question_answer 1) A rod of length L and mass m is kept vertically on the ground. Its potential energy is
A)
\[mgL\]
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B)
\[mg\frac{L}{2}\]
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C)
\[mg\frac{L}{3}\]
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D)
\[mg\frac{L}{4}\]
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question_answer 2) A satellite is put in an orbit at height \[h=R\]. What is change in potential energy?
A)
\[mgR\]
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B)
\[\frac{mgR}{2}\]
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C)
\[2mgR\]
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D)
\[\frac{3}{2}mgR\]
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question_answer 3) A body is projected at an angle \[{{45}^{o}}\] with horizontal. If escape velocity when projected vertically up is 11.2 km/s, what is its new escape velocity when projected at the given angle?
A)
\[\frac{11.2}{\sqrt{2}}km/s\]
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B)
\[11.2\sqrt{2}km/s\]
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C)
\[11.2\,km/s\]
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D)
None of these
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question_answer 4) If total energy of satellite is E, what is its potential energy?
A)
\[2E\]
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B)
\[-2E\]
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C)
\[E\]
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D)
\[-E\]
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question_answer 5) If radius of earth is reduced
A)
tide duration is reduced
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B)
earth rotates slower
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C)
time period of earth decreases
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D)
duration of day increases
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question_answer 6) Zener diode acts as
A)
voltage regulator in reverse biasing
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B)
voltage regulator in forward biasing
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C)
current regulator in reverse biasing
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D)
current regualtor in forward biasing
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question_answer 7) What is \[\frac{e}{m}\] ratio of electron?
A)
\[2.76\times {{10}^{10}}\]
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B)
\[2.76\times {{10}^{11}}\]
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C)
\[1.76\times {{10}^{10}}\]
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D)
\[1.76\times {{10}^{11}}\]
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question_answer 8) What is charge on 90 kg of electrons?
A)
\[1.58\times {{10}^{13}}\]
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B)
\[2.23\times {{10}^{12}}\]
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C)
\[2.53\times {{10}^{12}}\]
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D)
None of these
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question_answer 9) At what temperature iron becomes paramagnetic?
A)
\[{{200}^{o}}C\]
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B)
\[{{400}^{o}}C\]
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C)
\[{{600}^{o}}C\]
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D)
\[{{800}^{o}}C\]
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question_answer 10) Sparkling of diamond is because of
A)
total internal reflection
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B)
refraction
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C)
diffraction
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D)
scattering
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question_answer 11) Pressure variation in a mechanical wave depends upon as
A)
\[\propto \] intensity
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B)
independent of intensity
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C)
\[\propto \frac{\text{1}}{\text{intensity}}\]
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D)
None of the above
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question_answer 12) Earths magnetic field is
A)
\[{{10}^{-4}}T\]
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B)
\[{{10}^{-5}}T\]
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C)
\[{{10}^{-6}}T\]
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D)
None of these
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question_answer 13) If charge and distance between two charges are reduced to half. Force between them
A)
remains same
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B)
increases four times
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C)
reduce four times
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D)
None of the above
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question_answer 14) Consider a vehicle going on a horizontal road towards east. Neglect any force by the air. The frictional force on the vehicle by the road
A)
is zero if the vehicle is moving with a uniform velocity
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B)
is towards east if the vehicle is accelerating
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C)
must be towards east
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D)
must be towards west
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question_answer 15) Masses m and M on pulley move 0.6 m in 4 s. What is ratio of \[\frac{m}{M}\]?
A)
\[\frac{55}{57}\]
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B)
\[\frac{113}{117}\]
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C)
\[\frac{57}{55}\]
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D)
\[\frac{397}{403}\]
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question_answer 16) Three rods of equal length of thermal conductivity K, 2K and 3K are symmetrically joined. If temperature of ends are \[{{0}^{o}}C,\,{{50}^{o}}C\]and \[{{100}^{o}}C\]respectively, what is the temperature of the junction?
A)
\[20{{\,}^{o}}C\]
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B)
\[\frac{100}{3}{}^{o}C\]
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C)
\[\frac{200}{3}{}^{o}C\]
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D)
None of these
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question_answer 17) Frequency of cyclotron does not depend upon
A)
charge
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B)
mass
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C)
Velocity
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D)
\[\frac{q}{m}\]
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question_answer 18) Number of beats between A and B is 5 and between B and C are 3. Beat frequency between A and C may be
A)
1
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B)
2
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C)
8
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D)
None of these
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question_answer 19) A gas at one atmosphere and having volum 100mL is mixed with another gas of equal moles at 0.5atm and having volume 50mL in flask of one litre. What is their final pressure?
A)
0.5atm
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B)
1atm
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C)
0.75atm
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D)
0.125atm
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question_answer 20) A body cools from \[{{80}^{o}}C\] to \[{{64}^{o}}C\] in 5 min and same body cools from \[{{80}^{o}}C\] to \[{{52}^{o}}C\] in 10 min, what is the temperature of the surrounding?
A)
\[{{24}^{o}}C\]
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B)
\[{{28}^{o}}C\]
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C)
\[{{22}^{o}}C\]
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D)
\[{{25}^{o}}C\]
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question_answer 21) Sky waves are reflected by
A)
statosphere
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B)
mesosphere
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C)
ionosphere
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D)
None of these
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question_answer 22) What is size of gold nuclei?
A)
\[3{{R}_{0}}\]
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B)
\[4{{R}_{0}}\]
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C)
\[5{{R}_{0}}\]
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D)
\[5.8{{R}_{0}}\]
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question_answer 23) In L-C-R resonant circuit what is the phase angle \[\phi \]?
A)
\[{{90}^{o}}\]
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B)
\[{{180}^{o}}\]
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C)
\[{{0}^{o}}\]
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D)
\[{{60}^{o}}\]
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question_answer 24) In R-C circuit \[\omega =100\,\,rad/s,\text{ }R=100\,\,\Omega \],\[\text{C}=20\,\,\mu F\] what is impedence?
A)
\[510\,\,\Omega \]
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B)
\[200\,\,\Omega \]
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C)
\[250\,\,\Omega \]
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D)
\[300\,\,\Omega \]
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question_answer 25) A body is moving forward and backward Change in frequency observed by the body of a source is 2%. What is velocity of the body? (speed of sound is 300 m/s)
A)
6 m/s
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B)
2 m/s
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C)
2.5 m/s
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D)
3 m/s
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question_answer 26) A body is projected horizontally with velocity 196 m/s from height 400 m. What is the time to reach the ground?
A)
5 s
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B)
9 s
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C)
15 s
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D)
20 s
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question_answer 27) Two spheres of unequal mass but same radius are released on inclined plane. They rolls down with slipping. Which one will reach the ground first?
A)
Lighter sphere
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B)
Heavier sphere
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C)
Both will reach at the same time
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D)
None of the above
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question_answer 28) A cylinder is rolling down a inclined plane of inclination \[{{60}^{o}}\]. What is its acceleration?
A)
\[g/\sqrt{3}\]
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B)
\[g/\sqrt{3}\]
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C)
\[\sqrt{\frac{2g}{3}}\]
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D)
None of these
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question_answer 29) Lead is
A)
diamagnetic
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B)
paramagnetic
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C)
ferromagnetic
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D)
None of these
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question_answer 30) The magnetic moment of atomic neon is
A)
zero
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B)
\[\mu B/2\]
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C)
\[\mu B\]
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D)
\[3\mu B/2\]
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question_answer 31) In a potentiometer, the null point is received at 7th wire. If now we have to change the null point at the 9th wire, what should we do?
A)
Attach resistance in series with battery
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B)
Increse resistance in main circuit
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C)
Decrease resistance in main circuit
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D)
Decrease applied emf
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question_answer 32) Water falls from height 100 m. Temperature of water
A)
increases
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B)
decreases
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C)
remains same
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D)
None of these
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question_answer 33) Two identical concentric rings each of mass m and radius R are placed perpendicularly. What is the moment of inertia about axis of one of the rings?
A)
\[\frac{3}{2}M{{R}^{2}}\]
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B)
\[2M{{R}^{2}}\]
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C)
\[3M{{R}^{2}}\]
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D)
\[\frac{1}{4}M{{R}^{2}}\]
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question_answer 34) A motor of power 60 W draws current 5 A from a source of 15 V. What is loss of power?
A)
SOW
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B)
25 W
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C)
20 W
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D)
15 W
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question_answer 35) An electron and proton are placed at distance 4.3 nm. What is dipole moment (C-m)?
A)
\[3.44\times {{10}^{-28}}\]
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B)
\[2\times {{10}^{-28}}\]
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C)
\[6.88\times {{10}^{-28}}\]
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D)
None of these
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question_answer 36)
What is current \[I.\]
A)
6A
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B)
5A
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C)
7 A
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D)
8 A
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question_answer 37) Police is chasing the thief 50 m ahead. In 10 s distance between them reduces by 6 m. What is distance between them in 25 s?
A)
10m
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B)
25m
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C)
35m
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D)
20m
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question_answer 38) A body of mass 10 kg initially at rest acquires velocity 10 m/s. What is the work done?
A)
-500 J
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B)
500 J
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C)
50 J
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D)
-50 J
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question_answer 39) A projectile is projected at an angle \[{{60}^{o}}\] with horizontal with speed 10 m/s. The minimum radius of curvature of trajectory described by die projectile is
A)
2.25 m
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B)
2 m
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C)
10 m
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D)
None of these
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question_answer 40) What is nature of light and sound waves?
A)
Light is transverse and sound is longitudinal
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B)
Light is longitudinal and sound is transverse
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C)
Both are transverse
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D)
Both are longitudinal
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question_answer 41) If the colour code of carbon resistor is as follows, then give the value of its resistance in\[\text{k}\Omega \]. Colour of I strip - yellow Colour of II strip - blue Colour of III strip - orange Colour of IV strip - gold
A)
\[46\pm 5%\]
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B)
\[0.46\pm 5%\]
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C)
\[46\pm 10%\]
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D)
\[0.46\pm 10%\]
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question_answer 42) Self-inductance of solenoid is proportional to
A)
\[\frac{NA}{l}\]
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B)
\[\frac{N{{A}^{2}}}{l}\]
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C)
\[\frac{A}{l}\]
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D)
\[\frac{{{N}^{2}}A}{l}\]
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question_answer 43) A body is rolling down an inclined plane. If KE of rotation is 40% of KE in translatory state, then the body is a
A)
ring
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B)
cylinder
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C)
hollow ball
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D)
solid ball
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question_answer 44) Consider the following equation of Bernoullis theorem \[p+\frac{1}{2}\rho {{V}^{2}}+\rho gh=k\] (Constant) The dimensions of k/p are same as that of which of the following?
A)
Thrus
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B)
Pressure
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C)
Angle
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D)
Viscosity
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question_answer 45) Resistance of tungsten wire at \[{{150}^{o}}C\] is \[133\Omega .\]. Its resistance temperature coefficient is \[{{0045}^{o}}/C\]. The resistance of the wire at \[500{}^\circ C\] will be
A)
\[180\,\Omega \]
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B)
\[225\,\Omega \]
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C)
\[258\,\Omega \]
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D)
\[317\,\Omega \]
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question_answer 46) In a radioactive decay process, the negatively charged emitted B-particles are
A)
the electrons present inside the nucleus
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B)
the electrons produced as a result of the decay of neutrons inside the nucleus
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C)
the electrons produced as a result of collisions between atoms
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D)
the electrons orbiting around the nucleus
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question_answer 47) If an electron jumps from 1st orbit to 3rd orbit, then it will
A)
absorb energy
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B)
release energy
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C)
no gain of energy
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D)
None of these
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question_answer 48) Activity of radioactive element decreased to one-third of original activity \[{{R}_{o}}\] in 9 yr. After further 9 yr, its activity will be
A)
\[{{R}_{o}}\]
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B)
\[\frac{2}{3}{{R}_{o}}\]
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C)
\[\frac{{{R}_{o}}}{9}\]
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D)
\[\frac{{{R}_{o}}}{6}\]
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question_answer 49) Which of the following four fundamental forces has shortest range?
A)
Nuclear
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B)
Gravitational
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C)
Electromagnetic
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D)
Weak force
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question_answer 50) The angle of minimum deviation for a prism is \[{{40}^{o}}\] and the angle of the prism is \[{{60}^{o}}\]. The angle of incidence in this position will be
A)
\[{{30}^{o}}\]
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B)
\[{{60}^{o}}\]
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C)
\[{{50}^{o}}\]
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D)
\[{{100}^{o}}\]
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question_answer 51)
Identify B in the following reaction
A)
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B)
done
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C)
done
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D)
None of these
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question_answer 52) Which of the following is chiral?
A)
\[Cl-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}\]
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B)
\[C{{H}_{3}}-C{{H}_{2}}-\underset{\begin{smallmatrix} | \\ Cl \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{2}}-C{{H}_{3}}\]
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C)
\[Cl-CH=CH-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}\]
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D)
\[H-\underset{\begin{smallmatrix} | \\ Cl \end{smallmatrix}}{\mathop{C}}\,=C=CH-C{{H}_{2}}-C{{H}_{3}}\]
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question_answer 53) In the given compound which of the following hydrogens is most acidic? \[\underset{(a)}{\mathop{C{{H}_{3}}}}\,-\underset{(b)}{\mathop{C}}\,{{H}_{2}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-\underset{(C)}{\mathop{C{{H}_{3}}}}\,\]
A)
Only [a]
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B)
Only [b]
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C)
Only [c]
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D)
Both [b] and [c]
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question_answer 54) The following solids are formed by X, Q and Z.\[X{{Y}_{2}},\,\,{{X}_{2}}Z,\,\,QZ\]. Then the formula of the compound formed by Q and Y is
A)
QY
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B)
\[{{Q}_{2}}{{Y}_{3}}\]
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C)
\[Q{{Y}_{4}}\]
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D)
\[Q{{Y}_{3}}\]
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question_answer 55) In the following complex compound\[{{[Co{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]}^{+}}\], Co and \[Cl\] are collinear. Which of the following structures is possible?
A)
linkage
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B)
trans
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C)
ci5
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D)
None of these
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question_answer 56)
A)
done
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B)
done
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C)
done
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D)
None of these
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question_answer 57) Which of the following is false for tetrahedral complexes?
A)
Low spin
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B)
High spin
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C)
d-d transition
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D)
Coloured
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question_answer 58) In the following reaction \[NH_{4}^{+}+BiN\xrightarrow{{}}N{{H}_{3}}+B{{i}^{3+}}\] \[NH_{4}^{+}\] is acting as an
A)
oxidising agent
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B)
acid
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C)
base
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D)
catalyst
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question_answer 59) Strongest Lewis acid among the following is
A)
\[N{{F}_{3}}\]
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B)
\[PC{{l}_{3}}\]
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C)
\[SnC{{l}_{4}}\]
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D)
\[PbC{{l}_{2}}\]
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question_answer 60) \[NaH\], when dissolved in water, produces
A)
acidic medium
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B)
basic medium
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C)
neutral medium
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D)
Cannot be predicted
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question_answer 61) In a closed packed structure
A)
tetrahedral voids are bigger than octahedral
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B)
tetrahedral voids are smaller than octahedral
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C)
tetrahedral voids are equal in size as octahedral
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D)
None of the above
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question_answer 62) An element with configuration\[1{{s}^{2}},2{{s}^{2}},2{{p}^{6}},3{{s}^{2}}3{{p}^{5}}\] will form a compound of highest ionic character with the element having configuration
A)
\[1{{s}^{2}},2{{s}^{2}},2{{p}^{6}}\]
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B)
\[[Ar]\,4{{s}^{1}},3{{d}^{10}}\]
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C)
\[[Ar]\,4{{s}^{1}}\]
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D)
\[1{{s}^{2}},\,2{{s}^{1}}\]
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question_answer 63) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}COOH\xrightarrow{{}}\] \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}-\overset{\begin{smallmatrix} N{{H}_{2}} \\ | \end{smallmatrix}}{\mathop{C}}\,H-COOH\] the reagents used in the conversion are
A)
(i) \[PB{{r}_{3}}/\](ii) \[N{{H}_{3}}\]
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B)
(i) red P, \[B{{r}_{2}}/\](ii) \[N{{H}_{3}}\] (excess)
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C)
(i) \[PB{{r}_{3}},NaCN/\] (ii) \[LiAl{{H}_{4}}\]
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D)
None of the above
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question_answer 64) Empirical formula of compound having molar mass 58 is \[{{C}_{2}}{{H}_{5}}\]. Number of structural isomers possible, are
A)
1
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B)
2
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C)
3
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D)
4
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question_answer 65) Most stable carbocation among the following is
A)
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B)
done
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C)
done
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D)
All are equally
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question_answer 66) Which of the following has highest ionization energy?
A)
\[{{K}^{+}}\]
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B)
\[C{{l}^{-}}\]
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C)
Ar
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D)
\[C{{s}^{+}}\]
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question_answer 67)
the type of reaction is
A)
electrophilic substitution
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B)
nucleophilic substitution
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C)
free radical substitution
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D)
None of the above
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question_answer 68) Which of the following is true at equilibrium?
A)
\[\Delta G=0\]
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B)
\[\Delta H=T\Delta S\]
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C)
\[\Delta G=\Delta H+T\Delta S\]
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D)
Both [a] and [b]
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question_answer 69) Dichlorobenzoic acid \[\xrightarrow{Mononitration}\]Product (only one). The structure of reactant can be
A)
done
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B)
done
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C)
done
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D)
done
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question_answer 70) In the equilibrium \[2N{{H}_{3}}\rightleftarrows {{N}_{2}}+3{{H}_{2}},6\] moles of \[N{{H}_{3}}\] is taken in 10 L flask. If concentration of \[{{N}_{2}}\] at equilibrium is \[x\], then concentration of \[N{{H}_{3}}\] at equilibrium is
A)
\[0.6\,-x\]
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B)
\[0.6\,-2x\]
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C)
\[0.6\,-\frac{x}{2}\]
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D)
None is correct
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question_answer 71) Teflon is repeating unit of
A)
\[-C{{F}_{2}}-C{{F}_{2}}-\]
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B)
\[C{{F}_{2}}=C{{F}_{2}}\]
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C)
\[-(C{{H}_{2}}-C{{H}_{2}}){{-}_{n}}\]
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D)
done
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question_answer 72) The number of \[\pi \]-bonds in the following compound \[{{O}_{2}}N-C\equiv -N{{O}_{2}}\], is
A)
2
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B)
3
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C)
4
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D)
1
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question_answer 73) Most reactive compound towards electrophilic substitution is
A)
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B)
done
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C)
done
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D)
None of these
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question_answer 74) Which of the following is true representation of lattice energy?
A)
\[N{{a}^{+}}(s)+\frac{1}{2}C{{l}_{2}}(g)\xrightarrow{{}}NaCl(s)\]
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B)
\[N{{a}^{+}}(s)+C{{l}^{-}}(g)\xrightarrow{{}}NaCl(s)\]
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C)
\[N{{a}^{+}}(g)+C{{l}^{-}}(g)\xrightarrow{{}}NaCl(s)\]
done
clear
D)
\[N{{a}^{+}}(s)+Cl(s)\xrightarrow{{}}NaCl(s)\]
done
clear
View Answer play_arrow
question_answer 75)
Arrange the following acids in decreasing order of acidic strength \[\underset{I}{\mathop{C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-COOH}}\,\] \[\underset{II}{\mathop{C{{H}_{3}}C{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}OH}}\,\] \[\underset{\text{IV}}{\mathop{C{{H}_{3}}-C{{H}_{2}}-C\equiv CH}}\,\]
A)
\[I>II>III>IV\]
done
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B)
\[III>IV>II>I\]
done
clear
C)
\[I>III>IV>II\]
done
clear
D)
\[I>II>II>IV\]
done
clear
View Answer play_arrow
question_answer 76) The best condition for heterogeneous catalysis is
A)
adsorption
done
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B)
absorption
done
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C)
diffusion
done
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D)
occlusion
done
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question_answer 77) Functionality of protein depends on
A)
its shape and structure
done
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B)
pH of medium
done
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C)
temperature
done
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D)
All of the above
done
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View Answer play_arrow
question_answer 78) In acidic medium, \[CrO_{4}^{2-}\] changes to
A)
\[C{{r}_{2}}O_{7}^{2-}\]
done
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B)
\[C{{r}^{3+}}\]
done
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C)
\[Cr\,(IV)\]
done
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D)
\[C{{r}_{2}}{{O}_{3}}\]
done
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View Answer play_arrow
question_answer 79) \[F{{e}^{2+}}\xrightarrow{{}}F{{e}^{3+}}+{{e}^{-}}\]\[MnO_{4}^{-}+5{{e}^{-}}\xrightarrow{{}}M{{n}^{2+}}\]the ratio of stoichiometric coefficient of \[F{{e}^{2+}}\] and \[MnO_{4}^{-}\]is
A)
1 : 5
done
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B)
5 : 1
done
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C)
2 : 3
done
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D)
6 : 1
done
clear
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question_answer 80)
Which of the following is change in enthalpy?
A)
A
done
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B)
B
done
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C)
C
done
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D)
D
done
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View Answer play_arrow
question_answer 81) \[Zn(s)+C{{l}_{2}}(1\,atm)\xrightarrow{{}}Z{{n}^{2+}}+2C{{l}^{-}}\]. \[E_{cell}^{o}\] of the cell is 2.12 V. To increase E
A)
\[[Z{{n}^{2+}}]\] should be increased
done
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B)
\[[Z{{n}^{2+}}]\] should be decreased
done
clear
C)
\[[C{{l}^{-}}]\] should be decreased
done
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D)
\[{{p}_{C{{l}_{2}}}}\] should be decreased
done
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View Answer play_arrow
question_answer 82) Which of the following substances acts as an oxidising as well as reducing agent?
A)
\[N{{a}_{2}}O\]
done
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B)
\[SnC{{l}_{2}}\]
done
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C)
\[N{{a}_{2}}{{O}_{2}}\]
done
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D)
\[NaN{{O}_{2}}\]
done
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View Answer play_arrow
question_answer 83) Which one of the following ions has the highest value of ionic radius?
A)
\[{{O}^{2-}}\]
done
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B)
\[{{B}^{3+}}\]
done
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C)
\[L{{i}^{+}}\]
done
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D)
\[{{F}^{-}}\]
done
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question_answer 84) Setting of cement is an
A)
exothermic reaction
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B)
endothermic reaction
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C)
neither exothermic nor endothermic
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D)
None of the above
done
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question_answer 85) Which of the following is paramagnetic?
A)
\[N{{i}^{2+}}\]
done
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B)
\[C{{u}^{+}}\]
done
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C)
\[Z{{n}^{2+}}\]
done
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D)
\[S{{c}^{3+}}\]
done
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question_answer 86) Iron is rendered passive by the action of
A)
conc. \[{{H}_{2}}S{{O}_{4}}\]
done
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B)
cone. \[{{H}_{3}}P{{O}_{4}}\]
done
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C)
conc. \[HCl\]
done
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D)
conc. \[HN{{O}_{3}}\]
done
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View Answer play_arrow
question_answer 87) An aqueous solution of \[CoC{{l}_{2}}\] on addition of excess of cone. \[HCl\] turns blue due to the formation of
A)
\[[Co({{H}_{2}}O)]C{{l}_{2}}\]
done
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B)
\[[Co{{({{H}_{2}}O)}_{2}}]C{{l}_{4}}{{]}^{2-}}\]
done
clear
C)
\[{{[CoC{{l}_{4}}]}^{2-}}\]
done
clear
D)
\[[Co{{({{H}_{2}}O)}_{2}}C{{l}_{2}}]\]
done
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View Answer play_arrow
question_answer 88) Which of the following is not present in a nucleotide?
A)
Cytosine
done
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B)
Guanine
done
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C)
Adenine
done
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D)
Tyrosine
done
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question_answer 89) Which of the following is used as an antibiotic?
A)
Ciprofloxacin
done
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B)
Paracetamol
done
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C)
Ibuprofen
done
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D)
Tocopherol
done
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question_answer 90) Benzaldehyde condenses with N,N-Dimethylamline in presence of anhydrous \[ZnC{{l}_{2}}\] to give
A)
Michlers ketone
done
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B)
azo dye
done
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C)
malachite green
done
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D)
buffer yellow
done
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question_answer 91) Which of the following is secondary pollutant?
A)
\[C{{O}_{2}}\]
done
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B)
\[{{N}_{2}}O\]
done
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C)
PAN
done
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D)
\[S{{O}_{2}}\]
done
clear
View Answer play_arrow
question_answer 92) What will be the volume of 12 M solution, if it is equivalent to 240 mL of 18 M solution?
A)
6L
done
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B)
600 L
done
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C)
400L
done
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D)
0.36L
done
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View Answer play_arrow
question_answer 93) The specific rotation of a pure enantiomer is\[+{{10}^{o}}\]. The observed rotation, if it is isolated from a reaction with 30% racemisation and 70% retention, is
A)
\[+{{10}^{o}}\]
done
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B)
\[+{{7}^{o}}\]
done
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C)
\[+{{14}^{o}}\]
done
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D)
\[-{{7}^{o}}\]
done
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View Answer play_arrow
question_answer 94) IUPAC name of the following \[C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{N}}\,-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ {{C}_{2}}{{H}_{5}} \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}\]
A)
3-dimethylamino-3-methyl pentane
done
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B)
3 (N,N-trimethyl)-3-amino pentane
done
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C)
3 N-N-trimethyl pentammine
done
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D)
3-(N,N-dimethyl) amino 3-methyl pentane
done
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View Answer play_arrow
question_answer 95) The equivalent weight of a metal is 9 and vapour density of its chloride is 59.25. The atomic weight of metal is
A)
23.9
done
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B)
27.3
done
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C)
36.3
done
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D)
48.3
done
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View Answer play_arrow
question_answer 96) Splitting of spectral lines under the influence of magnetic field is called
A)
Zeeman effect
done
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B)
Starck effect
done
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C)
Photoelectric effect
done
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D)
None of the above
done
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View Answer play_arrow
question_answer 97) Which of the following molecule has pyramidal shape?
A)
\[PC{{l}_{3}}\]
done
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B)
\[S{{O}_{3}}\]
done
clear
C)
\[CO_{3}^{2-}\]
done
clear
D)
\[NO_{3}^{-}\]
done
clear
View Answer play_arrow
question_answer 98) Equation of Boyles law is
A)
\[\frac{dp}{p}=-\frac{dV}{V}\]
done
clear
B)
\[\frac{dp}{p}=+\frac{dV}{V}\]
done
clear
C)
\[\frac{{{d}^{2}}p}{p}=-\frac{dV}{V}\]
done
clear
D)
\[\frac{{{d}^{2}}p}{p}=+\frac{{{d}^{2}}V}{dT}\]
done
clear
View Answer play_arrow
question_answer 99) An element has half-life 1600 yr. The mass left after 6400 yr will be
A)
1/16
done
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B)
1/12
done
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C)
1/4
done
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D)
1/32
done
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question_answer 100) Boiling point of chloroform was raised by 0.323 K, when 0.5143 g of anthracene was dissolved in 35 g of chloroform. Molecular mass of anthracene is \[({{k}_{f}}for\,CHC{{l}_{3}}=3.9\,K\,kg\,mo{{l}^{-1}})\]
A)
79.42 g/mol
done
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B)
132.32 g/mol
done
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C)
177.42 g/mol
done
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D)
242.32 g/mol
done
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View Answer play_arrow
question_answer 101) Which of the following event occurs during \[{{G}_{1}}\]-phase?
A)
DNA replication
done
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B)
Growth and normal function of cell
done
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C)
Mutation
done
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D)
Fertilization
done
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question_answer 102) The stage during which, cell decides to get specialized
A)
S-phase
done
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B)
M-phase
done
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C)
\[{{G}_{1}}\]-phase
done
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D)
\[{{G}_{2}}\]-phase
done
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View Answer play_arrow
question_answer 103) In which of the following wavelength, photosystem-I is inactive?
A)
780 nm
done
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B)
680 nm
done
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C)
690 nm
done
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D)
550 nm
done
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View Answer play_arrow
question_answer 104) ADH deficiency causes
A)
diabetes insipidus
done
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B)
goitre
done
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C)
tetany
done
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D)
acromegaly
done
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View Answer play_arrow
question_answer 105) Law of limiting factor of photosynthesis was proposed by
A)
von Mayer
done
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B)
Arnon
done
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C)
FF Blackmann
done
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D)
Hill
done
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View Answer play_arrow
question_answer 106) Opening of stomaia is not affected by
A)
\[{{N}_{3}}\]
done
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B)
\[{{K}^{+}}\] ions
done
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C)
Starch
done
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D)
None of these
done
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View Answer play_arrow
question_answer 107) The IV cranial nerve is
A)
oculomotor
done
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B)
trochlear
done
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C)
olfactory
done
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D)
facial
done
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View Answer play_arrow
question_answer 108) Subunits of 80S ribosome are
A)
40S
done
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B)
60S
done
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C)
Both [a] and [b]
done
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D)
None of these
done
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View Answer play_arrow
question_answer 109) The stored food in animals is called
A)
cellulose
done
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B)
starch
done
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C)
glucose
done
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D)
glycogen
done
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View Answer play_arrow
question_answer 110) The cellular respiration first takes place in the
A)
cytoplasm
done
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B)
Golgi bodies
done
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C)
ER
done
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D)
lysosomes
done
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question_answer 111) Which of the following substrate is used in the formation of alcohol?
A)
Sucrose
done
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B)
Glucose
done
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C)
Galactose
done
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D)
Fructose
done
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View Answer play_arrow
question_answer 112) If a person is feeding only on meat, egg and milk then he will suffer from
A)
nightblindness
done
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B)
scurvy
done
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C)
rickets
done
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D)
beri-beri
done
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View Answer play_arrow
question_answer 113) Rubisco stands for
A)
Ribulose bisphosphate carboxylase oxygenase
done
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B)
Ribulose phosphate carboxylase xygenase
done
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C)
Ribulose phosphate carboxylic oxygenase
done
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D)
None of the above
done
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View Answer play_arrow
question_answer 114) Net gain of ATP molecules per hexose during aerobic respiration is
A)
12
done
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B)
18
done
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C)
36
done
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D)
30
done
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View Answer play_arrow
question_answer 115) The term hot dilute soup was used by
A)
Haldane
done
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B)
von Helmont
done
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C)
Redi
done
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D)
Louis Pasteur
done
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View Answer play_arrow
question_answer 116) Which of the following classification is based on some morphological characters?
A)
Artificial
done
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B)
Natural
done
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C)
Phylogenetic
done
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D)
Both [b] and [c]
done
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question_answer 117) Sweet potato and potato are examples of
A)
homologous structure
done
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B)
analogous structure
done
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C)
Both [a] and [b]
done
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D)
None of the above
done
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View Answer play_arrow
question_answer 118) Systema Naturae was written by
A)
Hutchinson
done
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B)
Lamarck
done
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C)
Linnaeus
done
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D)
Bentham and Hooker
done
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question_answer 119) In the origin of life, microspheres are moot primitive protobiont, which have a membrane of
A)
lipid and proteins
done
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B)
lipid
done
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C)
carbohydrates
done
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D)
fats
done
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question_answer 120) Rabies is caused by
A)
virus
done
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B)
bacteria
done
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C)
Protozoa
done
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D)
All of these
done
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question_answer 121) Tuberculosis is caused by
A)
Vibrio cholerae
done
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B)
Mycobacterium
done
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C)
Salmonella typhi
done
clear
D)
None of these
done
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View Answer play_arrow
question_answer 122) Fresh water bony fish survives by
A)
get rid of \[{{H}_{2}}O\] and gain salt
done
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B)
get rid of salt and gain \[{{H}_{2}}O\]
done
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C)
Both [a] and [b]
done
clear
D)
None of the above
done
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View Answer play_arrow
question_answer 123) Nitrification is the process of conversion of
A)
\[N{{H}_{3}}\]
done
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B)
\[N{{O}_{2}}\]
done
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C)
\[N{{O}_{3}}\]
done
clear
D)
All of these
done
clear
View Answer play_arrow
question_answer 124) Which of the following provides nutrition tosperm?
A)
Leydig cells
done
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B)
Scrotum
done
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C)
Sertoli cells
done
clear
D)
Epididymis
done
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View Answer play_arrow
question_answer 125) Oral contraceptive pills function by
A)
fertilization
done
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B)
inhibiting ovulation
done
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C)
reproduction
done
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D)
None of the above
done
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question_answer 126) Sphaerocarpos belongs to
A)
Bryophyta
done
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B)
Pteridophyta
done
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C)
gymnosperm
done
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D)
angiosperm
done
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question_answer 127) Fungi differs from slime moulds by lacking of
A)
flagellated spores
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B)
ascospores
done
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C)
basidiospores
done
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D)
zygospores
done
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question_answer 128) Saprozoic type of feeding habit is found in which of the following animal?
A)
Mosquito
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B)
Scorpion
done
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C)
Spider
done
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D)
Cockroach
done
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question_answer 129) Fungi are classified on the basis of
A)
sexual reproduction
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B)
asexual reproduction
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C)
vegetative reproduction
done
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D)
None of the above
done
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question_answer 130) Wiich one of the following does not belong to kingdom-Monera?
A)
Mycoplasma
done
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B)
Archaebacteria
done
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C)
Slime mould
done
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D)
Eubacteria
done
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question_answer 131) Which one of the following is not a plastid?
A)
Mitoplast
done
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B)
Chromoplast
done
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C)
Chloroplast
done
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D)
Leucoplast
done
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question_answer 132) In retroviruses, RNA dependent DMA Polymerase synthesizes
A)
RNA-DNA
done
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B)
DNA
done
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C)
RNA
done
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D)
None of these
done
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View Answer play_arrow
question_answer 133) What will happen. When glucose is administered orally?
A)
Excretion
done
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B)
Digestion
done
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C)
Circulation
done
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D)
Respiration
done
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View Answer play_arrow
question_answer 134) Agrose is a gel, which is used to separate
A)
carbohydrate
done
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B)
fats
done
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C)
Both [a] and [b]
done
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D)
protein
done
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question_answer 135) The process of reverse transcription was discovered by
A)
Temin and Baltimore
done
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B)
Watson and Crick
done
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C)
Alfred Hershey
done
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D)
None of the aboce
done
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View Answer play_arrow
question_answer 136) Which one of the following animal has pseudocoelome ?
A)
Cockroach
done
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B)
Ancylostoma
done
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C)
Aurelia
done
clear
D)
Fasiola
done
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question_answer 137) The process of joining of amino acids is called
A)
transcription
done
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B)
translation
done
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C)
conjugation
done
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D)
None of these
done
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question_answer 138) Which of the following isotopes is used for finding the fossil having age more than 4500 year?
A)
\[{{U}^{238}}\]
done
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B)
\[{{U}^{235}}\]
done
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C)
\[P{{o}^{235}}\]
done
clear
D)
\[^{12}C\]
done
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question_answer 139) The infective stage of Plasmodium vivax is
A)
sporozoite
done
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B)
gametocyte
done
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C)
trophozoite
done
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D)
cryptozoite
done
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View Answer play_arrow
question_answer 140) Which of the following is obtained from genetic engineering?
A)
Haemoglobin
done
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B)
Glucose
done
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C)
Golden rice
done
clear
D)
None of these
done
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View Answer play_arrow
question_answer 141) H. Which of the following is a test cross?
A)
Ww \[\times \] ww
done
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B)
WW \[\times \] ww
done
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C)
Ww \[\times \] Ww
done
clear
D)
ww \[\times \] ww
done
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View Answer play_arrow
question_answer 142) One gene-one enzyme hypothesis wa propounded by
A)
Beadle and Tatum
done
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B)
Louis Pasteur
done
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C)
J B S Haldane
done
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D)
None of the above
done
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question_answer 143) The glenoid cavity is associated with
A)
scapula
done
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B)
humerus
done
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C)
Both [a] and [b]
done
clear
D)
None of these
done
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View Answer play_arrow
question_answer 144) The nerve fibre in its resting stage is
A)
more permeable to \[{{K}^{+}}\]
done
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B)
semi-permeable to \[{{K}^{+}}\]
done
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C)
less permeable to \[{{K}^{+}}\]
done
clear
D)
All of the above
done
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View Answer play_arrow
question_answer 145) Genes when close together on a chromosomes are known as
A)
linkage
done
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B)
mutation
done
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C)
translation
done
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D)
transcription
done
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question_answer 146) The theory of pangenesis was rejected due to the acceptance of
A)
Spallanzani theory of biogenesis
done
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B)
Richter theory of cosmozoic
done
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C)
Cuvier theory of catastropism
done
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D)
Weismann theory of germplasm
done
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question_answer 147) In human beings, 45 chromosomes/single X/XO abnormality causes
A)
Downs syndrome
done
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B)
Klinefelters syndrome
done
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C)
Turners syndrome
done
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D)
Edwards syndrome
done
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question_answer 148) An evolutionary process, giving rise to new species adapting to new habitats and ways of life is called
A)
adaptive radiation
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B)
adaptation
done
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C)
convergent evolution
done
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D)
microevolution
done
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question_answer 149) The chromosomal arrangement results in
A)
euploidy
done
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B)
aneuploidy
done
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C)
duplication
done
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D)
polyploidy
done
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question_answer 150) One of these is associated with terminator codon?
A)
AGG
done
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B)
UAA
done
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C)
UUA
done
clear
D)
AUG
done
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question_answer 151) The inherent maximum capacity of an organism to reproduce or increase in number is called as
A)
biotic potential
done
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B)
ecosystem
done
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C)
population
done
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D)
ecology
done
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question_answer 152) Which of the following is best suited for co dominance?
A)
Both are recessive
done
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B)
Both are dominance
done
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C)
One is recessive
done
clear
D)
One is dominance
done
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question_answer 153) The substance which is metal ion for the normal functioning of enzyme is called
A)
cofactor
done
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B)
coenzyme
done
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C)
holoenzyme
done
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D)
None of these
done
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question_answer 154) Scala Naturae was written by
A)
Linnaeus
done
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B)
Darwin
done
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C)
Aristotle
done
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D)
Whittaker
done
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question_answer 155) The gene which masks the effect of another gene is called
A)
epistasis
done
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B)
lethal gene
done
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C)
multiple allele
done
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D)
complementary gene
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question_answer 156) In a DNA molecule, the adenine is 15%. Wha will be the percentage of guanine in this DNA?
A)
15%
done
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B)
35%
done
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C)
70%
done
clear
D)
30%
done
clear
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question_answer 157) Which one is used in the production of insulin by genetic engineering?
A)
Eschereria coli
done
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B)
Mycobacterium
done
clear
C)
Both [a] and [b]
done
clear
D)
None of these
done
clear
View Answer play_arrow
question_answer 158) The synthesis of complex molecules from simple molecules was proved by
A)
Arrhenius
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B)
Pasteur
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C)
Stanley Miller
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D)
Redi
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question_answer 159) Which is not correct according to Chargaffs rule?
A)
\[A+T=C+G\]
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B)
\[A+G=C+T\]
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C)
\[\frac{A+G}{C+T}=1\]
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D)
None of these
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question_answer 160) The interaction of species with the environment is called as
A)
community
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B)
environment
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C)
ecosystem
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D)
autecology
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question_answer 161) Which of the following cells are associated with identification of colours in bright light?
A)
Rod cells
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B)
Cone cells
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C)
Both [a] and [b]
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D)
None of these
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question_answer 162) Which of the following defines Hardey Weinbergs law?
A)
\[{{p}^{2}}+\text{ }2pq+\text{ }{{q}^{2}}=\text{ }1\]
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B)
\[{{p}^{2}}+\text{ }2pq+\text{ }{{q}^{2}}=\text{ }1\]
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C)
\[{{p}^{2}}+\text{ }2pq+\text{ }{{q}^{2}}=\text{ }0\]
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D)
\[{{q}^{2}}+\text{ }{{p}^{2}}+\text{ }2pq=\text{ }0\]
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question_answer 163) The size of the clay particle is less than
A)
0.02 mm
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B)
0.002 mm
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C)
0.2 mm
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D)
2.0 mm
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question_answer 164) Photochemical smog pollution does not contain
A)
ozone
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B)
nitrogen dioxide
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C)
carbon dioxide
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D)
PAN
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question_answer 165) . Decrease in the calcium level in blood is caused by
A)
prolactin
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B)
calcitonin
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C)
adrenocorticotropin
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D)
oxytocin
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question_answer 166) Heavier and lighter isotopic form of an element can be separated by the technique of
A)
buoyant density centrifugation
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B)
density gradient centrifugation
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C)
chromatography
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D)
electrophoresis
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question_answer 167) The ozone layer is found in
A)
troposphere
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B)
mesosphere
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C)
stratosphere
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D)
atmosphere
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question_answer 168) The pectoral fins get enlarged in
A)
Exocoetus
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B)
Scoliodon
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C)
Hippocampus
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D)
Coccosreus
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question_answer 169) What is a keystone species ?
A)
A species which adds upto only a small proportion of the total biomass of a community, yet has a huge impact on the communitys organization and survival
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B)
A common species that has plenty of biomass, yet has a fairly low impact on the communitys organization
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C)
A rare species that has minimal impact oc the biomass and on other species in the community
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D)
A dominant species that constitutes a large proportion of the biomass and which affects many other species
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question_answer 170) Which one of the following plant functions as symbiotic nitrogen fixing plant?
A)
Azolla
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B)
Cycas
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C)
Moss
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D)
Marchantia
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question_answer 171) Bowmans glands are found in
A)
olfactory epithelium
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B)
external auditory canal
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C)
cortical nephrons only
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D)
juxta medullary nephrons
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question_answer 172) An important evidence in favour of organic evolution is the occurrence of
A)
homologous and vestigial organs
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B)
analogous and vestigial organs
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C)
homologous organs only
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D)
Homologous and analogous organs
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question_answer 173) Eutrophication is the result of
A)
bryophyte
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B)
algae and aquatic plants
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C)
gymnosperm
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D)
pteridophyte
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question_answer 174) Which one of the following is no biodegradable?
A)
Sewage
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B)
DDT
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C)
Live stock waste
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D)
Market garbage
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question_answer 175) ADH controls water permeability of
A)
distal convoluted tubule
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B)
proximal convoluted tubule
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C)
Bowmans capsule
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D)
All of the above
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question_answer 176) The cause of decline in the population of reptiles and birds is
A)
DDT
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B)
biofertilizer
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C)
bioinsecticides
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D)
biodegradable
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question_answer 177) Which one of the following shows detritus food Aain?
A)
Organic waste \[\to \] Bacteria \[\to \] Molluscus
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B)
Grass \[\to \] Insects \[\to \] Snakes
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C)
Plankton \[\to \] Small fishes \[\to \] Large fishes
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D)
All of the above
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question_answer 178) Which of the following enzyme helps in digesting protein in stomach?
A)
Trypsin
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B)
Pepsin
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C)
Ptyalin
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D)
Rennin
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question_answer 179) The Leydig cells secrete
A)
estrogen
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B)
testosterone
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C)
progesterone
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D)
cortisol
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question_answer 180) Which one of the following is not a biofertilizer?
A)
Bacillus thuringiensis
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B)
Azotobacter
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C)
Azolla
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D)
Clostridium
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question_answer 181) In India hot spot area is found in
A)
Western Himalaya
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B)
Tropical Andes
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C)
Madagascar
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D)
Mesoamerica
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question_answer 182) The thalloid body of a slime mould (Myxomycetes) is known as
A)
protonema
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B)
plasmodium
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C)
fruiting body
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D)
mycelium
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question_answer 183) A normal woman whose father was a colour blind person is married to a normal man. Her sons would likely to be
A)
75% colourblind
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B)
50% colourblind
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C)
All normal
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D)
All colourblind
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question_answer 184) Which of the following is not a function of liver?
A)
Production of bile
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B)
Production of insulin
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C)
Glycogen storage
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D)
Detoxification
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question_answer 185) The vital capacity of human lung is equal to
A)
500 mL
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B)
4600 mL
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C)
5800 mL
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D)
2300 Ml
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question_answer 186) Wavelength of visibile light/PAR is
A)
200-400 nm
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B)
700-900 nm
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C)
400-700 nm
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D)
100-200 nm
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question_answer 187) During day time sound level in silent zone is
A)
50 dB
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B)
70 dB
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C)
20 dB
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D)
40 dB
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question_answer 188) DNA can be formed by
A)
transaminase
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B)
lyases
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C)
RNA dependent DNA polymerase
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D)
All of the above
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question_answer 189) A cell active in protein synthesis will rich in
A)
ribosomes
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B)
Golgi bodies
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C)
mitochondria
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D)
lysosomes
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question_answer 190) The RNA primer is used in
A)
translation
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B)
replication
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C)
conjugation
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D)
transformation
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question_answer 191) The yellow colour of urine is caused by
A)
urochrome
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B)
bilirubin
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C)
Biliverdin
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D)
xanthophylls
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question_answer 192) The number of species classified in Species Plantarum
A)
5900
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B)
6000
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C)
4000
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D)
3800
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question_answer 193) Sigmoid notch is formed by
A)
cavity formed by humerus
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B)
cavity formed by radio-ulna
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C)
cavity formed by tibio-fibula
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D)
cavity formed by femur
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question_answer 194) The term innominate is related with
A)
nerve
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B)
artery
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C)
skeleton
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D)
None of these
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question_answer 195) Meselson Stahl experiment on semi- conservative replication demonstrates that
A)
50% radioactive, 50% non-radioactive
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B)
50% non-radioactive
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C)
50% radioactive
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D)
None of the above
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question_answer 196) Characteristic cells of Hydra are
A)
archeocytes
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B)
thesocytes
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C)
cnidoblasts
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D)
trophocytes
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question_answer 197) An acoelomate animal with bilateral symmetry is
A)
Hydra
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B)
Liver fluke
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C)
Physalia
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D)
Obelia
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question_answer 198) The opening of auricles and ventricle on the right side is guarded by
A)
tricuspid valve
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B)
bicuspid valve
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C)
semilunar valve
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D)
eustachian tube
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question_answer 199) In \[{{F}_{2}}\]-generation, quantitation inheritance 1 : 4 : 6 : 4 : 1 is obtained instead of
A)
9 : 3 : 3 : 1
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B)
8 : 6 : 4 : 1
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C)
7 : 4 : 1 : 4
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D)
6 : 6 : 4 : 7
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question_answer 200) Incomplete dominance is shown by
A)
Primrose
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B)
Mirabilis
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C)
Helianthus
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D)
China rose
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