question_answer 1) Equation of plane wave is given by \[4\sin \frac{\pi }{4}\left[ 2t+\frac{x}{8} \right].\]The phase difference at any given instant of two particles 16 cm apart is
A)
\[{{60}^{o}}\]
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B)
\[{{90}^{o}}\]
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C)
\[30{}^\circ \]
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D)
\[{{120}^{o}}\]
done
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question_answer 2) The angle between the electric lines of force and an equipotential surface
A)
\[{{45}^{o}}\]
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B)
\[{{90}^{o}}\]
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C)
\[{{0}^{o}}\]
done
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D)
\[{{180}^{o}}\]
done
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question_answer 3) A condenser of capacity \[50\,\mu F\]is charged to 10 V. Its energy is equal to
A)
\[2.5\times {{10}^{-3}}J\]
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B)
\[2.5\times {{10}^{-4}}J\]
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C)
\[2.5\times {{10}^{-2}}J\]
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D)
\[1.25\times {{10}^{-8}}J\]
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question_answer 4) Two wires having resistance R and 2R are connected in parallel, the ratio of heat generated in 2R and R is
A)
1:2
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B)
2 :2
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C)
1:4
done
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D)
4:2
done
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question_answer 5) In a nuclear fission, \[0.1%\]mass is converted into energy. The energy released by the fission of 1 kg mass will be
A)
\[9\times {{10}^{19}}\,J\]
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B)
\[9\times {{10}^{17}}\,J\]
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C)
\[9\times {{10}^{16}}\,J\]
done
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D)
\[9\times {{10}^{13}}\,J\]
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question_answer 6) The energy of hydrogen atom in the nth orbit is \[{{E}_{n,}}\]then the energy in the nth orbit of single ionised helium atom is
A)
\[\frac{{{E}_{n}}}{2}\]
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B)
\[2{{E}_{n}}\]
done
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C)
\[4{{E}_{n}}\]
done
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D)
\[\frac{{{E}_{n}}}{4}\]
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question_answer 7) Suppose, 1 mg of radioactive substance is taken initially. After 2 h, it is found that 0.25 mg of the substance is left behind. The mean life of the substance is
A)
\[\frac{1}{0.693}h\]
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B)
\[0.693\times 2h\]
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C)
\[0.693\times \frac{1}{4}h\]
done
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D)
\[0.693\times 8h\]
done
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question_answer 8) Pure silicon at 300 K has equal electrons \[{{n}_{e}}\] and holes \[{{n}_{h}}\] concentration of 1.5 \[1.5\times {{10}^{16}}/{{m}^{3}}.\] Doping by indium increases number of holes\[{{n}_{h}}\]to \[4.5\times {{10}^{22}}/{{m}^{3}},\] then \[{{n}_{e}}\]doped in silicon will be
A)
\[3.0\times {{10}^{-19}}/{{m}^{3}}\]
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B)
\[5\times {{10}^{9}}/{{m}^{3}}\]
done
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C)
\[4.5\times {{10}^{22}}/{{m}^{3}}\]
done
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D)
\[1.5\times {{10}^{16}}/{{m}^{3}}\]
done
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question_answer 9) In an atom bomb, the reaction which occurs is
A)
thermo nuclear
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B)
uncontrolled fission
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C)
controlled fission
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D)
fusion
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question_answer 10) If the coefficient of static friction between the types and road is 0.5. What is the shortest distance in which an automobile can be stopped when travelling at 72 km/h?
A)
50 m
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B)
60 m
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C)
40.8m
done
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D)
80.16m
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question_answer 11)
What should be the minimum value of refractive index of the material of the prism for the reflection to take place as shown in the figure?
A)
1.7
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B)
1.4
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C)
1.2
done
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D)
2.7
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question_answer 12) An L- C circuit is in the state of resonance. If \[C=0.1\,\mu F\]and \[L=0.25\,H,\]neglecting ohmic resistance of circuit. What is the frequency of oscillations?
A)
1007 Hz
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B)
100 Hz
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C)
109 Hz
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D)
500 Hz
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question_answer 13) A body, thrown upwards with some velocity reaches the maximum height of 50 m. Another body with double the mass thrown up with double the initial velocity will reach a maximum height of
A)
100 m
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B)
200 m
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C)
300 m
done
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D)
400 m
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question_answer 14) A 100 m long train is moving with a uniform velocity of 45 km/h. The time taken by the train to cross a bridge of length 1 km is
A)
58 s
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B)
68 s
done
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C)
78 s
done
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D)
88 s
done
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question_answer 15) 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)
1/2
done
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C)
1/8
done
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D)
1/6
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question_answer 16) 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
done
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C)
12 min
done
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D)
6 min
done
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question_answer 17) 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 he frequency of 18th tuning fork?
A)
100 Hz
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B)
\[99\,Hz\]
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C)
\[96\,Hz\]
done
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D)
\[103{{\,}^{Pz}}\]
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question_answer 18) 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 19)
A body of mass 2 kg has an initial velocity of 3 m/s along OE and it is subjected to a force of 4 N in a direction perpendicular to OE. The distance of body from O after 4 s will be
A)
12 m
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B)
20 m
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C)
8 m
done
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D)
48 m
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question_answer 20) A synchronous relay satellite reflects TV signals and transmits TV programme from one part of the world to the other because its
A)
period of revolution is greate then the period of rotation of the earth about its axis
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B)
period of revolution is less than the per od of rotation of the earth about its axis
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C)
period of revolution is equal to the period of rotation of the earth about its axis
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D)
mass is less than the mass of earn
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question_answer 21) In hydrogen atom, the electron is moving around the nucleus with the velocity \[2.18\times {{10}^{6}}m/s\]in an orbit of radios \[{{0.52}^{o}}\overset{\text{o}}{\mathop{\text{A}}}\,\]The acceleration of the electron is
A)
\[9\times {{10}^{18}}m/{{s}^{2}}\]
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B)
\[9\times {{10}^{22}}m/{{s}^{2}}\]
done
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C)
\[9\times {{10}^{-22}}m/{{s}^{2}}\]
done
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D)
\[9\times {{10}^{12}}m/{{s}^{2}}\]
done
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question_answer 22) When a spring is stretched by a distance \[x,\]it exerts a force given by \[F=(-5x-16{{x}^{3}})N\] The work done, when the spring is streached from 0.1m to 0.2m is
A)
\[8.7\times {{10}^{-2}}J\]
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B)
\[12.2\,\times {{10}^{-2}}J\]
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C)
\[8.1\times {{10}^{-1}}J\]
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D)
\[12.2\times {{10}^{-1}}J\]
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question_answer 23) A simple pendulum has a time period \[{{T}_{1}}\]when on the earths surface and \[{{T}_{2}}\]when taken to a height R above the earths surface, where R is the radius of earth. The value of \[\frac{{{T}_{2}}}{{{T}_{1}}}\]is
A)
1
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B)
\[\sqrt{2}\]
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C)
4
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D)
2
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question_answer 24) There is a clock which gives correct time at \[\text{20}{{\,}^{\text{o}}}\text{C}\]is subjected to \[\text{40}{{\,}^{\text{o}}}\text{C}\] The coefficient of linear expansion of the pendulum is \[12\times {{10}^{-6}}\]per \[{{\,}^{o}}C\] how much is gain or loss in time?
A)
10.3 s/day
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B)
19s/day
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C)
5.5 s/day
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D)
6.8 s/day
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question_answer 25) The excess pressure inside a soap bubble of radius 4 cm is \[30\,dyne/c{{m}^{2}}.\] The surface tension is
A)
30 dyne/cm
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B)
20 dyne/cm
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C)
40 dyne/cm
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D)
80 dyne/cm
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question_answer 26) If a body moves through a distance greater than \[2\pi R\]in one full rotation. Then,
A)
\[{{V}_{cm}}>R\omega \]
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B)
\[{{V}_{cm}}<R\omega \]
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C)
\[{{V}_{cm}}\ge R\omega \]
done
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D)
\[{{V}_{cm}}\le R\omega \]
done
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question_answer 27) If the weight of a body in vacuum is \[\omega .{{\omega }_{1}}\] and \[{{\omega }_{2}}\]are the weights when it is immersed in a liquid of specific gravity\[{{\rho }_{1}}\] and \[{{\rho }_{2}}\] E respectively, then find the relation among\[{{\omega }_{1}},{{\omega }_{2}}\]and \[{{\omega }_{2}}\].
A)
\[\frac{{{w}_{1}}{{\rho }_{1}}-{{w}_{2}}{{\rho }_{2}}}{{{w}_{1}}+{{w}_{2}}}\]
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B)
\[{{w}_{1}}=\frac{{{w}_{1}}{{\rho }_{2}}-{{w}_{2}}{{\rho }_{2}}}{{{\rho }_{2}}-{{\rho }_{1}}}\]
done
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C)
\[w=\frac{{{w}_{1}}{{\rho }_{1}}+{{w}_{2}}{{\rho }_{2}}}{{{\rho }_{1}}+{{\rho }_{2}}}\]
done
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D)
\[w=\frac{{{w}_{1}}{{\rho }_{1}}+{{w}_{2}}{{\rho }_{1}}}{{{\rho }_{1}}+{{\rho }_{2}}}\]
done
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question_answer 28) A body of mass \[m=10\,kg\]is attached to a wire of length 0.3 m. Calculate the maximum angular velocity with which it can be rotated in a horizontal circle (Breaking stress of wire\[=4.8\times {{10}^{7}}N/{{m}^{2}}\] and area of cross-section of a wire\[={{10}^{-6}}{{m}^{2}}\])
A)
4 rad/s
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B)
8 rad/s
done
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C)
1 rad/s
done
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D)
2 rad/s
done
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question_answer 29) If the energy (E), velocity \[(\upsilon )\] and force (F) be taken as fundamental quantity, then the dimension of mass will be
A)
\[F{{v}^{-2}}\]
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B)
\[F{{v}^{-1}}\]
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C)
\[E{{v}^{-2}}\]
done
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D)
\[E{{v}^{2}}\]
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question_answer 30) In an \[n-p-n\]transistor
A)
negative charge moves from collector to base
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B)
negative charge moves from emitter to base
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C)
holes moves from base to collector
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D)
holes move from emitter to base
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question_answer 31) A conducting sphere of radius \[R=20\,cm\]is given a charge \[Q=16\mu C.\] What is E at its centre?
A)
\[3.6\times {{10}^{6}}\,N/C\]
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B)
\[1.8\times {{10}^{6}}\,N/C\]
done
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C)
Zero
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D)
\[0.9\times {{10}^{6}}N/C\]
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question_answer 32)
A coil having N turns carry a current as shown in the figure. The magnetic field intensity at point P is
A)
\[\frac{{{\mu }_{0}}Ni{{R}^{2}}}{2{{({{R}^{2}}+{{x}^{2}})}^{3/2}}}\]
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B)
\[\frac{{{\mu }_{0}}Ni}{2R}\]
done
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C)
\[\frac{{{\mu }_{0}}Ni{{R}^{2}}}{{{(R+x)}^{2}}}\]
done
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D)
zero
done
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question_answer 33) A car starts from rest, moves with an acceleration a and then decelerates at a constant rate b for sometime to come to rest. If the total time taken is t. The maximum velocity of car is given by
A)
\[\frac{abt}{(a+b)}\]
done
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B)
\[\frac{{{a}^{2}}t}{a+b}\]
done
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C)
\[\frac{at}{(a+b)}\]
done
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D)
\[\frac{{{b}^{2}}t}{a+b}\]
done
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question_answer 34) An organ pipe closed at one end has fundamental frequency of 1500 Hz. The maximum number of overtones generated by this pipe which a normal person can he or is
A)
4
done
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B)
13
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C)
6
done
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D)
9
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question_answer 35) Two planets are revolving around the earth with velocities \[{{\upsilon }_{1}}\]and \[{{\upsilon }_{2}}\]and in radii\[{{r}_{1}}\] and \[{{r}_{2}}({{r}_{1}}>{{r}_{2}})\] respectively. Then
A)
\[{{v}_{1}}={{v}_{2}}\]
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B)
\[{{v}_{1}}>{{v}_{2}}\]
done
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C)
\[{{v}_{1}}<{{v}_{2}}\]
done
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D)
\[\frac{{{v}_{1}}}{{{r}_{1}}}=\frac{{{v}_{2}}}{{{r}_{2}}}\]
done
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question_answer 36)
Output W is given by
A)
\[(X+Y)Z\]
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B)
\[(\bar{X}+\bar{Y})Z\]
done
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C)
\[\bar{X}.\bar{Y}+\bar{Z}\]
done
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D)
\[(\bar{X}.\bar{Y}).Z\]
done
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question_answer 37) In double slit experiment, the distance between two slits is 0.6 mm and these are illuminate with light of wavelength \[4800\overset{\text{o}}{\mathop{\text{A}}}\,.\] The angular width of first dark fringe on the screen distance 120 cm from slits will be
A)
\[8\times {{10}^{-4}}\,rad\]
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B)
\[6\times {{10}^{-4}}\,rad\]
done
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C)
\[4\times {{10}^{-4}}\,rad\]
done
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D)
\[16\times {{10}^{-4}}\,rad\]
done
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question_answer 38) Green light causes emission of photoelectron from a surface, but not the yellow light. Emission of photoelectron will occur if the surface is illuminated by
A)
microwave
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B)
red rays
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C)
ultraviolet rays
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D)
infrared rays
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question_answer 39) The kinetic energy of 1 g molecule of a gas at normal temperature and pressure is\[(R=8.31\,J/mol-K)\]
A)
\[3.4\times {{10}^{3}}J\]
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B)
\[2.97\times {{10}^{3}}J\]
done
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C)
\[1.2\times {{10}^{2}}J\]
done
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D)
\[0.66\times {{10}^{4}}J\]
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question_answer 40) 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)
grids is positive and anode is negative
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D)
grid is negative and anode is positive
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question_answer 41) Among the following properties describing diamagnetism identify the property that is wrongly stated.
A)
Diamagnetic material do not have permanent magnetic moment
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B)
Diamagnetism is explained in terms of electromagnetic induction
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C)
Diamagnetic materials have a small positive susceptibility
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D)
The magnetic moment of individual electrons neutralize each other.
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question_answer 42) The induction coil works on the principle of
A)
self-induction
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B)
mutual induction
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C)
ampenrs rule
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D)
Flemings right hand rule
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question_answer 43) The square root of the product of inductance and capacitance has the dimension of
A)
length
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B)
mass
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C)
time
done
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D)
no dimension
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question_answer 44) The optical path difference is defined as \[\Delta x=\frac{2\pi }{\lambda }.\]what are dimensions of optical path difference?
A)
\[{{M}^{0}}{{L}^{-1}}{{T}^{0}}\]
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B)
\[[{{M}^{1}}{{L}^{-1}}{{T}^{0}}]\]
done
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C)
\[[M{{L}^{0}}{{T}^{2}}]\]
done
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D)
\[[M{{L}^{-2}}T]\]
done
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question_answer 45) A force\[F=2\hat{i}+3\hat{i}+\hat{k}\] are on a body. The work done by the force for a displacement of \[-2i+\hat{j}-k\] is
A)
2 unit
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B)
4 unit
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C)
-2 unit
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D)
-4 unit
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question_answer 46) At an instant t, the coordinate of a particles are \[x=a{{t}^{2}},y=b{{t}^{2}}\]and \[z=0.\]The magnitude of velocity of particle at an instant t is
A)
\[t\sqrt{{{a}^{2}}+{{b}^{2}}}\]
done
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B)
\[\frac{v}{\sqrt{2}}\]
done
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C)
\[\frac{v}{\sqrt{3}}\]
done
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D)
\[2t\sqrt{{{a}^{2}}+{{b}^{2}}}\]
done
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question_answer 47) A body of mass 10 kg is to be raised by a massless string tram rest to rest, through a height 9.8 m. The greatest tension which the string can safely bear is 20 kg wt. The least time of ascent is
A)
1s
done
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B)
3s
done
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C)
4 s
done
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D)
None of these
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question_answer 48) A ball moving with a certain velocity hits another identical ball at rest. If the plane is frictionless and collision is elastic, the angle between the directions in which the balls move after collision, will be
A)
\[{{30}^{o}}\]
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B)
\[{{60}^{o}}\]
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C)
\[{{90}^{o}}\]
done
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D)
\[{{120}^{o}}\]
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question_answer 49) A 70 kg man standing on ice through a B kg body horizontally at 8 m/s. The friction coefficient between the ice and his feet is 0.02. The distance, the man slips is
A)
0.3 m
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B)
2m
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C)
1 m
done
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D)
100
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question_answer 50) Pressure inside two soap bubble are 1.01 and 1.03 aim, ratio between their volume is
A)
27:1
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B)
3:1
done
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C)
127:101
done
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D)
None of these
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question_answer 51) The rate law for the reaction, \[2X+Y\to Z\]is \[Rate=k\,[X][Y].\]The correct statement with regard to this relation is
A)
the rate of reaction is independent of [X] and [V]
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B)
for this reaction \[{{t}_{1/2}}\] is independent of initial concentration of reactants
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C)
the unit of \[k\] is \[{{S}^{-1}}\]
done
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D)
the rate of formation of Z is half the rate of disappearance of X
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question_answer 52) If the activation energy for the forward reaction is \[250\,kJ\,mo{{l}^{-1}}\] and that of the reverse reaction is \[360\,kJ\,mo{{l}^{-1}},\] what is the enthalpy change for the reaction?
A)
\[+\,110\,k\,mo{{l}^{-1}}\]
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B)
\[-\,110\,kJ\,mo{{l}^{-1}}\]
done
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C)
\[+\,610\,kJ\,mo{{l}^{-1}}\]
done
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D)
\[-\,610\,kJ\,mo{{l}^{-1}}\]
done
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E)
None option is correct
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question_answer 53) Which one of the following statement is correct about lyophilic sols?
A)
These are formed by inorganic substances
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B)
These are irreversible
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C)
These are readily coagulated by addition of electrolytes
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D)
These are self-stabilized
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question_answer 54) Which one of the following is true in respect of adsorption?
A)
\[\Delta G<0,\Delta S<0,\Delta H<0\]
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B)
\[\Delta G<0,\Delta S>0,\Delta H<0\]
done
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C)
\[\Delta G>0,\Delta S>0,\Delta H>0\]
done
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D)
\[\Delta G<0,\Delta S<0,\Delta H>0\]
done
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question_answer 55) In extraction of chlorine by electrolysis of brine
A)
oxidation of CF ion to chlorine gas occurs
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B)
reduction of CF ion to chlorine gas occurs
done
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C)
for overall reaction AG° has negative value
done
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D)
a displacement reaction taken place
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question_answer 56) Which of the following does not exist in free form?
A)
\[B{{H}_{3}}\]
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B)
\[B{{F}_{3}}\]
done
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C)
\[BC{{l}_{3}}\]
done
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D)
\[BB{{r}_{3}}\]
done
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question_answer 57) Which of the following on thermal decomposition yields a basic as well as an acidic oxide?
A)
\[NaN{{O}_{3}}\]
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B)
\[BeC{{O}_{3}}\]
done
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C)
\[CaC{{O}_{3}}\]
done
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D)
\[KCl{{O}_{3}}\]
done
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question_answer 58) The shape of \[{{O}_{2}}{{F}_{2}}\]is similar to that of
A)
\[{{C}_{2}}{{F}_{2}}\]
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B)
\[{{H}_{2}}{{O}_{2}}\]
done
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C)
\[N{{a}_{2}}{{O}_{2}}\]
done
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D)
\[{{C}_{2}}{{H}_{2}}\]
done
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question_answer 59) Caros acid is also known as
A)
dithionic acid, \[{{H}_{2}}{{S}_{2}}{{O}_{6}}\]
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B)
sulphurous acid, \[{{H}_{2}}S{{O}_{3}}\]
done
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C)
peroxomono sulphuric acid,\[{{H}_{2}}S{{O}_{5}}\]
done
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D)
pyro sulphuric acid, \[{{H}_{2}}{{S}_{2}}{{O}_{7}}\]
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question_answer 60) A certain metal sulphide, \[M{{s}_{2}}\]is used extensively as a high temperature lubricant. If \[M{{s}_{2}}\]is 40.06% by mass sulphur, metal M has atomic mass
A)
160u
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B)
40 u
done
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C)
64 u
done
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D)
96 u
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question_answer 61) In which of the following molecules would you expect the nitrogen to nitrogen bond to be shortest?
A)
\[{{N}_{2}}{{H}_{4}}\]
done
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B)
\[{{N}_{2}}\]
done
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C)
\[{{N}_{2}}{{O}_{4}}\]
done
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D)
\[{{N}_{2}}O\]
done
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question_answer 62) Two of the following species have the same shape. Which are these two? \[N{{I}_{3}},I_{3}^{-},SO_{3}^{2-},NO_{3}^{-}\]
A)
\[N{{I}_{3}},I_{3}^{-}\]
done
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B)
\[I_{3}^{-},SO_{3}^{2-}\]
done
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C)
\[N{{I}_{3}},SO_{3}^{2-}\]
done
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D)
\[I_{3}^{-},NO_{3}^{-}\]
done
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question_answer 63) Select incorrect statement.
A)
Double bond is shorter than a single bond
done
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B)
x\[\sigma -\]bond is weaker than a \[\pi -\]bond
done
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C)
Double bond is stronger than a single bond
done
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D)
Covalent bond is stronger than a hydrogen bond
done
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View Answer play_arrow
question_answer 64) . Which is the correct order of size of \[{{O}^{-}},{{O}^{2-}},{{F}^{-}}\]and F?
A)
\[{{O}^{2-}}>{{O}^{-}}>{{F}^{-}}>F\]
done
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B)
\[{{O}^{-}}>{{O}^{2-}}>{{F}^{-}}>F\]
done
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C)
\[{{O}^{2-}}>{{F}^{-}}>F>{{O}^{-}}\]
done
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D)
\[{{O}^{2-}}>{{F}^{-}}>{{O}^{-}}>F\]
done
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View Answer play_arrow
question_answer 65) A sulphur containing species that cant be a reducing agent is
A)
\[S{{O}_{2}}\]
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B)
\[SO_{3}^{2-}\]
done
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C)
\[{{H}_{2}}S{{O}_{4}}\]
done
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D)
\[{{S}^{2-}}\]
done
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question_answer 66) A process that produces a one unit increase in atomic number is
A)
electron capture
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B)
\[\beta -\]emission
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C)
\[\alpha -\]emission
done
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D)
\[\gamma -\]ray emission
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View Answer play_arrow
question_answer 67) How many milliliters of \[0.45\,\text{MBaC}{{\text{l}}_{\text{2}}}\]solution contain 15.0 g of \[BaC{{l}_{2}}(208\,g\,mo{{l}^{-1}})\]
A)
110.7mL
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B)
124.6mL
done
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C)
135.8 mL
done
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D)
160.3 Ml
done
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question_answer 68) Choose correct statement.
A)
\[{{H}_{2}}\]is more rapidly adsorbed on to the surf then \[{{D}_{2}}\]
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B)
\[{{H}_{2}}\]reacts over 13 times faster with \[C{{l}_{2}}\]than because \[{{D}_{2}}\]has a lower energy of activation
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C)
Both [a] and [b] are true
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D)
None of the above is true
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question_answer 69) Amongst the following, identify the species with an atom in + 6 oxidation state.
A)
\[MnO_{4}^{-}\]
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B)
\[Cr(CN)_{6}^{3-}\]
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C)
\[NiF_{6}^{2-}\]
done
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D)
\[Cr{{O}_{2}}C{{l}_{2}}\] In \[Cr{{O}_{2}}C{{l}_{2}},Cr\]is in + 6 oxidation state.
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question_answer 70) The radii of the elements from chromium (Z =24) to copper (Z = 29) are very close to one another. This is due to
A)
lanthanide contraction
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B)
the fact that successive addition of d -electrons screen the outer electrons (4s-) from the inward pull of the nucleus
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C)
increase in radii due to increase in n is compensated by decrease in radii due to increase in Z
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D)
atomic radii do not remain constant but decrease in a normal gradation
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View Answer play_arrow
question_answer 71) The octahedral complex ion \[{{[FeC{{l}_{6}}]}^{3-}}\]
A)
5 unpaired electrons \[(t_{2g}^{3}e_{g}^{2})\]
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B)
1 unpaired electron \[(t_{2g}^{1})\]
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C)
3 unpaired electrons \[(t_{2g}^{1}e_{g}^{2})\]
done
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D)
All the electrons are paired
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question_answer 72) The complex \[{{[Co{{(N{{H}_{3}})}_{5}}(N{{O}_{2}})]}^{2+}}\] and \[{{[Co{{(N{{H}_{3}})}_{5}}(ONO)]}^{2+}}\] are called
A)
ionisation isomers
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B)
linkage isomers
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C)
coordination isomers
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D)
geometrical isomers
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View Answer play_arrow
question_answer 73) If \[Z{{n}^{2+}}|Zn\]electrode is diluted 100 times, then the change in emf is
A)
increase of 59 mV
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B)
decrease of 59 mV
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C)
increase of 29.5 mV
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D)
decrease of 29.5 mV
done
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question_answer 74) At 291 K the molar conductivities at infinite dilution of \[N{{H}_{4}}Cl,NaOH\]and \[NaCI\]are 129.8, 217.4 and \[108.9\,Sc{{m}^{2}}\]respectively,. If the molar conductivity of a centinormal solution of \[N{{H}_{4}}OH\]is \[9.33\,Sc{{m}^{2}},\] What is the precentage dissociation of \[N{{H}_{4}}OH\]at this dilution?
A)
1.76%
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B)
2.28%
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C)
3.92%
done
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D)
4.15%
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question_answer 75) On chemical analysis, it is found that 200 mL of\[CaC{{l}_{2}}\] solution contains \[3.01\times {{10}^{22}}\] chloride ions. Calculate the molarity of this solution.
A)
O.125M
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B)
0.178M
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C)
0.21 OM
done
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D)
0.253 M
done
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question_answer 76) The osmotic pressure of a urea solution is 500 mm of Hg at \[10{{\,}^{o}}C.\] The solution is diluted and its temperature is raised to \[25{{\,}^{o}}C\] It is now found that osmotic pressure of the solution is reduced to 105.3 mm of Hg. The extent of dilution of the solution is
A)
2 times
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B)
3 times
done
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C)
4 times
done
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D)
5 times
done
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question_answer 77) Iron changes its crystal structure from body centred to cubic close packed structure when heated to 91\[916{{\,}^{o}}C\]. Calculate the ratio of the density of the bcc crystal to that of ccp crystal, assuming that the metallic radius of the atom does not change
A)
0.639
done
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B)
0.743
done
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C)
0.896
done
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D)
0.919
done
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question_answer 78) An ionic compound made up of atoms A and B has fee arrangement in which atoms A are at the corners and atoms B are at the face-centres. If one of the atoms is missing from the corner, the simplest formula of the compound will be
A)
\[{{A}_{7}}{{B}_{24}}\]
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B)
\[{{A}_{2}}{{B}_{3}}\]
done
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C)
\[{{A}_{3}}{{B}_{7}}\]
done
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D)
\[{{A}_{3}}{{B}_{10}}\]
done
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View Answer play_arrow
question_answer 79) Which of the following is halogen exchange reaction?
A)
\[RX+Nal\xrightarrow{{}}Rl+NaX\]
done
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B)
done
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C)
done
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D)
done
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View Answer play_arrow
question_answer 80) Chlorobenzene is formed by the reaction of chlorine with benzene in the presence of \[AlC{{l}_{3}}.\]Which of the following species attacks the benzene ring in this reaction?
A)
\[C{{l}^{-}}\]
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B)
\[C{{l}^{+}}\]
done
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C)
\[AlC{{l}_{3}}\]
done
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D)
\[{{[AlC{{l}_{4}}]}^{-}}\]
done
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question_answer 81) The conversion of m-mitrophenol to resorcinol involves respectively
A)
reduction, diazotisation, hydrolysis
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B)
hydrolysis, reduction, diazotisation
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C)
hydrolysis, diazotisation, reduction
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D)
diazotisation, reduction, hydrolysis
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question_answer 82) Formation of methyl tertiary butyl ether by the reaction of sodium tertiary butoxide and methyl bromide involves
A)
elimination reaction
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B)
electrophilic addition reaction
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C)
nucleophilic addition reaction
done
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D)
nucleophilic substitution reaction
done
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question_answer 83) In Clemmensen reduction, carbonyl compound is treated with
A)
Zn amalgam \[\text{+ HCI}\]
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B)
Na amalgam\[\text{ }\!\!~\!\!\text{ + HCI}\]
done
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C)
Zn amalgam \[\text{+}\,\text{HN}{{\text{O}}_{\text{3}}}\]
done
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D)
Na amalgam \[\text{HN}{{\text{O}}_{\text{3}}}\]
done
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View Answer play_arrow
question_answer 84) An organic compound [A] with molecular formula \[{{\text{C}}_{8}}{{H}_{8}}O\]forms an orange red precipitate with 2, 4-DNP reagent and gives yellow precipitate on heating with iodine in the presence of sodium hydroxide. It neither reduces Tollens reagent or Fehlings reagent, nor decolourises bromine water or Baeyers reagent. Compound A is
A)
done
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B)
done
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C)
done
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D)
done
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question_answer 85) Which of the following sets consist only of essential amino acids?
A)
Alanine, lysine, glutamine
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B)
Lysine, leucine, tryptophane
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C)
Tyrosine, cysteine,alanine
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D)
Proline, glycine, leucine
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question_answer 86) Which of the following reactions of glucose can be explained only by its cyclic structure?
A)
Glucose forms pentaacetate
done
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B)
Glucose is oxidised by nitric acid to gluconic acid
done
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C)
Glucose reacts with hydroxyl amine to form an oxime
done
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D)
Pentaacetate of glucose does not react with hydroxyl amine
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question_answer 87) Which one of the following tranquilisers is not a derivative of barbituric acid?
A)
Veronal
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B)
Seconal
done
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C)
Luminal
done
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D)
Equanil
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question_answer 88) Arrange the following alkenes towards order of increasing reactivity in cationic polymerisation \[{{H}_{2}}C=CHC{{H}_{3}},{{H}_{2}}C=CHCl,\]\[{{H}_{2}}C=\underset{III}{\overset{I}{\mathop{C}}}\,H{{C}_{6}}{{H}_{5}},{{H}_{2}}C=\underset{(IV)}{\mathop{CHCOOC{{H}_{3}}}}\,\]
A)
IV < II < I < III
done
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B)
111 < II < I < IV
done
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C)
I < II < III < IV
done
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D)
II < IV < I < III
done
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question_answer 89) Which of the following electronic transitions requires that the greatest quantity of energy be absorbed by a hydrogen atom?
A)
n = 1 to n = 2
done
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B)
n = 2 to n = 4
done
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C)
n= 3ton= 6
done
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D)
n = 1 to n = \[\infty \]
done
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question_answer 90) If angular momentum quantum number can take value of n also (in addition to other possible values) then total number of electrons in first orbit would have been
A)
2
done
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B)
6
done
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C)
8
done
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D)
10
done
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question_answer 91) A quantity of hydrogen gas occupies a volume of 30.0 mL at a certain temperature and pressure. What volume would half this mass of hydrogen occupy at triple the absolute temperature if the pressure were one-ninth that of the original gas?
A)
270 mL
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B)
90 mL
done
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C)
405 mL
done
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D)
135 mL
done
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question_answer 92) For the following equilibrium, \[{{N}_{2}}{{O}_{4}}2N{{O}_{2}};{{K}_{c}}=0.67.\]If we start with 3 moles of \[N{{O}_{2}}\]and 1 mole of \[{{N}_{2}}{{O}_{4}}\]in 1L flask, then \[N{{O}_{2}}\]present at equilibrium is
A)
1.5 mol
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B)
2.0 mol
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C)
0.5 mol
done
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D)
1.0 mol
done
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question_answer 93) \[(\Delta H-\Delta E)\] is maximum at a given temperaute in case of
A)
\[PC{{l}_{5}}(g)\xrightarrow{{}}PC{{l}_{3}}(g)+C{{l}_{2}}(g)\]
done
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B)
\[CaC{{O}_{3}}(s)\xrightarrow{{}}CaO(s)+C{{O}_{2}}(g)\]
done
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C)
\[N{{H}_{4}}HS(s)\xrightarrow{{}}N{{H}_{3}}(g)+{{H}_{2}}S(g)\]
done
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D)
\[{{N}_{2}}(g)+{{O}_{2}}(g)\xrightarrow{{}}2NO(g)\]
done
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View Answer play_arrow
question_answer 94) Which of the following is spontaneous?
A)
if fusion of perfume molecules from one side of the room to other
done
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B)
Decomposition of solid \[CaC{{O}_{3}}\]
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C)
Heat flow from a cold object to a hot object
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D)
Climbing up a mountain.
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question_answer 95) On burning 4.0 g of iron to ferric oxide at constant pressure, the heat evolved is 29.28 kJ. The enthalpy of formation of ferric oxide is (At\[\omega t.Fe=56\])
A)
\[81.98\text{ }kJ\text{ }mo{{1}^{-1}}\]
done
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B)
\[-\text{ }81.98\text{ }kJ\text{ }mo{{1}^{-1}}\]
done
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C)
\[\text{ }819.8\text{ }kJ\text{ }mo{{1}^{-1}}\]
done
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D)
\[-819.8\,kJ\,mo{{l}^{-1}}\]
done
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View Answer play_arrow
question_answer 96) A saturated solution prepared by dissolving \[A{{g}_{2}}C{{O}_{3}}\]in water has \[[A{{g}^{+}}]=2.56\times {{10}^{-4}}M.\]Hence, its \[{{K}_{sp}}\]is
A)
\[8.4\times {{10}^{-12}}\]
done
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B)
\[1.68\times {{10}^{-13}}\]
done
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C)
\[6.6\times {{10}^{-8}}\]
done
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D)
\[1.6\times {{10}^{-2}}\]
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question_answer 97) In group III analysis, buffer used to precipitate cations as hydroxide is
A)
\[N{{H}_{4}}Cl+N{{H}_{4}}OH\]
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B)
\[HCO_{3}^{-}+C{{O}_{2}}\]
done
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C)
\[C{{H}_{3}}COOH+C{{H}_{3}}COONa\]
done
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D)
\[{{C}_{6}}{{H}_{5}}COOH+{{C}_{6}}{{H}_{5}}COONa\]
done
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question_answer 98) Which one of the following product is most expected?
A)
done
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B)
done
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C)
done
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D)
done
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question_answer 99) On the basis of the fact that \[NaN{{H}_{2}}\]can deprotonate \[HC\equiv CH\]but not \[C{{H}_{2}}=C{{H}_{2}}\]and the hybridization effect, order the following. four acids according to acidity \[\underset{I}{\mathop{HC\equiv CH}}\,\underset{II}{\mathop{C{{H}_{2}}=C{{H}_{2}}}}\,\underset{III}{\mathop{C{{H}_{3}}-C{{H}_{3}}}}\,\underset{IV}{\mathop{N{{H}_{3}}}}\,\]
A)
IV < III < II < I
done
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B)
III < 11 < IV < I
done
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C)
I < IV < II < III
done
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D)
III < IV < II < I
done
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question_answer 100) Amides are less basic than amines because
A)
a carbonyl group, donates electrons by resonance
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B)
the carbonyl group withdraws electrons by resonance
done
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C)
nitrogen does not have a lone pair of electrons
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D)
nitrogen has a full positive charge
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question_answer 101) Mendels pattern of inheritance systematically showed the progeny in
A)
square board
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B)
cross board
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C)
checker board
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D)
All of these
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question_answer 102) When a negro marries white, how many phenotypes are obtained?
A)
7
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B)
8
done
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C)
10
done
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D)
16
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question_answer 103) It is easier to engineer plants genetically as compared to animals because
A)
E. coli plasmids can serve as vectors in plant
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B)
Plants can be grown from a single cell in tissue culture
done
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C)
Agriculturally significant plants have been engineered
done
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D)
All of the above
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question_answer 104) Assertion [A] Burgundy mixture is also called soda bordeaux. Reason [R] Burgundy mixture is a modification of bordeaux mixture containing sodium phosphate instead of lime.
A)
Both A and R are correct and the R is a correct explanation of A
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B)
Both A and R are correct, but R is not a correct explanation of A
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C)
A is true, but R is false
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D)
Both A and R are false
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question_answer 105) Carina is
A)
outermost two petals of pea flower
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B)
a boat shaped structure of petals
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C)
the innermost two petals that are appressed together
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D)
Both [b] and [c]
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question_answer 106) What should be the genotype of a round seeded tall plant, which when crossed with a plant of similar genotype produces the following percentage of phenotypes? (tall round = 56.26% tall wrinkled = 18.75%, dwarf round = 18.75% dwarf wrinkled =6.25%)
A)
TtRr
done
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B)
TTrr
done
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C)
TTRr
done
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D)
TtRR
done
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question_answer 107) Gossypium hirsutum is
A)
old world tetraploid
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B)
new world tetraploid
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C)
old world diploid
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D)
new world diploid
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question_answer 108) Heart of cockroach is
A)
6-chambered
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B)
\[9-\] chambered
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C)
29-chambered
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D)
13-chambered
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question_answer 109)
Math the following simple epithelial tissues in column I with their occurrence in column II and choose the correct combination from the options give. Column I Column II A. Squamous 1. Intestinal glands B. Cuboidal 2. Trachea C. Columnar 3. Ovary D. Ciliated 4. Alveoli E. Pseudostratified 5. Bronchioles
A)
A-5 B-4 C-1 D-2 E-3
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B)
A-1 B-2 C-4 D-3 E-5
done
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C)
A-4 B-3 C-1 D-5 E-2
done
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D)
A-4 B-5 C-1 D-2 E-3
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question_answer 110) The most appropriate definition of neuroglial cell are that they are
A)
secretory cell
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B)
compound alveolar gland
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C)
non-sensory and supporting cell
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D)
sensory and supportinq cells
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question_answer 111) Potato is included in Solanaceae family because
A)
it is pentamerous
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B)
it is epipetalous
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C)
ovary is slightly diverted from its position
done
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D)
All of the above
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question_answer 112) The nature of cell occurring in medulla is
A)
suberised
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B)
liquefied
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C)
collenchymatous
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D)
parenchymatous
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question_answer 113) In cockroach, the longest podomere is
A)
coxa
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B)
tarsus
done
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C)
tibia
done
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D)
femur
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question_answer 114) The embryonated egg of Ascaris represents
A)
an egg with a juvenile
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B)
an egg with blastula
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C)
an egg with gastrula
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D)
an egg with an egg
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question_answer 115) The smallest plant division-Gymnosperm has how many species.
A)
640
done
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B)
90C
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C)
100
done
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D)
300
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question_answer 116) Sequence of taxonomic categories is
A)
division, class, family, tribe, order, genus, species
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B)
class, phylum, tribe, order, family, genus, specie
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C)
division, class, order, family, tribe, genus, species
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D)
phylum, order, class, tribe, family, genus, species
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question_answer 117) Classification given by Bentham and Hooker is
A)
nature
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B)
artificial
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C)
numerical
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D)
phylogenetic
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question_answer 118) Which of the following produces spores, but lacks vasculature?
A)
Fungi
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B)
Dicots
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C)
Pteridophytes
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D)
Gymnosperms
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question_answer 119) The phylogenetic system of classification was put forth by
A)
Aristotle
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B)
Carolus Linnaeus
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C)
Theophrastus
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D)
Adolf Engler and Karl PrantI
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question_answer 120) Meiosis II performs
A)
synthesis of DNA and centromere
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B)
separation of sex-chromosomes
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C)
separatin of homologous chromosomes
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D)
speparation of chromatids
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question_answer 121)
Consider the following statements and select the correct option. I. ER helps in the transport of substances, synthesis of lipoproteins, proteins and glycogen. II. Ribosomes are involved in protein synthesis. III. Mitochondria helps in oxidative phosphorylation and generation of ATP IV. The endomembrane system includes ER, Golgi complex, lysosomes, plasma membrane and vacuoles.
A)
I, II and III are correct
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B)
I alone is correct
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C)
III alone is correct
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D)
II alone is correct
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question_answer 122) Find out the wrongly matched pair.
A)
Primary metabolite-Ribose
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B)
Secondary metabolite-Anthocyanins
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C)
Protein-Insulin
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D)
Cellulose-Heteropolymer
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question_answer 123) Which are of the following sets of characters are applicable in metamorphosis of tadpole larva of frog and toads?
A)
Resorption of gills and lengthening of tail
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B)
Complex development of gill and lengthening of tail
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C)
Resorption of gills and resorption of tail
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D)
Complex development of gill and resorption of tail
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question_answer 124)
Match column I and column II and choose the right option. Column I Column II A. Rhizopus 1. Ascomycetes B. Penicillium 2. Basidiomycetes C. Ustilago 3. Deuteromycetes D. Alternaha 4. Phycomycetes
A)
A-4 B-3 C-1 D-2
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B)
A-4 B-3 C-1 D-2
done
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C)
A-4 B-1 C-2 D-3
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D)
A-2 B-3 C-4 D-1
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question_answer 125) The name of Smt. Thimmakka is associated with the
A)
agitations against hydroelectric project
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B)
planting and conservation of avenue trees
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C)
Appiko movement
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D)
Conservation of fauna and flora of the Western ghats
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question_answer 126)
Match the items of column I with column II and select the correct option. Column I Column II A. Electrostatic Precipitator 1. Removes gases like\[S{{O}_{2}}\] B. Scrubber 2. Reduces Automobile emission C. Catalytic converter 3.Removes particulate matter
A)
A-3 B-1 C-2
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B)
A-2 B-3 C-1
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C)
A-1 B-2 C-3
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D)
A-3 B-2 C-1
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question_answer 127) In ecological succession the climax community is beat recognised by the following state.
A)
\[P>R\]
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B)
\[P\ne R\]
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C)
\[P=R\]
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D)
\[P<R\]
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question_answer 128) Sound above what level is considered hazardous noise pollution?
A)
Above 120 dB
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B)
Above 80 dB
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C)
Below 30 dB
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D)
Above 150 dB
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question_answer 129) Read the two statements A and B. Statement A Diversity observed in the entire geographical area, is called gamma diversity. Statement B Biodiversity decreases from high altitude to low altitude.
A)
Statements B is correct, A is wrong
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B)
Statements A is correct, B is wrong
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C)
Both the statements A and B are wrong
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D)
Both the statements A and B are correct
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question_answer 130) Green muffler is used against, which type of pollution?
A)
Soil
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B)
Air
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C)
Noise
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D)
Water
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question_answer 131) Black lung disease is common in
A)
coal miners
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B)
farmers
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C)
refinery workers
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D)
petrochemical industry
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question_answer 132) The purpose of biological treatment of waste water is to
A)
reduce BOD
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B)
increase BOD
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C)
increase sedimentation
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D)
reduce sedimentation
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question_answer 133) Pedology refers to
A)
study of water
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B)
study of fossils
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C)
study of soil
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D)
study of population
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question_answer 134) The aquatic organisms that can actively swim against the water current is
A)
plankton
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B)
benthos
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C)
neuston
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D)
nekton
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question_answer 135) Lichens are described as indicator of
A)
water pollution
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B)
air pollution
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C)
soil pollution
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D)
agriculture productivity
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question_answer 136) Ethyl alcohol is obtained commercially on a large scale from
A)
maize
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B)
bajra
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C)
grapes
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D)
sugar cane
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question_answer 137) Insect resistance transgenic cotton has been produced by inserting a piece of DNA from
A)
an insect
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B)
a virus
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C)
a wild relative of cotton
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D)
a bacterium
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question_answer 138) The technique of production of monoclonal antibodies was developed by
A)
Milstein and Kohler
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B)
Watson and Crick
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C)
Fredrick and Miescher
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D)
Bentham and Miescher
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question_answer 139) Find the incorrect statement.
A)
Calcitonin is a medically useful recombinant product in the treatment of infertility
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B)
Bt toxin is a biodegradable insecticide obtained from Bacillus thuringiensis
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C)
Trichoderma sp. Is a biocontrol agent for fungal diseases of plant
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D)
Gene therapy is a genetic engineering technique used to treat disease at molecular level by replacing defective genes with normal genes.
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question_answer 140) Which of the following DNA sequences qualifies be designated as a palindrome?
A)
\[5GACGAG-3\,3-CTGGTC-5\]
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B)
\[5-AGCGCT-3\,3-TCGCGA-5\]
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C)
\[3-GACCAG-5\]in one strand
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D)
\[5-GACCAG-3\]in one strand
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question_answer 141) GAATTC is the recognisation site for which of the following restriction endonuclease?
A)
Bam I
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B)
Hal III
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C)
Eco Rl
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D)
Hind III
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question_answer 142) Which of the following is produced by I genetically engineered bacteria?
A)
ADH
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B)
Insulin
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C)
Thyroxine
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D)
Glucagon
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question_answer 143) Aspergillus niger produces
A)
fumaric acid
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B)
acetic acid
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C)
lactic acid
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D)
citric acid and gluconic acid
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question_answer 144) cDNA is
A)
circular DNA
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B)
cloned DNA
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C)
recombinant DNA
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D)
formed by reverse transcriptase
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question_answer 145) Chagas disease is caused by
A)
T. rhodesiense
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B)
Trypanosoma cruzi
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C)
Leishmania donovanf
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D)
T. gambiense
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question_answer 146) Which of the following is correct?
A)
Diabets-Sugar free
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B)
Heart attack-Radiation therapy
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C)
Leukemia-Skin cancer
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D)
Rheumatic fever-Defective pacemaker
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question_answer 147) Which is a viral disease?
A)
Tetanus
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B)
Cholera
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C)
Measles
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D)
Tuberculosis
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question_answer 148) The treatment of cancer with X-rays or gamma rays is called
A)
surgery
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B)
chemotherapy
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C)
hormone therapy
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D)
radiation theraphy
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question_answer 149)
Match the column I (bacteria) with the column II (diseases) and select the correct option. Column I Column II A Treponema pallidum 1. Remove plague B. Yersinia pestis 2. Anthrok C. Bacillus anthracis 3. Syphilis D. Vibrio cholerae 4 Cholera
A)
A-4 B-3 C-1 D-2
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B)
A-3 B-1 C-2 D-4
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C)
A-1 B-3 C-2 D-4
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D)
A-2 B-3 C-1 D-4
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question_answer 150) Honey is
A)
neutral
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B)
alkaline
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C)
acidic
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D)
basic after some days
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question_answer 151) Wilsons disease occurs due to defective metabolism of
A)
\[M{{g}^{2+}}\]
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B)
\[Z{{n}^{2+}}\]
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C)
\[F{{e}^{2+}}\]
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D)
\[C{{u}^{2+}}\]
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question_answer 152) Emasculation means
A)
removal of anthers
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B)
removal of pistils
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C)
removal of carpels
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D)
All of these
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question_answer 153)
Match column I with column II and choose the correct answer. Column I Column II A. Neoplasm 1. Haematopoietic cell tumours B. Benign tumour 2. Bone cartage, tissue cancer C. Carcinomas 3. Malignant tumour D. Sarcomas 4. Cancer of epithelid tissues E. Lymphomas 5. Non-cancerous tumour 6. Initiation bf new tumours
A)
A-6 B-4 C-3 D-2 E-1
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B)
A-6 B-3 C-4 D-2 E-1
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C)
A-3 B-5 C-4 D-2 E-1
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D)
A-3 B-5 C-4 D-2 E-3
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question_answer 154) Explants are
A)
uprooted plant parts for transpiration
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B)
plants collected after harvest
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C)
exploited parts of a plant
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D)
small parts grown for tissue culture
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question_answer 155) Kadiri-1, kadiri-2 are the varieties of
A)
red gram hybrids
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B)
rice hybrids
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C)
ground nut hybrids
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D)
sorghum hybrids
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question_answer 156) Which of the following is not matched correctly?
A)
Winged bean-Wood used for timber purposes
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B)
Guayle-Yields latex, which can be converted to rubber.
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C)
Jojoba-Seeds yields liquid wax
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D)
Leucaena-Wood is a source of timber, rayon and paper pulp.
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question_answer 157) Leucaena leucocephala is
A)
a small leguminous tree with edible fruits and seeds
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B)
a fodder plant as its pods and leaves are consumed by cattle
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C)
called subabul in India
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D)
All of the above
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question_answer 158) Pusa sawani is a hybrid variety of
A)
flat bean
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B)
maize
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C)
bhindi
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D)
Brassica
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question_answer 159) The pesticides are considered as hazardous because
A)
they affect the target organism only
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B)
they persist in the environment
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C)
they do not kill natural enemy population
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D)
they do not enter the food chain
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question_answer 160) What is Agent Orange?
A)
A biodegradable insecticide
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B)
A weedicide containing dioxin
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C)
Colour used in fluorescent lamps
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D)
Hazardous chemical used in luminous paints
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question_answer 161) The book Philosophic Zoologique is written by
A)
Linneaus
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B)
Malthus
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C)
Darwin
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D)
Lamarck
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question_answer 162) Improvement of human race is called
A)
human demography
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B)
human heridity
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C)
eugenics
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D)
euthenics
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question_answer 163) An environmental agent, which triggers transcription from an operon, is a
A)
inducer
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B)
regulator
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C)
depressor
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D)
controlling element
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question_answer 164) Acrosome is made up of
A)
centrioles
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B)
ribosomes
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C)
mitochondria
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D)
Golgi bodies
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question_answer 165) The mullerian duct in the female amniotes develops into
A)
oviduct
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B)
ureter
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C)
uterus .
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D)
seminal receptacle
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question_answer 166)
Which of the following statements is/are true? I. Endothecium lies behind epidermis. II. Fusion of egg with male gamete is called apogamy. III. Synergids are haploid. IV. The point at which funicle touches the ovule is raphe.
A)
I and II
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B)
I and III
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C)
Only I
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D)
I and IV
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question_answer 167)
Consider the following statements and choose the correct option. I. Rhizome in ginger serves as an organ of vegetative reproduction. II. The genetic constitution of a plant is unaffected in vegetative propagation. III. Totipotency of cells enables us to micropropagate plants.
A)
II and III are correct
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B)
I and III are correct
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C)
I, II and III are correct
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D)
Only I is correct
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question_answer 168)
Select the correct order of endosperm types.
A)
Free nuclear, cellular, helobial
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B)
Cellular, free nuclear, helobial
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C)
Cellular, helobial, free nuclear
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D)
Helobial, free nuclear, cellar
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question_answer 169) Double fertilisation in angiosperm plant means
A)
Fusion of egg cell twice with male gametes
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B)
Fusion of two egg cells with two male gametes
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C)
Fusion of one male gamete with the egg cell and the other male gamete with secondary nucleus
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D)
Fusion of one mate gamete with the egg cell and the other male gamete with the synergid
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question_answer 170) Xenogamy is
A)
pollination between two different flowers of same plant on same branch
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B)
a mechanism of parthenocarpy
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C)
pollination between anthers and stigma of same flowers
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D)
pollination between two flowers of tw0 different
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question_answer 171) Perisperm is
A)
persistent nucellus
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B)
peripheral part of endosperm
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C)
remnant of endosperm
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D)
disintegrated secondary nucleus
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question_answer 172) Malacophily is the name given to pollination by
A)
bats
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B)
snails
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C)
birds
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D)
insects
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question_answer 173) Generative cell was destroyed by laser but a normal pollen tube was still formed because
A)
laser beam stimulates growth of pollen tube
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B)
the region of emergence of pollen tube is not harmed
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C)
vegetative cell is not damaged
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D)
contents of killed generative cell stimulate pollen
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question_answer 174)
Refer the given figure and select the correct option. Parent cell
A)
It is a type of asexual reproduction
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B)
It is a type of parthenogenesis
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C)
Both [a] and [b]
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D)
The off springs can also be called as clone
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question_answer 175)
Match the following and select correct option. Column I Column II A. B. C. D. Accessory duct Accessory glands Spermatids Primary spermatocytes 1. 2. 3. 4. 5 Seminal vesicles Vas deferens Uterus 23 chromosomes 46 chromosomes
A)
A-4,3 B-5 C-2 D-1
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B)
A-4,5 B-2 C-1 D-3
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C)
A-2,1 B-3 C-5 D-4
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D)
A-2,3 B-1 C-4 D-5
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question_answer 176) Caput epididymis is a narrow tubule present on the inner side of testis. It is present in between
A)
vasa efferentia and carpus epididymis
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B)
rete testis and vasa efferentia
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C)
vasa efferentia and rete testis
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D)
cauda epididymis and vas deferens
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question_answer 177) Compare the statements A and B. Statement A When the urine moves through the descending limb, it becomes hypertonic and as it passes through the ascending limb of Henles loop. It becomes hypotonic. Statement B. The descending limb is permeable to sodium ions, while the ascending limb is impermeable to sodium ions.
A)
Statement A is wrong and B is correct
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B)
Statement A is correct and B is wrong,
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C)
Both Statements A and B are wrong
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D)
Both Statements A and B are correct
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question_answer 178) The scapula is a large triangular flat bone situated in the dorsal part of the thorax between.
A)
Fifth and sixth rib
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B)
Second and fifth rib
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C)
Third and fourth rib
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D)
Second and seventh rib
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question_answer 179) The example of pivot joint is
A)
ankle joints
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B)
hip joints
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C)
radio-ulna joints
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D)
Metatarsophalangeal joints
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question_answer 180)
Read the following statements regarding muscle proteins. I. Actin is a thin filament and is made up of two f-actins. II. The complex protein, tropomyopin is distributed at regular intervals on the troponin. III. Myosin is a thick filament, which is also a polymerised protein. IV. The globular head of meromyosin consists of Light Meromyosin (LMM).
The above statements are correct.
A)
I, II and IV
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B)
I and III
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C)
I, II and III
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D)
II and IV
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question_answer 181) The third ventricle of the brain is situated in the
A)
roof of metencephalon
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B)
base of myelencephalon
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C)
roof of diencephalon
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D)
base of telencephalon
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question_answer 182) ..... accelerates heart beat due to stimulation of adrenal, medula by sympathetic nerves.
A)
Thyroxide
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B)
Vasopressin
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C)
Adrenaline
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D)
Thyroxine
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question_answer 183) MSH is secreted by
A)
middle lobe of pituitary
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B)
anterior lobe of pituitary
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C)
endostyle
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D)
posterior lobe P of pituitary
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question_answer 184) This trace element is needed for insulin to exert its maximal effect in glucose uptake.
A)
Chromium
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B)
Selenium
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C)
Vanadium
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D)
Molybdenum
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question_answer 185) The number of occipital condyles in man is/are
A)
two
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B)
one
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C)
four
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D)
three
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question_answer 186) Cereals during germination derive their food from
A)
soil
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B)
starch
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C)
embryo
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D)
aleurone grains
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question_answer 187) On the earth, the amount of carbon fixed by photosynthesis is nearly
A)
\[7\times {{10}^{13}}kg/yr\]
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B)
\[7\times {{10}^{13}}kg/yr\]
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C)
\[7\times {{10}^{10}}kg/yr\]
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D)
\[7\times {{10}^{13}}kg/yr\]
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question_answer 188) Which one of the following theories for ascent of sap was proposed by an eminent Indian scientist JC Bose?
A)
Relay pump theory
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B)
Pulsation theory
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C)
Root pressure theory
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D)
Transpiration pull theory
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question_answer 189)
Match the name of the scientists given under column I with their important contributions given under columb II. Choose the answer, which gives correct combination of the alphabets. Column I Column II A. Peter Mitchell 1. Law of (Smiting factor B. Blackmann 2. Dark reaction of photosynthesis C. Daniel Arnon 3. Photosynthetic phosphorylation D. Melvin Calvin 4. Chemiosmotic hypothesis
A)
A-4 B-1 C-3 D-2
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B)
A-2 B-3 C-1 D-4
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C)
A-1 B-3 C-4 D-2
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D)
A-1 B-4 C-2 D-3
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question_answer 190) In Electron Transport System (ETS), which of the following cytochrome reacts with oxygen?
A)
\[Cyt-{{a}_{3}}\]
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B)
\[Cyt-f\]
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C)
\[Cyt-b\]
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D)
\[Cyt-{{b}_{6}}\]
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question_answer 191) The number of NADPH molecules that are used during the conversion of carbon dioxide into one molecules of glucose.
A)
4
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B)
1
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C)
12
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D)
6
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question_answer 192) Which of the following is not a hereditary disease?
A)
Cretinism
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B)
Cystic fibrosis
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C)
Haemophilia
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D)
Thalassemia
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question_answer 193) Percentage of recombination between A and B is 9%, A and C is 17%, B and C is 26%, then the arrangement of genes is
A)
ACB
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B)
BAC
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C)
BCA
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D)
ABC
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question_answer 194) Phenotypic of Downs syndrome increases when the maternal age is
A)
3:.1
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B)
1 :1
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C)
1:2: 1
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D)
2: 1
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question_answer 195) The concept of one-gene-one enzyme was proposed by
A)
Leeuwenhoek
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B)
Watson and Crick
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C)
Carl Correns
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D)
Beadle and Tatum
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question_answer 196) The enzyme decarboxylase catalyses
A)
fumaric acid to malic acid
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B)
malic acid to oxaloacetic acid
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C)
conversion of citric acid to c/s aconitic acid
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D)
oxalosuccinic acid to \[\alpha -\]ketoglutaric acid
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question_answer 197) The loss of one single chromosome cretes a condition called
A)
haploid
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B)
nullisomy
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C)
monosomy
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D)
trisomy
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question_answer 198) Dental formula of human being is
A)
12\[l2,C1\,PM3,\,P3\]
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B)
\[l2,C2\,PM3,\,P1\]
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C)
\[l3,C1\,PM2,\,P3\]
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D)
\[l3,C2\,PM1,\,P3\]
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question_answer 199) Respiratory movements are under the control of
A)
medulla oblongata
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B)
carpus callosum
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C)
cerebral hemispheres
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D)
crura cerebri
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question_answer 200)
Identify the human development stage shown below as well as the related right place of its occurrence in a normal pregnant woman, and select the right option for the two, together.
A)
Late morula - Middle part of fallopian tube
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B)
Blastula - End part of fallopian tube
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C)
Blastocyst - Uterine wall
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D)
8-celled morula - Starting point of Fallopian tube
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