question_answer 1) An electric generator is based on
A)
Faradays law of electromagnetic induction
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B)
motion of charged particles in electromagnetic field
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C)
Newtons laws of motion
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D)
fission of uranium by slow neutrons
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question_answer 2) Which of the following can be zero, when a panicle is in motion for some time
A)
Distance
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B)
Displacement
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C)
Speed
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D)
None of these
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question_answer 3) An object of mass 10 kg moves at a constant speed of 10 m/s. A constant force, that acts for 4 s on the object, gives it a speed 2 m/s in opposite direction. The force acting on the object is
A)
-3 N
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B)
-30 N
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C)
3 N
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D)
30 N
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question_answer 4) A car of mass 1000 kg moves on a circular track of radius 20 m. If the coefficient of friction is 0.64, then the maximum velocity with which the car can move is
A)
22.4 m/s
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B)
5.6 m/s
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C)
11.2 m/s
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D)
none of these
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question_answer 5) A particle is executing SHM. Then, the graph of velocity as a function of displacement is a/an
A)
straight line
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B)
circle
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C)
ellipse
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D)
hyperbola
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question_answer 6) A long spring, when stretched by a distance x, has potential energy U. On increasing the stretching to rue, the potential energy of the spring will be
A)
\[\frac{U}{n}\]
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B)
\[nU\]
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C)
\[{{n}^{2}}U\]
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D)
\[\frac{U}{{{n}^{2}}}\]
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question_answer 7) A body cools from \[50{}^\circ C\] to \[49{}^\circ C\] in 5 s. How long will it take to cool from \[40{}^\circ C\] to\[39{}^\circ C\]? Assume temperature of surroundings to be \[30{}^\circ C\] and Newtons law of cooling is valid
A)
2.5 s
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B)
10 s
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C)
20 s
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D)
5 s
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question_answer 8) A sound has an intensity of\[2\times {{10}^{-8}}W\text{/}{{m}^{2}}\]. Its intensity level in decibels is\[\left( {{\log }_{10}}2=0.3 \right)\]
A)
23
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B)
3
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C)
43
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D)
4.3
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question_answer 9) A ray reflected successively from two plane mirrors inclined at a certain angle undergoes a deviation of \[240{}^\circ \]. Then, the number of images observable is
A)
3
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B)
5
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C)
7
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D)
9
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question_answer 10) A concave mirror of focal length f in vacuum is placed in a medium of refractive index 2. Its focal length in the medium is
A)
\[\frac{f}{2}\]
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B)
\[f\]
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C)
\[2f\]
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D)
\[4f\]
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question_answer 11) In the lowest energy level of hydrogen atom, the electron has the angular momentum
A)
\[\frac{\pi }{h}\]
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B)
\[\frac{h}{\pi }\]
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C)
\[\frac{h}{2\pi }\]
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D)
\[\frac{2\pi }{h}\]
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question_answer 12) Three identical charges are placed at the comers of an equilateral triangle. If the force between any two charges is F, then the net force on each will be
A)
\[\sqrt{2}\]F
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B)
2 F
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C)
\[\sqrt{2}\]F
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D)
3 F
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question_answer 13) The resistance of the fuse wire is
A)
Low
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B)
moderate
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C)
zero
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D)
very high
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question_answer 14) If 1A of current is passed through \[CuS{{O}_{4}}\]solution for 10 s, the number of copper atoms deposite at the cathode will be about
A)
\[1.6\times {{10}^{20}}\]
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B)
\[8\times {{10}^{19}}\]
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C)
\[3.1\times {{10}^{19}}\]
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D)
\[6.2\times {{10}^{19}}\]
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question_answer 15)
A rectangular loop carrying a current i is situated near a long straight wire such that the wire is parallel to one of the sides of the loop and is in the plane of the loop. If a steady current I is established in the wire as shown in the figure, the loop will
A)
rotate about an axis parallel to the wire
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B)
move away from the wire
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C)
move towards the wire
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D)
remain stationary
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question_answer 16) Two points A and B are situated at distance \[x\] and 2\[x\] respectively from the nearer pole of a magnet 2 cm long. The ratio of magnetic field at A and B is:
A)
4 : 1 exactly
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B)
4 : 1 approximately
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C)
8 : 1 exactly
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D)
8 : 1 approximately
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question_answer 17) The inductance of a coil is proportional to
A)
its length
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B)
the number of turns
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C)
the resistance of the coil
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D)
the square of the number of turns
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question_answer 18) On increasing the reverse bias to a large value in a p-n junction diode current
A)
increases slowly
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B)
remains fixed
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C)
suddenly increases
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D)
decreases slowly
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question_answer 19) The half-value period of a radioactive nucleide is 3 h. In 9 h its activity will be reduced by a factor of
A)
\[\frac{1}{9}\]
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B)
\[\frac{1}{27}\]
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C)
\[\frac{1}{6}\]
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D)
\[\frac{1}{8}\]
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question_answer 20) An n-type semiconductor is formed by adding impurity materials
A)
aluminium, boron or selenium
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B)
aluminium, boron or indium
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C)
phosphorus, antimony or arsenic
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D)
cobalt, aluminium or selenium
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question_answer 21) According to Bohrs theory (assuming infinite mass of the nucleus), the frequency of the second line of the Balmer series is:
A)
\[6.16\times {{10}^{14}}Hz\]
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B)
\[6.16\times {{10}^{13}}Hz\]
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C)
\[6.16\times {{10}^{10}}Hz\]
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D)
\[6.16\times {{10}^{16}}Hz\]
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question_answer 22) A dip needle in a plane perpendicular to magnetic meridian will remain
A)
vertical
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B)
horizontal
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C)
in any direction
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D)
at an angle of dip to the horizontal
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question_answer 23) If the end A of a wire is irradiated with a-q and the other end B is irradiated with p-n then
A)
a current will flow from A to B
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B)
there will be no current in the wire
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C)
a current will flow from B task q
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D)
a current will flow from each end to the midpoint of the wire
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question_answer 24) A least distance of distinct vision is 25 cm. The focal length of a convex lens is 5 cm. It can act as a simple microscope of magnifying power
A)
4
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B)
5
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C)
6
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D)
none of these
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question_answer 25) A person standing in front of a mirror finds his image larger than himself. This implies that the mirror is
A)
plane
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B)
convex
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C)
concave
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D)
cylindrical with bulging side outwards
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question_answer 26) A Carnot engine working between 300 and 600 K has a work output of 800 joule per cycle. The amount of heat energy supplied from the source to engine in each cycle is
A)
800 J
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B)
1600 J
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C)
3200 J
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D)
6400 J
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question_answer 27) A body floats with one third of its vote outside water and 3/4 of its volume outside another liquid. The density of other liquid is
A)
\[\frac{9}{4}g/cc\]
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B)
\[\frac{4}{9}g/cc\]
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C)
\[\frac{8}{3}g/cc\]
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D)
\[\frac{3}{8}g/cc\]
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question_answer 28) If the maximum velocity and acceleration particle executing SHM are equal in magnitude the time period will be
A)
1.57 s
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B)
3.14 s
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C)
6.28 s
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D)
12.56 s
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question_answer 29) The angle of projection at which the horizontal range and the maximum height a projectile are equal is
A)
\[30{}^\circ \]
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B)
\[45{}^\circ \]
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C)
\[60{}^\circ \]
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D)
\[76{}^\circ \]
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question_answer 30) The largest and the shortest distances of the earth from the sun are \[{{r}_{1}}\] and \[{{r}_{2}}\]. Its distance from the sun when it is at the perpendicular the major axis of the orbit drawn from the sun, is
A)
\[\frac{{{r}_{1}}+{{r}_{2}}}{4}\]
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B)
\[\frac{{{r}_{1}}{{r}_{2}}}{{{r}_{1}}+{{r}_{2}}}\]
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C)
\[\frac{2{{r}_{1}}{{r}_{2}}}{{{r}_{1}}+{{r}_{2}}}\]
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D)
\[\frac{{{r}_{1}}+{{r}_{2}}}{3}\]
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question_answer 31) If the heat of solution for one mole of KCl in 20 moles of water and 200 moles of water was + 3.80 kcal and +4.40 kcal respectively, then the heat of dilution is
A)
+ 8.20 kcal
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B)
- 8.2 kcal
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C)
+ 0.60 kcal
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D)
- 0.60 kcal
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question_answer 32) The size of an octahedral void formed in a closest packed lattice as compared to tetrahedral void is
A)
equal
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B)
smaller
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C)
larger
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D)
not definite
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question_answer 33) A substance will be deliquescent if its vapour pressure is
A)
equal to the atmospheric pressure
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B)
equal to that of water vapour in the air
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C)
greater than that of water vapour in the air
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D)
less than that of water vapour in the air
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question_answer 34) The weight of iron which will be converted into its oxide \[(F{{e}_{3}}{{O}_{4}})\]by the action of 18 g of steam on it will be (at. wt. of Fe = 56)
A)
168 g
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B)
84 g
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C)
42 g
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D)
21 g
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question_answer 35) Cupellation process is used in the metallurgy of
A)
Cu
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B)
Ag
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C)
Al
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D)
Fe
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question_answer 36) Which of the following two are is structural?
A)
\[Xe{{F}_{2}},\,IF_{2}^{-}\]
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B)
\[N{{H}_{3}},\,B{{F}_{3}}\]
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C)
\[CO_{3}^{2-},\,\,SO_{3}^{2-}\]
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D)
\[PC{{l}_{5}},\,IC{{l}_{5}}\]
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question_answer 37) If one litre of air is passed repeatedly over heated copper and magnesium till no further reduction in volume takes place. The volume finally obtained would be approximately
A)
800 mL
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B)
200 mL
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C)
10 mL
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D)
zero
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question_answer 38) Which one of the following transition metal ions is diamagnetic?
A)
\[C{{o}^{2+}}\]
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B)
\[N{{i}^{2+}}\]
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C)
\[C{{u}^{2+}}\]
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D)
\[Z{{n}^{2+}}\]
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question_answer 39) The right order of the solubility of sulphates of alkaline earth metals in water is
A)
Be > Ca > Mg > Ba > Sr
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B)
Mg > Be > Ba > Ca > Sr
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C)
Be > Mg > Ca > Sr > Ba
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D)
Mg > Ca > Ba > Be > Sr
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question_answer 40) On adding \[AlC{{l}_{3}}\] to water
A)
the ionization of water increases
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B)
the ionization of water decreases
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C)
the ionization of water remains constant
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D)
the ionic product of water increases
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question_answer 41) In nitroprusside ion, the iron and NO exist as\[F{{e}^{2+}}\] and \[N{{O}^{+}}\] rather than \[F{{e}^{3+}}\]and\[NO\]. These forms can be differentiated by
A)
estimating the concentration of iron
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B)
measuring the concentration of \[C{{N}^{-}}\]
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C)
measuring the solid state magnetic moment
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D)
thermally decomposing the compound
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question_answer 42) Which of the following is not an organometallic compound?
A)
Ethyl magnesium bromide
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B)
Tetraethyl lead
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C)
Sodium ethoxide
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D)
Trimethyl aluminium
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question_answer 43) 8.2 L of an ideal gas weigh 9.0 at 300 K and 1 atm pressure. The molecular mass of gas is
A)
9
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B)
27
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C)
54
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D)
81
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question_answer 44) Which of the following liberates methane on treatment with water?
A)
Silicon carbide
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B)
Calcium carbide
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C)
Beryllium carbide
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D)
Magnesium carbide
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question_answer 45) Inert pair effect plays an important role in case of
A)
phosphorus
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B)
bismuth
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C)
antimony
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D)
arsenic
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question_answer 46)
on dehydration with conc. \[{{H}_{2}}S{{O}_{4}}\] predominantly forms
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 47) Pick out the correct statement An alloy of Na + K is
A)
liquid at room temperature
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B)
used in specially designed thermometer
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C)
both (a) and (b)
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D)
none of the above
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question_answer 48) Schiffs base and Schiffs reagent are
A)
structural isomers
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B)
anomers
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C)
diastereomers
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D)
entirely different compounds
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question_answer 49) Propene, \[C{{H}_{3}}CH=C{{H}_{2}}\]can be converted into 1-propanol by oxidation. Indicate which set of reagents amongst the following is ideal to effect the above conversion?
A)
\[KMn{{O}_{4}}\](alkaline)
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B)
Osmium tetroxide \[(Os{{O}_{4}}\text{/}C{{H}_{2}}C{{l}_{2}})\]
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C)
\[{{B}_{2}}{{H}_{6}}\] and alk. \[{{H}_{2}}{{O}_{2}}\]
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D)
\[{{O}_{3}}\text{/}Zn\]
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question_answer 50) When hydrochloric acid gas is treated with propene in presence of benzoyl peroxide, it gives
A)
2-chloropropane
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B)
allyl chloride
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C)
no reaction
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D)
n-propyl chloride
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question_answer 51) An ester is boiled with KOH. The product is cooled and acidified with concentrated HCl. A white crystalline acid separates. The ester is
A)
methyl acetate
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B)
ethyl acetate
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C)
ethyl formate
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D)
ethyl benzoate
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question_answer 52) A non-copper alloy is
A)
solder
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B)
brass
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C)
bronze
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D)
belt metal
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question_answer 53) Which of the following is a condensation homopolymer?
A)
Nylon-6
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B)
Nylon-66
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C)
Nylon-610
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D)
Dad-on
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question_answer 54) A simple method to remove peroxides from ethers is to treat them with an aqueous solution of
A)
\[KI\]
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B)
\[KCNS\]
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C)
\[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\]
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D)
\[B{{r}_{2}}\]
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question_answer 55) Isobutyl bromide may be obtained from isobutylene and HBr in the presence of
A)
peroxide
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B)
hydroquinone
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C)
diphenyl amine
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D)
all of these
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question_answer 56) Which of the following has lowest octane number?
A)
Iso-octane
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B)
n-heptane
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C)
n-hexane
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D)
n-hexadecane
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question_answer 57) Which of the following is the most reactive towards ring nitration?
A)
Benzene
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B)
Mesitylene
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C)
Toluene
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D)
m-xylene
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question_answer 58) A solution of 500 mL of 0.2 M KOH and 500 mL of 0.2 M HCl is mixed and stirred; the rise in temperature is \[{{T}_{1}}\]. The experiment is repeated using 250 mL each of solution, the temperature rise is \[{{T}_{2}}\]. Which of the following is true?
A)
\[{{T}_{1}}={{T}_{2}}\]
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B)
\[{{T}_{1}}=2{{T}_{2}}\]
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C)
\[{{T}_{1}}=4{{T}_{2}}\]
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D)
\[{{T}_{2}}=9{{T}_{1}}\]
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question_answer 59) Bones glow in dark because
A)
they contain shining material
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B)
they contain red phosphorus
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C)
they contain white phosphorus which undergoes slow combustion in contact with air
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D)
white phosphorus changes to red phosphorus
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question_answer 60) Superconductors are derived from compounds of
A)
p-block elements
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B)
lanthanides
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C)
acrinides
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D)
transition elements
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question_answer 61) The first live healthy cloned mammal of the world was
A)
Molly sheep
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B)
Dolly sheep
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C)
Polly sheep
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D)
A monkey
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question_answer 62) The maintenance of internal favourable conditions, by a self-regulated mechanism, inspite of the fact that there are changes in the environment is called
A)
entropy
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B)
homeostates
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C)
enthalpy
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D)
steady state
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question_answer 63) Two morphologically similar closely related sympatric populations which are reproductively isolated and cant introduced to produce fertile hybrid are called
A)
sibling species
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B)
allopatric species
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C)
morphospecies
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D)
sympatric species
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question_answer 64) Free living non-symbiotic aerobic non-photosynthetic nitrogen fixing bacteria in soils is
A)
Azotobacter
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B)
Rhizobium
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C)
Closridium
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D)
Anabaena
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question_answer 65) When the mycelium of Rhizopus oryzae grows submerged in a nutritive medium such as sugar solution the young coenocytic hyphae develop septa and divide into short mulrinucleate segment known as
A)
oidia
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B)
endospores
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C)
exospores
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D)
conidia
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question_answer 66) Viruses cannot multiply of their own because they
A)
are dead
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B)
do not have sex organ and gametes
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C)
lack genetic material
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D)
lack cellular machinery to use their own genetic material
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question_answer 67) A structure absent in angiosperm is
A)
archegonium
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B)
pistil
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C)
megagametophyte
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D)
micro- gametophyte
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question_answer 68) What is mitoplast?
A)
Another name of mitochondria
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B)
Membraneless mitochondria
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C)
Mitochondria without outer membrane
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D)
Mitochondria without inner membrane
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question_answer 69) Synaptonemal complex is a ribonucleo protein structure reported by Moses 1956. It is visible from
A)
leptotene through diplotene
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B)
pachytene through diplotene
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C)
zygotene through pachytene
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D)
diplotene through metaphase
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question_answer 70) A tree growing in Indian Botanical Garden, Sibpur (Howrah, Calcutta) with age over 200 yr, circumference 404 m, prop roots 1,600 and whose main stem has decayed is
A)
Ficus benghalensis
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B)
Ficus religiosa
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C)
Eucalyptus regnans
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D)
No such tree exist
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question_answer 71) The number of pollen grains produced by head inflorescence of Asteraceae (Compositae) having 10 flowers. If each anther produces 20 pollen grains are
A)
300
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B)
500
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C)
800
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D)
1,000
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question_answer 72) Ovary is obliquely placed in/distortion of ovary occurs in
A)
Ranunculaceae
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B)
Brassicaceae
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C)
Compositae
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D)
Solanaceae
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question_answer 73) Seeds which are able to withstand reduction in moisture and temperature are called:
A)
dormant seeds
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B)
orthodox seeds
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C)
recalcitrant seeds
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D)
non-viable seeds
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question_answer 74) Trophocytes, mycetocytes, oenocytes and urate cells, are found in the fat body of cockroach. Which statement is true?
A)
Trophocytes contain reserve food
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B)
Mycetocytes contains symbiotic bacteria
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C)
Oenocytes secrete wax and urace cells contains uric acid
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D)
all of the above
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question_answer 75) Cockroach has a stomadaeal valve between
A)
crop and gizzard
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B)
gizzard and mesenteron
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C)
mesenteron and ileum
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D)
ileum and colon
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question_answer 76) Spermathecae of earthworm take pan in
A)
collection of sperms of other animals
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B)
collection of sperms of the same animals
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C)
sperm maturation
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D)
fertilization
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question_answer 77) Which of the following has the highest water potential?
A)
1 M salt solution
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B)
1M sugar solution
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C)
Distilled water
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D)
1M sugar solution with 2-3 bars pressure applied to it
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question_answer 78) \[{{C}_{4}}\] plants can absorb \[C{{O}_{2}}\]from
A)
its much low concentration
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B)
its much high concentration
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C)
carbonates
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D)
bicarbonates
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question_answer 79) Which of the following physiological effects is caused in plants by gibberellic acid?
A)
Shortening of genetically tall plants
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B)
Rooting in stem cuttings
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C)
Elongation of genetically dwarf plants
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D)
Yellowing of young leaves
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question_answer 80) Red drop is
A)
drop in flowering of SDP when red light is given in the dark period
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B)
drop in flowering in LDP when dark period is interrupted by red light
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C)
fall in the rate of photosynthesis when monochromatic light of red region is given to the plant
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D)
none of the above
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question_answer 81) LSD is derived from ergot, an extract got from fruiting body of fungus Claviceps purpurea, however, bhang, ganja and charas are obtained from the dried .......... of Cannatris indica
A)
leaves and flower
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B)
leaves
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C)
flowers
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D)
stems
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question_answer 82) Which is correct match?
A)
Wilt of pigeon pea \[\to \]Phytophthora infestans
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B)
Late blight of potato\[\to \] Fusarium udum
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C)
Citrus canker \[\to \]Xanrhomonos axonopodis
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D)
Soft rot of sugarcare \[\to \]Anguina tritici
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question_answer 83) Multiple shoots are produced in meristem culture because the culture medium contains
A)
cytokinin for overcoming apical dominance
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B)
auxin for proliferation of meristem
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C)
auxin for overcoming apical dominance
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D)
\[G{{A}_{3}}\]for proliferation of meristem
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question_answer 84) Pancoats syndrome is associated with
A)
neophobia
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B)
neophrenia
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C)
neoplasm
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D)
neophelium
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question_answer 85) Bile can be prevented to pass into duodenum by
A)
pyloric valve
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B)
sphincter of Boyden
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C)
sphincter of Oddi
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D)
cardiac sphincter
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question_answer 86) In lungs, air is separated from venous blood by
A)
squamous epithelium + tunica externa of blood vessel
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B)
squamous epithelium + endothelium of blood vessel
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C)
transitional epithelium + tunica medica of blood vessel
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D)
columnar epithelium + 3 layered wall of blood vessel
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question_answer 87) Bicarbonates formed inside erythrocytes passes out into plasma while chloride of plasma pass into erythrocytes. The phenomenon is called
A)
bicarbonate shift
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B)
Hamburger phenomenon
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C)
carbochlorosis
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D)
none of the above
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question_answer 88) In mammals the opening of post caval in the right auricle is guarded by
A)
mitral valve
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B)
the besius valve
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C)
eustachius valve
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D)
bicupid valve
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question_answer 89) Abnormal rise in white blood cells is
A)
leukaemia
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B)
polycythemia
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C)
anaemia
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D)
pneumonia
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question_answer 90) The kidneys not only remove the waste product from the blood but also play a very important role in maintaining
A)
equilibrium of the body
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B)
temperature of the body
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C)
constant composition of the blood irrespective of the nature of the food or fluid intake
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D)
blood pressure constant
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