question_answer 1) A body is vibrating in simple harmonic motion with an amplitude of 0.06 m and frequency of 15 Hz. The maximum velocity and acceleration of the body is:
A)
9.80 m/s and \[9.03\times {{10}^{2}}m/{{s}^{2}}\]
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B)
8.90 m/s and \[8.21\times {{10}^{2}}m/{{s}^{2}}\]
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C)
6.82 m/s and \[7.62\times {{10}^{2}}m/{{s}^{2}}\]
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D)
5.65 m/s and \[5.32\times {{10}^{2}}m/{{s}^{2}}\]
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question_answer 2) A motor cycle is travelling on a curved track of radius 500 m. If the coefficient of friction between tyres and road is 0.5 with\[g=10\,\,m/{{s}^{2}}\], what should be the maximum speed to avoid skidding?
A)
10 m/s
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B)
50 m/s
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C)
250 m/s
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D)
500 m/s
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question_answer 3) If the equation of motion of standing wave is \[y=0.3\sin \,(314\,t-1.57\,x)\],the velocity of standing wave is :
A)
400 unit
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B)
250 unit
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C)
200 unit
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D)
150 unit
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question_answer 4) On producing the waves of frequency 1000 Hz in a Kundts tube, the total distance between 6 successive nodes is 85 cm. Speed of sound in the gas filled in the tube is :
A)
300 m/s
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B)
350 m/s
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C)
340 m/s
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D)
330 m/s
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question_answer 5) A spring is vibrating with frequency under same mass. If it is cut into two equal pieces and same mass is suspended, then the new frequency will be :
A)
\[n\sqrt{2}\]
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B)
\[\frac{n}{\sqrt{2}}\]
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C)
\[\frac{n}{2}\]
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D)
n
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question_answer 6) Diamagnetic substances are :
A)
strongly repelled by magnets
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B)
feebly repelled by magnets
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C)
feebly attracted by magnets
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D)
strongly attracted by magnets
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question_answer 7) The study of the effects associated with electric field at rest is known as :
A)
electrostatics
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B)
electromagnetism
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C)
magnetostatics
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D)
none of these
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question_answer 8) For driving current of 2 A for 6 min in a circuit, 1000 J of work is to be done. The emf of the source in the circuit is :
A)
1.38V
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B)
1.68V
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C)
2.03V
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D)
3.10V
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question_answer 9) A current carrying wire in the neighbourhood produces :
A)
electric and magnetic fields
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B)
magnetic field only
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C)
no field
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D)
electric field
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question_answer 10) A resonance air column of length 20cm resonates with a tuning fork of frequency 250 Hz. The speed of the air is:
A)
75 m/s
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B)
150 m/s
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C)
200 m/s
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D)
300 m/s
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question_answer 11) An iron rod of length 2 m and cross-sectional area of 50 \[m{{m}^{2}}\]is stretched by 0.5 mm, when a mass of 250 kg is hung from its lower end. Youngs modulus of iron rod is :
A)
\[19.6\times {{10}^{20}}N/{{m}^{2}}\]
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B)
\[19.6\times {{10}^{18}}N/{{m}^{2}}\]
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C)
\[19.6\times {{10}^{10}}N/{{m}^{2}}\]
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D)
\[19.6\times {{10}^{15}}N/{{m}^{2}}\]
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question_answer 12) Frequency of infrared wave is approximately:
A)
1018 Hz
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B)
1014 Hz
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C)
109 Hz
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D)
1016 Hz
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question_answer 13) A wire has resistance of \[3.1\,\,\Omega \] at \[{{30}^{o}}C\] and resistance \[4.5\,\,\Omega \] at \[{{100}^{o}}C\]. The temperature coefficient of resistance of the wire is :
A)
\[{{0.0012}^{o}}{{C}^{-1}}\]
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B)
\[{{0.0024}^{o}}{{C}^{-1}}\]
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C)
\[{{0.0032}^{o}}{{C}^{-1}}\]
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D)
\[{{0.0064}^{o}}{{C}^{-1}}\]
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question_answer 14)
If the current through \[3\,\,\Omega \] resistor is 0.8 A, then potential drop through \[4\,\,\Omega \] resistor is :
A)
1.2V
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B)
2.6V
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C)
4.8 V
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D)
9.6 V
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question_answer 15) The direction of the null points on the equatorial line of a bar magnet, when the north pole of the magnet is pointing to :
A)
west
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B)
east
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C)
south
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D)
north
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question_answer 16)
Two batteries of emf 4 V and 8 V having the internal resistance of \[1\,\,\Omega \] and \[2\,\,\Omega \]. respectively are connected in circuit with a resistance of \[9\,\,\Omega \] as shown in a figure. The current and potential difference between the points P and Q are :
A)
\[\frac{1}{2}\]A and 12 V
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B)
\[\frac{1}{9}\]A and 9 V
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C)
\[\frac{1}{6}\]A and 4 V
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D)
\[\frac{1}{3}\] A and 3 V
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question_answer 17) The dimensions of gravitational constant G are:
A)
\[[M{{L}^{3}}{{T}^{-2}}]\]
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B)
\[[{{M}^{-1}}{{L}^{2}}{{T}^{-2}}]\]
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C)
\[[M{{L}^{-2}}{{T}^{2}}]\]
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D)
\[[{{M}^{-1}}{{L}^{3}}{{T}^{-2}}]\]
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question_answer 18) A 30 g bullet initially travelling at 120 m/s penetrates 12 cm into wooden block. The average resistance exerted by the wooden block is :
A)
1800 N
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B)
2000 N
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C)
2200 N
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D)
2850 N
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question_answer 19) Angle of dip is \[{{90}^{o}}\] at:
A)
equator
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B)
middle point
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C)
poles
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D)
none of these
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question_answer 20) Two magnets each of magnetic moment M are placed so as to form a cross at right angles to each other. The magnetic moment of the system will be :
A)
M
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B)
0.5 M
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C)
V2M
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D)
2M
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question_answer 21) Plate current will be maximum when :
A)
both the grid and anode are negative
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B)
both the grid and anode are positive
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C)
grid is positive and anode is negative
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D)
grid is negative and anode is positive
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question_answer 22) Sodium has body centered packing. Distance between two nearest atoms is 3.7 \[\overset{o}{\mathop{A}}\,\]. The lattice parameter is :
A)
4.9 \[\overset{o}{\mathop{A}}\,\]
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B)
4.3 \[\overset{o}{\mathop{A}}\,\]
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C)
3.8 \[\overset{o}{\mathop{A}}\,\]
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D)
3.4 \[\overset{o}{\mathop{A}}\,\]
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question_answer 23) The instrument used to measure the temperature of the source from its thermal radiation is :
A)
hydrometer
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B)
barometer
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C)
thermopile
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D)
pyrometer
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question_answer 24) Which of the following are not the transverse waves?
A)
Sound waves
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B)
Visible light waves
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C)
X-rays
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D)
y-rays
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question_answer 25) The displacement x of a particle moving along a straight line at time t is given by \[x={{a}_{0}}+{{a}_{1}}\,t+{{a}_{2}}{{t}^{2}}\] The acceleration of the particle is :
A)
\[4\,{{a}_{2}}\]
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B)
\[2\,{{a}_{2}}\]
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C)
\[2\,{{a}_{1}}\]
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D)
\[{{a}_{2}}\]
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question_answer 26) A bomb is dropped from an aeroplane moving horizontally at constant speed. If air resistance is taken into consideration, then the bomb :
A)
falls on earth exactly below the aeroplane
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B)
falls on the earth exactly behind ±e aeroplane
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C)
falls on the earth ahead of the aeroplane
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D)
flies with the aeroplane
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question_answer 27) In a p -type semiconductor germanium is doped with :
A)
aluminium
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B)
boron
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C)
gallium
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D)
all of these
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question_answer 28) Boolean algebra is essentially based on :
A)
numbers
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B)
symbol
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C)
logic
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D)
truth
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question_answer 29) When a bus suddenly takes a turn, the passengers are thrown outwards because of:
A)
speed of motion
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B)
inertia of motion
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C)
acceleration of motion
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D)
none of the above
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question_answer 30) The logic behind NOR gate is that which gives :
A)
high output when both inputs are high
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B)
low output when both inputs are low
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C)
high output when both inputs are low
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D)
none of the above
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question_answer 31) How can the chromatic aberration be corrected?
A)
By providing different suitable curvature to its two surfaces
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B)
By combining it with another lens of opposite nature
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C)
By reducing its aperture
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D)
By providing proper polishing of its two surfaces
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question_answer 32) Which one of the following is not dependent on the intensity of incident photon in a photoelectric experiment?
A)
Work function of the surface
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B)
Number of photoelectrons
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C)
Stopping potential
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D)
Amount of photoelectric current
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question_answer 33) If red light and violet light rays are of focal lengths \[{{f}_{R}}\] and \[{{f}_{V}}\], then which one of the following is true ?
A)
\[{{\lambda }_{R}}\le {{\lambda }_{V}}\]
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B)
\[{{\mu }_{R}}>{{\mu }_{V}}\]
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C)
\[{{\lambda }_{R}}={{\lambda }_{V}}\]
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D)
\[{{\mu }_{R}}<\mu {{\,}_{V}}\]
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question_answer 34) The large scale destruction, that would be caused due to the use of nuclear weapons known as :
A)
neutron reproduction factor
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B)
nuclear holocaust
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C)
thermonuclear reaction
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D)
none of the above
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question_answer 35) If in Ramsdens eyepiece, the field lenses have focal lengths \[{{f}_{1}}\] and \[{{f}_{2}}\] respectively and separated by a distance d then :
A)
\[{{f}_{1}}=3{{f}_{2}}\] and \[d={{f}_{1}}+{{f}_{2}}\]
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B)
\[{{f}_{1}}={{f}_{2}}\] and \[d=\frac{2}{3}{{f}_{1}}\]
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C)
\[{{f}_{1}}=\frac{2}{3}{{f}_{2}}\] and \[d=\frac{2}{3}{{f}_{1}}\]
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D)
\[{{f}_{1}}={{f}_{2}}\] and \[d={{f}_{1}}+{{f}_{2}}\]
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question_answer 36) Huygens wave theory of light could not explain :
A)
photoelectric effect
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B)
polarisation
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C)
diffraction
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D)
interference
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question_answer 37) The rain drops are spherical in shape due to :
A)
residual pressure
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B)
thrust on drop
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C)
surface tension
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D)
viscosity
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question_answer 38) The work done in pulling up a block of wood weighing 2 kN for a length of 10 m on a smooth plane inclined at an angle of \[{{15}^{o}}\] with the horizontal is :
A)
9.82 kJ
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B)
8.91 kJ
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C)
5.17 kJ
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D)
4.36 kJ
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question_answer 39) The thermions are :
A)
positrons
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B)
photons
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C)
electrons
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D)
protons
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question_answer 40) The internal resistance of cell of emf 2 V is\[0.1\,\,\Omega \]. It is connected to a resistance of \[3.9\,\,\Omega \]. The voltage across the cell is :
A)
2.71 V
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B)
1.95 V
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C)
1.68 V
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D)
0.52 V
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question_answer 41) The earth of mass 6 xl024 kg revolves around the sun with an angular velocity of \[2\times {{10}^{-7}}\] rad/s. In a circular orbit of radius \[1.5\times {{10}^{8}}\] km, the force exerted by the sun, on the earth is :
A)
\[27\times {{10}^{39}}N\]
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B)
\[36\times {{10}^{21}}N\]
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C)
\[18\times {{10}^{25}}N\]
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D)
\[6\times {{10}^{19}}N\]
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question_answer 42) A stone is thrown with an initial speed of 4.9 m/s from a bridge in vertically upward direction. It falls down in water after 2 s. The height of the bridge is :
A)
24.7 m
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B)
19.8 m
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C)
9.8m
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D)
4.9m
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question_answer 43) A ball of mass 150 g moving with an acceleration 20 \[m/{{s}^{2}}\] is hit by a force, which acts, on it for 0.1 s. The impulsive force is:
A)
1.2 N-S
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B)
0.3 N-s
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C)
0.1 N-s
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D)
0.5 N-s
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question_answer 44) If the heat of 110 J is added to a gaseous system, whose internal energy is 40 J, then the amount of external work done is :
A)
80 J
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B)
70 J
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C)
115 J
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D)
140 J
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question_answer 45) The substance in which the magnetic moment of a single atom is not zero, is called as :
A)
femmagnetism
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B)
paramagnedsm
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C)
ferromagnetism
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D)
diamagnetism
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question_answer 46) The luminous efficiency of a lamp is 4 lumen/W and its luminous intensity is 30 Cd. The power of lamp is :
A)
60 W
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B)
78 W
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C)
94 W
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D)
136 W
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question_answer 47) The transfer ratio \[\beta \] of a transistor is 50. The input resistance of the transistor when used in the common-emitter configuration is \[1\,k\Omega \]. The peak value of the collector AC current for an AC input voltage of 0.01 V, is :
A)
500 \[\mu A\]
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B)
0.25 \[\mu A\]
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C)
0.01 \[\mu A\]
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D)
100 \[\mu A\]
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question_answer 48) Two vectors \[\vec{A}\] and \[\vec{B}\] are such that \[\vec{A}+\vec{B}=\vec{C}\]and \[{{A}^{2}}+{{B}^{2}}={{C}^{2}}\]. If \[\theta \] is the angle between \[\vec{A}\] and \[\vec{B}\] then correct statement is :
A)
\[\theta =\pi \]
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B)
\[\theta =\frac{2\pi }{3}\]
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C)
\[\theta =0\]
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D)
\[\theta =\frac{\pi }{2}\]
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question_answer 49)
A rough vertical board has an acceleration a along the horizontal, so that a block of mass M pressing against it does not fall. The coefficient of friction between block and the board is:
A)
\[>\frac{a}{g}\]
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B)
\[<\frac{g}{a}\]
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C)
\[=\frac{a}{g}\]
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D)
\[>\frac{g}{a}\]
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question_answer 50) An aeroplane is moving with a horizontal velocity u at a height h. The velocity of packet dropped from it on the earths surface will be:
A)
\[\sqrt{{{u}^{2}}-2g\,h}\]
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B)
\[2\,g\,\,h\]
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C)
\[\sqrt{2\,g\,\,h}\]
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D)
\[\sqrt{{{u}^{2}}+2\,g\,\,h}\]
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question_answer 51) Which of the following having highest number of molecules?
A)
\[16\,g\,{{O}_{2}}\]
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B)
\[14\,g\,{{N}_{2}}\]
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C)
\[2\,g\,{{H}_{2}}\]
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D)
\[6\,g\,{{I}_{2}}\]
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question_answer 52) The size of isoelectronic ions depends on :
A)
ionisation energy
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B)
nuclear charge
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C)
ionic radius
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D)
covalent radius
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question_answer 53) At constant temperature the pressure of a gas is increased to three times, then its volume becomes :
A)
\[\frac{V}{3}\]
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B)
\[\frac{2}{3}V\]
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C)
3V
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D)
none of these
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question_answer 54) Find the temperature of hydrogen gas which has the same velocity as that of oxygen at a temperature of \[{{0}^{o}}C\]:
A)
\[273\div 16\text{ }K\]
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B)
\[273\times 8\text{ }K\]
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C)
\[273\div 32\text{ }K\]
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D)
\[273\times 4\text{ }K\]
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question_answer 55) What is the bond order in case of \[O_{2}^{+}\]?
A)
2.5
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B)
2
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C)
1.5
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D)
3
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question_answer 56) Lindlars catalyst is :
A)
Pd supported over \[BaC{{O}_{3}}\]
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B)
Hg supported over \[PbS{{O}_{4}}\]
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C)
Ni supported over \[CuS{{O}_{4}}\]
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D)
Ni supported over \[CdS{{O}_{4}}\]
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question_answer 57) In \[s{{p}^{3}}\]d-hybridisation, the d-orbital that participate in hybridisation is :
A)
\[dxy\]
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B)
\[dxz\]
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C)
\[d{{x}^{2}}-{{y}^{2}}\]
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D)
\[d{{z}^{2}}\]
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question_answer 58) Which of the following is correct in the reaction? \[{{H}_{2}}(g)+{{I}_{2}}(g)\xrightarrow{{}}2HI(g)\]
A)
\[{{K}_{p}}={{K}_{c}}\]
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B)
\[{{K}_{p}}>{{K}_{c}}\]
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C)
\[{{K}_{p}}<{{K}_{c}}\]
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D)
None of these
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question_answer 59) A \[CaC{{O}_{3}}\] sample contains \[3.01\times {{10}^{23}}\] ions of \[\overset{2+}{\mathop{Ca}}\,\] and \[C{{O}_{3}}^{2-}\]. The mass of sample is:
A)
40
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B)
50
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C)
60
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D)
70
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question_answer 60) The increasing order for the value of charge/mass for electron [e], proton [p], neutron [n] and alpha particle [a] is :
A)
\[e<p<n<\alpha \]
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B)
\[n<p<e<\alpha \]
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C)
\[n<p<\alpha <e\]
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D)
\[n<\alpha <p<e\]
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question_answer 61) The bond order of \[{{O}_{2}}^{-}\] is :
A)
1
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B)
zero
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C)
1.5
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D)
2
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question_answer 62) d and \[l\] tartaric acids are:
A)
enantiomers
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B)
tautomers
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C)
mesomers
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D)
diastereomers
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question_answer 63) In the reaction, \[2C(s)+{{O}_{2}}(g)2CO\,\,(g)\] the partial pressure of CO and \[{{O}_{2}}\] is 8 atm and 4 arm respectively, then find its equilibrium constant:
A)
16
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B)
24
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C)
8
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D)
2
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question_answer 64) Which is the correct electronic configuration of of Cr (chromium)?
A)
\[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{1}}3{{d}^{5}}\]
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B)
\[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{2}}3{{d}^{4}}\]
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C)
\[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{2}}3{{d}^{6}}\]
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D)
\[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{1}}3{{d}^{8}}\]
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question_answer 65) If heat of neutralisation of \[C{{H}_{3}}COOH\] and \[NaOH\] is -50.6 kJ equivalent and the heat of neutralisation of \[N{{H}_{4}}OH\] and \[HCl\] is -51.4 kJ equivalent then the heat of neutralisation of \[C{{H}_{3}}COOH\] and \[N{{H}_{4}}OH\] is:
A)
102 kJ
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B)
-0.8 kJ
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C)
0.8 kJ
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D)
none of these
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question_answer 66) At \[{{25}^{o}}C\,{{K}_{a}}\] for \[C{{H}_{3}}COOH\] is \[1.8\times {{10}^{-5}}\] and \[{{K}_{b}}\] for \[N{{H}_{4}}OH\] is also \[1.8\times {{10}^{-5}}\]. The nature of aqueous solution of \[C{{H}_{3}}COON{{H}_{4}}\] is :
A)
neutral
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B)
basic
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C)
acidic
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D)
amphoteric
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question_answer 67) On bombarding \[_{7}{{N}^{14}}\] with \[\alpha \]-particles, the nuclei of the product formed after the release of a proton is :
A)
\[_{8}{{O}^{17}}\]
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B)
\[_{8}{{O}^{18}}\]
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C)
\[_{9}{{F}^{7}}\]
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D)
\[_{9}{{F}^{18}}\]
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question_answer 68) Coordination number and oxidation number of Cr in \[{{K}_{3}}Cr{{({{C}_{2}}{{O}_{4}})}_{3}}\] are respectively :
A)
6 and +3
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B)
4 and-2
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C)
3 and 0
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D)
3 and +3
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question_answer 69) Thermite is a mixture of:
A)
\[MgO+Al\]
done
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B)
\[F{{e}_{3}}{{O}_{4}}+Al\]
done
clear
C)
\[Zn+CaC{{O}_{3}}\]
done
clear
D)
\[Zn+{{P}_{2}}{{O}_{5}}\]
done
clear
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question_answer 70) Geometrical isomerism is shown by :
A)
done
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B)
done
clear
C)
done
clear
D)
done
clear
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question_answer 71) The oxidation state of sulphur in \[{{H}_{2}}S{{O}_{4}}\]:
A)
+6
done
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B)
+4
done
clear
C)
+2
done
clear
D)
+3
done
clear
View Answer play_arrow
question_answer 72) For detection of sulphur in an. Organic compound, sodium nitroprusside is added to the Lassaignes filtrate the ppt. obtained is :
A)
purple colour
done
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B)
black colour
done
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C)
blood-red colour
done
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D)
white colour
done
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View Answer play_arrow
question_answer 73) Which of the following is correct for\[^{60}Co\xrightarrow{-{{\beta }^{-}}}\]?
A)
\[^{61}Co\]
done
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B)
\[^{60}Ni\]
done
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C)
\[^{59}Ni\]
done
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D)
\[^{60}Cu\]
done
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question_answer 74) Which of the following is not linear?
A)
\[BeC{{l}_{2}}\]
done
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B)
\[HCN\]
done
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C)
\[ZnC{{l}_{2}}\]
done
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D)
\[{{H}_{2}}O\]
done
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question_answer 75) Which of the following compound is optically active?
A)
\[C{{H}_{3}}C{{H}_{2}}COOH\]
done
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B)
\[C{{H}_{3}}CHOHCOOH\]
done
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C)
\[HOOC\,.\,C{{H}_{2}}\,.\,COOH\]
done
clear
D)
\[C{{H}_{3}}\,.\,\,CO\,.\,COOH\]
done
clear
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question_answer 76) The boiling point of phenols are higher than the hydrocarbons of comparable masses due to:
A)
more polarising power
done
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B)
presence of hydrogen bonding
done
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C)
resonance stabilisation
done
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D)
acidic character
done
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question_answer 77)
The product obtained is :
A)
benzoic acid
done
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B)
benzaldehyde
done
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C)
salicylaldehyde
done
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D)
salicylic acid
done
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View Answer play_arrow
question_answer 78) The reduction of aldehyde and ketones to the corresponding hydrocarbons with amalgamated zinc and concentrated \[HCl\] is called :
A)
Wolff- Kishner reduction
done
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B)
Clemmensen reduction
done
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C)
Coupling reduction
done
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D)
Cross- Cannizaro reaction
done
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question_answer 79) The enthalpy and entropy change for a reaction is \[-2.5\times {{10}^{3}}\,cal\] and 7.4 cal \[{{\deg }^{-1}}\]respectively. At 298 K the reaction is:
A)
reversible
done
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B)
irreversible
done
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C)
spontaneous
done
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D)
non-spontaneous
done
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question_answer 80) The energy of an electron in the first Bohr orbit is -13.6 eV, then find the energy of \[H{{e}^{+}}\] in the same Bohr orbit:
A)
27.2 eV
done
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B)
-27.2 eV
done
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C)
54.4 eV
done
clear
D)
-54.4 eV
done
clear
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question_answer 81) Aldehydes and ketones can be distinguished by:
A)
Tollens reagent
done
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B)
2, 4 DNP test
done
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C)
Molisch test
done
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D)
Mullikans test
done
clear
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question_answer 82) The electrical conductance is shown by :
A)
sodium
done
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B)
diamond
done
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C)
graphite
done
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D)
potassium
done
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question_answer 83) The largest number of molecules are present in:
A)
\[5g\,N{{H}_{3}}\]
done
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B)
\[11\,g\,C{{O}_{2}}\]
done
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C)
\[8\,g\,S{{O}_{2}}\]
done
clear
D)
\[4\,g\,{{H}_{2}}\]
done
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question_answer 84) The splitting of spectral lines under the influence of magnetic field is known as :
A)
Zeeman effect
done
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B)
photoelectric effect
done
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C)
Stark effect
done
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D)
electromagnetic effect
done
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View Answer play_arrow
question_answer 85) Write the product: \[\begin{matrix} C{{H}_{2}}OH \\ \begin{align} & | \\ & C{{H}_{2}}OH \\ \end{align} \\ \end{matrix}\xrightarrow{HI{{O}_{4}}}\]
A)
formaldehyde
done
clear
B)
acetaldehyde
done
clear
C)
formic acid
done
clear
D)
acetic acid
done
clear
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question_answer 86) lonizarion energy of hydrogen is :
A)
slightly higher than chlorine
done
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B)
much higher than chlorine
done
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C)
lesser than chlorine
done
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D)
equal to chlorine
done
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question_answer 87) In LPG gas the main constituent of the gas is :
A)
ethane
done
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B)
methane
done
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C)
butane
done
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D)
propane
done
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question_answer 88) Which plays a major role in the formation of complex compound?
A)
Transition metal
done
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B)
Lanthanides and actinides
done
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C)
Representative elements
done
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D)
p-block element
done
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question_answer 89) The conjugate base of \[{{H}_{2}}PO_{4}^{-}\] is :
A)
\[{{H}_{3}}P{{O}_{4}}\]
done
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B)
\[HP{{O}_{4}}^{2-}\]
done
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C)
\[P{{O}_{4}}^{3-}\]
done
clear
D)
\[{{H}_{2}}P{{O}_{3}}^{-}\]
done
clear
View Answer play_arrow
question_answer 90)
The product obtained from :
A)
done
clear
B)
done
clear
C)
done
clear
D)
none of these
done
clear
View Answer play_arrow
question_answer 91) Benzaldehyde on treatment with ethanolic KCN produce :
A)
\[{{C}_{6}}{{H}_{5}}COCO{{C}_{6}}{{H}_{5}}\]
done
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B)
\[{{C}_{6}}{{H}_{5}}CHOHCN\]
done
clear
C)
\[{{C}_{6}}{{H}_{5}}CHOHCOOH\]
done
clear
D)
\[{{C}_{6}}{{H}_{5}}CHOHCO{{C}_{6}}{{H}_{5}}\]
done
clear
View Answer play_arrow
question_answer 92) When aniline is warm with \[CHC{{l}_{3}}\] and ale.\[KOH\], it forms a compound which having offensive smell, the compound formed is :
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
question_answer 93) The formation of large number of compounds of carbon is due to its :
A)
non-metallic nature
done
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B)
catenation character
done
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C)
high ionisation potential
done
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D)
four valency
done
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View Answer play_arrow
question_answer 94) Orthophosphoric acid is :
A)
monobasic
done
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B)
dibasic
done
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C)
tribasic
done
clear
D)
tetrabasic
done
clear
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question_answer 95) The volume strength of 1,5 (N) \[{{H}_{2}}{{O}_{2}}\] solution is:
A)
4.8
done
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B)
8.4
done
clear
C)
3
done
clear
D)
8
done
clear
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question_answer 96) A gas has a vapour density 11.2. The volume occupied by 1 g of gas at NTP is :
A)
1 L
done
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B)
11.2 L
done
clear
C)
22.4 L
done
clear
D)
unpredictable
done
clear
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question_answer 97) What is the rate of a reaction in a first order reaction, if its half life period is 693 s and its concentration is 2 mol/L?
A)
100
done
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B)
0.002
done
clear
C)
0.02
done
clear
D)
200
done
clear
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question_answer 98)
Write the product formed in the reaction : \[(A)\xrightarrow[anhydride]{acetic}(B)\]
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
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question_answer 99) The most radioactive element is :
A)
radium
done
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B)
uranium
done
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C)
polonium
done
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D)
thorium
done
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question_answer 100) A compound contains 38.8% C, 16% H and 45.2% N. The empirical formula of the compound will be :
A)
\[C{{H}_{5}}N\]
done
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B)
\[{{C}_{2}}{{H}_{5}}N\]
done
clear
C)
\[CHN\]
done
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D)
\[C{{H}_{10}}{{N}_{2}}\]
done
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question_answer 101) Malignant tertian malaria is caused by :
A)
Plasmodium falciparum
done
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B)
P. ovale
done
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C)
P. vivax
done
clear
D)
P. malariae
done
clear
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question_answer 102) Agar-agar is extracted from :
A)
Selaginella
done
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B)
Spirogyra
done
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C)
Gelidium
done
clear
D)
Diatoms
done
clear
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question_answer 103) Cause of death during snake bite :
A)
failure of nerves
done
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B)
destruction of RBCs
done
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C)
permanent contraction of muscles
done
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D)
both [a] and [b]
done
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View Answer play_arrow
question_answer 104) The metal ion involved in stomatal regulation is:
A)
Fe
done
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B)
Mg
done
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C)
Zn
done
clear
D)
K
done
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question_answer 105) Oviparous mammals are :
A)
kangaroo
done
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B)
duck billed platypus
done
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C)
whale
done
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D)
rabbit
done
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question_answer 106) Oxygen which is liberated during photosynthesis comes from:
A)
\[C{{O}_{2}}\]
done
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B)
\[{{H}_{2}}O\]
done
clear
C)
phosphoglyceric acid
done
clear
D)
chlorophyll
done
clear
View Answer play_arrow
question_answer 107) In Singer and Nicolson model of plasma membrane/the extrinsic proteins are :
A)
tightly associated with intrinsic protein and can be easily separated
done
clear
B)
loosely associated with intrinsic protein and can be easily separated
done
clear
C)
loosely associated with intrinsic protein and cant be easily separated
done
clear
D)
tightly associated with intrinsic protein and cant be easily separated
done
clear
View Answer play_arrow
question_answer 108) Ribosomes are associated with:
A)
RNA synthesis
done
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B)
protein synthesis
done
clear
C)
enzyme mobilisation
done
clear
D)
DNA synthesis
done
clear
View Answer play_arrow
question_answer 109) Minimata disease caused by water pollution is due to:
A)
lead poisoning
done
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B)
arsenic chloride poisoning
done
clear
C)
mercuric poisoning
done
clear
D)
ammonia pollution
done
clear
View Answer play_arrow
question_answer 110) Abscisic acid controls:
A)
cell elongation and cell wall formation
done
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B)
shoot elongation
done
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C)
leaf fall and dormancy
done
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D)
cell division
done
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View Answer play_arrow
question_answer 111) A material, which arrests cell division is obtained from:
A)
Crocus
done
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B)
Colchicum
done
clear
C)
Delbergia
done
clear
D)
Chrysanthemum
done
clear
View Answer play_arrow
question_answer 112) African sleeping sickness is caused by:
A)
Trypanosoma cruzi by its vector tse-tse fly
done
clear
B)
T. gambiensis by G. palpalis
done
clear
C)
W. bancroftii by sandfly
done
clear
D)
T. solium by eating measly pork
done
clear
View Answer play_arrow
question_answer 113) Syncytial or coenocytic epidermis is associated with:
A)
Hydra
done
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B)
Star fish
done
clear
C)
earthworm
done
clear
D)
Ascaris
done
clear
View Answer play_arrow
question_answer 114) Silver fish is a:
A)
fish
done
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B)
crustacean
done
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C)
cnidarian
done
clear
D)
insect
done
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View Answer play_arrow
question_answer 115) Rhinoceros sp. can be associated with:
A)
Corbett
done
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B)
Runn of Kutch
done
clear
C)
Gir
done
clear
D)
Kaziranga
done
clear
View Answer play_arrow
question_answer 116) Soil carried by gravity is:
A)
alluvial
done
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B)
colluvial
done
clear
C)
elluvial
done
clear
D)
glacial
done
clear
View Answer play_arrow
question_answer 117) Little leaf disease of brinjal is caused by:
A)
mycoplasma
done
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B)
fungus
done
clear
C)
algae
done
clear
D)
virus
done
clear
View Answer play_arrow
question_answer 118) Progesterone is secreted by:
A)
corpus luteum
done
clear
B)
corpus albicans
done
clear
C)
corpus striatum
done
clear
D)
corpus collosum
done
clear
View Answer play_arrow
question_answer 119) Black rust of wheat is caused by:
A)
Rhizopus
done
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B)
Puccinia
done
clear
C)
Yeast
done
clear
D)
Penicillium
done
clear
View Answer play_arrow
question_answer 120) Which is not a Coelenterate?
A)
Polyp
done
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B)
Portuguese man of war
done
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C)
Jellyfish
done
clear
D)
Silver fish
done
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question_answer 121) Pesticides include:
A)
insecticide only
done
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B)
fungicides, herbicides, insecticides nematicides and rodenticides
done
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C)
insecticides, nematicides and rodenticide
done
clear
D)
herbicides insecticides and nematicides
done
clear
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question_answer 122) A new species is formed when:
A)
because of new genie populations organism with new traits are born
done
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B)
exchange of parts between homologous chromosomes takes place
done
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C)
change in the genotype in population leads to sexual isolation
done
clear
D)
the exchange of parts of chromosomes during gametogenesis leads to the formation of new genotype
done
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question_answer 123) Which hormone is used to induce ripening in banana?
A)
Cytokinin
done
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B)
Ethylene
done
clear
C)
ABA
done
clear
D)
\[G{{A}_{3}}\]
done
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View Answer play_arrow
question_answer 124) A new strain for industry produced through biotechnology belongs to;
A)
E. coli
done
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B)
Bacillus subtilis
done
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C)
Pseudomonas putida
done
clear
D)
Saccharomyces cerevisiae
done
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question_answer 125) Closed ancestor to man was:
A)
Neanderthal man
done
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B)
Homo habilis
done
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C)
Cro-magnon man
done
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D)
Australopithecus
done
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View Answer play_arrow
question_answer 126) Prokaryotic DNA is:
A)
double stranded round
done
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B)
single stranded round
done
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C)
double stranded straight
done
clear
D)
double stranded RNA as nucleic acid
done
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View Answer play_arrow
question_answer 127) Klinefelters syndrome is associated with/marked by:
A)
XYY
done
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B)
XXY
done
clear
C)
XO
done
clear
D)
XY
done
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question_answer 128) Primary growth is caused by:
A)
apical meristem
done
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B)
lateral meristem
done
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C)
dermatogen
done
clear
D)
plerome
done
clear
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question_answer 129) Loop of Henie is associated with:
A)
uriniferous tubules
done
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B)
seminiferous tubules
done
clear
C)
neurons
done
clear
D)
muscle fibres
done
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question_answer 130) Botanical name of cauliflower is:
A)
Brassica oleracea var. capitata
done
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B)
Brassica oleracea var. gemmifera
done
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C)
Brassica campestris
done
clear
D)
Brassica oleracea var. botrytis
done
clear
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question_answer 131) Respiratory pigment or oxygen carrier in frogs blood is :
A)
haemocyanin
done
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B)
haemoglobin
done
clear
C)
haemazoin
done
clear
D)
lymphocytes
done
clear
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question_answer 132) An introduction to embryology of angiosperm book was written by:
A)
P.Maheshwari
done
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B)
K.C. Mehta
done
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C)
A.K. Sharma
done
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D)
M.S. Swaminathan
done
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question_answer 133) Cardiac muscles contract:
A)
quickly and they fatigue
done
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B)
quickly and unfatigued
done
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C)
slowly and are not fatigued
done
clear
D)
slowly and they fatigue
done
clear
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question_answer 134) Why Amoeba has been kept in Protozoa?
A)
Due to contractile vacuole
done
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B)
Because of nutrition being insectivorous
done
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C)
Cell wall
done
clear
D)
Unicellular body
done
clear
View Answer play_arrow
question_answer 135) Alimentary canal is not found in:
A)
Arachnida
done
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B)
Apoda
done
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C)
Gastropda
done
clear
D)
Cestoda
done
clear
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question_answer 136) Verticillaster, which is the characteristic of family Labiatae is a type of:
A)
phyllotaxis
done
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B)
inflorescence
done
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C)
placentation
done
clear
D)
venation
done
clear
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question_answer 137) Which one of the following is associated with sex-linked inheritance?
A)
Night-blindness
done
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B)
Muscular dystrophy
done
clear
C)
Astigmatism
done
clear
D)
Colourblindness
done
clear
View Answer play_arrow
question_answer 138) The book Micrographia was written by:
A)
Huxley
done
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B)
Robert Hooke
done
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C)
Fritsch
done
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D)
J.D. Hooker
done
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question_answer 139) Velamen tissues are associated with:
A)
haustorial function
done
clear
B)
assimilation
done
clear
C)
absorption of moisture
done
clear
D)
nutrition
done
clear
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question_answer 140) Significance of Krebs cycle:
A)
synthesis of ATP by oxidative phosphorylation
done
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B)
synthesis of amino acids
done
clear
C)
synthesis of vitamins
done
clear
D)
activates photosynthesis
done
clear
View Answer play_arrow
question_answer 141) A flower characterised by monoadelphous tubular stamens belongs to :
A)
Solanaceae
done
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B)
Liliaceae
done
clear
C)
Malvaceae
done
clear
D)
Brassicaceae
done
clear
View Answer play_arrow
question_answer 142) The upper pigmented part of egg is concerned with :
A)
nourishment
done
clear
B)
camouflage
done
clear
C)
respiration
done
clear
D)
colouration
done
clear
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question_answer 143) Study of relationship between communities and environment is called :
A)
ecology
done
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B)
synecology
done
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C)
autecology
done
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D)
ethology
done
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question_answer 144) The branch of science related with improvement of mankind by genetics is :
A)
human genetics
done
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B)
common genetics
done
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C)
eugenics
done
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D)
heredity
done
clear
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question_answer 145) Biogeochemical cycling means :
A)
cycling of nutrients in an ecosystem
done
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B)
cycling of water
done
clear
C)
cycling of energy in an ecosystem
done
clear
D)
cycling of gases between plants and the atmosphere
done
clear
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question_answer 146) Uric acid is the main excretory product in :
A)
insects
done
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B)
earthworm
done
clear
C)
amphibians
done
clear
D)
mammals
done
clear
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question_answer 147) In plants, respiration takes place :
A)
during day only
done
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B)
during night only
done
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C)
all the 24 hours
done
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D)
at dusk
done
clear
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question_answer 148) Fossils are :
A)
animals living in burrows
done
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B)
remnants of extinct animals and plants
done
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C)
floating organisms
done
clear
D)
fast runners
done
clear
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question_answer 149) Semiconservative replication of DNA was given by:
A)
Watson and Crick
done
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B)
Bateson and Punnet
done
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C)
Messelson and Stahl
done
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D)
Avery, McCarty and MacLeod
done
clear
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question_answer 150) Female hormone is :
A)
progesterone
done
clear
B)
estrogen
done
clear
C)
estradiol
done
clear
D)
all of these
done
clear
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