Solved papers for Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2008

Chhattisgarh PMT Solved Paper-2008 Total Questions - 200

1) A ball is thrown from a point with a speed \[{{v}_{0}}\]at an angle of projection \[\text{ }\!\!\theta\!\!\text{ }\text{.}\]From the same point and at the same instant, a person starts running with a constant speed \[\frac{{{v}_{0}}}{2}\]to catch the ball. Will the person be able to catch the ball? If yes, what should be the angle of projection?

A)

\[\text{Yes,6}{{\text{0}}^{\text{o}}}\]

B)

\[\text{Yes,}\,\text{3}{{\text{0}}^{\text{o}}}\]

C)

\[\text{No}\]

D)

\[\text{Yes,}\,{{45}^{\text{o}}}\]

View Answer
2) Spherical balls of radius R are falling in a viscous                 fluid of viscosity \[\eta \] with a velocity \[v.\] The retarding viscous force acting on the spherical       ball is

A)

            directly proportional to R but inversely     proportional to \[v\]

B)

            directly proportional to both radius R and                velocity \[v\]

C)

            inversely proportional to R but directly     proportional to velocity \[v\]

D)

            inversely proportional to R but directly     proportional to velocity \[v\]

View Answer
3) Nickel shows ferromagnetic property at room    temperature. If the temperature is increased    beyond Curie temperature, then it will show

A)

            paramagnetism

B)

            anti-ferromagnetism

C)

            no magnetic property

D)

            diamagnetism

View Answer
4) In radioactive decay process, the negatively charged emitted \[\text{ }\!\!\beta\!\!\text{ -}\]particles are

A)

                        the electrons present inside the nucleus

B)

            the electrons produced as a result of the decay of neutrons inside the nucleus

C)

            the electrons produced as a result of         collisions between atoms

D)

            the electrons orbiting around the nucleus

View Answer
5) What is the value of inductance L for which the current is a maximum in a series LCR circuit with C = 10 µF and \[\omega \] = 1000 s-1 ?

A)

100 mH

B)

1 mH

C)

Cannot be calculated unless it is known

D)

10 mH

View Answer
6) Three point charges \[\text{+}\,\text{q,}\,\text{-}\,\text{2}\,\text{q}\] and \[\text{+}\,\text{q}\] are placed at points \[(x=\,o\text{,}\,y=a,z=o\,)\] \[(x=\,o\text{,}\,y=0,z=o\,)\] and \[(x=\,a\text{,}\,y=0,z=o\,),\] respectively. The magnitude and direction of the electric dipole moment vector of this charge assembly are

A)

\[\sqrt{2}\,qa\] along \[+y\] direction

B)

\[\sqrt{2}\,qa\] along the line joining points \[(x=0,y=0,z=0)\] and \[(x=a,y=a,z=0)\]

C)

\[qa\] along the line joining points \[(x=0,y=0,z=0)\] and \[(x=a,y=a,z=0)\]

D)

\[\sqrt{2}qa\] along \[+x\] direction

View Answer
7) The maximum number of possible interference maxima for slit-separation equal to twice the wavelength in Young's double-slit experiment, is

A)

infinite

B)

five

C)

three

D)

zero

View Answer
8) Two spherical conductors B and C having equal radii and carrying equal charges in them repel each other with a force F when kept apart at some distance. A third spherical conductor having same radius as that of B but uncharged, is brought in contact with B, then brought in contact with C and finally removed away from both. The new force of repulsion between B and C is

A)

\[\frac{F}{4}\]

B)

\[\frac{3F}{4}\]

C)

\[\frac{F}{8}\]

D)

\[\frac{3F}{8}\]

View Answer
9) In gamma ray emission from a nucleus

A)

both the neutron number and the proton number change

B)

there is no change in the proton number and the neutron number

C)

only the neutron number changes

D)

only the proton number changes

View Answer
10) A particle starting from the origin (0, 0) moves in a straight line in the \[(x,y)\] plane. Its coordinates at a later time are \[(\sqrt{3},3).\] The path of the particle makes with the x-axis an angle of

A)

\[30{}^\circ \]

B)

\[45{}^\circ \]

C)

\[60{}^\circ \]

D)

\[0{}^\circ \]

View Answer
11) A wheel has angular acceleration of \[3.0\text{ }rad/{{s}^{2}}\] and an initial angular speed of 2.00 rad/s. In a time of 2 s it has rotated through an angle (in radian) of

A)

6

B)

10

C)

12

D)

4

View Answer
12) The resistance of an ammeter is 130 and its scale is graduated for a current upto 100 A. After an additional shunt has been connected to this ammeter it becomes possible to measure currents upto 750 A by this meter. The value of shunt resistance is

A)

20\[\Omega \]

B)

2\[\Omega \]

C)

0.2\[\Omega \]

D)

2\[\Omega \]

View Answer
13) Under the influence of a uniform magnetic field a charged particle is moving in a circle of radius R with constant speed v. The time period of the motion

A)

depends on \[v\] and not on \[R\]

B)

depends on both \[R\] and \[v\]

C)

is independent of both \[R\] and \[v\]

D)

depends on \[R\] and not on \[v\]

View Answer
14) The primary and secondary coils of a transformer have 50 and 1500 rums respectively. If the magnetic flux ^ linked with the primary coil is given by\[\phi ={{\phi }_{0}}+4t,\] where \[\phi \] is in we ber, t is time in second and \[{{\phi }_{0}}\] is a constant, the output voltage across die secondary coil is

A)

90 V

B)

120 V

C)

220 V

D)

30 V

View Answer
15) Two condensers, one of capacity C and the other of capacity \[\frac{C}{2'}\] are connected to a V volt battery, as shown. The work done in charging fully both a condensers is

A)

\[2C{{V}^{2}}\]

B)

\[\frac{1}{4}C{{V}^{2}}\]

C)

\[\frac{3}{4}C{{V}^{2}}\]

D)

\[\frac{1}{2}C{{V}^{2}}\]

View Answer
16) A uniform rod AB of length; and mass m is free to rotate about point A. The rod is released from rest in the horizontal position. Given that moment of inertia of the rod about A is \[\frac{m{{l}^{2}}}{3},\]the initial angular acceleration of the rod will be

A)

\[\frac{2g}{3l}\]

B)

\[mg\frac{l}{2}\]

C)

\[\frac{3}{2}gl\]

D)

\[\frac{3g}{2l}\]

View Answer
17) The frequency of a light wave in a material is \[2\times {{10}^{14}}\]Hz and wavelength is \[5000\,\,\overset{\text{o}}{\mathop{\text{A}}}\,\]. The refractive index of material will be

A)

1:40

B)

1.50

C)

3.00

D)

1.33

View Answer
18) A car moves from X to Y with a uniform speed V y and returns to Y with a uniform speed \[{{v}_{d.}}\] The average speed for this round trip is T. The minimum time taken by the particle to travel half of the amplitude from the equilibrium position is

A)

\[\frac{2v{{ }_{d}}{{v}_{u}}}{{{v}_{d}}+{{v}_{u}}}\]

B)

\[\sqrt{v{{ }_{u}}{{v}_{d}}}\]

C)

\[\frac{v{{ }_{d}}{{v}_{u}}}{{{v}_{d}}+{{v}_{u}}}\]

D)

\[\frac{v{{ }_{u}}+{{v}_{d}}}{2}\]

View Answer
19) A particle executes simple harmonic scillation with an amplitude \[a\]. The period of oscillation is T. The minimum time taken by the particle to travel half of the amplitude from the equilibrium position is

A)

T/4

B)

T/8

C)

T/12

D)

T/2

View Answer
20) A block B is pushed momentarily along a horizontal surface with an initial velocity v. If µ is the coefficient of sliding friction between B and the surface, block B will come to rest after a time

A)

\[\frac{v}{g\mu }\]

B)

\[\frac{g\mu }{v}\]

C)

\[\frac{g}{v}\]

D)

\[\frac{v}{g}\]

View Answer
21) Two radioactive substances A and B have decay constants \[5\lambda \] and \[\lambda \] respectively. At t = 0 they have the same number of nuclei. The ratio of   number of nuclei of A to those of B will be \[\left( \frac{1}{e} \right)\] after a time interval

A)

\[\frac{1}{4\lambda }\]

B)

\[4\lambda \]

C)

\[2\lambda \]

D)

\[\frac{1}{2\lambda }\]

View Answer
22) A transformer is used to light a 100 W and 110 V lamp from a 220 V mains. If the main current is 0.5 A, the efficiency of the "transformer is approximately

A)

30%

B)

50%

C)

90%

D)

10%

View Answer
23) A charged particle (charge q) is moving in a circle of radius R with uniform speed v. The associated magnetic moment u is given by

A)

\[\frac{qvR}{2}\]

B)

\[qv{{R}^{2}}\]

C)

\[\frac{qv{{R}^{2}}}{2}\]

D)

\[qvR\]

View Answer
24) A steady current of 1.5 A flows through a copper voltameter for 10 min. If the electrochemical equivalent of copper is \[30\times {{10}^{-5}}g\,{{C}^{-1}},\]the mass of copper deposited on the electrode will be

A)

\[0.40\,g\]

B)

\[0.50\,g\]

C)

\[0.67\,g\]

D)

\[0.27\,g\]

View Answer
25) In a mass spectrometer used for measuring the masses of ions, the ions are initially accelerated by an electric potential V and then made to describe semicircular paths of radius R using a magnetic field B. If V and B are kept constant, the ratio \[\left( \frac{\text{charge}\,\text{on}\,\text{the}\,\text{ion}}{\text{mass}\,\text{of}\,\text{the}\,\text{ion}} \right)\]will be proportional to

A)

\[\frac{1}{R}\]

B)

\[\frac{1}{{{R}^{2}}}\]

C)

\[{{R}^{2}}\]

D)

\[R\]

View Answer
26) Three resistances P, Q, R each of \[2\,\Omega \] and an unknown resistance S form the four arms of a Wheat stone's bridge circuit. When a resistance of \[6\,\Omega \] is connected in parallel to S the bridge gets balanced. What is the value of S?

A)

\[2\,\Omega \]

B)

\[3\,\Omega \]

C)

\[6\,\Omega \]

D)

\[1\,\Omega \]

View Answer
27) Two satellites of earth, \[{{S}_{2.}}\] and \[{{S}_{1,}}\] are moving in the same orbit. The mass of Si is four times the mass of \[{{S}_{2}}\] Which one of the following statements is true ?

A)

The time period of \[{{S}_{1,}}\] is four times that of\[{{S}_{2}}\]

B)

The potential energies of earth and satellite in the two cases are equal

C)

\[{{S}_{1}}\]and \[{{S}_{2}}\] are moving with the same speed

D)

The kinetic energies of the two satellites are equal

View Answer
28) An observer moves towards a stationary source of sound, with a velocity one-fifth of the velocity of sound. What is the percentage increase in the apparent frequency ?

A)

Zero

B)

6.5%

C)

5%

D)

20%

View Answer
29) A coil of inductance 300 m H and resistance \[2\,\Omega \] is connected to a source of voltage 2 V. The current reaches half of its steady state value in

A)

0.05 s

B)

0.1 s

C)

0.15s

D)

0.3s

View Answer
30) The refractive index of glass is 1.520 for red light and 1.525 for blue light. Let \[{{D}_{1}}\] and \[{{D}_{2}}\] be angles of minimum deviation for red and blue light respectively in a prism of this glass, then,

A)

\[{{D}_{1}}<{{D}_{2}}\]

B)

\[{{D}_{1}}={{D}_{2}}\]

C)

\[{{D}_{1}}\] can be less than or greater than \[{{D}_{2}}\] depending upon the angle of prism

D)

\[{{D}_{1}}>{{D}_{2}}\]

View Answer
31) A particle of mass 100 g is thrown vertically upwards with a speed of 5 m/s. The work done by the force of gravity during the time the particle goes up is

A)

-0.5 J

B)

-1.25J

C)

1.25 J

D)

0.5 J

View Answer
32) A mass of M kg is suspended by a weightless string. The horizontal force that is required to displace it until the string makes an angle of \[45{}^\circ \] with the initial vertical direction is

A)

\[Mg(\sqrt{2}+1)\]

B)

\[Mg\sqrt{2}\]

C)

\[\frac{Mg}{\sqrt{2}}\]

D)

\[Mg(\sqrt{2}-1)\]

View Answer
33) A force of \[\text{-F}\] \[\mathbf{\hat{k}}\] acts on 0, the origin of the coordinate system. The torque about the point \[(1,-1)\] is

A)

\[F\,(\mathbf{\hat{i}-\hat{j}})\]

B)

\[-F\,(\mathbf{\hat{i}}+\mathbf{\hat{j}})\]

C)

\[F\,(\mathbf{\hat{i}}+\mathbf{\hat{j}})\]

D)

\[-F\,(\mathbf{\hat{i}}-\mathbf{\hat{j}})\]

View Answer
34) If \[{{M}_{0}}\] is the mass of an oxygen isotope \[_{8}{{O}^{17}},\]\[{{M}_{P}}\] and \[{{M}_{n}}\] are the masses of a proton and a neutron, respectively, the nuclear binding energy of the isotope is

A)

\[({{M}_{0}}-8{{M}_{P}}){{c}^{2}}\]

B)

\[({{M}_{0}}-8{{M}_{P}}-9{{M}_{n}}){{c}^{2}}\]

C)

\[{{M}_{0}}{{c}^{2}}\]

D)

\[({{M}_{0}}-17{{M}_{n}}){{c}^{2}}\]

View Answer
35) A sound absorber attenuates the sound level by 20 dB. The intensity decreases by a factor of

A)

1000

B)

10000

C)

10

D)

100

View Answer
36) Which of the following parameters does not characterise the thermodynamic state of matter?

A)

Temperature

B)

Pressure

C)

Work

D)

Volume

View Answer
37) A charged oil drop is suspended in uniform field of \[3\times {{10}^{4}}V/m\] so that it neither falls nor rises. The charge on the drop will be (Take the mass of the charge \[=9.9\times {{10}^{-15}}kg\] and \[g=10m/{{s}^{2}}\])

A)

\[3.3\times {{10}^{-18}}C\]

B)

\[3.2\times {{10}^{-18}}C\]

C)

\[1.6\times {{10}^{-18}}C\]

D)

\[4.8\times {{10}^{-18}}C\]

View Answer
38) A vertical spring with force constant k is fixed on a table A ball of mass m at a height h above the free upper end of the spring falls vertically on the spring, so that the spring is compressed by a distance d. The net work done in the process is

A)

\[mg(h+d)+\frac{1}{2}k{{d}^{2}}\]

B)

\[mg(h+d)-\frac{1}{2}k{{d}^{2}}\]

C)

\[mg(h-d)-\frac{1}{2}k{{d}^{2}}\]

D)

\[mg(h-d)+\frac{1}{2}k{{d}^{2}}\]

View Answer
39) Dimensions of resistance in an electrical circuit in terms of dimension of mass M, of length L, of time T and of current \[I,\] would be

A)

\[\text{ }\!\![\!\!\text{ M}{{\text{L}}^{\text{2}}}{{\text{T}}^{-3}}{{\text{I}}^{\text{-1}}}\text{ }\!\!]\!\!\text{ }\]

B)

\[\text{ }\!\![\!\!\text{ M}{{\text{L}}^{\text{2}}}{{\text{T}}^{-2}}\text{ }\!\!]\!\!\text{ }\]

C)

\[\text{ }\!\![\!\!\text{ M}{{\text{L}}^{\text{2}}}{{\text{T}}^{-1}}{{\text{I}}^{-1}}\text{ }\!\!]\!\!\text{ }\]

D)

\[\text{ }\!\![\!\!\text{ M}{{\text{L}}^{\text{2}}}{{\text{T}}^{-3}}{{\text{I}}^{-2}}\text{ }\!\!]\!\!\text{ }\]

View Answer
40)   An alpha nucleus of energy \[\frac{1}{2}m{{v}^{2}}\] bombards a heavy nuclear target of charge Ze. Then the distance of closest approach for the alpha nucleus will be proportional to

A)

v2

B)

1 /m

C)

1/v4

D)

1/Ze

View Answer
41) The work of 146 kJ is performed in order to compress one kilo mole of a gas adiabatically and in this process the temperature of the gas increases by \[7{}^\circ C\]. The gas is\[\text{(R=8}\text{.3J}\,\text{mo}{{\text{l}}^{\text{-1}}}{{\text{K}}^{\text{01}}}\text{)}\]

A)

diatomic

B)

triatomic

C)

a mixture of monoatomic and diatomic

D)

monoatomic

View Answer
42) If \[{{g}_{E}}\] and \[{{g}_{M}}\] are the accelerations due to gravity on the surfaces of the earth and the moon respectively and if Millikan's oil drop experiment could be performed on the two surfaces,   one   will   find   the   ratio \[\frac{\text{electronic}\,\text{charge}\,\text{on}\,\text{the}\,\text{moon}}{\text{electronic}\,\text{charge}\,\text{on}\,\text{the}\,\text{earth}}\]to be

A)

\[1\]

B)

\[\operatorname{zero}\]

C)

\[\frac{{{g}_{E}}}{{{g}_{M}}}\]

D)

\[\frac{{{g}_{M}}}{{{g}_{E}}}\]

View Answer
43) Diwali rocket is ejecting 50 g of gases/s at a velocity of 400 m/s. The accelerating force or the rocket will be

A)

22 dyne

B)

20 N

C)

20 dyne

D)

100 N

View Answer
44) A frame made of metallic wire enclosing a surface area A is covered with a soap film. If the area of the frame of metallic wire is reduced by 50%,the energy of the soap film will be changed by

A)

100%

B)

75%

C)

50%

D)

25%

View Answer
45) Mercury boils at \[367{}^\circ C\]. However, mercury thermometers are made such that they can measure temperature up to \[500{}^\circ C\]. This is done by

A)

maintaining vacuum above mercury column in the stem of the thermometer

B)

filling nitrogen gas at high pressure above the mercury column

C)

filling oxygen gas at high pressure above the mercury column

D)

filling nitrogen gas at low pressure above the mercury column

View Answer
46) In a laboratory four convex lenses \[{{L}_{1}},{{L}_{2}},{{L}_{3}}\] and \[{{L}_{4}}\] of focal lengths 2, 4, 6 and 8 cm, respectively are available. Two of these lenses form a telescope of length 10 cm and magnifying power 4. The objective and eye lenses are respectively

A)

\[{{L}_{2}},{{L}_{3}}\]

B)

\[{{L}_{1}},{{L}_{4}}\]

C)

\[{{L}_{1}},{{L}_{2}}\]

D)

\[{{L}_{4}},{{L}_{1}}\]

View Answer
47)  A symmetric double convex lens is cut in two equal parts by a plane perpendicular to the principal axis. If the power of the original lens is 4D, the power of a cut lens will be

A)

2D

B)

3D

C)

4D

D)

5D

View Answer
48) Two non-ideal batteries are connected in parallel. Consider the following statements. The equivalent emf is smaller than either of the two emf s. (ii) The equivalent internal resistance is smaller than either of the two internal resistances.

A)

Both (i) and (ii) are correct

B)

(i) is correct but (ii) is wrong

C)

(iii) is correct but (i) is wrong

D)

Both (i) and (ii) are wrong

View Answer
49) For a metallic wire, the ratio\[\frac{V}{i}\](V= applied potential difference and i = current flowing) is

A)

independent of temperature

B)

increases as the temperature rises

C)

decreases as the temperature rises

D)

increases or decreases as temperature rises depending upon the metal

View Answer
50) The potential energy of a molecule on the surface of a liquid compared to one inside the liquid is

A)

zero

B)

lesser

C)

equal

D)

greater

View Answer
51) Which of the following is not correct?

A)

Hydrolysis of \[NC{{l}_{3}}\] gives \[N{{H}_{3}}\]and \[HOCl\]

B)

\[N{{H}_{3}}\]is less stable than \[P{{H}_{3}}\]

C)

\[N{{H}_{3}}\] is a weak reducing reagent compared to \[P{{H}_{3}}\]

D)

Nitric oxide in solid state exhibits diamagnetic property

View Answer
52) \[Si{{O}_{2}}\] is reacted with sodium carbonate. What is the gas liberated?

A)

\[CO\]

B)

\[{{O}_{2}}\]

C)

\[C{{O}_{2}}\]

D)

\[{{O}_{3}}\]

View Answer
53) The compounds formed at anode in the electrolysis of an aqueous solution of potassium acetate, are

A)

\[{{C}_{2}}{{H}_{6}}\]and \[C{{O}_{2}}\]

B)

\[{{C}_{2}}{{H}_{4}}\] and \[C{{O}_{2}}\]

C)

\[C{{H}_{4}}\]and \[{{H}_{2}}\]

D)

\[C{{H}_{4}}\]and \[C{{O}_{2}}\]

View Answer
54) Which of the following is not correct regarding the elecolytic preparation of \[{{H}_{2}}{{O}_{2}}\]?

A)

Lead is used as cathode

B)

50% \[{{H}_{2}}S{{O}_{4}}\]is used

C)

Hydrogen is liberated at anode

D)

Sulphuric acid undergoes oxidation

View Answer
55) Which of the following is correct?

A)

The pH of one litre solution containing \[0.49g\]of \[{{H}_{2}}S{{O}_{4}}\]is \[2.0\]

B)

The conjugate base of \[{{H}_{2}}S\] is \[{{S}^{2-}}\]

C)

\[B{{F}_{3}}\]is a Lewis base

D)

Phenolphthalein is colourless in basic medium

View Answer
56) Which of the following is correct?

A)

Catalyst undergoes permanent chemical change

B)

Particle size of solute in true solution is \[{{10}^{-3}}m\]

C)

Starch solution is a hydrosol

D)

Hydrolysis of liquid ester in the presence of mineral add is an example of heterogeneous catalysis reactions

View Answer
57) In an oxidation-reduction reaction, \[MnO_{4}^{-}\] ion is converted to \[M{{n}^{2+}}\]What is the number of equivalents of \[KMn{{O}_{4}}\] \[(mol.\text{ }wt.=158)\]present in \[250\text{ }mL\]of \[0.04\text{ }M\]\[KMn{{O}_{4}}\] solution?

A)

\[0.02\]

B)

\[0.05\]

C)

\[0.04\]

D)

\[0.07\]

View Answer
58) Which of the following reagents converts both acetaldehyde and acetone to alkanes?

A)

\[Ni/{{H}_{2}}\]

B)

\[LiAl{{H}_{4}}\]

C)

\[{{I}_{2}}/NaOH\]

D)

\[Zn\,\,Hg/conc.\,HCl\]

View Answer
59) The heat of formation of \[(Co)g\] and \[C{{O}_{2}}(g)\] are \[\Delta H=-110\] and \[\Delta H=-393kJ\,\,mo{{l}^{-1}}\]respectively. What is the heat of reaction \[(\Delta H)'\] (in\[kJ\text{ }mo{{1}^{-1}}\]) for the following reaction? \[CO(g)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow{{}}C{{O}_{2}}(g)\]

A)

\[-504\]

B)

\[-142.5\]

C)

\[-283\]

D)

\[504\]

View Answer
60) What is the wavelength (in m) of a particle of mass \[6.62\times {{10}^{-29}}g\]moving with a velocity of \[{{10}^{3}}\text{ }m{{s}^{-1}}\] ?

A)

\[6.62\times {{10}^{-4}}\]

B)

\[6.62\times {{10}^{-3}}\]

C)

\[{{10}^{-5}}\]

D)

\[{{10}^{5}}\]

View Answer
61) What is the electrode potential (in V) of the following electrode at\[{{25}^{o}}C\]? \[N{{i}^{2+}}(0.1M)|Ni(s)\] (Standard reaction potential of \[N{{i}^{2+}}|Ni\] is\[-0.25V,\] \[\frac{2,303RT}{F}=0.06\])

A)

\[-0.28V\]

B)

\[-0.34V\]

C)

\[-0.82V\]

D)

\[-0.22V\]

View Answer
62) What is the equation for the equilibrium constant \[({{K}_{c}})\] for the following reaction? \[\frac{1}{2}A(g)+\frac{1}{3}B(g)\frac{2}{3}C(g)\]

A)

                \[{{K}_{c}}=\frac{{{[A]}^{1/2}}{{[B]}^{1/3}}}{{{[C]}^{3/2}}}\]

B)

                \[{{K}_{c}}=\frac{{{[C]}^{3/2}}}{{{[A]}^{2}}{{[B]}^{3}}}\]

C)

                \[{{K}_{c}}=\frac{{{[C]}^{2/3}}}{{{[A]}^{1/2}}{{[B]}^{1/3}}}\]

D)

                \[{{K}_{c}}=\frac{{{[C]}^{2/3}}}{{{[A]}^{1/2}}+{{[B]}^{1/3}}}\]

View Answer
63) Which of the following can give a Grignard reagent when reacted with magnesium in dry ether?

A)

\[{{C}_{2}}{{H}_{6}}\]

B)

\[{{C}_{2}}{{H}_{5}}Cl\]

C)

\[{{C}_{2}}{{H}_{5}}OH\]

D)

\[{{C}_{2}}{{H}_{5}}CN\]

View Answer
64) Which of the following is not correct?

A)

\[Al\] reacts with \[NaOH\]and liberate \[{{H}_{2}}\]

B)

\[AlC{{l}_{3}}\] is a Lewis acid

C)

\[Al\] is used in the manufacture of electrical cables

D)

\[NaOH\]is used during Hall's process of purification of bauxite

View Answer
65) A \[0.5\text{ }g/L\]solution of glucose is found to be isotonic with a \[2.5\text{ }g/L\]solution of an organ:: compound. What will be the molecular weight of that organic compound?

A)

\[300\]

B)

\[600\]

C)

\[900\]

D)

\[200\]

View Answer
66) t-butyl chloride preferably undergo hydrolysis by

A)

\[{{S}_{N}}1\] mechanism

B)

\[{{S}_{N}}2\] mechanism

C)

Any of [a] and [b]

D)

None of the above

View Answer
67) Adipic acid on heating form

A)

B)



C)



D)



View Answer
68) To dissolve argentite ore which of the following is used?

A)

\[Na[Ag{{(CN)}_{2}}]\]

B)

\[NaCN\]

C)

\[NaCl\]

D)

\[HCl\]

View Answer
69) If 50% of a radioactive substance dissociates in \[\text{15 }min,\]then the time taken by substance to dissociate 99% will be

A)

\[50\text{ }min\]

B)

\[100\text{ }min\]

C)

\[99\text{ }min\]

D)

\[150\text{ }min\]

View Answer
70) \[H-O-H\] bond angle in \[{{H}_{2}}O\] is \[{{104.5}^{o}}\] and not \[{{109}^{o}}28'\]because of

A)

lone pair-lone pair repulsion

B)

lone pair-bond pair repulsion

C)

bond pair-bond pair repulsion

D)

high electronegativity of oxygen

View Answer
71) The reaction,\[{{C}_{6}}{{H}_{5}}CHO+C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}\xrightarrow{{}}\] \[{{C}_{6}}{{H}_{5}}CH=CHCOO{{C}_{2}}{{H}_{5}},\] is called

A)

Benzoin condensation

B)

Claisen condensation

C)

Cannizaro's reaction

D)

Perkin reaction

View Answer
72) The best method to separate the mixture of ortho and para nitrophenol \[(1:1)\] is

A)

vaporisation

B)

colour spectrum

C)

distillation

D)

crystallization

View Answer
73) lodoform gives a precipitate with \[AgN{{O}_{3}}\]on heating but chloroform does not because

A)

\[C-I\] bond in iodoform is weak and \[C-Cl\] bond in chloroform is strong

B)

chloroform is covalent

C)

iodoform is ionic

D)

None of the above

View Answer
74) What are the values of \[{{n}_{1}}\] and \[{{n}_{2}}\] respectively for \[{{H}_{\beta }}\] line in the Lyman series of hydrogen atomic spectrum 44?

A)

3 and 5

B)

2 and 3

C)

1 and 3

D)

2 and 4

View Answer
75) The homologue of ethyne is

A)

\[{{C}_{2}}{{H}_{2}}\]

B)

\[{{C}_{2}}{{H}_{6}}\]

C)

\[{{C}_{3}}{{H}_{8}}\]

D)

\[{{C}_{3}}{{H}_{4}}\]

View Answer
76) A \[0.1\] aqueous solution of a weak acid is 2% ionised. If the ionic product of water is \[1\times {{10}^{-4}},\]the \[[O{{H}^{-}}]\] is

A)

\[5\times {{10}^{-12}}M\]

B)

\[2\times {{10}^{-3}}M\]

C)

\[1\times {{10}^{-14}}M\]

D)

None of these

View Answer
77) Which of the following does not have coordinate bond?'

A)

\[S{{O}_{2}}\]

B)

\[HN{{O}_{3}}\]

C)

\[{{H}_{2}}S{{O}_{3}}\]

D)

\[HN{{O}_{2}}\]

View Answer
78) The total number of orbitals in the fifth energy level is

A)

\[5\]

B)

\[10\]

C)

\[18\]

D)

\[25\]

View Answer
79) The most probable velocity (in cm/s) of hydrogen molecule at \[{{27}^{o}}C\]will be

A)

\[19.3\times {{10}^{4}}\]

B)

\[17.8\times {{10}^{4}}\]

C)

\[24.93\times {{10}^{9}}\]

D)

\[17.8\times {{10}^{8}}\]

View Answer
80) Element with atomic number 38, belongs to

A)

II A group and 5th period

B)

II A group and 2nd period

C)

V A group and 2nd period

D)

III A group and 5th period

View Answer
81) In an oxidation reduction reaction, dichromate \[(C{{r}_{2}}O_{7}^{2-})\] ion is reduced to \[C{{r}^{3+}}\] ion. The equivalent weight of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] in this reaction is

A)

\[\frac{molecular\,weight}{3}\]

B)

\[\frac{molecular\,weight}{6}\]

C)

\[\frac{molecular\,weight}{1}\]

D)

\[\frac{molecular\,weight}{2}\]

View Answer
82) What is the wave number of 4th line in Bahner series of hydrogen spectrum? \[(R=1,09,677c{{m}^{-1}})\]

A)

\[24,630\,c{{m}^{-1}}\]

B)

\[24,360\text{ }c{{m}^{-1}}\]

C)

\[24,730\text{ }c{{m}^{-1}}~\]

D)

\[24,372\text{ }c{{m}^{-1}}\]

View Answer
83) \[9.2\text{ }g\]\[{{N}_{3}}{{O}_{4}}\] is heated in a \[1I,\] vessel till equilibrium state is established \[{{N}_{2}}{{O}_{4}}(g)2N{{O}_{2}}(g)\] In equilibrium state 50% \[{{N}_{2}}{{O}_{4}}\] was dissociated, equilibrium constant will be (mol. wt. of \[{{N}_{2}}{{O}_{4}}=92\])

A)

\[0.1\]

B)

\[0.4\]

C)

\[0.3\]

D)

\[0.2\]

View Answer
84) Disperse phase and dispersion medium in butter are respectively

A)

solid and liquid

B)

liquid and solid

C)

liquid and liquid

D)

solid and solid

View Answer
85) Which of the following carbonates decomposes readily at low temperatures ?

A)

\[N{{a}_{2}}C{{O}_{3}}\]

B)

\[{{K}_{2}}C{{O}_{3}}\]

C)

\[L{{i}_{2}}C{{O}_{3}}\]

D)

\[R{{b}_{2}}C{{O}_{3}}\]

View Answer
86) The atomic number of an element 'M' is 26. How many electrons are present in the M-shell of the element in its \[{{M}^{3+}}\] state?

A)

\[11\]

B)

\[15\]

C)

\[14\]

D)

\[13\]

View Answer
87) In which of the following pairs, both molecules possess dipole moment?

A)

\[C{{O}_{2}},S{{O}_{2}}\]

B)

\[BC{{l}_{3}},PC{{l}_{3}}\]

C)

\[{{H}_{2}}O,S{{O}_{2}}\]

D)

\[C{{O}_{2}},C{{S}_{2}}\]

View Answer

88) Match the following

	Set - I		Set - II
(A)	10 vol \[{{H}_{2}}{{O}_{2}}\]	1.	perhydrol
(B)	20 vol \[{{H}_{2}}{{O}_{2}}\]	2.	\[5.358N\]
(C)	30 vol \[{{H}_{2}}{{O}_{2}}\]	3.	\[1.78SM\]
(D)	40 vol \[{{H}_{2}}{{O}_{2}}\]	4.	\[3.03%\]

The correct match is

\[A-4,B-3,C-2,D-1\]

\[A-1,B-2,C-3,D-4\]

\[A-1,B-3,C-2,D-4\]

\[A-4,B-2,C-3,D-1\]

View Answer

89) During, acetylation of amines, what is replaced by acetyl group?

A)

Hydrogen atom attached to nitrogen atom

B)

One or more hydrogen atoms attached to carbon atom

C)

One 0'- more hydrogen atoms attached to nitrogen atom

D)

Hydrogen atoms attached to either carbon atom or nitrogen atom

View Answer
90) Which is used in alcoholic beverages?

A)

Methanol

B)

Ethanol

C)

Phenol

D)

Glycerol

View Answer
91) Oxidation state of oxygen in \[{{F}_{2}}O\] is

A)

\[+1\]

B)

\[-1\]

C)

\[+2\]

D)

\[-2\]

View Answer
92) In III group precipitation, \[N{{H}_{4}}Cl\] is added. before adding \[N{{H}_{4}}OH\] to

A)

decrease cone. of \[O{{H}^{-}}\]

B)

prevent interference of \[PO_{4}^{3-}\]

C)

increase cone. of \[C{{l}^{-}}\]

D)

increase cone. of \[O{{H}^{-}}\] ion

View Answer
93) Steel is heated to below red heat and then, cooled slowly. The process refers to

A)

hardening

B)

annealing

C)

tempering

D)

nitriding

View Answer
94) Which one of the following reactions is called Rosemond reaction?

A)

Aldehydes are reduced to alcohols

B)

Acids are converted to acid chlorides

C)

Alcohols are reduced to hydrocarbons

D)

Acid chlorides are reduced to aldehydes

View Answer
95) IUPAC name of\[C{{H}_{3}}-C{{H}_{2}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\underset{C{{H}_{2}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,}}\,}}\,H-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,=C{{H}_{2}}\] is

A)

\[2-methyl-3-ethyl-1-pentene\]

B)

\[3-ethyl-4-methyl-4-pentene\]

C)

\[3-ethyl-2-methyl-1-pentene\]

D)

\[3-methyl-2-ethyl-1-pentene\]

View Answer
96) Which of the following dissolves in water but does not give any oxyacid solution?

A)

\[S{{O}_{2}}\]

B)

\[O{{F}_{2}}\]

C)

\[SC{{l}_{4}}\]

D)

\[S{{O}_{3}}\]

View Answer
97) The formula of Calgon, used for water softening is

A)

\[N{{a}_{2}}[N{{a}_{4}}{{(P{{O}_{3}})}_{6}}]\]

B)

\[N{{a}_{4}}[N{{a}_{2}}{{(P{{O}_{3}})}_{6}}]\]

C)

\[N{{a}_{4}}[N{{a}_{2}}{{(P{{O}_{3}})}_{6}}]\]

D)

\[N{{a}_{4}}[N{{a}_{4}}{{(P{{O}_{4}})}_{6}}]\]

View Answer
98) A mixture of amylose and amylopectin is called

A)

lactose

B)

starch

C)

cellulose

D)

sucrose

View Answer
99) Methyl alcohol when reacted with carbon monoxide using cobalt or rhodium as catalyst, compound 'A' is formed. On heating 'A' with \[HI\] in the presence of red phosphorus as catalyst 'B' is formed. Identify 'B'.

A)

\[C{{H}_{3}}COOH\]

B)

\[C{{H}_{3}}-CHO\]

C)

\[C{{H}_{3}}.C{{H}_{2}}.I\]

D)

\[C{{H}_{3}}-C{{H}_{3}}\]

View Answer
100) One gas bleaches the colour of flowers by reduction and another gas by oxidation. The gases respectively are

A)

\[S{{O}_{2}}\]and \[C{{l}_{2}}\]

B)

\[CO\]and \[C{{l}_{2}}\]

C)

\[N{{H}_{3}}\]and \[S{{O}_{2}}\]

D)

\[{{H}_{2}}S\]and \[B{{r}_{2}}\]

View Answer
101) The trisomy for 21st chromosome is called

A)

Down's syndrome

B)

Turner's syndrome

C)

Sickle cell anaemia

D)

Klinefelter's syndrome

View Answer
102) 'Mammalian thymus' is mainly concerned with

A)

regulation of body temperature

B)

regulation of body growth

C)

immunological functions

D)

secretion of thyrotropin

View Answer
103) Which of the following is the largest gland in an adult roan ?

A)

Thymus

B)

Liver

C)

Thyroid

D)

Pancreas

View Answer
104) In Pheretima, septa are absent between which segments ?

A)

3/4 and 9/10

B)

4/5 and 8/9

C)

5/6 and 7/8

D)

7/8 and 6/7

View Answer
105) During emergency which of the following hormone is secreted?

A)

Aldosterone

B)

Thyroxine

C)

Adrenalin

D)

Calcitonin

View Answer
106) In which of the following animals, respiration occurs without any respiratory organ ?

A)

Prog

B)

Fish

C)

Cockroach

D)

Earthworm

View Answer
107) In cockroach, larval and nymphal characters are maintained by

A)

ecdysone

B)

salivary glands

C)

parotid gland

D)

juvenile hormone

View Answer
108) Which of the following is a transparent tissue?

A)

Tendon

B)

Fibrous cartilage

C)

Hyaline cartilage

D)

All of these

View Answer
109) Rh factor is present in

A)

all vertebrates

B)

all mammals

C)

all reptiles

D)

man and rhesus monkey only

View Answer
110) In rabbit, end of a long bone is connected in another by

A)

tendon

B)

ligaments

C)

muscle

D)

cartilage

View Answer
111) Which of the following cell type is capable of giving rise to other cell types in sponges ?

A)

Thesocytes

B)

Pinacocytes

C)

Cnidocytes

D)

Archaeocytes

View Answer
112) Thigmotaxis is not shown by

A)

Paramecium

B)

Amoeba

C)

Ascaris

D)

Hydra

View Answer
113) Which is correctly matched?

A)

Apiculture-Honey bee

B)

Pisciculture-Silk moth

C)

Sericulture-Fish

D)

Aquaculture-Mosquito

View Answer
114) Changes that allow the conversion of larva into adult, is called

A)

metagenesis

B)

alternation

C)

metamorphosis

D)

metastasis

View Answer
115) Animals having a built in thermostat to maintain constant body temperature are known as

A)

bio thermic

B)

poikilothermic

C)

oligothermic

D)

home othermic

View Answer
116) The intermediate host of Schistosoma is

A)

snail

B)

mosquito

C)

housefly

D)

sheep

View Answer
117) The islets of Langerhans are found in

A)

pancreas

B)

stomach

C)

liver

D)

alimentary canal

View Answer
118) The vitamin which is essential for blood dotting is

A)

vitamin-A

B)

vitamin-B

C)

vitamin-C

D)

vitamin-K

View Answer
119) The female genital pore of Pheretima posthuma located upon the segment

A)

14th

B)

16th

C)

18th

D)

15th

View Answer
120) Polyp phase is absent in

A)

Hydra

B)

Aureh'a

C)

Physalia

D)

Obelia

View Answer
121) In frog heart, there are cardiac muscles which consists of fibres called

A)

Purkinje fibres

B)

myonemes

C)

telodendria

D)

columnae camae

View Answer
122) Malpighian tubules are

A)

excretory organs of insects

B)

excretory organs of frog

C)

respiratory organs of insects

D)

endocrine glands of insects

View Answer
123) LH and FSH are collectively called

A)

oxytocin

B)

somatotropins

C)

luteotropic

D)

gonadotropins

View Answer
124) Who is known as 'father of Endocrinology' ?

A)

RH Whittaker

B)

Pasteur

C)

Einthoven

D)

Thomas Addison

View Answer
125) Which of the following provides most evident proof of evolution?

A)

Fossils

B)

Morphology

C)

Embiyo

D)

Vestigial organs

View Answer
126) In Mollusca, eye is present over a stalk, called

A)

ostracum

B)

operculum

C)

ommatophores

D)

osphradium

View Answer
127) Among the following, colonial Insects are

A)

locusts

B)

mosquitoes

C)

white ants

D)

bed bug

View Answer
128) In Ascaris, the coelom is

A)

schizocoelom

B)

pseudocoelom

C)

true coelom

D)

haemocoelom

View Answer
129) Turbellarians are free living

A)

nematodes

B)

cestodes

C)

flat worms

D)

trematodes

View Answer
130) The   characteristic larva of phylum Coelenterata' is

A)

planula

B)

cysticercus

C)

rhabdiform

D)

wriggler

View Answer
131) In rabbit, head of epididymis present at the head of the testis is called

A)

vas deferens

B)

cauda epididymis

C)

gubernaculum

D)

caput epididymis

View Answer
132) Tendons and ligaments are specialized types of

A)

nervous tissue

B)

muscular tissue

C)

epithelial tissue

D)

connective tissue

View Answer
133) In blood, in transported majorly as

A)

sodium carbonate

B)

carboxyhaemoglobin

C)

bicarbonate

D)

as such

View Answer
134) Animals undergoes inactive stage during winter, is known as

A)

aestivation

B)

hibernation

C)

adaptation

D)

acclimatization

View Answer
135) Kupffer cells are present in

A)

liver

B)

small intestine

C)

pancreas

D)

thyroid gland

View Answer
136) The embryo at 16 celled stage is known as

A)

morula

B)

gastrula

C)

blastula

D)

blast o mere

View Answer
137) Contractile vacuole in protozoan Amoeba is meant for

A)

respiration

B)

excretion

C)

locomotion

D)

osmoregulation

View Answer
138) Which of the following is important for muscle contraction and nerve impulse transmission?

A)

  ions

B)

  ions

C)

The Both [a] and [b]

D)

  ions

View Answer
139) Which of these statements about Huntington's disease is true?

A)

Genetic tests to detect the presence of the allele responsible for Huntington's disease do not exist at this time

B)

The onset of Huntington's disease is typically between birth and three year of age

C)

There is currently no effective treatment of Huntington's disease

D)

Huntington's disease is caused by the expression of a recessive allele

View Answer
140) Which one is component of Ornithine cycle?

A)

Ornithine, citrulline and alanine

B)

Ornithine, citrulline and arginine

C)

Amino acid are not used

D)

Ornithine, citrulline and fumaric acid

View Answer
141) Chromosome complement with 2n - 1 is called

A)

monosomy

B)

nullisomy

C)

trisomy

D)

tetrasomy

View Answer
142) Which of the following is not vestigial in man?

A)

Tail vertebrae

B)

Nails

C)

Nictitating membrane

D)

Vermiform appendix

View Answer
143) Small fish get stuck near the bottom of a shark and derives its nutrition from it. This kind of association is called as

A)

antibiosis

B)

commensalism

C)

predation

D)

parasitism

View Answer
144) The group of Anamniota includes

A)

reptiles and birds

B)

birds and mammals

C)

fishes an amphibians

D)

reptiles and mammals

View Answer
145) The excretory material of bony fish is

A)

urea

B)

protein

C)

ammonia

D)

amino acid

View Answer
146) The leucocytes contain which of the following in large quantity?

A)

Basophils

B)

Neutrophils

C)

Eosinophils

D)

Monocytes

View Answer
147) During inspiration, the diaphragm

A)

expands

B)

shows no change

C)

contracts and flattens

D)

relaxes to become dome-shaped

View Answer
148) The function of pineal body is to

A)

lighten the skin colours

B)

control sexual behavior

C)

regulates the period of puberty

D)

All of the above

View Answer
149) Synsacrum of fowl consists of about

A)

29 vertebrae

B)

3 vertebrae

C)

16 vertebrae

D)

single vertebrae

View Answer
150) Which of the following was formed in S Miller's experiment?

A)

Amino acids

B)

Nucleic acids

C)

UV radiations

D)

Microspheres

View Answer
151) Jumping genes in maize were discovered by

A)

Hugo de Vries

B)

Barbara McClintock

C)

T H Morgan

D)

Mendel

View Answer
152) Streptomycin is obtained from

A)

Streptomyces griseus

B)

S. aureofaciens

C)

S. venezuelae

D)

S. ramosus

View Answer
153) Binomial system of nomenclature was given by

A)

Julian Huxley

B)

Bentham and Hooker

C)

Linnaeus

D)

Casper Bauhin

View Answer
154) Indusium is found in

A)

algae

B)

ferns

C)

moss

D)

Cycas

View Answer
155) The vacuole is lined by a membrane called

A)

to no plast

B)

jacket

C)

cell membrane

D)

to neoplasm

View Answer
156) Agar-agar is obtained from

A)

Chlorella

B)

Spirogyra

C)

Ulothrix

D)

Gelidium

View Answer
157) DNA element with ability to change position'is called

A)

cistron

B)

transposon

C)

intron

D)

recon

View Answer
158) Initiation codon is

A)

UUU

B)

UGA

C)

AUG

D)

UAG

View Answer
159) DNA multiplication is called

A)

translation

B)

replication

C)

transduction

D)

transcription

View Answer
160) Duramen is present in

A)

inner region of secondary wood

B)

part of sap wood

C)

outer region of secondary wood

D)

region of pericycle

View Answer
161) In plants, water supply is due to.

A)

osmosis

B)

imbibition

C)

guttation

D)

adhesion force

View Answer
162) Most of the economically important fibre yielding plants belong to family

A)

Malvaceae

B)

Solanaceae

C)

Cruciferae

D)

Poaceae

View Answer
163) Paraffin wax is

A)

ester

B)

acid

C)

monohydric alcohol

D)

cholesterol

View Answer
164) Which is always present in photochemical smog?

A)

\[{{O}_{3}}\]

B)

\[C{{O}_{2}}\]

C)

\[S{{O}_{2}}\]

D)

\[C{{H}_{4}}\]

View Answer
165) In cell cycle,   during which phase, chromosomes are arranged in equatorial plate?

A)

Metaphase

B)

Anaphase

C)

Telophase

D)

Prophase

View Answer
166) The soil which is transported by wind is known as

A)

colluvial

B)

eolian

C)

aluvial

D)

glacial soil

View Answer
167) Spindle fibre is made up of

A)

tubulin

B)

humulin

C)

intermediate filament

D)

Hagellin

View Answer
168) Lichen is the pioneer vegetation on which succession?

A)

Hydrosere

B)

Lithosere

C)

Psammosere

D)

Xerosere

View Answer
169) Law of limiting factors was given by

A)

Leibig

B)

Blackman

C)

Calvin

D)

Amon

View Answer
170) In Pinus, male cone bears a large number of

A)

ligules

B)

anthers

C)

micro-sporophylls

D)

mega-sporophylls

View Answer
171) Induction of flowering by low temperature treatment is

A)

vernalization

B)

cryobiology

C)

photoperiodism

D)

pruning

View Answer
172) Decomposers are

A)

auto tiophs

B)

auto heterotrophs

C)

organotrophs

D)

heterotrophs

View Answer
173) Cleavage polyembryony occurs in

A)

Pinus

B)

Mini Cycas

C)

Cycas

D)

Ephedra

View Answer
174) Edible part of mushroom is

A)

basidiocarp

B)

secondary mycelium

C)

primary mycelium

D)

tertiary mycelium

View Answer
175) Which of the following plant product is the hardest?

A)

Lignin

B)

Cutin

C)

Suberin

D)

Sporopollenin

View Answer
176) Calyptra is derived from

A)

archegonia

B)

capsule

C)

antheridia

D)

columella

View Answer
177) Clamp connections' are observed in

A)

Basidiomycetes

B)

Zygomycetes

C)

Ascomycetes

D)

Oomycetes

View Answer
178) Leaf abscission is caused by

A)

ABA

B)

cytokinin

C)

auxin

D)

gibberellins

View Answer
179) What is the main cause for the extinction of some species in tropical forest?

A)

Deforestation

B)

Afforestation

C)

Pollution

D)

Soil erosin

View Answer
180) Most accepted theory for ascent of sap is

A)

capillarity theory

B)

root pressure theory

C)

pulsation theory

D)

transpiration pull

View Answer
181) Which enzyme converts glucose into alcohol?

A)

Zymase

B)

Diastase

C)

Invertase

D)

Lipase

View Answer
182) Which of the following is not the feature of gymnosperms?

A)

Parallel venation

B)

Perennial plants

C)

Distinct branches (long and short branches)

D)

Xylem with vessels

View Answer
183) The presence of diversity at the junction of territories of two different habitats is known as

A)

bottle neck effect

B)

edge effect

C)

junction effect

D)

Pasteur effect

View Answer
184) In which form does the food transported in plants?

A)

Sucrose

B)

Fructose

C)

Glucose

D)

Lactose

View Answer
185) Lady finger belongs to family

A)

Malvaceae

B)

Cucurbitaceae

C)

Liliaceae

D)

Brassicaceae

View Answer
186) In Cycas, pollination takes place in

A)

3 celled stage

B)

4 celled stage

C)

2 celled stage

D)

1 celled stage

View Answer
187) The bioassay of auxin is

A)

avena curvature test

B)

callus formation

C)

culture of fungus

D)

seed dormancy

View Answer
188) Energy transferred from one trophic level to another is

A)

5%

B)

10%

C)

15%

D)

20%

View Answer
189) A eukaryotic gene contains two kinds of base sequences. Which of these plays an important role in protein synthesis?

A)

Introns

B)

Exons

C)

Both [a] and [b]

D)

None of these

View Answer
190) The number of hydrogen bonds between adenine and thymine in a DNA molecule is

A)

two

B)

three

C)

four

D)

eight

View Answer
191) L-shaped chromosomes are also called

A)

acrocentric

B)

telocentric

C)

sub-metacentric

D)

None of these

View Answer
192) Which of the following is/are grouped under phanerogams?

A)

Angiosperms

B)

Gymnosperms

C)

Pteridophytes

D)

Both [a] and [b]

View Answer
193) A bacterium divides after every 35 min., if a culture containing 105 cells per mL is grown, then cell concentration per mL after 175 min. will be

A)

\[175\times {{10}^{5}}\]

B)

\[125\times {{10}^{5}}\]

C)

\[48\times {{10}^{5}}\]

D)

\[32\times {{10}^{5}}\]

View Answer
194) Double fertilization occurs among

A)

algae

B)

bryophytes

C)

angiosperms

D)

gymnosperms

View Answer
195) Which of the following theory gives the latest explanation for the closure of stomata?

A)

ABA theory

B)

Munch theory

C)

Starch glucose theory

D)

Active K4 transport theory

View Answer
196) Biological concept of species is mainly based on

A)

reproductive isolation

B)

morphological features only

C)

methods of reproduction only

D)

morphology and methods of reproduction

View Answer
197) In the treatment of waste water discharge, which treatment stage involves biological treatment ?

A)

Primary treatment

B)

Secondary treatment

C)

Tertiary treatment

D)

Reverse osmosis stage

View Answer
198) Nucellus forms which of the following part of fruit ?

A)

Seed coat

B)

Perisperm

C)

Seed

D)

Raphe

View Answer
199) If root of a flowering plant has 24 chromosomes, then its gamete has how many chromosomes ?

A)

24

B)

12

C)

4

D)

8

View Answer
200) \[{{A}_{0}}\] layer is rich in

A)

minerals

B)

humus

C)

litter

D)

None of these

View Answer

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Solved papers for Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2008

done Chhattisgarh PMT Solved Paper-2008 Total Questions - 200

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Chhattisgarh PMT Solved Paper-2008 Total Questions - 200