question_answer 1) A solenoid of length 0.6 m has a radius of 1 cm and is made up of 600 turns. It carries a current of 6 A. What is the magnitude of the magnetic field inside the solenoid?
A)
\[7.54\times {{10}^{-3}}T\]
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B)
\[10.84\times {{10}^{-3}}T\]
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C)
\[4.87\times {{10}^{-3}}T\]
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D)
\[2.36\times {{10}^{-2}}T\]
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question_answer 2) The bus moving with a speed of 42 km/h is brought to a stop by brakes after 6m. If the same bus is moving at a speed of 90 km/h, then the minimum stopping distance is
A)
15.48 m
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B)
18.64 m
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C)
22.13 m
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D)
27.55 m
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question_answer 3) A 15pF capacitor is connected to a 60 V battery. How much electrostatic energy is stored?
A)
\[2.77\times {{10}^{-8}}J\]
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B)
\[1.77\times {{10}^{-8}}J\]
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C)
\[2.35\times {{10}^{-8}}J\]
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D)
\[1.35\times {{10}^{-8}}J\]
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question_answer 4) In a video signal for transmission of picture, what value of bandwidth is used in communication system?
A)
2.4 MHz
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B)
4.2 MHz
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C)
24 MHz
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D)
42 MHz
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question_answer 5) A straight wire of mass 300 g and length 2.5m carries a current of 3.5 A. It is suspended in mid-air by a uniform horizontal magnetic field B. What is the magnitude of the magnetic field?
A)
0.654 T
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B)
0.336 T
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C)
1.576 T
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D)
0.939 T
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question_answer 6) When longitudinal wave propagate, what happens in the region of compressions and rarefactions?
A)
Density varies
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B)
Density remains constant
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C)
There is heat transfers
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D)
Boyles law is obeyed
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question_answer 7) If the temperature of the body is increased by 10%, the percentage increase in the emitted indication will be
A)
46%
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B)
40%
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C)
30%
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D)
80%
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question_answer 8) A galaxy is moving away from an observe on the earth so that sodium light of wavelength \[5892\overset{o}{\mathop{A}}\,\]is observed at 5896A. The speed of galaxy is
A)
306km/s
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B)
204 km/s
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C)
185 km/s
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D)
158 km/s
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question_answer 9) The correct order of arrangement of electromagnetic waves according to their wavelength is
A)
gamma rays < microwaves < AM radiowaves < FM radiowaves
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B)
microwaves < AM radiowaves < FM radiowaves < gamma rays
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C)
gamma rays < AM radiowaves < FM radiowaves < microwaves
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D)
gamma rays < microwaves < FM radiowaves < AM radiowaves
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question_answer 10) A constant retarding force of 80 N is applied to a body of mass 50 kg which is moving initially with a speed of 20 m/s. What would be the time required by the body to come to rest?
A)
15s
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B)
14s
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C)
12.5s
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D)
18s
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question_answer 11) Light from a point source in air falls on a spherical glass surface (n = 1.67 and radius of curvature =25 cm). The distance of the light source from the glass surface is 95 cm. At what position, the image is formed?
A)
75.45 cm
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B)
90.50 cm
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C)
105.25 cm
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D)
99.40 cm
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question_answer 12) The length of the wire is increase by 2% by applying a load of 2.5 kg-wt. What is the linear strain produced in the wire?
A)
0.1
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B)
0.01
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C)
0.2
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D)
0.02
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question_answer 13) The half life of an old rock element is 5800 years. In how many years its sample of 25 g is reduced to 6.25 g.
A)
2900 years
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B)
5800 years
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C)
11600 years
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D)
23200 years
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question_answer 14) The earth takes 24 h to rotate once about its axis. How much time does the sun take to shift by\[5{}^\circ \]when viewed from the earth?
A)
20 min
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B)
15 min
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C)
10 min
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D)
5 min
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question_answer 15) Which of the following is a dimension less quantity?
A)
Magnetic flux density
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B)
Electric flux density
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C)
Lumen flux density
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D)
Optical density
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question_answer 16) A crane lifts weight of 75 kg to a height of 15 m in 15 s. The power of the crane is (assuming\[g=9.8\text{ }m/{{s}^{2}}\])
A)
635 W
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B)
735 W
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C)
835W
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D)
1135W
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question_answer 17) The escape velocity from the surface of the earth is\[11.2\text{ }km{{s}^{-1}}\]. What is the escape velocity in a planet whose radius is three times that of the earth and on which the acceleration due to gravity is three times of that on the earth?
A)
\[11.2\text{ }km{{s}^{-1}}\]
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B)
\[22.4\text{ }km{{s}^{-1}}\]
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C)
\[33.6\text{ }km{{s}^{-1}}\]
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D)
\[5.6\text{ }km{{s}^{-1}}\]
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question_answer 18) What is the dimensional formula for work?
A)
\[[ML{{T}^{-2}}]\]
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B)
\[[M{{L}^{2}}{{T}^{-2}}]\]
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C)
\[[M{{L}^{3}}{{T}^{-2}}]\]
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D)
\[[M{{L}^{2}}{{T}^{-1}}]\]
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question_answer 19) When the gas expands with temperature using the relation\[V=K{{T}^{2/3}}\]for the temperature change of 40 K, the work done is
A)
\[20.1\,R\]
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B)
\[30.2\,R\]
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C)
\[26.6\,R\]
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D)
\[35.6\,R\]
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question_answer 20) The resonant frequency of a L-C-R circuit depends upon
A)
L and R
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B)
C and R
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C)
L and C
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D)
L, C and R
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question_answer 21) A wheel with 30 metallic spokes each of 7.0 m long is rotated with a speed of 120 rev/min, in a plane normal to the horizontal component of the earths magnetic field\[{{H}_{E}}\]at a place. If\[{{H}_{E}}=0.8\]Gat the place what is the induced emf between the axis and the rim of the wheel? (Give\[1G={{10}^{-4}}T\])
A)
\[2.46\times {{10}^{-4}}V\]
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B)
\[6.28\times {{10}^{-4}}V\]
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C)
\[5.76\times {{10}^{-5}}V\]
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D)
\[4.92\times {{10}^{-4}}V\]
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question_answer 22) In a circuit, 3 resistors of resistance\[1.2\,\Omega ,\]\[2\,\Omega ,3\,\Omega \] are connected in parallel. The value of equivalent resistance is
A)
less than\[1.2\,\Omega \]
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B)
greater than\[1.2\,\Omega \]
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C)
between\[1.2\,\Omega \]and\[2\,\Omega \]
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D)
between\[2\,\Omega \]and\[3\,\Omega \]
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question_answer 23) The magnetic field is absent in which one of the following physical situation?
A)
Surface of neutron star
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B)
Surface of the earth
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C)
Human nerve fiber
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D)
At some point on the axis of bar magnet
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question_answer 24) What amount of energy is associated with mass of 2.5 kg?
A)
\[6.27\times {{10}^{17}}J\]
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B)
\[4.27\times {{10}^{17}}J\]
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C)
\[0.27\times {{10}^{17}}J\]
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D)
\[2.27\times {{10}^{17}}J\]
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question_answer 25) The ratio of radii of nuclei of two atoms of element of atomic mass numbers 27 and 64 is
A)
\[3:4\]
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B)
\[4:3\]
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C)
\[9:16\]
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D)
\[16:9\]
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question_answer 26) MSI integrated chip contains
A)
less than 10 gates
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B)
10 to 100 gates
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C)
100 to 1000 gates
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D)
1000 to 10000 gates
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question_answer 27) What is the torque of a force\[3\hat{i}+7\hat{j}+4\hat{k}\] about the origin, if the force acts on a particle whose position vector is\[2\hat{i}+2\hat{j}+1\hat{k}\]?
A)
\[\hat{i}-5\hat{j}+8\hat{k}\]
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B)
\[2\hat{i}+2\hat{j}+2\hat{k}\]
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C)
\[\hat{i}+\hat{j}+\hat{k}\]
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D)
\[3\hat{i}+2\hat{j}+3\hat{k}\]
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question_answer 28) A message signal of frequency 20 kHz and peak voltage of 15 V is used to modulate a carrier wave of 1000 kHz and peak voltage of 30 V. The modulation index and upper side band are respectively
A)
0.50 and 1020kHz
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B)
0.66 and 1020kHz
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C)
0.50 and 980 kHz
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D)
0.66 and 980 kHz
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question_answer 29) Calculate, the efficiency of the engine, if Carnot cycle operates at\[{{T}_{1}}=550\text{ }K\]and \[{{T}_{2}}=320\text{ }K\]producing 2.3 kJ of mechanical work per cycle?
A)
0.418
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B)
0.622
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C)
0.823
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D)
0.902
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question_answer 30) Which of the following device is the application of photoelectric effect?
A)
Light emitting diode
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B)
Diode
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C)
Photocell
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D)
Transistor
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question_answer 31) The waves used for Line-of-Sight (LOS) communication are
A)
ground waves
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B)
space waves
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C)
sound waves
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D)
sky waves
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question_answer 32) The inductance L of a solenoid depends upon its radius R as
A)
\[L\propto R\]
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B)
\[L\propto 1/R\]
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C)
\[L\propto {{R}^{2}}\]
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D)
\[L\propto {{R}^{3}}\]
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question_answer 33) How much revolution does the engine make during the time when a motor wheel with angular speed is increased from 720 rpm to 2820 rpm in 14 s?
A)
354
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B)
490
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C)
413
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D)
620
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question_answer 34) If the pressure at half of the lake is equal to 1/3 pressure at the bottom of the lake, what is the depth of the lake? (Assume\[g=10\text{ }m/{{s}^{2}}\]and 1 aim\[=1\times {{10}^{5}};\text{ }\rho \]water\[={{10}^{3}}\])
A)
9.6 m
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B)
7.5 m
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C)
4.4 m
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D)
3.2 m
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E)
None of the Above
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question_answer 35) The value of Rydberg constant is
A)
\[1.997\times {{10}^{7}}{{m}^{-1}}\]
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B)
\[1.097\times {{10}^{-7}}{{m}^{-1}}\]
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C)
\[1.097\times {{10}^{7}}{{m}^{-1}}\]
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D)
\[19.97\times {{10}^{7}}{{m}^{-1}}\]
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question_answer 36) A car moving on a straight road covers 1/3 of the distance with 25 km/h and rest with 75 km/h. The average speed is
A)
25 km/h
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B)
45 km/h
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C)
55 km/h
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D)
75 km/h
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question_answer 37) The distance at which average radius of the earth orbit subtends an angle of 1 arc second is
A)
parsec
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B)
astronomical unit
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C)
light year
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D)
unified atomic unit
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question_answer 38) What happens to the acceleration due to gravity with the increase in altitude from the surface of the earth?
A)
Increase
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B)
Decrease
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C)
First decrease and then increase
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D)
Remains same
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question_answer 39) Lenzs law is a consequence of the law of conservation of
A)
charge
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B)
mass
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C)
momentum
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D)
energy
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question_answer 40) The angle between the true geographic north and the north shown by a compass needle is called as
A)
inclination
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B)
magnetic declination
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C)
angle of meridian
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D)
magnetic pole
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question_answer 41) An air bubble of\[2\text{ }c{{m}^{3}}\]rises from the bottom of a lake of 32 m at a temperature of\[9{}^\circ C\]. When the bubble reaches the surface of the lake from the bottom of the lake, what volume does it grows for which temperature is\[30{}^\circ C\](assume \[g=10m/{{s}^{2}}\]and density\[\rho ={{10}^{3}}kg/{{m}^{3}}\])
A)
\[5.937\text{ }c{{m}^{3}}\]
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B)
\[8.937\text{ }c{{m}^{3}}\]
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C)
\[12.937\text{ }c{{m}^{3}}\]
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D)
\[16.937\text{ }c{{m}^{3}}\]
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question_answer 42) Which quantity is transmitted with propagation of longitudinal waves through a medium?
A)
Dispersion
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B)
Energy
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C)
Matter
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D)
Frequency
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question_answer 43) A monochromatic light of frequency\[3\times {{10}^{14}}\] Hz is produced by a Laser, emits the power of\[3\times {{10}^{-3}}W\]. Find, how many number of photons are emitted per second
A)
\[1.5\times {{10}^{16}}\]
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B)
\[2.5\times {{10}^{16}}\]
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C)
\[4.5\times {{10}^{16}}\]
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D)
\[8.5\times {{10}^{16}}\]
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question_answer 44) A mountaineer standing on the edge of a cliff 441m above the ground throws a stone horizontally with an initial speed of 20 m/s. What is the speed with which the stone reaches the ground?
A)
90 m/s
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B)
95.08 m/s
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C)
85 m/s
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D)
92 m/s
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question_answer 45) A zener diode is used as
A)
an amplifier
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B)
a rectifier
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C)
a voltage regulator
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D)
a light emitting device
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question_answer 46) In which of the following does the intensity of sound vary with time?
A)
Doppler effect
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B)
Beats
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C)
Transverse waves
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D)
Longitudinal waves
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question_answer 47) A solid cylindrical of mass 30 kg rotates about its axis with an angular speed of 50 rad/s. What is the KE associated with the rotation of the cylinder, if the radius of the cylinder is 0.30 m?
A)
1500.5 J
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B)
1687.5 J
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C)
2000.7J
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D)
1350.0 J
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question_answer 48) The circuits that make rippled AC to pure DC are known as
A)
DC converters
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B)
junction diodes
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C)
bipolar transistors
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D)
filters
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question_answer 49) A string of mass 3 kg is under tension of 400 N. The length of the stretched string is 25 cm. If the transverse jerk is stuck at one end of the string how long does the disturbance take to reach the other end?
A)
0.047s
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B)
0.055s
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C)
0.034s
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D)
0.065s
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question_answer 50) The total energy of an electron in 4th orbit of hydrogen atom is
A)
\[-13.6eV\]
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B)
\[-3.4eV\]
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C)
\[-1.51eV\]
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D)
\[-0.85eV\]
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question_answer 51) The graph between voltage and current across a conductor that follows Ohms law is
A)
straight line
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B)
parabolic
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C)
sine-curve
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D)
cos-curve
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question_answer 52) An athlete throws the shot-put of mass 4 kg with initial speed of\[2.2\text{ }m{{s}^{-1}}\]at\[41{}^\circ \]from a height of 1.3 m from the ground. What is the KE of the shot-put when it reaches the ground? (Ignoring the air resistance and gravity \[g=9.8m/{{s}^{2}}\])
A)
42.84 J
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B)
52.84 J
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C)
62.84 J
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D)
72.84 J
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question_answer 53) Two bulbs operating on standard voltage 110V have resistances in the ratio\[9:16\]. The ratio of brightness of light from them is
A)
\[3:16\]
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B)
\[16:9\]
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C)
\[3:4\]
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D)
\[4:3\]
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question_answer 54) The neutral point on potentiometers scale for two cells of EMF 2.1 and E volts is observed at distances 40 cm and 56 cm respectively. The value of E is
A)
2.10V
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B)
2.94V
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C)
1.50V
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D)
1.20V
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question_answer 55) Which one of the following equation is Torricelli law?
A)
\[P=\rho gh\]
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B)
\[v=\sqrt{2hg}\]
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C)
\[\eta {{R}_{e}}=\rho vd\]
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D)
\[S(2d)=Fd\]
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question_answer 56) Which of the law representing Maxwells third equation?
A)
Gausss law for electricity
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B)
Ampere-Maxwell law
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C)
Gausss law of magnetism
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D)
Faradays law
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question_answer 57) A silver wire has a resistance of\[1.6\,\Omega \]. At \[25.5{}^\circ C,\]and a resistance of\[2.5\,\Omega \]. at\[100{}^\circ C,\]then temperature coefficient of resistivity of silver is
A)
\[5.55\times {{10}^{-3}}{}^\circ C\]
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B)
\[7.55\times {{10}^{-3}}{}^\circ C\]
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C)
\[11.75\times {{10}^{-2}}{}^\circ C\]
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D)
\[15.5\times {{10}^{-3}}{}^\circ C\]
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question_answer 58) When a particle returns to its initial point, its
A)
displacement is zero
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B)
average velocity is zero
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C)
distance is zero
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D)
average speed is zero
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question_answer 59) A body weight 45 N on the surface of the earth. What is the gravitational force on it due to the earth at a height equal to half of the radius of the earth?
A)
20 N
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B)
45 N
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C)
40 N
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D)
90 N
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question_answer 60) The angle of a prism is\[42{}^\circ \]and refractive index of its material is 3/2. Then, angle of minimum deviation for this prism is
A)
\[63{}^\circ \]
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B)
\[42{}^\circ \]
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C)
\[28{}^\circ \]
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D)
\[21{}^\circ \]
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question_answer 61) A conducting sphere of radius 5 cm has an unknown charge. The electric field at 10 cm from the centre of the sphere is\[1.8\times {{10}^{3}}N/C\] and points radially inward. What is the net charge on the sphere?
A)
1.8 nC
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B)
2 nC
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C)
1 nC
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D)
1.5 Nc
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question_answer 62) For transistors the value of P is 50 then, the value of a is
A)
50/51
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B)
49/50
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C)
51/50
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D)
50/49
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question_answer 63) An infinite line charge produces a field of \[18\times {{10}^{5}}N/C\] at a distance of 4 cm. What is the linear charge density?
A)
\[18\mu C/m\]
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B)
\[5\mu C/m\]
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C)
\[4\mu C/m\]
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D)
\[10\mu C/m\]
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question_answer 64) What is the fraction of molecular volume to the actual volume occupied by oxygen gas at STP? Given, the diameter of oxygen molecule is\[2\overset{o}{\mathop{\text{A}}}\,\].
A)
\[1.75\times {{10}^{-4}}\]
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B)
\[1.5\times {{10}^{-4}}\]
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C)
\[12\times {{10}^{-4}}\]
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D)
\[1.125\times {{10}^{-4}}\]
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question_answer 65) A 400 pF capacitor is charged by a 100 V supply. How much electrostatic energy is lost in the process of disconnecting from the supply and connecting another uncharged 400 pF capacitor?
A)
\[{{10}^{-5}}J\]
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B)
\[{{10}^{-6}}J\]
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C)
\[{{10}^{-7}}J\]
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D)
\[{{10}^{-4}}J\]
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question_answer 66) The ratio of magnitude of electric displacement and electric field is
A)
charge density
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B)
permittivity
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C)
electric susceptibility
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D)
dielectric constant
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question_answer 67) An object is gently placed on a long converges belt moving with\[11\text{ }m{{s}^{-1}}\]. If the coefficient of friction is 0.4, then the block will slide in the belt up to a distance of
A)
10. 21m.
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B)
15.43m
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C)
20.3m
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D)
25.6m
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question_answer 68) A spring balance has a scale that reads from 0 to 60 kg. The length of the scale is 30 cm. A body suspended from this balance and when displaced and released, oscillates with a period of 0.8 s, what is the weight of the body when oscillating?
A)
350.67 N
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B)
540.11 N
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C)
311.24N
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D)
300.5 N
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question_answer 69) The magnetic needle has magnetic moment \[8.7\times {{10}^{-2}}A-{{m}^{2}}\]and moment of inertia\[11.5\times {{10}^{-6}}kg-{{m}^{2}}\]. It performs 10 complete oscillations in 6.70 s, what is the magnitude of the magnetic field?
A)
0.012 T
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B)
0.120 T
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C)
1.200 T
done
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D)
2.10 T
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question_answer 70) The distance for which ray optics is good approximation for an aperture 5mm and wavelength \[5000\overset{o}{\mathop{\text{A}}}\,\] is
A)
18m
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B)
30m
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C)
38m
done
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D)
50m
done
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question_answer 71) A compound microscope has a magnification of 30. The focal length of the eye-piece is 5 cm. If the final image is formed at the least distance of distinct vision (25 cm) the magnification produced by the objective is
A)
10
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B)
7.5
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C)
5
done
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D)
15
done
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question_answer 72) Which of the following relation is called mirror equation?
A)
\[u/v+f/u=1/f\]
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B)
\[1/v+1/u=1/f\]
done
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C)
\[1/f+u=1/v\]
done
clear
D)
\[uf+vf=uv\]
done
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question_answer 73) A stone of mass 0.05 kg is thrown vertically upwards. What is the direction and magnitude of the net force on the stone during its upward motion?
A)
0.49 N vertically downward direction
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B)
0.49 N vertically upwards direction
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C)
0.05 N vertically downwards direction
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D)
9.8 N vertically upwards direction
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question_answer 74) Two different coils have self-inductance\[{{L}_{1}}=8\,mH,\]\[{{L}_{2}}=2\,mH.\]The current in one coil is increased at a constant rate. The current in the second coil is also increased at the same rate. At a certain instant of time, the power given to the two coils is the same. At that time the current, the induced voltage and the energy stored in the first coil are\[{{i}_{1}},{{V}_{1}}\]and\[{{W}_{1}}\]respectively. Corresponding values for the second coil at the same instant are\[{{i}_{2}},{{V}_{2}}\]and\[{{W}_{2}}\]respectively. Then,
A)
\[{{W}_{2}}/{{W}_{1}}=8\]
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B)
\[{{W}_{2}}/{{W}_{1}}=1/8\]
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C)
\[{{W}_{2}}/{{W}_{1}}=4\]
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D)
\[{{W}_{2}}/{{W}_{1}}=1/4\]
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question_answer 75) A concave mirror of focal length f produces a real image n times the size of the object. The distance of the object from the mirror is
A)
\[(n-1)f\]
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B)
\[(n+1)f\]
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C)
\[(n+1)f/n\]
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D)
\[(n-1)f/n\]
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question_answer 76) Which of the following mentioned is a type of hydrocarbon?
A)
Saturated hydrocarbons
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B)
Unsaturated hydrocarbons
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C)
Aromatic hydrocarbons
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D)
All of the above
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question_answer 77) The process of formation of polymers from respective monomers is called
A)
polyacrylonitrile
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B)
copolymerisation
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C)
polymerization
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D)
None of the above
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question_answer 78) Energy of one mole of photons of radiation whose frequency is\[5\times {{10}^{14}}Hz\]is
A)
\[199.51\text{ }kJmo{{l}^{-1}}\]
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B)
\[189.51\text{ }kJmo{{l}^{-1}}\]
done
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C)
\[198.51\text{ }kJmo{{l}^{-1}}\]
done
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D)
\[188.51\text{ }kJmo{{l}^{-1}}\]
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question_answer 79) The total number of orbitals associated with the principal quantum number\[n=3\]is
A)
9
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B)
8
done
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C)
5
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D)
7
done
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question_answer 80) Mass number of an atom is the sum of
A)
number of protons\[+\]number of neutrons \[+\]number of electrons
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B)
number of protons\[+\]number of neutrons
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C)
number of protons\[+\]number of electrons
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D)
number of electrons\[+\]number of neutrons
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question_answer 81) Which of the following is used in the manufacture of alloys?
A)
Lithium
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B)
Halides
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C)
Plaster of Paris
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D)
Beryllium
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question_answer 82) Williamsons synthesis is used to prepare
A)
acetone
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B)
PVC
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C)
ethers
done
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D)
bakelite
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question_answer 83) Which acid is present in vinegar?
A)
Formic acid
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B)
Acetic acid
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C)
Butyric acid
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D)
Tartaric acid
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question_answer 84) What is the percentage of free space in body centered cubic unit cell?
A)
32%
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B)
20%
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C)
34%
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D)
28%
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question_answer 85) In the formation of TC-bond, the atomic orbitals overlap in such a way that
A)
their axes remain parallel to each other and perpendicular to the internuclear axis
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B)
their axes remain parallel to each other and parallel to the internuclear axis
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C)
their axes remain perpendicular to each other and parallel to the internuclear axis
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D)
their axes remain perpendicular to each other and perpendicular to the internuclear axis
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question_answer 86) What elements are present in /-block series?
A)
Lanthanoids
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B)
Actinoids
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C)
Lanthanoids and actinoids
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D)
Lipids
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question_answer 87) What colour is imparted into the flame when lithium is burnt?
A)
Golden yellow
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B)
Brick red
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C)
Crimson red
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D)
Grassy green
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question_answer 88) Which among the following is a non-colligative property?
A)
Elevation in boiling point
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B)
Osmotic pressure
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C)
Refractive index
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D)
Lowering of vapour pressure
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question_answer 89) Ethylene can be converted into alcohol by treatment of
A)
\[Aq.\text{ }KOH\]
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B)
\[{{H}_{2}}S{{O}_{4}}\]as catalyst
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C)
Moist silver oxide
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D)
\[Zn/HCl\]
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question_answer 90) Negatively charged particles are called
A)
electrons
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B)
protons
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C)
neutrons
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D)
None of these
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question_answer 91) Atoms with identical atomic number but different atomic mass number are known as
A)
polymers
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B)
isobars
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C)
isotopes
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D)
isomers
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question_answer 92) The colour of transition metal compound is due to
A)
complete ns subshell
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B)
small size metal ions
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C)
incomplete\[(n-1)d\]subshell
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D)
absorption of light in UV region
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question_answer 93) The mixture of reactants and products in the equilibrium state is called?
A)
Chemical mixture
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B)
Equilibrium mixture
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C)
Chemical equilibrium
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D)
Dynamic equilibrium
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question_answer 94) Among the following molecule which has the zero. dipole moment?
A)
\[B{{F}_{3}}\]
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B)
\[{{H}_{2}}O\]
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C)
\[N{{F}_{3}}\]
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D)
\[Cl{{O}_{2}}\]
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question_answer 95) Who has synthesised the organic compound urea for the first time?
A)
Friedrich Wohler
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B)
Berzelius
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C)
Kolbe
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D)
Berthelot
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question_answer 96) How much is the pH of human blood?
A)
5.2
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B)
8.3
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C)
6.3
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D)
7.4
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question_answer 97) A reagent which lowers the oxidation number of an element in a given substance in known as
A)
oxidising agent
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B)
reduction
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C)
reducing agent
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D)
oxidation
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question_answer 98) Sodium carbonate is manufactured by
A)
Castner-Kellner
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B)
Solvay process
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C)
oxidation
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D)
transmission process
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question_answer 99) EDTA can form complex with how many number of donor atoms?
A)
One
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B)
Two
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C)
Six
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D)
Three
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question_answer 100) Henrys law constant value for\[{{O}_{2}}\]in water is
A)
46.82
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B)
43.86
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C)
88.84
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D)
76.48
done
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question_answer 101) Polycondensation products of dicarboxylic acids and diols are
A)
polyamides
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B)
neoprene
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C)
glyptal
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D)
polyesters
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question_answer 102) The attractive force which holds various constituents together in different chemical species is called
A)
valence bond
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B)
chemical bond
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C)
atomic bond
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D)
electrovalent bond
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question_answer 103) What are lanthanides and actinides?
A)
Inner transition element
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B)
Noble gas
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C)
Normal element
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D)
Transition element
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question_answer 104) Compounds having the same molecular formula but different structures are classified as
A)
functional group isomers
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B)
structural isomers
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C)
optical isomerism
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D)
Metamerism
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question_answer 105) Gas constant is equal to the
A)
product of two specific heat
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B)
difference of two specific heat
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C)
ratio of two specific heat
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D)
sum of two specific heat
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question_answer 106) The colour in the coordination compounds can be readily explained in terms of
A)
spectrochemistry
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B)
chelate effect
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C)
crystal field theory
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D)
None of the above
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question_answer 107) Paramagnetism is exhibited due to which one of the following reason?
A)
Presence of unpaired electrons
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B)
Presence of completely filled electronic subshell
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C)
By non-transition element
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D)
By elements with noble gas configuration
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question_answer 108) Which one of the following acid does not have a carboxylic group?
A)
Methanoic acid
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B)
Ethanoic acid
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C)
Propanoic acid
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D)
Picric acid
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question_answer 109) How will you define the specific heat at constant volume?
A)
The amount of heat required to raise the temperature of unit mass of gas through one degree at constant pressure
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B)
The amount of heat required to raise the temperature of 1 kg of water through one degree.
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C)
The amount of heat required to raise the temperature of unit mass of gas through one degree at constant volume
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D)
All of the above
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question_answer 110) The chief commercial use of amines as intermediates in the synthesis of
A)
medicines
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B)
fibers
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C)
medicines and fibers
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D)
proteins
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question_answer 111) Silver, gold, platinum, iron, copper and titanium are part of the
A)
minerals
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B)
transition metals
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C)
salts
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D)
All of these
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question_answer 112) Wood spirit is known as
A)
Ethanol
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B)
Methanol
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C)
Propanol
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D)
None of these
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question_answer 113) What is the value of 1/n in Freundlich adsorption isotherm ?
A)
Between 2 and 4 in all cases
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B)
Between 0 and 1 in all cases
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C)
1 in case of chemisorptions
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D)
1 in case of physical adsorption
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question_answer 114) What is the product of reaction between calcium carbide and water?
A)
Ethylene
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B)
Acetylene
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C)
Methane
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D)
Benzene
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question_answer 115) The crystal lattice of electrovalent compound is composed of
A)
oppositely charged ions
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B)
both molecules and ions
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C)
molecules
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D)
atoms
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question_answer 116) Anti-Markownikoff addition of\[HBr\]is observed in
A)
propene
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B)
but-2-ene
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C)
pent-2-ene
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D)
All of these
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question_answer 117) What kind of isomerism is exhibited by the compounds\[C{{H}_{3}}C{{H}_{2}}CHO\]and\[C{{H}_{3}}COC{{H}_{3}}\]?
A)
Geometrical isomerism
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B)
Functional isomers
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C)
Tautomers
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D)
Metamers
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question_answer 118) Mass of a proton is
A)
0.00727 amu
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B)
1.0087 amu
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C)
0.00054 amu
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D)
1.00727 amu
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question_answer 119) The concentration of hydrogen ion in a sample of soft drink is\[3.8\times {{10}^{-3}}M\]. What is its pH?
A)
3.84
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B)
2.42
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C)
4.44
done
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D)
1.42
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question_answer 120) Which factor has no influence on the rate of reaction?
A)
Molecularity
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B)
Temperature
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C)
Concentration of reactant
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D)
Nature of reactant
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question_answer 121) What kinds of bonds are present in ethane molecule?
A)
1 pi and 5 sigma bonds
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B)
1 pi and 3 sigma bonds
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C)
1 sigma and 1 pi bonds
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D)
3 sigma and 3 pi bonds
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question_answer 122) The smallest quantity of energy that can be emitted or absorbed in the form of electromagnetic radiation is known as
A)
quantum
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B)
photon
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C)
spectrum
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D)
photoelectron
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question_answer 123) Food preservatives prevent spoilage of food due to microbial growth. The most commonly used preservatives are
A)
table salt, sugar
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B)
vegetable oils and sodium benzoate
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C)
\[{{C}_{6}}{{H}_{5}}COONa\]
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D)
All of the above
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question_answer 124) Based on which method amines are prepared?
A)
Reduction of nitro compounds
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B)
Ammonolysis of alkyl halides
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C)
Reduction of nitrites and amides
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D)
All of the above
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question_answer 125) All substances that conduct electricity in aqueous solutions are called?
A)
Electrolytes
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B)
Acids
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C)
Buffers
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D)
Catalyst
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question_answer 126) In which year, IUPAC draft recommends that anionic ligands will end with-ido so that chloro would become chlorido
A)
1994
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B)
1984
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C)
2000
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D)
2004
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question_answer 127) Use of chemicals for therapeutic effect is called
A)
medicines
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B)
chemotherapy
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C)
drug-target interaction
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D)
phototherapy
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question_answer 128) What is the type of hybridisation found in methane?
A)
\[s{{p}^{3}}\]
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B)
\[s{{p}^{2}}\]
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C)
\[sp\]
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D)
None of these
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question_answer 129) Addition of oxygen to an element or a compound is termed as
A)
oxidation
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B)
reduction
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C)
ionisation
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D)
redox reaction
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question_answer 130) Molality of 2.5 g of ethanoic acid\[(C{{H}_{3}}COOH)\]in 75 g of benzene is
A)
\[0.565\text{ }mol\text{ }k{{g}^{-1}}\]
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B)
\[0.656\text{ }mol\text{ }k{{g}^{-1}}\]
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C)
\[0.556\text{ }mol\text{ }k{{g}^{-1}}\]
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D)
\[0.665\text{ }mol\text{ }k{{g}^{-1}}\]
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question_answer 131) It has been found that for a chemical reaction with rise in temperature by\[10{}^\circ ,\]the rate constant is
A)
nearly doubled
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B)
nearly tripled
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C)
increases 5 times
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D)
increases 4 times
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question_answer 132) Carbonyl compounds are constituents of
A)
fabrics, drugs
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B)
fabrics, plastics
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C)
flavourings, plastics
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D)
All of these
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question_answer 133) What is IUPAC name of iso-propylamine?
A)
Propan-2-amine
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B)
Ethanamine
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C)
2-aminotoluene
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D)
Propan-1-amine
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question_answer 134) lonization energy and electron affinity are defined at
A)
enthalpy
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B)
spontaneity
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C)
equilibrium
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D)
absolute zero
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question_answer 135) When acetaldehyde is heated with dilute sodium hydroxide solution, the product is
A)
ethanol and sodium acetate
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B)
paraldehyde
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C)
aldol
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D)
brown resin
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question_answer 136) Monovalent sodium and potassium ions, divalent magnesium and calcium ions are found in
A)
lipids
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B)
biological fluids
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C)
fats
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D)
enzymes
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question_answer 137) The removal of an electron from an atom results in the formation of
A)
anion
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B)
anode
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C)
cation
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D)
cathode
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question_answer 138) Which compound is responsible for perfumery?
A)
Ketones
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B)
Ethers
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C)
Alcohols
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D)
Esters
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question_answer 139) Which is the metal present in the coordination compound chlorophyll?
A)
Ca
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B)
Mg
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C)
K
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D)
Na
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question_answer 140) 45 g of ethylene glycol\[({{C}_{2}}{{H}_{6}}{{O}_{2}})\]is mixed with 600 g of water, what is the depression of freezing point?
A)
7.9 K
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B)
2.5 K
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C)
6.6 K
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D)
2.2 K
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question_answer 141) In\[B{{r}_{3}}{{O}_{8}}\]compound, oxidation number of bromine is
A)
16/13
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B)
26/3
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C)
24/3
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D)
16/3
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question_answer 142) How many octahedral void(s) are present per atom in a cubic close - packed structure?
A)
3
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B)
4
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C)
1
done
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D)
2
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question_answer 143) Lithium shows diagonal relationship with
A)
sodium
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B)
magnesium
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C)
calcium
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D)
aluminium
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question_answer 144) Why d-block element form complexes?
A)
Due to large size and high nuclear charge
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B)
Due to small size and low nuclear charge
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C)
Due to small size and high nuclear charge
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D)
None of the above
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question_answer 145) What is conductance?
A)
Inverse of resistance
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B)
Proportional of resistance
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C)
Equal of resistivity
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D)
Equal of resistance
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question_answer 146) Which is the correct statement about solid?
A)
Very high compressibility
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B)
Maximum intermolecular distance
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C)
Definite mass but no definite volume
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D)
Maximum intermolecular force of attraction
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question_answer 147) The enthalpy change accompanying a reaction is called
A)
reaction enthalpy
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B)
standard enthalpy
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C)
thermochemical equation
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D)
enthalpy of atomization
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question_answer 148) According to IUPAC system, what is the correct name of the compound\[[Cr{{(N{{H}_{3}})}_{3}}{{({{H}_{2}}O)}_{3}}]C{{l}_{3}}\]
A)
triamminetriaquachromium (III) chloride
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B)
triamminetriaquachromiumchloride (III)
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C)
tetraammoniumtriaquachromium (III) chloride
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D)
None of the above
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question_answer 149) The relative ease of dehydration of alcohols follows following order
A)
tertiary > secondary > primary
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B)
primary > secondary > tertiary
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C)
secondary > tertiary > primary
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D)
tertiary > primary > secondary
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question_answer 150) What is the unit of zero order reaction?
A)
\[mol\,L\,{{s}^{-1}}\]
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B)
\[{{s}^{-1}}\]
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C)
\[L\,mo{{l}^{-1}}{{s}^{-1}}\]
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D)
None of the above
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question_answer 151) Rough endoplasmic reticulum is actively involved in
A)
protein synthesis
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B)
hormone synthesis
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C)
lipid synthesis
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D)
carbohydrate synthesis
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question_answer 152) Passive immunity is
A)
inherited from parents
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B)
acquired through first exposure to the disease
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C)
achieved directly through ready-made antibodies
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D)
achieved through vaccination
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question_answer 153) Perinuclear space is present in
A)
cytoplasm
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B)
nucleus
done
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C)
ER (Endoplasmic Reticulum)
done
clear
D)
Golgi apparatus
done
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question_answer 154) To produce one molecule of glucose Calvin cycle turns
A)
2 times
done
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B)
4 times
done
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C)
6 times
done
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D)
8 times
done
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question_answer 155) In dicotyledonous stem, which of the following is the sequence of tissues from to outside?
A)
Pith, phloem, cambium, protoxylem, metaxylem, pericycle, parenchyma, collenchyma, endodermis and epidermis
done
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B)
Pith, cambium, phloem, protoxylem, metaxylem, pericycle, endodermis, parenchyma, collenchyma and epidermis
done
clear
C)
Pith. phloem, protoxylem, metaxylem, cambium, pericycle, endodermis, parenchyma, collenchyma and epidermis
done
clear
D)
Pith. protoxylem, metaxylem, cambium, phloem, pericycle, endodermis, parenchyma, collenchyma and epidermis
done
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question_answer 156) Major pigments found in Phaeophyceae, i.e., brown algae are
A)
chlorophyll a, d
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B)
chlorophyll a, b, c
done
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C)
chlorophyll a, c and fucoxanthin
done
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D)
chlorophyll a, d and phycoerythrin
done
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question_answer 157) How many recombinant therapeutics have been used for human diseases throughout the world?
A)
12
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B)
24
done
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C)
30
done
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D)
56
done
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question_answer 158) Widal test is done to confirm
A)
malaria
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B)
typhoid
done
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C)
pneumonia
done
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D)
jaundice
done
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question_answer 159) During incomplete dominance,\[{{F}_{2}}-\]generation will have
A)
\[3:1\]genotypic ratio
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B)
\[3:1\]phenotypic ratio
done
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C)
\[1:2:1\]genotypic ratio
done
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D)
\[1:2:1\]phenotypic ratio
done
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question_answer 160) Cisternae have a diameter of
A)
\[0.5\text{ }\mu m\text{ }to\text{ }1.0\text{ }\mu \text{m}\]
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B)
\[\text{1}\text{.0 }\mu m\text{ }to\text{ }1.5\text{ }\mu \text{m}\]
done
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C)
\[\text{1}\text{.5 }\mu m\text{ }to\text{ 2}.0\text{ }\mu \text{m}\]
done
clear
D)
\[\text{2}\text{.0 }\mu m\text{ }to\text{ 2}.5\text{ }\mu \text{m}\]
done
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question_answer 161) The anterior portion of the sperm head which is covered by a cap-like structure called
A)
acrosome
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B)
antrum
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C)
sertoli cells
done
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D)
enzymes
done
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question_answer 162) Class is the category of taxonomy which includes related
A)
families
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B)
orders
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C)
genus
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D)
species
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question_answer 163) The secretory immunoglobulin present in the colostrum of mother is
A)
1gM
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B)
1gG
done
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C)
1gA
done
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D)
1Gd
done
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question_answer 164) When Respiratory Quotient (RQ) is less than 0.1 in a respiratory metabolism, it means that
A)
carbohydrates are used as respiratory substrate
done
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B)
volume of carbon dioxide evolved is less than volume of oxygen consumed
done
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C)
volume of carbon dioxide evolved is more than volume of oxygen consumed
done
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D)
volume of carbon dioxide evolved is equal, to volume of oxygen consumed
done
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question_answer 165) Zygote is resulted by the process
A)
isogamy
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B)
anisogamy
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C)
monogamy
done
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D)
syngamy
done
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question_answer 166) The region of DNA sequence that provides binding site for RNA polymerase is
A)
terminator
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B)
structural gene
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C)
origin sequence
done
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D)
promoter
done
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question_answer 167) A small protein attached to the outer surface of the inner membrane and which acts as a mobile carrier for transfer of electrons between complex III and IV is
A)
cytochrome d
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B)
cytochrome c
done
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C)
cytochrome b
done
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D)
cytochrome a
done
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question_answer 168) Lindemann for the first time gave energy transfer law, which states that
A)
only 20% of the energy is transferred to each trophic level
done
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B)
only 10% of the energy is transferred to each trophic level
done
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C)
only 30% of the energy is transferred to each trophic level
done
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D)
only 50% of the energy is transferred to each trophic level
done
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question_answer 169) Genes which code for a pair of contrasting characters are called
A)
factors
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B)
traits
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C)
alleles
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D)
gametes
done
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question_answer 170) During the process of sexual reproduction in flowering, plants, double fertilisation involves
A)
fertilisation of egg cell by two male gametes
done
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B)
fertilisation of egg cell and a central cell by two male gametes brought by same pollen tube
done
clear
C)
fertilisation of egg cell and a central cell by two male gametes brought by different-pollen tube
done
clear
D)
fertilisation of two egg cells by two male gametes brought by same pollen tube
done
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question_answer 171) Length of grapes stalks increases due to
A)
auxin
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B)
cytokinins
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C)
gibberellins
done
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D)
ethylene
done
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question_answer 172) The pattern of arrangement of leaves on the stem is known as
A)
heterophylly
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B)
phyllode
done
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C)
phyllotaxy
done
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D)
phylloclade
done
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question_answer 173) Megakaryocytes, special cells in the bone marrow produce cell fragments are called
A)
leucocytes
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B)
erythrocytes
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C)
thrombocytes
done
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D)
fibrinogen
done
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question_answer 174) Placentation found in tomato is
A)
marginal
done
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B)
axile
done
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C)
parietal
done
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D)
basal
done
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question_answer 175) The accumulation of urea in the blood due to malfunctioning of kidneys is referred as
A)
uremia
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B)
renal calculi
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C)
edema
done
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D)
glomerulonephritis
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question_answer 176) Typhlosole is a structure associated with
A)
circulatory system of earthworm
done
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B)
digestive system of earthworm
done
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C)
excretory system of earthworm
done
clear
D)
reproductive system of earthworm
done
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question_answer 177) Which mechanism of evolution affects the genetic makeup in a population?
A)
Natural selection
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B)
Adaptation
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C)
Genetic drift
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D)
Gene mutation
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question_answer 178) The myelin sheath around the axon is produced by which type of neuroglial cells?
A)
Satellite glial cells
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B)
Radial glial cells
done
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C)
Dendrocytes
done
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D)
Schwann cells
done
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question_answer 179) The embryo sac of angiosperms contains
A)
3 celled egg apparatus, 3 antipodal cell and 2 polar nuclei
done
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B)
2 celled egg apparatus, 3 antipodal cell and 2 polar nuclei
done
clear
C)
3 celled egg apparatus, 2 antipodal. cell and 1 polar nuclei
done
clear
D)
3 celled egg apparatus, 1 antipodal cell and 2 polar nuclei
done
clear
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question_answer 180) What is the chromosome number in the meiocytes of apple?
A)
12
done
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B)
34
done
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C)
46
done
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D)
78
done
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question_answer 181) Developing pollen is nourished by
A)
tapetum
done
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B)
endothecium
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C)
epidermis
done
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D)
middle layer
done
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question_answer 182) An endocrine gland in human, which play a important role in the regulation of rhythm of the body is
A)
adrenal gland
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B)
pineal gland
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C)
thymus
done
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D)
thyroid gland
done
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question_answer 183) The process of exchange of\[{{O}_{2}}\]from the atmosphere with\[C{{O}_{2}}\]produced by the cells is called
A)
biological respiration
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B)
photosynthesis
done
clear
C)
biological assimilation
done
clear
D)
gaseous exchange
done
clear
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question_answer 184) First husband of Asha had ABO blood type A and their child had type 0. She remarried and her second husband had ABO blood type B and their child had type AB. What is the ABO genotype of Asha and also name her blood type?
A)
ii, blood type 0
done
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B)
\[{{I}_{B}}{{I}_{O}},\]blood type B
done
clear
C)
\[{{I}_{A}}{{I}_{B}},\]blood type AB
done
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D)
\[{{I}_{B}}i,\]blood type A
done
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question_answer 185) In which techniques, the donor semen is artificially introduced into the uterus?
A)
Intra vaginal insemination
done
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B)
Intra uterine insemination
done
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C)
Intracytoplasmic sperm injection
done
clear
D)
Gamete intra Fallopian transfer
done
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question_answer 186) Carbon dioxide, methane, nitrogen oxide and chlorofluorocarbons are called green house gases because they can absorb
A)
ultraviolet radiations
done
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B)
visible light radiations
done
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C)
gamma-rays radiations
done
clear
D)
long wave infrared radiations
done
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question_answer 187) Transfer of pollen grains from the anther to the stigma of another flower of the different plant is known as
A)
autogamy
done
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B)
geitonogamy
done
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C)
xenogamy
done
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D)
cleistogamy
done
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question_answer 188) In IUCN Red List (2004) documents, the extinction 784 species includes
A)
335 vertebrates, 360 invertebrates and 89 plants
done
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B)
337 vertebrates, 362 invertebrates and 88 plants
done
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C)
338 vertebrates. 359 invertebrates and 87 plants
done
clear
D)
340 vertebrates. 357 invertebrates and 87 plants
done
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question_answer 189) Who gave semi-conservative mode of DNA replication for the first time in E.coli with the help of 15 N heavy nitrogen isotope?
A)
Watson and Crick
done
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B)
Kornberg and Ochoa
done
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C)
Meselson and Stahl
done
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D)
Luria and Delbruck
done
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question_answer 190) Axoneme is a structure associated with
A)
golgi bodies
done
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B)
only cilia
done
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C)
only flagella
done
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D)
Both cilia and flagella
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question_answer 191) Scientific names of plants are based on principles criteria agreed by and are given in
A)
IUCN
done
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B)
ICZN
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C)
ICBN
done
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D)
ICPN
done
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question_answer 192) Two plants one with black flower and other with white coloured flower were crossed in an experiment. In next generation grey coloured flowers were obtained The reason for the result is
A)
incomplete dominance
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B)
pseudo-dominance
done
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C)
codominance
done
clear
D)
None of the above
done
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question_answer 193) The depolarisation of the atria is represented by
A)
P-wave
done
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B)
Q-wave
done
clear
C)
T-wave
done
clear
D)
ORS complex
done
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question_answer 194) The enzyme involved in the crossing over between two homologous chromosome is
A)
nuclease
done
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B)
RNA polymerase
done
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C)
recombinase
done
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D)
DNA polymerase
done
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question_answer 195) During the transcription, if nucleotide sequence of DNA strand, is being coded as ATACG, then the nucleotide sequence of mRNA would be
A)
UATGC
done
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B)
TATGC
done
clear
C)
UAUGC
done
clear
D)
TATGG
done
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question_answer 196) Micro organism used for commercial production of acetic acid is
A)
Saccharomyces cerevisiae
done
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B)
Aspergilfus niger
done
clear
C)
Acetobacter
done
clear
D)
Clostridium butylicum
done
clear
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question_answer 197) \[{{C}_{4}}\]plants have bundle sheath cells which possess
A)
few chloroplasts with thin walls so that gaseous exchange can take place
done
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B)
large number of chloroplasts with thick walls impervious to gaseous exchange
done
clear
C)
large number of chloroplasts and intercellular spaces
done
clear
D)
few chloroplasts with thick walls and no intercellular spaces
done
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question_answer 198) When water moves out of the plant cell and the cell membrane of a plant shrinks away from its cell, then this condition is known as
A)
plasmolysis
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B)
exosmosis
done
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C)
hydrolysis
done
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D)
endosmosis
done
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question_answer 199) Gene therapy is a treatment that can be done with
A)
adults only
done
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B)
child or embryo only
done
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C)
pregnant mother only
done
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D)
persons of any age and any condition
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question_answer 200) Somatic hybridisation can be done by
A)
protoplast fusion
done
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B)
cell culture
done
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C)
haploid anther
done
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D)
pollen culture
done
clear
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question_answer 201) Function of zinc in plants is
A)
sugar transport
done
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B)
activation of enzymes
done
clear
C)
cell elongation
done
clear
D)
pollen germination
done
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question_answer 202) Hyacinth is termed as the terror of Bengal how it causing death of fishes?
A)
Covers the surface of the water that inhibit sunlight to pass through
done
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B)
Drains oxygen from the water that causes oxygen deficiency
done
clear
C)
Absorbs nutrients from the water that causes malnutrition
done
clear
D)
Releases carbon dioxide in a huge amount with is lethal to fishes
done
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question_answer 203) Snake, a terrestrial animal that excretes nitrogen wastes in the form of uric acid is called
A)
uricotelic
done
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B)
ureotelic
done
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C)
ammonotelic
done
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D)
Not confirmed for any type
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question_answer 204) Mendel conducted hybridisation experiments on garden peas for
A)
7 years
done
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B)
6 years
done
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C)
5 years
done
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D)
4 years
done
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question_answer 205) Pigeon is a
A)
oviparous organism
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B)
viviparous organism
done
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C)
ovo-viviparous organism
done
clear
D)
None of the above
done
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question_answer 206) During the process of artificial hybridisation if the female plant bears bisexual flowers then emasculation is done with the help of forceps, which is
A)
Removal of style from the flower bud before the anther dehiscence
done
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B)
Removal of style from the flower bud after the anther dehiscence
done
clear
C)
Removal of anthers from the flower bud before anther dehiscence
done
clear
D)
Removal of anthers from the flower bud after the anther dehiscence
done
clear
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question_answer 207) Which part of the plant contains sporogenous tissue?
A)
Pollen
done
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B)
Microspores
done
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C)
Young anther
done
clear
D)
Stamen
done
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question_answer 208) The roots hanging from the branches of banyan tree are
A)
Primary root
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B)
Fibrous root
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C)
Prop root
done
clear
D)
Pneumatophore
done
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question_answer 209) The number of individuals of the population who left the habitat and gone elsewhere during the time period under consideration is known as
A)
natality
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B)
mortality
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C)
emigration
done
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D)
immigration
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question_answer 210) The nucleus of megaspore divides mitotically to form two nuclei which move to opposite poles, and thus form an embryo sac which is
A)
8 nucleate
done
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B)
6 nucleate
done
clear
C)
4 nucleate
done
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D)
2 nucleate
done
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question_answer 211) During glycolysis fructose 1, 6-bisphosphate is split into
A)
dihydroxyacetone phosphate and 2- phosphoglycera. dehyde
done
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B)
dihydroxyacetone phosphate and 1 -phosphoglyceraldehyde
done
clear
C)
dihydroxyacetone phosphate and 2-phosphoglycerate
done
clear
D)
dihydroxyacetone phosphate and 3-phosphoglyceraldehyde
done
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question_answer 212) Bacillus thuringiensis (Bt) strains have been used for designing novel
A)
biofertilisers
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B)
bioinsecticidal plants
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C)
biomineralisation process
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D)
biometallurgical techniques
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question_answer 213) The term biomagnification refers to
A)
increase in concentration of non-degradable poilutant through a food chain
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B)
growth of organisms due to food consumption
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C)
decrease in population size
done
clear
D)
increase in population size
done
clear
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question_answer 214) What is the full form of AIDS?
A)
Acquired Immuno Deficiency Syndrome
done
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B)
Acquired Immunity Deficiency Syndrome
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C)
Acquired Immuno Deficient Syndrome
done
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D)
Acquired Immunity Deficient Syndrome
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question_answer 215) In which method of animal breeding two different species of male and female animals are mated?
A)
Cross-breeding
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B)
Interspecific hybridization
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C)
Out breeding
done
clear
D)
Out crossing
done
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question_answer 216) Ozone hole is measured in
A)
Decibel
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B)
Dobson Units (DU)
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C)
Parts Per Million (PPM)
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D)
Cubic Centimeter
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question_answer 217) The strategy used to prevent the nematode infection in the roots of tobacco plant is called
A)
use of agro chemicals
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B)
bt toxin gene
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C)
gene mutation
done
clear
D)
RNA interference
done
clear
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question_answer 218) Prothallus of Petridophytes is
A)
conspicuous, small, multicellular, free-living, photosynthetic thalloid gametophyte
done
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B)
inconspicuous, small, multicellular, free-living, photosynthetic thalloid gametophyte
done
clear
C)
inconspicuous, large, unicellular, free-living, photosynthetic thalloid gametophyte
done
clear
D)
inconspicuous, small, multcellular, free-living, non-phot.osynthetic thalloid sporophyte
done
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question_answer 219) A process in which shape of chemical compound is changed without breaking of bonds
A)
chemical process
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B)
physical process
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C)
biological process
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D)
enzymatic reaction
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question_answer 220) Classification which is based on evolutionary relationship of various organisms is
A)
artificial classification
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B)
natural classification
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C)
the five kingdom classification
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D)
phylogenetic classification
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question_answer 221) Herbarium sheets are arranged according to the system of classification and should have information about
A)
time and place of collection, English, local and botanical names, phylum, collectors name
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B)
date and time of collection, English, local and botanical names, class, collectors name
done
clear
C)
date and place of collection, English, local and botanical names, order, collectors name
done
clear
D)
date and place of collection, English, local and botanical names, family, collectors name
done
clear
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question_answer 222) The epidermal hairs present on the stem of the plant is called
A)
trichomes
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B)
root hairs
done
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C)
stomata
done
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D)
guard cells
done
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question_answer 223) Which one of the following is the specific xerophytic adaptation?
A)
Presence of spines
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B)
Absence of stomata
done
clear
C)
Presence of long tap root system
done
clear
D)
Presence of stipular leaves
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question_answer 224) The middle part of the small intestine is
A)
duodenum
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B)
jejunum
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C)
ileum
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D)
pyloric region
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question_answer 225) A nucleotide has three components
A)
a nitrogenous base, a hextose sugar and a phosphate group
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B)
a nitrogenous base, a pentose sugar and a phosphate group
done
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C)
a nitrogenous base, a pentose sugar and a bisphosphate group
done
clear
D)
a nitrogenous base, a pentose sugar and a triphosphate group
done
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