question_answer 1) Which is true for rolling friction\[({{\mu }_{r}}),\]static friction\[({{\mu }_{s}})\]and kinetic friction\[({{\mu }_{k}})\]?
A)
\[{{\mu }_{s}}>{{\mu }_{k}}>{{\mu }_{r}}\]
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B)
\[{{\mu }_{s}}<{{\mu }_{k}}<{{\mu }_{r}}\]
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C)
\[{{\mu }_{s}}<{{\mu }_{k}}>{{\mu }_{r}}\]
done
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D)
\[{{\mu }_{s}}<{{\mu }_{r}}>{{\mu }_{k}}\]
done
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question_answer 2) Two weights\[{{w}_{1}}\]and\[{{w}_{2}}\]are suspended to the two strings on a frictionless pulley. When the pulley is pulled up with an acceleration g, then the tension in the string is:
A)
\[\frac{4{{w}_{1}}{{w}_{2}}}{{{w}_{1}}+{{w}_{2}}}\]
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B)
\[\frac{{{w}_{1}}{{w}_{2}}}{{{w}_{1}}+{{w}_{2}}}\]
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C)
\[\frac{2{{w}_{1}}{{w}_{2}}}{{{w}_{1}}+{{w}_{2}}}\]
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D)
\[\frac{{{w}_{1}}+{{w}_{2}}}{2}\]
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question_answer 3) Two similar charges having mass m and 2m are placed in an electric field. The ratio of their kinetic energy is:
A)
4:1
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B)
1:1
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C)
2:1
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D)
1:2
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question_answer 4) In a system of units if force (F) acceleration and time (T) are taken as fundamental units, then the dimensional formula of energy is:
A)
\[[F{{A}^{2}}T]\]
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B)
\[[FA{{T}^{2}}]\]
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C)
\[[{{F}^{2}}AT]\]
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D)
\[[FAT]\]
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question_answer 5) If the length of a pendulum is made 9 times and mass of the bob is made 4 times, then the value of time period becomes:
A)
3T
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B)
3/2T
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C)
4T
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D)
2T
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question_answer 6) There are 26 tuning forks arranged in the decreasing order of their frequencies. Each tuning fork gives 3 beats with the next. The first one is octave of the last. What is the frequency of 18th tuning fork?
A)
100 Hz
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B)
99 Hz
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C)
96 Hz
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D)
103 Hz
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question_answer 7) Who discovered X-rays?
A)
Rontgen
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B)
Madam Curie
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C)
Rutherford
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D)
All of these
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question_answer 8) The light rays having photons of energy 1.8 eV are falling on a metal surface having a work function 1.2eV. What is the stopping potential to be applied to stop the emitting electrons?
A)
3eV
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B)
1.2eV
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C)
0.6V
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D)
1.4V
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question_answer 9) A car starts from rest, moves with an acceleration a and then decelerates at a constant rate b for some time to come to rest. If the total time taken is t. The maximum velocity of car is given by:
A)
\[\frac{abt}{(a+b)}\]
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B)
\[\frac{{{a}^{2}}t}{a+b}\]
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C)
\[\frac{at}{(a+b)}\]
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D)
\[\frac{{{b}^{2}}t}{a+b}\]
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question_answer 10) A pendulum is undergoing SHM with frequency\[f\]. What is the frequency of its kinetic energy?
A)
\[f/2\]
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B)
\[2f\]
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C)
\[3f\]
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D)
\[4f\]
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question_answer 11) Two planets are revolving around the earth with velocities\[{{v}_{1}}\]and\[{{v}_{2}}\]and in radii\[{{r}_{1}}\]and\[{{r}_{2}}({{r}_{1}}>{{r}_{2}})\] respectively. Then:
A)
\[{{v}_{1}}={{v}_{2}}\]
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B)
\[{{v}_{1}}>{{v}_{2}}\]
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C)
\[{{v}_{1}}<{{v}_{2}}\]
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D)
\[\frac{{{v}_{1}}}{{{r}_{1}}}=\frac{{{v}_{2}}}{{{r}_{2}}}\]
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question_answer 12) The angular momentum of a rotating body changes from\[{{A}_{0}}\]to\[4{{A}_{0}}\]in 4 min. The torque acting on the body is:
A)
\[\frac{3}{4}{{A}_{0}}\]
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B)
\[4{{A}_{0}}\]
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C)
\[3{{A}_{0}}\]
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D)
\[\frac{3}{2}{{A}_{0}}\]
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question_answer 13) A charge Q is distributed uniformly in a sphere (solid). Then, the electric field at any point r where\[r<R\](r is the radius of sphere) varies as:
A)
\[{{r}^{1/2}}\]
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B)
\[{{r}^{-1}}\]
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C)
\[r\]
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D)
\[{{r}^{-2}}\]
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question_answer 14) A person is observing two trains one coming towards him and other leaving with the same velocity 4 m/s. If their whistling frequencies are 240 Hz each, then the number of beats per second heard by the person will be (if velocity of sound is 320 m/s):
A)
3
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B)
6
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C)
9
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D)
zero
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question_answer 15)
In the given circuit, what will be the equivalent resistance between the points A and B?
A)
\[\frac{10}{3}\Omega \]
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B)
\[\frac{20}{3}\Omega \]
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C)
\[\frac{10}{5}\Omega \]
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D)
\[5\,\Omega \]
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question_answer 16) If the focal length of a lens of a camera is\[5f\]and that of another is\[2.5f,\]what is the time of exposure for the second if for the first one is\[\frac{1}{200}s\]? (where\[f\]is focal length/unit aperture)
A)
\[\frac{1}{200}\]
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B)
\[\frac{1}{800}\]
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C)
\[\frac{1}{6400}\]
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D)
\[\frac{1}{3200}\]
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question_answer 17) If a charge particle enters perpendicularly in the uniform magnetic field, then:
A)
energy and momentum both remains constant
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B)
energy remains constant but momentum changes
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C)
both energy and momentum changes
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D)
energy changes but momentum remains constant
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question_answer 18) Earth is revolving around the sun. If the distance of the earth from the sun is reduced to 1/4th of the present distance, then the length of present day will be reduced by:
A)
1/4
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B)
½
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C)
1/8
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D)
1/6
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question_answer 19) Two rods of same material have same length and area. The heat\[\Delta Q\]flows through them for 12 min when they are joint side by side. If now both the rods are joined in parallel, then the same amount of heat\[\Delta Q\]will flow in:
A)
24 min
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B)
3 min
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C)
12 min
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D)
6 min
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question_answer 20) There are two planets and the radius of the two planets is K but ratio of acceleration due to gravity of both planets is g. What will be the ratio of their escape velocity?
A)
\[{{(Kg)}^{1/2}}\]
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B)
\[{{(Kg)}^{-1/2}}\]
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C)
\[{{(Kg)}^{2}}\]
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D)
\[{{(Kg)}^{-2}}\]
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question_answer 21) In the reaction given below \[_{86}{{A}^{222}}{{\xrightarrow{{}}}_{84}}{{B}^{210}}\]how many a and p-particles are emitted?
A)
\[6\alpha ,3\beta \]
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B)
\[3\alpha ,4\beta \]
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C)
\[4\alpha ,3\beta \]
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D)
\[3\alpha ,6\beta \]
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question_answer 22) If a spherical ball rolls on a table without slipping the fraction of its total energy associated with rotational energy is:
A)
\[\frac{3}{5}\]
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B)
\[\frac{2}{7}\]
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C)
\[\frac{2}{5}\]
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D)
\[\frac{3}{7}\]
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question_answer 23) The equation of stationary wave along a stretched string is given by\[y=5\sin \frac{\pi x}{3}\cos 40\pi t,\]where\[x\]and y are in cm and t in second. The separation between two adjacent nodes is:
A)
1.5cm
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B)
3 cm
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C)
6 cm
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D)
4 cm
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question_answer 24) Which of the following is not an inelastic collision?
A)
A man jump on a cart
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B)
A bullet embedded in a block
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C)
Collision of two glass ball
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D)
None of the above
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question_answer 25) If a convex lens of focal length 80 cm and a concave lens of focal length 50 cm are combined together, what will be their resultant power?
A)
\[+0.65D\]
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B)
\[-\,0.65D\]
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C)
\[+0.75D\]
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D)
\[-\,0.75D\]
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question_answer 26) The phenomenon of radioactivity is :
A)
exothermic change which increases or decreases with temperature
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B)
increases on applied pressure
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C)
nuclear process does not depend on external factors
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D)
none of the above
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question_answer 27) A perfect gas is found to obey the relation\[P{{V}^{3/2}}=\] constant during an adiabatic process, if such a gas initially at a temperature T, is compressed to half of its initial volume, then its final temperature will be:
A)
2T
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B)
4T
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C)
\[{{(2)}^{1/2}}T\]
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D)
\[2{{(2)}^{1/2}}T\]
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question_answer 28) The amplification factor of a triode valve is 15. If the grid voltage is changed by 0.3V, the change in plate voltage in order to keep the current constant (in volt) is:
A)
0.02
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B)
0.002
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C)
4.5
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D)
5.0
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question_answer 29) A uniform wire of length\[l\]and having resistance R is cut into n equal parts and all parts are connected in parallel, then the equivalent resistance will be:
A)
\[R\]
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B)
\[R/n\]
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C)
\[R/{{n}^{2}}\]
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D)
\[{{n}^{2}}R\]
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question_answer 30) In isothermal process, which of the following is not true?
A)
Temperature remains constant
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B)
Internal energy does not change
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C)
No heat enters or leaves the system
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D)
None of the above
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question_answer 31) A force F is given by\[F=at+b{{t}^{2}},\]where t is time. What are the dimensions of a and b?
A)
\[[ML{{T}^{-1}}]\]and\[[ML{{T}^{0}}]\]
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B)
\[[ML{{T}^{-3}}]\]and\[[M{{L}^{2}}{{T}^{4}}]\]
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C)
\[[ML{{T}^{-4}}]\]and\[[ML{{T}^{1}}]\]
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D)
\[[ML{{T}^{-3}}]\]and\[[ML{{T}^{-4}}]\]
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question_answer 32) In an L-C-R circuit, the capacitance is made 1/4, then what should be change in inductance, so that the circuit remains in resonance?
A)
8 times
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B)
1/4 times
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C)
c) 2 rimes
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D)
4 times
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question_answer 33) A plane glass slab is kept over various colour letters, the letter which appears least raised is:
A)
red
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B)
violet
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C)
green
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D)
blue
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question_answer 34) A convex lens forms a full image of the object on a screen. If half of the lens is covered with an opaque object, then:
A)
the image disappears
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B)
half of the image is seen
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C)
full image is seen and of same intensity
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D)
full image is seen and of decreased intensity
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question_answer 35) A river is flowing from west to east with a speed of 5 m/min. A man can swim in still water with a velocity 10 m/min. In which direction should the man swim so as to take the shortest possible path to go to the south?
A)
\[30{}^\circ \]east of south
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B)
\[60{}^\circ \]east of south
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C)
\[60{}^\circ \]west of south
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D)
\[30{}^\circ \]west of north
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question_answer 36) Two waves of intensity\[I\]undergo interference. The maximum intensity obtained is:
A)
\[\frac{I}{2}\]
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B)
\[I\]
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C)
\[2I\]
done
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D)
\[4I\]
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question_answer 37) The time taken by light to pass through 4 mm thick glass slab of refractive index 1.5 will be: (velocity of light in air\[=3\times {{10}^{8}}m/s\])
A)
\[8\times {{10}^{-11}}s\]
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B)
\[2\times {{10}^{-11}}s\]
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C)
\[8\times {{10}^{-8}}s\]
done
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D)
\[2\times {{10}^{-8}}s\]
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question_answer 38) A lens acts as converging in air and diverging when immersed in water. Then, refractive index of lens is:
A)
equal to unity
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B)
below 1.33
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C)
greater than 1.33
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D)
less than unity
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question_answer 39) A light passing through air has wavelength \[6000\overset{\text{o}}{\mathop{\text{A}}}\,\]. The wavelength when same ray passes through a glass slab of refractive index 1.5 will be:
A)
\[2000\overset{\text{o}}{\mathop{\text{A}}}\,\]
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B)
\[4000\overset{\text{o}}{\mathop{\text{A}}}\,\]
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C)
\[8000\overset{\text{o}}{\mathop{\text{A}}}\,\]
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D)
\[1200\overset{\text{o}}{\mathop{\text{A}}}\,\]
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question_answer 40) Which of the following have highest specific charge?
A)
Positron
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B)
Proton
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C)
He
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D)
None of these
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question_answer 41) Four identical rods are stretched by same force. Maximum extension is produced in:
A)
\[l=10cm,D=1\text{ }mm\]
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B)
\[l=100\text{ }cm,\text{ }D=2mm\]
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C)
\[l=200\text{ }cm,\text{ }D=3\text{ }mm\]
done
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D)
\[l=300\text{ }cm,\text{ }D=4\text{ }mm\]
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question_answer 42) Two bulbs rated 200 W, 220 V and 100 W, 220 V are connected in series. Combination is connected to 220 V supply. Power consumed by the circuit is?
A)
80 W
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B)
67 W
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C)
76 W
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D)
65 W
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question_answer 43) In a full-wave rectifier, input AC current has a frequency v. The output frequency of current is:
A)
\[\frac{v}{2}\]
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B)
\[v\]
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C)
\[2v\]
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D)
none of these
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question_answer 44) In heat engine sink is fitted at temperature \[27{}^\circ C\]and heat of 100 kcal is taken from source at temperature\[677{}^\circ C\]. Work done in is:
A)
0.28
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B)
2.8
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C)
28
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D)
0.028
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question_answer 45) What is the angle between\[\overrightarrow{A}=5\hat{i}-5\hat{j}\]and\[\overrightarrow{B}=5\hat{i}-5\hat{j}\]?
A)
\[90{}^\circ \]
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B)
\[45{}^\circ \]
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C)
Zero
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D)
\[60{}^\circ \]
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question_answer 46) Two waves having sinusoidal waveforms have different wavelengths and different amplitudes. They will be having:
A)
same pitch and different intensity
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B)
same quality and different intensity
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C)
different quality and different intensity
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D)
same quality and different pitch
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question_answer 47) The turn ratio of a transformer is given as 2:3. If the current through the primary coil is 3 A, thus calculate the current through load resistance:
A)
1A
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B)
4.5 A
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C)
2 A
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D)
1.5A
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question_answer 48) Two inductors each of inductance L are joined in parallel. What is their equivalent inductance?
A)
Zero
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B)
\[2L\]
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C)
\[\frac{L}{2}\]
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D)
\[L\]
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question_answer 49) Radius of first Bohr orbit is r. What is the radius of second Bohr orbit?
A)
8r
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B)
2r
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C)
4r
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D)
\[2\sqrt{2}r\]
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question_answer 50) Two equal -ve charge -q are fixed at the point (0, a) and (0,-a) on the y-axis. A positive charge Q is released from rest at the point (2a, 0) on the\[x-\]axis. The charge will:
A)
execute SHM about the origin
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B)
move to the origin and remain at rest
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C)
c) move to infinity
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D)
execute oscillatory but not SHM
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question_answer 51) What is the formula of bleaching powder?
A)
\[CaO(OCl)\]
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B)
\[Ca(OCl)Cl\]
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C)
\[Ca{{(OCl)}_{2}}\]
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D)
\[Ca{{(OCl)}_{2}}Cl\]
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question_answer 52) By which one of the following compounds both\[C{{H}_{4}}\]and\[C{{H}_{3}}C{{H}_{3}}\]can be prepared in one step?
A)
\[C{{H}_{3}}I\]
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B)
\[C{{H}_{3}}OH\]
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C)
\[C{{H}_{3}}C{{H}_{2}}I\]
done
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D)
\[{{C}_{2}}{{H}_{5}}OH\]
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question_answer 53) \[RNHCOH\xrightarrow[pyridine]{POC{{l}_{3}}}product\] In the given reaction, what will be the product?
A)
\[RN==C==O\]
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B)
\[R\overset{+}{\mathop{N}}\,\equiv \equiv {{C}^{-}}\]
done
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C)
\[RC\equiv \equiv N\]
done
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D)
None of the above
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question_answer 54) \[A+BC+D\]. If initially the concentration of A and B are both equal but at equilibrium, concentration of D will be twice of that of A, then what will be the equilibrium constant of reaction?
A)
\[\frac{4}{9}\]
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B)
\[\frac{9}{4}\]
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C)
\[\frac{1}{9}\]
done
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D)
4
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question_answer 55) Which of the following is secondary pollutant?
A)
\[C{{O}_{2}}\]
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B)
\[{{N}_{2}}O\]
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C)
PAN
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D)
\[S{{O}_{2}}\]
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question_answer 56) The geometry of\[Ni{{(CO)}_{4}}\]and\[Ni(PP{{h}_{3}})C{{l}_{2}}\]are:
A)
both square planar
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B)
tetrahedral and square planar respectively
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C)
both tetrahedral
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D)
square planar and tetrahedral respectively
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question_answer 57) Cr is member of 3d transition series of atomic number 24. What will be its electronic configuration?
A)
\[[Ar]3{{d}^{6}}\,4{{s}^{2}}\]
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B)
\[[Ar]3{{d}^{5}}\,4{{s}^{2}}\]
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C)
\[[Ar]3{{d}^{4}}\,4{{s}^{2}}\]
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D)
\[[Ar]\,3{{d}^{5}}\,4{{s}^{1}}\]
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question_answer 58) Which of the following compounds is carborundum?
A)
\[A{{l}_{2}}{{O}_{3}}\]
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B)
\[Si{{O}_{2}}\]
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C)
\[SiC\]
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D)
\[Sn{{O}_{2}}\]
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question_answer 59) What amount of \[C{{l}_{2}}\]gas liberated at anode, if 1 A current is passed for 30 min from\[NaCl\]solution?
A)
0.66 mol
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B)
0.33 mol
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C)
0.66 g
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D)
0.33 g
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question_answer 60) Certain crystals produce electric signals on application of pressure. This phenomenon is called:
A)
pyroelectricity
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B)
ferroelectricity
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C)
piezoelectricity
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D)
femelectricity
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question_answer 61) Aspirin is:
A)
antipyretic
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B)
tranquilizer
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C)
narcotic
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D)
an aesthetic
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question_answer 62) Which of the following is not a property of liquid state?
A)
Intermolecular force of attraction in a liquid is quite large
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B)
All liquids accompanied by cooling on evaporation
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C)
Lower the boiling point of a liquid, greater is its vapour pressure at room temperature
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D)
A liquid boils at high temperature at the top of a mountain than at the sea level
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question_answer 63) In Williamson's synthesis, ethoxyethane is prepared by:
A)
passing ethanol over heated alumina
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B)
heating sodium ethoxide with ethyl bromide
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C)
treating ethyl alcohol with excess of \[{{H}_{2}}S{{O}_{4}}\]at 430-440 K
done
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D)
heating ethanol with dry\[A{{g}_{2}}O\]
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question_answer 64) If for a sucrose solution, elevation in boiling point is\[0.1{}^\circ C,\] then what will be the boiling point of\[NaCl\]solution for same molal concentration?
A)
\[0.1{}^\circ C\]
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B)
\[0.2{}^\circ C\]
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C)
\[0.08{}^\circ C\]
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D)
\[0.01{}^\circ C\]
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question_answer 65) Which of the following have maximum number of unpaired electrons?
A)
\[F{{e}^{3+}}\]
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B)
\[F{{e}^{2+}}\]
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C)
\[C{{o}^{2+}}\]
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D)
\[C{{o}^{3+}}\]
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question_answer 66) Which of the following statements is false?
A)
\[CaOC{{l}_{2}}\]gives\[O{{H}^{-}},\text{ }C{{l}^{-}}\]and\[OC{{l}^{-}}\]in aqueous solution
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B)
Diamond and graphite are allotropes of carbon
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C)
Bleaching action of\[C{{l}_{2}}\]in moist condition is not permanent
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D)
Calomel is\[H{{g}_{2}}C{{l}_{2}}\]
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question_answer 67) What will be the order of\[{{I}^{st}}\]ionisation energy?
A)
\[Li>Na>K\]
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B)
\[K>Li>Na\]
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C)
\[Na>Li>K\]
done
clear
D)
\[Li>K>Na\]
done
clear
View Answer play_arrow
question_answer 68) The element\[_{90}T{{h}^{232}}\]belongs to thorium series. Which of the following will act as the end product of the series?
A)
\[_{82}P{{b}^{208}}\]
done
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B)
\[_{82}B{{i}^{209}}\]
done
clear
C)
\[_{82}P{{b}^{206}}\]
done
clear
D)
\[_{82}P{{b}^{207}}\]
done
clear
View Answer play_arrow
question_answer 69)
What will be the product in the following reaction?
A)
done
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B)
done
clear
C)
done
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D)
done
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View Answer play_arrow
question_answer 70) Given pH of a solution A is 3 and it is mixed with another solution B having pH 2. If both mixed, then resultant pH of the solution will be:
A)
3.2
done
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B)
1.9
done
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C)
3.4
done
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D)
3.5
done
clear
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question_answer 71) With which of the given pairs\[C{{O}_{2}}\]resembles in structure?
A)
\[HgC{{l}_{2}},{{C}_{2}}{{H}_{2}}\]
done
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B)
\[HgC{{l}_{2}},SnC{{l}_{2}}\]
done
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C)
\[{{C}_{2}}{{H}_{2}},N{{O}_{2}}\]
done
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D)
\[{{N}_{2}}O\]and\[N{{O}_{2}}\]
done
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View Answer play_arrow
question_answer 72) If magnetic quantum number of a given atom is represented by -3, then what will be its principal quantum number?
A)
2
done
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B)
3
done
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C)
4
done
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D)
5
done
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question_answer 73) Which of the following will show geometrical isomerism?
A)
But-1-ene
done
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B)
But-2-ene
done
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C)
2, 3-dichlorobutane
done
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D)
Ethene
done
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View Answer play_arrow
question_answer 74)
What will be the IUPAC name of given compound?
A)
2, 5-diethyl-4-methylhexane
done
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B)
3, 4, 6-trimethyloctane
done
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C)
2, 5, 6-trimethyloctane
done
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D)
3, 5-dimethyl-6-ethylheptane
done
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View Answer play_arrow
question_answer 75) A mixture of camphor and benzoic acid can be separated by:
A)
chemical method
done
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B)
sublimation
done
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C)
fractional distillation
done
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D)
extraction with a solvent
done
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View Answer play_arrow
question_answer 76) HCHO reacts with\[C{{H}_{3}}MgI\]to give:
A)
\[C{{H}_{3}}C{{H}_{2}}OH\]
done
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B)
\[C{{H}_{3}}OH\]
done
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C)
\[C{{H}_{3}}C{{H}_{2}}I\]
done
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D)
\[C{{H}_{3}}I\]
done
clear
View Answer play_arrow
question_answer 77) \[\underset{CH}{\overset{CH}{\mathop{|||}}}\,\] reacts with acetic acid in presence of \[H{{g}^{2+}}\]to give:
A)
\[\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{CH{{(C{{H}_{3}}COO)}_{2}}}}\,\]
done
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B)
\[\overset{\begin{smallmatrix} CH{{(C{{H}_{3}}COO)}_{2}} \\ | \end{smallmatrix}}{\mathop{CH{{(C{{H}_{3}}COO)}_{2}}}}\,\]
done
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C)
\[\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C{{H}_{2}}(C{{H}_{3}}COO)}}\,\]
done
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D)
none of these
done
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View Answer play_arrow
question_answer 78) Which of the following have high electron affinity?
A)
F
done
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B)
\[Cl\]
done
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C)
N
done
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D)
\[O\]
done
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View Answer play_arrow
question_answer 79) Which among the following is strongest acid?
A)
\[H(ClO){{O}_{2}}\]
done
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B)
\[H(ClO){{O}_{3}}\]
done
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C)
\[H(ClO)O\]
done
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D)
\[H(ClO)\]
done
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View Answer play_arrow
question_answer 80) Which of the following amino acid is optically inactive?
A)
Phenyl alanine
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B)
Glycine
done
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C)
Glutamic acid
done
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D)
Asparagine
done
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View Answer play_arrow
question_answer 81) Glucose has difference from fructose in that it:
A)
does not undergo hydrolysis
done
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B)
gives silver mirror with Tollen's reagent
done
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C)
monosaccharide
done
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D)
none of the above
done
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View Answer play_arrow
question_answer 82) Which of the following gives correct arrangement of compounds involved based on their bond strength?
A)
\[HF>HCl>HBr>HI\]
done
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B)
\[HI>HBr>HCl>HF\]
done
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C)
\[HF>HBr>HCl>HI\]
done
clear
D)
\[HCl>HF>HBr>HI\]
done
clear
View Answer play_arrow
question_answer 83) The enthalpy of combustion at\[25{}^\circ C\]of\[{{H}_{2}},\] cyclohexane\[({{C}_{6}}{{H}_{12}})\]and cyclohexene\[({{C}_{6}}{{H}_{10}})\] \[({{C}_{6}}{{H}_{10}})\]are - 241, - 3920 and - 3800 kJ/mol respectively. The heat of hydrogenation of cyclohexene is:
A)
-121 kJ/mol
done
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B)
+121 kJ/mol
done
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C)
-242 kJ/mol
done
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D)
+242 kJ/mol
done
clear
View Answer play_arrow
question_answer 84) The entropy values (in\[J{{K}^{-1}}mo{{l}^{-1}}\]) of\[{{H}_{2}}(g)=130.6,\text{ }C{{l}_{2}}(g)=223.0\]and \[HCl(g)=\] 186.7 at 298 K and 1 atm pressure. Then entropy change for the reaction. \[{{H}_{2}}(g)+C{{l}_{2}}(g)\xrightarrow[{}]{{}}2HCl(g)\]is:
A)
+540.3
done
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B)
+727.3
done
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C)
\[-166.9\]
done
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D)
+19.8
done
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View Answer play_arrow
question_answer 85) A certain sample of gas has a volume of 0.2 L measured at 1 atm pressure and\[0{}^\circ C\]. At the same pressure but\[273{}^\circ C,\] its volume will be:
A)
0.4 L
done
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B)
0.8 L
done
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C)
27.8 L
done
clear
D)
55.6 L
done
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question_answer 86) Hardness of water is due to presence of salts of:
A)
\[N{{a}^{-}}\]and\[{{K}^{+}}\]
done
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B)
\[C{{a}^{2+}}\]and\[M{{g}^{2+}}\]
done
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C)
\[C{{a}^{2+}}\] and\[{{K}^{+}}\]
done
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D)
\[C{{a}^{2+}}\]and\[N{{a}^{+}}\]
done
clear
View Answer play_arrow
question_answer 87) Total number of atoms represented by the compound\[CuS{{O}_{4}}.5{{H}_{2}}O\]is:
A)
27
done
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B)
21
done
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C)
5
done
clear
D)
8
done
clear
View Answer play_arrow
question_answer 88) The half-life of a first order reaction having rate constant\[k=1.7\times {{10}^{-5}}{{s}^{-1}}\]is:
A)
12.1 h
done
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B)
9.7 h
done
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C)
11.3 h
done
clear
D)
1.8 h
done
clear
View Answer play_arrow
question_answer 89) Which one of the following contain isopropyl group?
A)
2, 2, 3, 3-tetramethylpentane
done
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B)
2-methylpentane
done
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C)
2, 2, 3-trimethylpentane
done
clear
D)
3, 3-dimethylpentane
done
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View Answer play_arrow
question_answer 90) When electrons are trapped into the crystal in anion vacancy, the defect is known as:
A)
Schottky defect
done
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B)
Frenkel defect
done
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C)
stoichiometric defect
done
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D)
F-centres
done
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question_answer 91) The ratio of charge and mass would be greater for:
A)
proton
done
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B)
electron
done
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C)
neutron
done
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D)
alpha
done
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View Answer play_arrow
question_answer 92) Transition metals show paramagnetism due to:
A)
characteristic configuration
done
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B)
high lattice energy
done
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C)
variable oxidation states
done
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D)
unpaired electrons
done
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question_answer 93) Duma's method involves the determination of nitrogen content in the organic compound in the form of:
A)
\[N{{H}_{3}}\]
done
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B)
\[{{N}_{2}}\]
done
clear
C)
\[NaCN\]
done
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D)
\[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\]
done
clear
View Answer play_arrow
question_answer 94) Which of the following is optically active?
A)
Butane
done
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B)
4-methyl heptane
done
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C)
3-methyl heptane
done
clear
D)
2-methyl heptane
done
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View Answer play_arrow
question_answer 95) Which of the following is a chiral carbon?
A)
\[C{{H}_{4}}\]
done
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B)
\[C{{H}_{3}}I\]
done
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C)
\[C{{H}_{2}}C{{l}_{2}}\]
done
clear
D)
\[CHIBrCl\]
done
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View Answer play_arrow
question_answer 96) The correct order of hybridisation of the central atom in the following species: \[N{{H}_{3}},{{[PtC{{l}_{4}}]}^{2-}},PC{{l}_{5}}\]and\[BC{{l}_{3}}\]is:
A)
\[ds{{p}^{2}},\text{ }ds{{p}^{3}},\text{ }s{{p}^{2}},\text{ }s{{p}^{3}}\]
done
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B)
\[s{{p}^{3}},\ ds{{p}^{2}},s{{p}^{3}},s{{p}^{2}}\]
done
clear
C)
\[ds{{p}^{2}},\text{ }s{{p}^{2}},\text{ }s{{p}^{3}},\text{ }ds{{p}^{3}}\]
done
clear
D)
\[ds{{p}^{2}},\text{ }s{{p}^{3}},\text{ }s{{p}^{2}},\text{ }s{{p}^{3}}\]
done
clear
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question_answer 97) Unit of mole fraction is:
A)
mol-L
done
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B)
\[mol/{{L}^{2}}\]
done
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C)
mol/L
done
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D)
dimensionless
done
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View Answer play_arrow
question_answer 98) The equivalent weight of phosphoric acid\[({{H}_{3}}P{{O}_{4}})\]in the reaction: \[NaOH+{{H}_{2}}P{{O}_{4}}\xrightarrow{{}}Na{{H}_{2}}P{{O}_{4}}+{{H}_{2}}O\]is:
A)
59
done
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B)
49
done
clear
C)
25
done
clear
D)
98
done
clear
View Answer play_arrow
question_answer 99) The reaction of\[HBr\]with \[C{{H}_{3}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}\,=C{{H}_{2}}\]in the presence of peroxide will give:
A)
\[\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C{{H}_{3}}CBrC{{H}_{3}}}}\,\]
done
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B)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}Br\]
done
clear
C)
\[\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C{{H}_{3}}CHC{{H}_{2}}Br}}\,\]
done
clear
D)
\[\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C{{H}_{3}}C{{H}_{2}}CHC{{H}_{3}}}}\,\]
done
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View Answer play_arrow
question_answer 100) DDT is prepared by reacting chlorobenzene with:
A)
\[CHC{{l}_{3}}\]
done
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B)
\[CC{{l}_{3}}CHO\]
done
clear
C)
\[CC{{l}_{4}}\]
done
clear
D)
\[{{C}_{2}}{{H}_{6}}\]
done
clear
View Answer play_arrow
question_answer 101) Carapace is present on the dorsal surface of:
A)
elephant
done
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B)
tortoise
done
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C)
python
done
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D)
alligator
done
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question_answer 102) Exoskeleton is absent in:
A)
scoliodon
done
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B)
frog
done
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C)
rabbit
done
clear
D)
fowl
done
clear
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question_answer 103) 'Heart of heart' is:
A)
SA node
done
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B)
AV node
done
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C)
bundle of His
done
clear
D)
Purkinje fibres
done
clear
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question_answer 104) Which of the following is phagocylic?
A)
Monocyte
done
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B)
RBC
done
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C)
Eosinophil
done
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D)
Basophil
done
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question_answer 105) Small fish get stuck near the bottom of a shark and derives its nutrition from it. This kind of association is called as:
A)
antibiosis
done
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B)
commensalism
done
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C)
predation
done
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D)
parasitism
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question_answer 106) Intercalated disc is found in :
A)
muscles of heart
done
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B)
vertebrae
done
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C)
muscles of legs
done
clear
D)
public symphysis
done
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question_answer 107) Which of following is 'immortal'?
A)
Somatic cell
done
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B)
Glomerular cells
done
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C)
Germ cells
done
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D)
Cells of pituitary
done
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question_answer 108) Nerve cell do not divide because they do not have :
A)
nucleus
done
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B)
centrosome
done
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C)
Golgi body
done
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D)
mitochondria
done
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View Answer play_arrow
question_answer 109) During strenous exercise, glucose is converted into :
A)
glycogen
done
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B)
pyruvic acid
done
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C)
starch
done
clear
D)
lactic add
done
clear
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question_answer 110) 'AIDS' is due to :
A)
destruction of killer-T-cells
done
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B)
destruction of helper-T-tells
done
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C)
lack of interferons
done
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D)
autoimmunity
done
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question_answer 111) 'Adaptation' of eyes in dark is due to :
A)
depletion of vision pigment in rod
done
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B)
depletion of vision pigment in cones
done
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C)
repletion of vision pigment in rods
done
clear
D)
repletion of vision pigment in cones
done
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View Answer play_arrow
question_answer 112) Sea gulls excrete excess of Na CI from:
A)
liver
done
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B)
lungs
done
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C)
nasal cavity
done
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D)
kidney
done
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View Answer play_arrow
question_answer 113) Tree of life is :
A)
arbor vitae
done
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B)
pons varolii
done
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C)
organ of Corti
done
clear
D)
diencephalon
done
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question_answer 114) Thousands of years old mummies are still in their condition as they were before due to the non destruction of:
A)
yellow elastin fibres
done
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B)
white elasrin fibres
done
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C)
collagen fibres
done
clear
D)
veins
done
clear
View Answer play_arrow
question_answer 115) Which of the following is correctly matched ?
A)
Wallago attu ?Lachi
done
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B)
Tengra ?Carp
done
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C)
Catla-catia ?Cat fish
done
clear
D)
Pqyas ?Carp
done
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question_answer 116) Two animal cells are interconnected by:
A)
plasmodesmata
done
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B)
cell wall
done
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C)
desmosomes
done
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D)
plasma membrane
done
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View Answer play_arrow
question_answer 117) Which of the following vitamins is water soluble as well as an anti-oxidant ?
A)
Vitamin-\[{{B}_{1}}\]
done
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B)
Vitamin-A
done
clear
C)
Vitamin-D
done
clear
D)
Vitamin-C
done
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View Answer play_arrow
question_answer 118) Which of the following amino acids is not optically active?
A)
Glycine
done
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B)
Valine
done
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C)
Leucine
done
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D)
Isoleucine
done
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question_answer 119) Human ear ossicles are :
A)
incus and stapes
done
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B)
scapes
done
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C)
incus, malleus and scapes
done
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D)
incus and malleus
done
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question_answer 120) Transposons are:
A)
house-keeping genes
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B)
jumping genes
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C)
transponing genes
done
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D)
stationary genes
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View Answer play_arrow
question_answer 121) The biogenetic law of Haeckel is :
A)
Omnis vivum-e-vivum
done
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B)
Omnis cellula-e-cellula
done
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C)
ontogeny repeats phylogeny
done
clear
D)
phytogeny repeats ontogeny
done
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View Answer play_arrow
question_answer 122) FSH is secreted by :
A)
anterior lobe of pituitary,
done
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B)
hypothalamus
done
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C)
gonads
done
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D)
posterior lobe of pituitary
done
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View Answer play_arrow
question_answer 123) Tube feet is the locomotory organ in:
A)
starfish
done
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B)
jelly fish
done
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C)
silver fish
done
clear
D)
scoliodon
done
clear
View Answer play_arrow
question_answer 124) Flame cells are excretory organ of:
A)
Planaria
done
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B)
Hydra
done
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C)
Hydrilla
done
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D)
Cockroach
done
clear
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question_answer 125) Which of the following is not done in a wild life sanctuary ?
A)
Fauna is conserved
done
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B)
Flora is conserved
done
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C)
Soil and flora is utilized
done
clear
D)
Hunting is prohibited
done
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question_answer 126) Sciatic vein of frog opens in :
A)
heart
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B)
kidney
done
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C)
pelvic region
done
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D)
liver
done
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question_answer 127) Which of the following is important for muscle contraction and nerve impulse transmission?
A)
\[C{{a}^{2+}}ions\]
done
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B)
\[C{{a}^{2+}}\]and \[M{{g}^{2+}}ions\]
done
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C)
\[M{{g}^{2+}}ions\]
done
clear
D)
\[F{{e}^{2+}}ions\]
done
clear
View Answer play_arrow
question_answer 128) Which of the following is a respiratory disease ?
A)
Polio
done
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B)
Arithrit is
done
clear
C)
Asthma
done
clear
D)
Cancer
done
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View Answer play_arrow
question_answer 129) The extra structure that provides nutrition to the embryo is :
A)
umbilicus
done
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B)
amnion
done
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C)
chorion
done
clear
D)
placenta
done
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View Answer play_arrow
question_answer 130) Heparin is synthesized in :
A)
liver
done
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B)
kidney
done
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C)
saliva
done
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D)
pancreas
done
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question_answer 131) T-cells and B-cells are :
A)
lymphocytes
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B)
RBCs
done
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C)
natural killer cells
done
clear
D)
none of the above
done
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View Answer play_arrow
question_answer 132) Human ancestors who left cave paintings were :
A)
Neanderthal man
done
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B)
Cro-magnon man
done
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C)
Java ape man
done
clear
D)
Peking man
done
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question_answer 133) Entamoeba hisiolytica differs from Amoeba in absence of:
A)
pseudopodia
done
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B)
contractile vacuole
done
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C)
nucleus
done
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D)
ectoplasm
done
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View Answer play_arrow
question_answer 134) Aspirin is a/an:
A)
antibiotic
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B)
antipyretic
done
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C)
antiseptic
done
clear
D)
none of these
done
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question_answer 135) Bulls semen is stored in :
A)
liquid\[C{{O}_{2}}\]
done
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B)
liquid \[{{O}_{2}}\]
done
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C)
liquid \[{{N}_{2}}\]
done
clear
D)
ice
done
clear
View Answer play_arrow
question_answer 136) Which of the following have notochord if throughout life?
A)
Birds
done
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B)
Fish
done
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C)
Snake
done
clear
D)
Amphioxus
done
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View Answer play_arrow
question_answer 137) The blood of cockroach contains no respiratory pigment. It means that:
A)
respiration in anaerobic
done
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B)
cockroach does not respire
done
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C)
oxygen goes directly into tissues by diffusion
done
clear
D)
oxygen goes into tissue by intracellular capillary system
done
clear
View Answer play_arrow
question_answer 138) Which pan of an animal virus is not reproduced in multiple copies?
A)
Capsid
done
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B)
Proteins
done
clear
C)
Envelope
done
clear
D)
Ribosomes
done
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View Answer play_arrow
question_answer 139) The echinoderms are :
A)
arborial insects
done
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B)
marine animals
done
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C)
terrestrial insects
done
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D)
fresh water forms
done
clear
View Answer play_arrow
question_answer 140) Arbor vitae is composed of :
A)
grey matter
done
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B)
neurogleal cells
done
clear
C)
white matter
done
clear
D)
all of these
done
clear
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question_answer 141) During unfavourable conditions, the sponges form:
A)
cyst
done
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B)
encyst
done
clear
C)
spicules
done
clear
D)
gemmules
done
clear
View Answer play_arrow
question_answer 142) First National Park developed in India is :
A)
Gir
done
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B)
Kaziranga
done
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C)
Jim Corbett
done
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D)
None of these
done
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View Answer play_arrow
question_answer 143) Polymerase chain reaction is most useful in :
A)
DNA synthesis
done
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B)
DNA amplification
done
clear
C)
protein synthesis
done
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D)
amino acid synthesis
done
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View Answer play_arrow
question_answer 144) 'Lack jaw" is another name of :
A)
malaria
done
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B)
kala azar
done
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C)
tetanus
done
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D)
diphtheria
done
clear
View Answer play_arrow
question_answer 145) What is, 'study of ageing', called ?
A)
Gerontology
done
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B)
Geriatrics
done
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C)
Anthropology
done
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D)
Ethnolgy
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question_answer 146) Binomial nomenclature was given by :
A)
Lamarck
done
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B)
Linnaeus
done
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C)
Darwin
done
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D)
Tijo and Levan
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question_answer 147) In parasympathetic nervous system, which of the following is released ?
A)
Epinephrine
done
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B)
Nor epinephrine
done
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C)
Serotonin
done
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D)
Acetylcholine
done
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question_answer 148) Ruminants belong to order :
A)
Proboscida
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B)
Artiodactyla
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C)
Marsupials
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D)
Edemata
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question_answer 149) Which one is component of Omithine cycle ?
A)
Omithine, citrulline and alanine
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B)
Omithine, citrulline and arginine
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C)
Amino acid are not used
done
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D)
Omithine, citrulline and rumaric acid
done
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question_answer 150) In lac operon system, lac gene-1 codes for:
A)
inducer
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B)
represser
done
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C)
promoter
done
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D)
\[\text{ }\!\!\beta\!\!\text{ -}\]galactosidase
done
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question_answer 151) Coralloid root is the feature of:
A)
Cycas
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B)
Mosses
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C)
Pinus
done
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D)
Selaginella
done
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question_answer 152) Which of the following is an edible 'Fungi'?
A)
Mucor
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B)
Penicillium
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C)
Agaricus
done
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D)
Rhvzopus
done
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question_answer 153) Chromosome complement with \[\text{2n-1}\] is called as:
A)
monosomy
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B)
nullisomy
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C)
trisomy
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D)
tetrasomy
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question_answer 154) Energy transferred from one trophic level to another is :
A)
5%
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B)
10%
done
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C)
15%
done
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D)
20%
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question_answer 155) The bioassay of auxin is:
A)
avena curvature test
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B)
callus formation
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C)
culture of fungus
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D)
seed dormancy
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question_answer 156) Coir which is obtained from fruit of coconut is:
A)
endocarp
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B)
periderm
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C)
mesocarp
done
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D)
epicarp
done
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question_answer 157) Solarisation is:
A)
formation of chlorophyll
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B)
destruction of chlorophyll
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C)
utilisation of sunlight
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D)
effects of solar light
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question_answer 158) The most primitive in the following are :
A)
cyanobacteria
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B)
bryophytes
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C)
gymnosperms
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D)
monocots
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question_answer 159) Bacteria are considered plant because they :
A)
are green in colour
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B)
have rigid cell wall
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C)
have chlorophyll
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D)
have stomata
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question_answer 160) Which is not a monocot?
A)
Rose
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B)
Orchids
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C)
Palms
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D)
Banana
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question_answer 161) Endoplasmic reticulum is in continuation with :
A)
Golgi body
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B)
nuclear wall
done
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C)
mitochondria
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D)
cell watt
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question_answer 162) 'Pneumaiophores' are present/common in :
A)
xerophytes
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B)
hygrophytes
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C)
mesophytes
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D)
halophytes
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question_answer 163) During the G1-phase of cell division :
A)
RNA and proteins are synthesized
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B)
DNA and proteins are synthesized
done
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C)
cell prepares for M-phase
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D)
cell undergoes duplication
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question_answer 164) During the meiotic division, the:
A)
homologous chromosomes are separated
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B)
the linkage is disturbed
done
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C)
the homologous chromosomes do not segregate
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D)
all of the above
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question_answer 165) In Cycas, pollination takes place in :
A)
3 celled stage
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B)
4 celled stage
done
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C)
2 celled stage
done
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D)
1 celled stage
done
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question_answer 166) Trimerous flower, superior ovary and axile placentation is characteristics of :
A)
Liliaceae
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B)
Cucurbitaceae
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C)
Solanaceae
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D)
Compositae
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question_answer 167) Viruses possess :
A)
DNA only
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B)
nucleic acid, DNA or RNA
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C)
protein only
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D)
nucleic acid and protein
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question_answer 168) Maximum absorption of rainfall water is done by:
A)
tropical deciduous forest
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B)
tropical evergreen forest
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C)
tropical savanna
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D)
scrub forest
done
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question_answer 169) Which of the following is responsible for synthesis of enzyme in seed germination?
A)
\[\text{IAA}\]
done
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B)
Gibberellin
done
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C)
Cytokinin
done
clear
D)
Ethylene
done
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question_answer 170) Which of the following form is an algae?
A)
Equisetum
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B)
Selagineila
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C)
Marsilea
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D)
None of these
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question_answer 171) Most primitive members in which roots are not present, is :
A)
Psilotum
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B)
Rhynia
done
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C)
Lycopodium
done
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D)
Selagineila
done
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question_answer 172) In which form does the food transported in plants?
A)
Sucrose
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B)
Fructose
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C)
Glucose
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D)
Lactose
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question_answer 173) Largest flower is :
A)
Rafflesia
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B)
lotus
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C)
rose
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D)
lily
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question_answer 174) Lady finger belongs to family :
A)
Malvaceae
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B)
Cucurbitaceae
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C)
Liliaceae
done
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D)
Brassicaceae
done
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question_answer 175) Which of the following is biogas?
A)
\[C{{O}_{2}}\]
done
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B)
\[N{{O}_{2}}\]
done
clear
C)
\[C{{H}_{4}}\]
done
clear
D)
\[{{N}_{2}}\]
done
clear
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question_answer 176) What differentiates leaf of dicots from monocots?
A)
Parallel venation
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B)
Differentiation of palisade and spongy parenchyma
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C)
Stomata only on upper side
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D)
Stomata both on upper and lower sides
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question_answer 177) The presence of diversity at the junction of territories of two different habitats is known as :
A)
bottle neck effect
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B)
edge effect
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C)
junction effect
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D)
Pasteur effect
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question_answer 178) Fist biochemical to be produced commercially by microbial cloning and genetic engineering, is:
A)
human insulin
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B)
penicillin
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C)
interferons
done
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D)
fertility factor
done
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question_answer 179) Selaginella possesses an outgrowth proximally:
A)
ligule
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B)
indusium
done
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C)
stipule
done
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D)
petiole
done
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question_answer 180) Terminator gene:
A)
help in terminating flowering
done
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B)
help in terminating seed germination
done
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C)
used in hybridization
done
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D)
none of the above
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question_answer 181) A fern prothallus is bisexual. If fertilization takes place between their gametes than it is known as:
A)
cross fertilization
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B)
self fertilization
done
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C)
isogamous
done
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D)
viviparous
done
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question_answer 182) In Pisum sativum, there are 14 chromosomes. How many types of homologous pairs can be prepared?
A)
14
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B)
7
done
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C)
214
done
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D)
210
done
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question_answer 183) Which is essential for root hair growth?
A)
Zn
done
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B)
Ca
done
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C)
Mo
done
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D)
S
done
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question_answer 184) Which of the following is not the feature of gymnosperms?
A)
Parallel venation
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B)
Perennial plants
done
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C)
Distinct branches (long and short branches)
done
clear
D)
Xylem with vessels
done
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question_answer 185) Chicory powder which is mixed with coffee powder is obtained from :
A)
root
done
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B)
leaf
done
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C)
stem
done
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D)
seeds
done
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question_answer 186) Crown gall disease in plants is caused by:
A)
Ti-plasmid
done
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B)
Pi-plasmid
done
clear
C)
mycoplasma
done
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D)
virus
done
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question_answer 187) Thigmotropism is best observed in :
A)
roots
done
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B)
leaves
done
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C)
tendrils
done
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D)
stems
done
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question_answer 188) Having capacity of absorbing water, used to replace cotton and used as a fuel is :
A)
Marchantia
done
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B)
Riccia
done
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C)
Sphagnum
done
clear
D)
Funaria
done
clear
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question_answer 189) Which of the following is secondary pollutant:
A)
NO
done
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B)
\[N{{O}_{2}}\]
done
clear
C)
\[S{{O}_{2}}\]
done
clear
D)
PAN
done
clear
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question_answer 190) Stem cuttings are commonly used for the propagation of:
A)
banana
done
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B)
rose
done
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C)
mango
done
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D)
cotton
done
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question_answer 191) Pure tall plants are crossed with pure dwarf plants. In the F1 generation, all plants were tall. These tall plants of F1 generation were selfed and the ratio of tall to dwarf plants obtained was 3 : 1. This is called :
A)
dominance
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B)
inheritance
done
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C)
co-dominance
done
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D)
heredity
done
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question_answer 192) In callus culture, roots can be induced by the supply of:
A)
auxin
done
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B)
cylokinin
done
clear
C)
gibberellin
done
clear
D)
ethylene
done
clear
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question_answer 193) Edible part in 'sorosis', a composite fruit, is :
A)
cotyledons
done
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B)
endosperm
done
clear
C)
perianth and peduncle
done
clear
D)
flpshy thalamus
done
clear
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question_answer 194) Which of the following is man made?
A)
Secale
done
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B)
Triticale
done
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C)
Tnricum
done
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D)
Cicer arietmum
done
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question_answer 195) Botanical name of 'chana' is :
A)
Cicer arietinum
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B)
Phcueofm aureus
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C)
Lablab purpureus
done
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D)
Dolichos
done
clear
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question_answer 196) Which of the following is a true nut?
A)
Walnut
done
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B)
Cashew nut
done
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C)
Groundnut
done
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D)
Pistachio
done
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question_answer 197) The edible dry fruit 'chilgoza' is :
A)
fruit of Cycas
done
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B)
fruit of Pinus gerardiana
done
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C)
seed of Cycas
done
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D)
seed of Pinus gerardiana
done
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question_answer 198) An obligate root parasite is :
A)
Rafflesia
done
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B)
Loranthus
done
clear
C)
Viscum
done
clear
D)
Striga
done
clear
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question_answer 199) Pappus is modified :
A)
calyx
done
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B)
corolla
done
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C)
bracts
done
clear
D)
gynoecium
done
clear
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question_answer 200) Ubisch bodies are present in :
A)
pollen tube
done
clear
B)
pollen grain
done
clear
C)
microspore
done
clear
D)
tapetum
done
clear
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