency disease?

A)

Vitamin-A-Fat soluble-Nightblindness

B)

Vitamin-K-Fat-soluble-Beri-beri

C)

Vitamin-A-Fat-soluble-Beri-beri

D)

Vitamin-K-Water-soluble-pellagra

View Answer
253) The richest sources of vitaminare

A)

goat's liver and Spirulina

B)

chocolate and green gram

C)

rice and hen's egg

D)

carrot and chicken's breast

View Answer
254) Epithelial cells of the intestine involved in food absorption have on their surface

A)

pinocytic vesicles

B)

phagocytic vesicles

C)

zymogen granules

D)

microvilli

View Answer
255) A patient is generally advised to specially. consume more meat, lentils, milk and eggs in diet only when he suffers from

A)

kwashiorkor

B)

rickets

C)

anaemia

D)

scurvy

View Answer
256) A person is undergoing prolonged fasting. His urine will be found to contain abnormal quantities of

A)

fats

B)

ketones

C)

amino acids

D)

glucose

View Answer
257) Which group of three of the following five statements (1-5) contains all three correct statements regarding beri-beri? 1. A crippling disease prevalent among the native population of sub-Sahara Africa. 2. A deficiency disease caused by lack of thiamine (vitamin-Bi). 3. A nutritional disorder in infants and young children when the diet is persistently deficient in essential protein. 4. Occurs in those countries where the staple diet is polished rice. 5. The symptoms are pain from neuritis, paralysis, muscle wasting, progressive oedema, mental deterioration and finally heart failure.

A)

1,2 and 4

B)

2, 3 and 5

C)

1,3 and 5

D)

2, 4 and S

View Answer
258) When concentration in blood increases, breathing becomes

A)

shallower and slow

B)

there is no effect on breathing

C)

slow and deep

D)

faster and deeper

View Answer
259) Blood analysis of a patient reveals an unusually high quantity of car boxy hemoglobin content. Which of the following conclusions is most likely to be correct? The patient has been inhaling polluted air containing unusually high content of

A)

carbon disulphide

B)

chloroform

C)

carbon dioxide

D)

carbon monoxide

View Answer
260) During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed?

A)

Conversion of pyruvic add to acetyl Co-A

B)

Electron transport chain

C)

Glycolysis

D)

Krebs' cycle

View Answer
261) to the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be

A)

B

B)

0

C)

AB

D)

A

View Answer
262) You are required to draw blood from a 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
263) The cardiac pace-maker in a patient fails to function normally. The doctors find that an artificial pace-maker is to be grafted in him. It is likely that it will be grafted at the site of

A)

atrioventricular bundle

B)

Purkinje system

C)

sinuatrial node

D)

atrioventricular node

View Answer
264) Uricotelism is found in

A)

mammals and birds

B)

fishes and fresh water protozoans

C)

birds, reptiles and insects

D)

frogs and toads

View Answer
265) A terrestrial animal must be able to

A)

excrete large amount of water in urine

B)

conserve water

C)

actively pump salts out through the skin

D)

excrete large amount of salts in urine

View Answer
266) In ornithine cycle, which of the following wastes are removed from the blood?

A)

Urea and urine

B)

Ammonia and urea

C)

and ammonia

D)

and urea

View Answer
267) The net pressure gradient that causes the fluid to filter out of the glomeruli into the capsule is

A)

20mmHg

B)

75 mm Hg

C)

30mmHg

D)

50 mm Hg

View Answer
268) ATP ase enzyme needed for muscle contraction is located in

A)

acrinin

B)

troponin

C)

myosin

D)

actin

View Answer
269) An acromian process is characteristically found in the

A)

pelvic girdle of mammals

B)

skull of frog

C)

pectoral girdle of mammals

D)

sperm of mammals

View Answer
270) Which of the following pairs is correctly matched?

A)

Cartilaginous     - Skull bones joint

B)

Hinge joint                         - Between vertebrae

C)

Fibrous joint      - Between phalanges

D)

Gliding joint                       - Between zygapophyses of the successive vertebrae

View Answer
271) Injury to vagus nerve in humans is not likely to affect

A)

tongue movements

B)

gastrointestinal movements

C)

pancreatic secretion

D)

cardiac movements

View Answer
272) In a man, abducens nerve is injured. Which one of the following functions will be affected?

A)

Movement of the eye ball

B)

Swallowing

C)

Movement of the tongue

D)

Movement of the neck

View Answer
273) One of the examples of the action of the autonomous nervous system is

A)

knee-jerk response

B)

pupillary reflex

C)

swallowing of food

D)

peristalsis of the intestine

View Answer
274) Parkinson's disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement, control and make use of neurotransmitter

A)

acetylcholine

B)

nor-epinephrine

C)

dopamine

D)

GABA

View Answer
275) Chemically hormones are

A)

biogenic amines only

B)

proteins, steroids and biogenic amines

C)

proteins only

D)

steroids only

View Answer
276) Which one of the following pairs correctly matches a hormone with a diseases resulting from its deficiency?

A)

Luteinizing - Failure of ovulation hormone

B)

Insulin - Diabetes insipidus

C)

Thyroxine - Tetany

D)

Parathyroid - Diabetes mellitus hormone

View Answer
277) Which of the following hormones is not a secretion product of human placenta?

A)

Human chorionic gonadotropin

B)

Prolactin

C)

Estrogen

D)

Progesterone

View Answer
278) Which one of the following hormones is a modified amino acid?

A)

Epinephrine

B)

Progesterone

C)

Prostaglandin

D)

Estrogen

View Answer
279) Ovulation in the human female normally takes place during the menstrual cycle

A)

at the mid secretory phase

B)

just before the end of the secretory phase

C)

at the beginning of the proliferative phase

D)

at the end of the proliferative phase

View Answer
280) If mammalian ovum fails to get fertilized, which one of the following is unlikely?

A)

Corpus luteum will disintegrate

B)

Estrogen secretion further decreases

C)

Primary follicle starts developing

D)

Progesterone secretion rapidly declines

View Answer
281) Grey crescent is the area

A)

at the point of entry of sperm into ovum

B)

just opposite to the site of entry of sperm into ovum

C)

at the animal pole

D)

at the vegetal pole

View Answer
282) The maximum growth rate occurs in

A)

stationary phase

B)

senescent phase

C)

lag phase

D)

exponential phase

View Answer
283) In a mutational event, when adenine is replaced by guanine, it is a case of

A)

frameshift mutation

B)

transcription

C)

transition

D)

transversion

View Answer
284) DNA fingerprinting refers to

A)

molecular analysis of profiles of DNA samples

B)

analysis of DNA samples using imprinting devices

C)

techniques used for molecular analysis of different specimens of DNA

D)

techniques used for identification of fingerprints of individuals

View Answer
285) 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
286) During transcription, if the nucleotide sequence of the DNA strand that is being coded as ATACG. Then the nucleotide sequence in the mRNA would be

A)

TATGC

B)

TCTGG

C)

UAUGC

D)

UATGC

View Answer
287) Extra nuclear inheritance is a consequence of presence of genes in

A)

mitochondria and chloroplasts

B)

endoplasmic reticulum and mitochondria

C)

ribosomes and chloroplast

D)

lysosomes and ribosomes

View Answer
288) A man and a woman, who do not show any apparent signs of a certain inherited disease have seven children (2 daughters and 5 sons). Three of the sons suffer from the given disease but none of the daughters are affected. Which of the following mode of inheritance do you suggest for this disease?

A)

Autosomal dominant

B)

Sex-linked dominant

C)

Sex-limited recessive

D)

Sex-linked recessive

View Answer
289) Telomerase is an enzyme, which is a

A)

repetitive DNA

B)

RNA

C)

simple protein

D)

rib nucleoprotein

View Answer
290) During   transcription   holoenzyme   RNA polymerase binds to a DNA sequence and the DNA assumes a saddle like structure at that point. What is that sequence called?

A)

CAAT box

B)

GGTT box

C)

AAAT box

D)

TATA box

View Answer
291) Minerals deposition in bones and teeth is due to vitamin

A)

D

B)

A

C)

C

D)

E

View Answer
292) BHC and DDT belong to which class of pesticides?

A)

Organophosphates

B)

Organochlorines

C)

Carbonates

D)

Triazines

View Answer
293) Production of a human protein in bacteria by genetic engineering is possible because

A)

bacterial cell can carry out the RNA splicing reactions

B)

the human chromosome can replicate in bacterial cell

C)

the mechanism of gene regulation is identicp.1 in humans and bacteria

D)

the genetic code is universal

View Answer
294) From the following statements select the wrong one

A)

millepedes have two pairs of appendages in each segment of the body

B)

prawn has two pairs of antennae

C)

animals belonging to phylum-Porifera are exclusively marine

D)

nematocysts are characteristic of the phylum-Cnidaria

View Answer
295) Barophilic prokaryotes

A)

grow slowly in highly alkaline frozen lakes at high altitudes

B)

occur in water containing high concentrations of barium hydroxide

C)

grow and multiply in very deep marine sediments

D)

readily grown and divides in sea water enriched in any soluble salt of barium

View Answer
296) Cancer cells are more easily damaged by radiation than normal cells because they are

A)

starved of mutation

B)

undergoing rapid division

C)

different in structure

D)

non-dividing

View Answer
297) Which of the following in not true for a species?

A)

Members of a species can interbreed

B)

Variations occur among members of a species

C)

Each species is reproductively isolated from every other species

D)

Gene flow does not occur between the populations of a species

View Answer
298) Biodiversity act of India was passed by the Parliament in the year

A)

1996

B)

1992

C)

2002

D)

2000

View Answer
299) Which one of the following characters is not typical of the class-Mammalia?

A)

Seven cervical vertebrae

B)

The codont dentition

C)

Ten pairs of cranial nerves

D)

Alveolar lungs

View Answer
300) Cutaneous glands are

A)

gastric glands

B)

sebaceous glands

C)

thyroid glands

D)

thymus glands

View Answer
301) Fruit of coconut is

A)

drupe

B)

berry

C)

nut

D)

None of these

View Answer
302) Edible part of mango is

A)

epicarp

B)

endocarp

C)

mesocarp

D)

None of the above

View Answer
303) System of classification proposed by Linnaeus

A)

botanical system of classification

B)

sexual system of classification

C)

natural system of classification

D)

None of the above

View Answer
304) Highest unit of classification

A)

phylum

B)

kingdom

C)

class

D)

series

View Answer
305) Angiosperms differs from gymnosperms because

A)

embryo is present in it

B)

tissue is present in it

C)

vessel is present in its xylem

D)

None of the above

View Answer
306) Common bread mould is

A)

yeast

B)

Mucor

C)

bacteria

D)

virus

View Answer
307) Which one of the following organisms may respire in the absence of oxygen?

A)

Azotobacter

B)

Clostridium

C)

Rhizobium

D)

Lactobadllus

View Answer
308) Micorrhiza is a

A)

parasitic relation between fungus and algae

B)

symbiotic relation between fungus and algae

C)

symbiotic relation between fungus and roots

D)

parasitic relation between fungus and roots

View Answer
309) Earliest settlers on barren land and rocks are

A)

mosses

B)

lichens

C)

ferns

D)

None of these

View Answer
310) Number of neck canal cells is archegonium of Funaria

A)

1

B)

3

C)

5

D)

6-10

View Answer
311) Nostoc is known to perform

A)

only photosynthesis

B)

photosynthesis and nitrogen fix am simultaneously

C)

only nitrogen fixation

D)

either photosynthesis or nitrogen fixatior a time

View Answer
312) In Funaria, haploid structure is

A)

capsule

B)

protonema

C)

collumella

D)

None of these

View Answer
313) Terpentine is obtained from

A)

pteridophyte

B)

gymnosperm wood

C)

bacteria

D)

angiosperm flower

View Answer
314) Tunica corpus theory was proposed by

A)

Schmidt

B)

Hanstein

C)

Nageli

D)

Hoffmeister

View Answer
315) Companion cells are associated with

A)

sieve tubes

B)

xylem

C)

collenchyma

D)

cambium

View Answer
316) Wood is the common name of

A)

phloem

B)

vascular bundles

C)

cambium

D)

secondary xylem

View Answer
317) Embryo is found in

A)

Ulothrix

B)

Spirogyra

C)

Funaria

D)

Chlorella

View Answer
318) Hydathode are found in

A)

leaf

B)

stem

C)

flower

D)

root

View Answer
319) Enzymes are basically

A)

vitamins

B)

fat

C)

protein

D)

carbon

View Answer
320) Which of the following is a C4-plant

A)

sugarcane

B)

mango

C)

apple

D)

tomato

View Answer
321) The first compound formed in photosynthesis of C3 plants is

A)

phosphoglyceric acid

B)

starch

C)

pyruvic acid

D)

ribulose diphosphate

View Answer
322) Ferredoxin is found in

A)

\[\text{PS-I}\]

B)

\[\text{PS-II}\]

C)

Hill reaction

D)

\[{{\text{P}}_{680}}\]

View Answer
323) Correct percentage of \[C{{O}_{2}}\] in atmosphere is

A)

0.03%

B)

0.3%

C)

1%

D)

1.1%

View Answer
324) The cotton thread fibres are

A)

fibres taken out from stem

B)

epidermal hair of seed

C)

epidermal hair of fruits

D)

fibres taken out from roots

View Answer
325) Which of the following is a test cross?

A)

\[Tt\times Tt\]

B)

\[TT\times Tt\]

C)

\[TT\times tt\]

D)

\[tt\times Tt\]

View Answer
326) Gibberellins were first discovered in fungal genus

A)

Mucor

B)

Khizopus

C)

Agaricus

D)

Fusarium

View Answer
327) Stem of Opuntia is

A)

phyllode

B)

phylloclade

C)

cladode

D)

bulbils

View Answer
328) Which of the following is a biofertilizer?

A)

Funaria

B)

Fern

C)

Anabaena

D)

Fungus

View Answer
329) RQ of succulents is

A)

1

B)

4

C)

0

D)

\[\infty \]

View Answer
330) Chemical added fro preservation of fruit juice is

A)

potassium meta-bisulphite

B)

potassium permanganate

C)

potassium chloride

D)

potassium chlorate

View Answer
331) The drug to control high blood pressure is obtained from

A)

Rauwolfia serpentine

B)

Atropa belladonna

C)

Colchicum autumnale

D)

Digitalis purpurea

View Answer
332) The botanical name of 'jute' is

A)

Linum eusitaissimum

B)

Corchorus capsularis

C)

Hibiscus sabdariffa

D)

Crotalaria juncea

View Answer
333) The genetic material in viruses are

A)

in some viruses both DNA and RNA

B)

only RNA

C)

only DNA

D)

Both [b] and [c]

View Answer
334) Food poisoning is caused by the infection of

A)

Bacillus megatherium

B)

Salmonella typhi

C)

E. coli

D)

Clostridium botulinum

View Answer
335) Cyanobacteria are included in

A)

Monera

B)

Protista

C)

Migae

D)

Bryophyta

View Answer
336) Isotopes used in photosynthesis are

A)

\[{{\text{C}}_{\text{11}}}\text{and }{{\text{P}}^{\text{32}}}\]

B)

\[{{\text{C}}^{\text{15}}}\text{and }{{\text{P}}^{\text{32}}}\]

C)

\[{{\text{C}}^{\text{16}}}\text{and }{{\text{N}}^{\text{15}}}\]

D)

\[{{\text{C}}^{\text{14}}}\text{and}\,{{\text{O}}^{\text{18}}}\]

View Answer
337) Mendel observed that certain characters did assort independently. Later researchers found it to be due to

A)

amitosis

B)

linkage of characters

C)

dominance of one trait over the other

D)

crossing-over

View Answer
338) Fertility of soil reduces from

A)

crop rotation

B)

intensive cultivation

C)

mixed cropping

D)

nitrogen fixing bacteria

View Answer
339) Stomata can open at night also in

A)

xerophyte

B)

gametophyte

C)

hydrophyte

D)

None of these

View Answer
340) Stomata open during day because the guard cells have

A)

outer walls thin

B)

kidney shape

C)

chlorophyll

D)

large nuclei

View Answer
341) \[{{\text{P}}_{\text{680}}}\] is related with

A)

\[\text{PS-I}\]

B)

\[\text{PS-II}\]

C)

Hill reaction

D)

None of these

View Answer
342) Organisms without any specific shape are

A)

mycoplasma

B)

bacteria

C)

viruses

D)

cyanobacteria

View Answer
343) In an aquatic environment, microscopic animals                and plants are collectively known as

A)

commensals

B)

herbivores

C)

fauna and flora

D)

planktons

View Answer
344) Cell theory was proposed by

A)

Schleiden and Schwann

B)

Watson and Crick

C)

Darwin and Wallace

D)

Mendel and Morgan

View Answer
345) The tobacco mosaic virus was crystallized for the first time by

A)

W M Stanley

B)

Louis Pasteur

C)

Edward Jenner

D)

Andre Lwoff

View Answer
346) The main function of Golgi complex is

A)

translocation

B)

phosphorylation

C)

glyco-oxidation

D)

fermentation

View Answer
347) 5th June is

A)

World Environment Day

B)

World AIDS Day

C)

World Women Day

D)

World Polio Day

View Answer
348) Four daugher cells formed after meiosis are

A)

genetically similar

B)

genetically different

C)

anucleate

D)

multinucleate

View Answer
349) Which one of the following nutrients serve as microelements for plant growth?

A)

Manganese, copper, calcium

B)

Sodium, potassium, boron

C)

Sodium, nickel, chlorine

D)

Copper, molybdenum, zinc

View Answer
350) Mo is related with

A)

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

B)

flower induction

C)

chromosome contraction

D)

carbon collection

View Answer
351) Which one of the following elements is present in chlorophylls?

A)

Manganese

B)

Magnesium

C)

Copper

D)

Iron

View Answer
352) Cellulose is

A)

monosaccharide

B)

disaccharide

C)

polysaccharide

D)

None of these

View Answer
353) Pulses yielding main family of plants

A)

Poaceae (Gramineae)

B)

Cucurbitaceae

C)

Liliaceae

D)

Papilionaceae

View Answer
354) Constituents of plasma membrane are

A)

Protein-lipid-protein

B)

Lipid-protein-lipid

C)

Protein-phosphorus

D)

Lipid-sugar-protein

View Answer
355) Lichens are

A)

parasitic relation between fungus and algae

B)

symbiotic relation between fungus and algae

C)

parasitic relation between fungus and root

D)

symbiotic relation between fungus and roots

View Answer
356) NADP is reduced into \[NADP{{H}_{2}}\]in

A)

\[\text{PS-I}\]

B)

\[\text{PS-II}\]

C)

Calvin cycle

D)

Non-cyclic phosphorylation

View Answer
357) Hill's reaction is completed in

A)

light

B)

dark

C)

Both [a] and [b]

D)

None of these

View Answer
358) Carbon cycle includes

A)

producer, consumer, decomposer

B)

decomposer, consumer, producer

C)

producer, decomposer, consumer

D)

consumer, producer, decomposer

View Answer
359) The cycling of elements in an ecosystem is called

A)

chemical cycle

B)

biogeochemical cycle

C)

geological cycle

D)

geochemical cycle

View Answer
360) Transcription of DNA is aided by

A)

RNA polymerase

B)

DNA polymerase

C)

exonuclease

D)

recombinase

View Answer
361) In which of the following protonema stage is found ?

A)

Riccia

B)

Funaria

C)

Selaginella

D)

Pinus

View Answer
362) When a seed germinates, while fruit is still attached to plant

A)

vivipary

B)

scarification

C)

germination

D)

None of these

View Answer
363) Emasculation is only achieved by

A)

removal of stigma

B)

removal of sepals and petals

C)

removal of anthers

D)

removal of gynoecium

View Answer
364) If the base sequence in DNA is 5' AAAA 3' thee the base sequence in mRNA will be

A)

5'UUUU3'

B)

3'UUUU 5'

C)

5'AAAA 3'

D)

3TTTT 5'

View Answer
365) Which of the following is a stop codon

A)

AUG. GUG, UUU

B)

UGA, UAG, UAA

C)

UUU, UAC, CUC

D)

CUC, UAC, UAA

View Answer
366) Which of the following is a viral STD disease ?

A)

AIDS

B)

Cholera

C)

Syphilis

D)

Gonnorhoea

View Answer
367) Correct order of molecular weight is

A)

DNA < rRNA < tRNA

B)

DNA < mRNA < rRNA

C)

rRNA < mRNA < DNA

D)

tRNA < DNA < mRNA

View Answer
368) Which of the following is found in fem?

A)

Eustele

B)

Atactostele

C)

Dictyostele

D)

None of these

View Answer
369) Characteristics of Cyanophyieae is

A)

phycocyanin

B)

chlorophyll-\[b\]

C)

phycoerythrin

D)

chlorophyll-\[a\]

View Answer
370) Which is closet to fungi in Protista?

A)

Hypophyte

B)

True slime would

C)

Actinomycetes

D)

Ascomycetes

View Answer
371) Pith and cortex belong to

A)

epidermis

B)

ground tissue

C)

vascular tissue

D)

bundle sheath

View Answer
372) Velamen of orchids are formed from

A)

phelloderm

B)

phellogen

C)

dermatogen

D)

cortex

View Answer
373) Total yield in one Krebs' cycle

A)

\[3\text{ }FAD{{H}_{2,}}~2\text{ }NAD{{H}_{2,}}1\text{ }ATP\]

B)

\[2\text{ }FAD{{H}_{2,}}~2\text{ }NA{{D}_{2,}}~~~2\text{ }ATP\]

C)

\[2\text{ }NAD{{H}_{2,}}~1\text{ }FAD{{H}_{2,}}2\text{ }ATP\]

D)

\[3\text{ }NAD{{H}_{2,}}~1\text{ }FAD{{H}_{2,}}1\text{ }ATP\]

View Answer
374) Edaphic factor is related with

A)

soil

B)

water

C)

air

D)

None of these

View Answer
375) The type of inflorescence in Tulsi

A)

cyathium

B)

hypanthodium

C)

verticellaster

D)

None of these

View Answer
376) The pyramid of energy in a forest ecosystem is

A)

always upright

B)

always inverted

C)

Both [a] and [b]

D)

None of the above

View Answer
377) The sites for protein synthesis in plants are

A)

chloroplasts

B)

ribosomes

C)

pyrenoids

D)

mitochondria

View Answer
378) Castor oil is yielded from which of the following?

A)

Brassica campestris

B)

Sesamum indicum

C)

Ricinus communis

D)

Cocos nucifera

View Answer
379) The process involved in the RNA formation on the DNA template is

A)

translation

B)

transduction

C)

transcription

D)

transformation

View Answer
380) The genes are responsible for growth and differentiation in an organism through regulation of

A)

translocation

B)

transformation

C)

transduction and translation

D)

translation and transcription

View Answer
381) DNA is present in

A)

nucleus only

B)

mitochondrion only

C)

chloroplast only

D)

All of these

View Answer
382) Nitrifying bacteria are those which can convert

A)

atmospheric nitrogen into ammonia

B)

ammonia into nitrites

C)

nitrites into nitrates

D)

nitrates into ammonia

View Answer
383) Which one of the following bacteria has potential for nitrogen fixation?

A)

Nitrosomonas

B)

Nitrobacter

C)

Nitrosococcus

D)

Rhizobium

View Answer
384) The importance of ecosystem lies in

A)

flow of energy

B)

cycling of materials

C)

Both [a] and [b]

D)

None of the above

View Answer
385) Which one of the following is a renewable source of energy?

A)

Petroleum

B)

Coal

C)

Nuclear fuel

D)

Trees

View Answer
386) The number of primary producers within a specified area would be maximum in

A)

grassland ecosystem

B)

forest ecosystem

C)

pond ecosystem

D)

deserts

View Answer
387) Nepenthes is a

A)

primary producer

B)

consumer

C)

Both [a] and [b]

D)

None of the above

View Answer
388) The smallest organisms, which cause disease among plants are

A)

viruses

B)

fungi

C)

mycoplasma

D)

bacteria

View Answer
389) How many ATP will be produced during the production of 1 molecule of acetyl Co-A from 1 molecule of pyruvic acid?

A)

3 ATP

B)

5 ATP

C)

8 ATP

D)

38 ATP

View Answer
390) End osulphon is a

A)

herbicide

B)

weedicide

C)

rodenticide

D)

pesticide

View Answer
391) In which kind of study is banding done?

A)

Creation of new species

B)

Production of disease resistent variety

C)

Mapping of chromosomes

D)

Artificial pollination

View Answer
392) Nobel Prize for the concept of jumping genes was awarded to

A)

H G Khorana

B)

Barbara McClintock

C)

Kornberg

D)

Watson

View Answer
393) Phytochrome was discovered by

A)

W Went

B)

Gamer and Allard

C)

F F Blackman

D)

R Hill

View Answer
394) Lateral meristem is responsible for which of the following

A)

Growth in length

B)

Growth in thickness

C)

Growth in parenchyma

D)

Growth in cortex

View Answer
395) The presence of auxins in a solution could be tested by

A)

Avena sativa stem tip test

B)

carbon tetrachloride test

C)

iodine test

D)

defoliation test

View Answer
396) Enzymes are sensitive to

A)

cold

B)

cell wall

C)

heat

D)

pressure

View Answer
397) A normal angiosperm embyo sac at the final stage of development has

A)

4 nuclei

B)

8 nuclei

C)

3 nuclei

D)

7 nuclei

View Answer
398) Coir of commerce is obtained from which part   of the coconut?

A)

Epicarp

B)

Mesocarp

C)

Endocarp

D)

Seed coat

View Answer
399) Diphtheria is caused by

A)

viruses

B)

eukaryotes

C)

mycoplasma

D)

bacteria

View Answer
400) Reserpine drug is obtained from

A)

Rauwolfia serpentine

B)

Withania somnifera

C)

Atropa belladonna

D)

Papaver sominiferum

View Answer