Solved papers for Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2009

Chhattisgarh PMT Solved Paper-2009 Total Questions - 200

1) Itencrierence may be seen using two independent

A)

sodium lamps

B)

fluorescent tubes

C)

lasers

D)

mercury vapour lamps

View Answer
2) The focal lengths of the objective aiidthe eye piece of telescope are 100 cm and 10 cm respectively. The magnification of the telescope when final image is formed at

A)

\[0.1\]

B)

\[10\]

C)

W 100

D)

\[\infty \]

View Answer
3) An electromagnetic wave has

A)

electric vector only

B)

magnetic vector only

C)

eiectric and magnetic vectors perpendicular to each other

D)

neither the electric vector nor the magnetic vector

View Answer
4) 160W-60V lamp is connected at 60 V DC Supply. The number of electrons passing trough the lamp in 1 min is

A)

\[{{10}^{19}}\]

B)

\[{{10}^{21}}\]

C)

\[1.6\times {{10}^{19}}\]

D)

\[1.4\times {{10}^{20}}\] (The charge of electron \[1.6\times {{10}^{-19}}C)\]

View Answer
5) If a current is allowed to pass through a circuit coasisung of two dissimilar metals, thers is eaher evolution or absorption of heat at the junction, depending upon the direction of the current. The effect is known as

A)

See back effect

B)

Joule effect

C)

Peltier effect

D)

Thomson effect

View Answer
6) The energy of an X-ray photon of wavelength\[1\,\overset{\text{o}}{\mathop{\text{A}}}\,\]is \[(h=6.6\times {{10}^{-34}}\text{J-s})\]

A)

24.6 keV

B)

6.1 keV

C)

12.3 keV

D)

1.2 keV

View Answer
7) Gravitational field is

A)

conservative

B)

non-conservative

C)

electromagnetic

D)

magnetic

View Answer
8) According to Maxwell's law of distribution of velocities of molecules, the most probable velocity is

A)

greater than the mean velocity

B)

equal to the mean velocity

C)

equal to the root mean square velocity

D)

less than the root mean square velocity

View Answer
9) The photons in a radio wave of wavelength \[3\times {{10}^{4}}cm\]have energy

A)

\[6.62\times {{10}^{-10}}\text{J}\]

B)

\[19.86\times {{10}^{-24}}\text{J}\]

C)

\[6.62\times {{10}^{-28}}\text{J}\]

D)

\[2.2\times {{10}^{-35}}\text{J}\]

View Answer
10) According to Bohr's theory of hydrogen atom, for the electron in the \[{{\text{n}}^{\text{th}}}\] allowed orbit the linear momentum is proportional to 1/n (ii) radius is proportional to n (iii) kinetic energy is proportional to 1/n2 (iv) angular momentum is proportional to n Choose the correct option from the codes given below:

A)

(i), (iii), (iv)

B)

(i)

C)

(i), (ii)

D)

(iii)

View Answer
11) In the circuit shown the equivalent resistance between A and B is

A)

\[27\,\Omega \]

B)

\[18\,\Omega \]

C)

\[9\,\Omega \]

D)

\[3\,\Omega \]

View Answer
12) When two sinusoidal waves moving at right angle to each other superimpose, they produce

A)

beats

B)

interference

C)

stationary waves

D)

Lissajous figure

View Answer
13) Each of the properties of sound in List-\[\text{I}\] primarily depends on one of the quantities in List-\[\text{II}\text{.}\] Select the correct answer (matching List-\[\text{I}\] with List-\[\text{II}\text{.}\]) as per code given below the lists

\[\text{List}\,\text{-I}\] \[\text{List}\,\text{-II}\]

(A) Loudness (1) Waveform

(B) Pitch (2) Frequency

(C) Quality (3) Intensity

Codes:

A)

A-1     B-2           C-3

B)

A-3      B-2           C-1

C)

A-2      B-3          C-1

D)

A-2      B-1           C-3

View Answer
14) One of the causes of the breadth of the spectral lines is

A)

doppler's effect

B)

dispersion

C)

reflection

D)

refraction

View Answer
15) In a stationary wave represented by \[y=2a\,\cos kx\,\sin \,\omega t\]the intensity at a certain point is maximum when

A)

cos toe is maximum

B)

cos toe is minimum

C)

sin cot is maximum

D)

sin cot is minimum

View Answer
16) If a big drop of water is broken into smaller drops the surface energy

A)

increases

B)

decreases

C)

remains unchanged

D)

can increase as well as decrease

View Answer
17) Consider the mechanical vibrating systems shown in figures A, B, C and D                                                                       The vibrations are simple harmonic in

A)

A,C

B)

A,B,C

C)

B, D

D)

A, B, C, D

View Answer
18) If the differential equation given by \[\frac{{{d}^{2}}y}{d{{t}^{2}}}+2k\frac{dy}{dt}+{{\omega }^{2}}y={{F}_{0}}\,\sin \,pt\]describes the oscillatory motion of body in a dissipative medium under the influence of a periodic force, then the state of maximum amplitude of the oscillation is a measure of

A)

free vibration

B)

damped vibration

C)

forced vibration

D)

resonance

View Answer
19)  A grating which would be most suitable for constructing a spectrometer for the visible and ultraviolet region, should have

A)

100 lines/cm

B)

1000 lines/cm

C)

10000 lines/cm

D)

1000000 lines/cm

View Answer
20) A grating which would be most suitable for constructing a spectrometer for the visible and ultraviolet region should have \[1000000\text{ }lines\text{ }c{{m}^{-1}}.\] Directions : The following 5 (.five) items consists of two statements, one labelled the 'Assertion 'and the other labelled the 'Reason R'. You are to examine these two statements carefully and decide if the Assertion A and the Reason R are individually true and of so, whether the reason is correct explanation of the Assertion. Select your answer to these items using the codes given below and mark your answer sheet accordingly. Codes: Both A and R are true and R is the correct explanation of A. Both A and R are true and R is NOT a correct explanation of A. A is true but R is false. A is false but R is true. Assertion : The angular momentum under a central force is constant. Reason (R): Inverse square law of force is conservative.

A)

Both A and R are true and R is the correct explanation of A.

B)

Both A and R are true and R is NOT a correct explanation of A.

C)

A is true but R is false.

D)

A is false but R is true.

View Answer
21) Assertion The upper surface of the Wings of an aeroplane is made convex and the Lower surface is made concave. Reason (R) : The air currents at the top have A smaller and thus less pressure at the Bottom than at the top.

A)

Both A and R are true and R is the correct explanation of A.

B)

Both A and R are true and R is NOT a correct explanation of A.

C)

A is true but R is false.

D)

A is false but R is true.

View Answer
22) Assertion : All the rain drops hit the Surface of theearth with the same constant velocity. Reason (R) : An object falling through a viscous medium eventually attains a terminal velocity.

A)

Both A and R are true and R is the correct explanation of A.

B)

Both A and R are true and R is NOT a correct explanation of A.

C)

A is true but R is false.

D)

A is false but R is true.

View Answer
23) Assertion : Photoelectric effect can take Place only with an electron bound in the atom. Reason(R) : Electron is a fermion where as proton is a boson.

A)

Both A and R are true and R is the correct explanation of A.

B)

Both A and R are true and R is NOT a correct explanation of A.

C)

A is true but R is false.

D)

A is false but R is true.

View Answer
24) Assertion : Fission of \[_{\text{92}}^{\text{235}}\text{U}\]is brought about by a thermal neutron, whereas that of \[_{\text{92}}^{\text{238}}\text{U}\]is brought about by a fast neutron. Reason (R): \[_{\text{92}}^{\text{235}}\text{U}\]is an even-odd nucleus, whereas \[_{\text{92}}^{\text{238}}\text{U}\]is an even-even nucleus.

A)

Both A and R are true and R is the correct explanation of A.

B)

Both A and R are true and R is NOT a correct explanation of A.

C)

A is true but R is false.

D)

A is false but R is true.

View Answer
25) 25.      Damping on sharpness of resonance has

A)

            no effect

B)

            more damping, sharper resonance

C)

            less damping, sharper resonance

D)

            less damping, less sharp resonance

View Answer
26) 26.      A superconducting material is

A)

            ferromagnetic

B)

            ferroelectric

C)

            diamagnetic

D)

            paramagnetic

View Answer
27) 27.      If the free electron density be n and relaxation time be \[\tau ,\]the electrical conductivity of a     conductor may be expressed as

A)

            \[\frac{ne\tau }{{{m}_{e}}}\]

B)

            \[\frac{n{{e}^{2}}\tau }{{{m}_{e}}}\]

C)

            \[\frac{n{{e}^{2}}}{\tau {{m}_{e}}}\]

D)

            \[\frac{{{m}_{e}}{{e}^{2}}\tau }{n}\]

View Answer
28) The spacing between the principal planes of a crystal is \[4\,\overset{\text{o}}{\mathop{\text{A}}}\,\]. It is found that first order bragg reflection of a beam of monochromatic X-rays occurs at an angle of \[30{}^\circ \]. The wavelength of X-rays is

A)

\[4\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

B)

\[2\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

C)

\[1\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

D)

\[1.5\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

View Answer
29) An ideal gas is allowed to expand freely against a vacuum in a rigid insulated container. The gas undergoes

A)

an increase in its internal energy

B)

a decrease in its internal energy

C)

neither an increase nor a decrease in its temperature or internal energy

D)

a decrease in temperature

View Answer
30) The relation between electric field vector\[\mathbf{\vec{E}}\] the displacement vector \[\mathbf{\vec{D}}\] and the polarization vector \[\mathbf{\vec{P}}\] for a dielectric placed in electric field \[\mathbf{\vec{E}}\] is given by

A)

\[\mathbf{\vec{P}}={{\varepsilon }_{0}}\mathbf{\vec{E}}+\mathbf{\vec{D}}\]

B)

\[\mathbf{\vec{P}}=\mathbf{\vec{D}}+\mathbf{\vec{E}}\]

C)

\[\mathbf{\vec{D}}={{\varepsilon }_{0}}\mathbf{\vec{E}}+\mathbf{\vec{P}}\]

D)

\[\mathbf{\vec{E}}=\mathbf{\vec{D}}+\mathbf{\vec{P}}\]

View Answer
31) If Young's modulus of elasticity Y for a material is one and half times its rigidity coefficient \[\eta \] the Poisson ratio \[\sigma \] will be

A)

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

B)

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

C)

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

D)

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

View Answer
32) Which one of the following is not a fundamental \[\text{SI}\] unit ?

A)

Ampere

B)

Candela

C)

Newton

D)

Kelvin

View Answer
33) The formula for horizontal range of a projectile is \[S=\frac{{{v}^{2}}\sin {{\,}^{2}}\text{ }\!\!\theta\!\!\text{ }}{2g}\] where v is initial speed, \[\text{ }\!\!\theta\!\!\text{ }\] angle of inclination and g is acceleration due to gravity. The Wheatstone bridge shown in figure can be used to determine the range if the following arrangement is made

A)

                Q proportional to v2 P proportional to g R proportional to \[{{\sin }^{2}}\text{ }\!\!\theta\!\!\text{ }\]

B)

                Q proportional to g P proportional to v2 R proportional to \[{{\sin }^{2}}\text{ }\!\!\theta\!\!\text{ }\]

C)

                Q proportional to g P proportional to \[{{\sin }^{2}}\text{ }\!\!\theta\!\!\text{ }\] R proportional to v2

D)

                Q proportional to \[{{\sin }^{2}}\text{ }\!\!\theta\!\!\text{ }\] P proportional to v2 R proportional to g

View Answer
34) One Becquerel is defined as

A)

1 disintegration per sec

B)

106 disintegration per sec

C)

\[3.7\times {{10}^{10}}\] disintegration per sec

D)

103 disintegration per sec

View Answer
35) The shortest wavelength which can be obtained in hydrogen spectrum is\[(R={{10}^{7}}{{\text{m}}^{\text{-1}}})\]

A)

\[1000\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

B)

\[800\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

C)

\[1300\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

D)

\[2100\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

View Answer
36) In an ideal choke, ratio of its inductance L to its DC resistance R is

A)

infinity

B)

zero

C)

unity

D)

hundred

View Answer
37) A transformer is often filled with oil. The oil used should have

A)

low viscosity

B)

high dielectric strength

C)

low boiling point

D)

high thermal conducting

View Answer
38) For the circuit shown in figure the potential difference between A and B will be (in volt)

A)

2

B)

1.5

C)

1.0

D)

zero

View Answer
39) An electron microscope is superior to an optical microscope in

A)

having better resolving power

B)

being easy to handle

C)

low cost

D)

quickness of observation

View Answer
40) A zener diode is used for

A)

rectification

B)

modulation

C)

detection

D)

voltage regulation

View Answer
41) A black body at a temperature of \[227{}^\circ C\] radiates heat at the rate of 5 \[c{{m}^{-2}}{{s}^{-1}}.\] temperature of \[727{}^\circ C\] the rate of heat radiated per unit area in cal \[c{{m}^{-2}}{{s}^{-1}}\] is

A)

400

B)

80

C)

40

D)

15

View Answer
42) With the rise of temperature the resistivity of a semiconductor

A)

remains unchanged

B)

increases

C)

decreases

D)

first increases and then decreases

View Answer
43) The terminal velocity of spherical ball of radius a falling through a viscous liquid a proportional to

A)

\[a\]

B)

\[{{a}^{2}}\]

C)

\[{{a}^{3}}\]

D)

\[{{a}^{-1}}\]

View Answer
44) The physical quantity which is not a unit of energy is

A)

volt-coulomb

B)

Me V-sec

C)

henry (ampere)2

D)

farad-(volt)2

View Answer
45) 45. The above figure shows electric field E at a distance r in any direction from the origin O. The electric field E is due to

A)

a charged hollow metallic sphere of radius OP with centre at O

B)

a charged solid metallic sphere of radius OP with centre at O

C)

a uniformly charged non-conducting sphere of radius OP with centre at O

D)

a uniformly charged non-conducting hollow sphere of radius OP with centre at O

View Answer
46) 46.      ??Good emitters are good absorbers?? is a statement concluded from

A)

            Newton?s law of cooling

B)

            Stefan?s law of radiation

C)

            Provost?s theory

D)

            Kirchhoff?s law

View Answer
47) 47.      In a photoelectric experiment the relation between applied potential difference between              cathode and anode V and the photoelectric current \[I\] was found to be shown in graph below. If planck?s constant \[h=6.6\times {{10}^{-34}}\]J-s, the      frequency of incident radiation would be nearly                (in s-1)

A)

            \[0.436\times {{10}^{18}}\]

B)

            \[0.436\times {{10}^{17}}\]

C)

            \[0.775\times {{10}^{15}}\]

D)

            \[0.775\times {{10}^{16}}\]

View Answer
48) For hydrogen atom electron in \[{{\text{n}}^{\text{th}}}\] Bohr orbit, the ratio of radius of orbit to its de-Broglie wavelength is

A)

\[\frac{n}{2\pi }\]

B)

\[\frac{{{n}^{2}}}{2\pi }\]

C)

\[\frac{1}{2\pi n}\]

D)

\[\frac{1}{2\pi {{n}^{2}}}\]

View Answer
49) If the B-H curves of two samples of P and Q of iron are as shown below, then which one of the following statements is correct?

A)

Both P and Q are suitable for making permanent magnet

B)

P is suitable for making permanent magnet and Q for making electromagnet

C)

P is suitable for making electromagnet and Q is suitable for permanent magnet

D)

Both P and Q are suitable for making electromagnets

View Answer
50) A current passing through a coil of self inductance of 2 mH changes at the rate of 20 mA s-1. The emf induced in the coil is

A)

\[10\mu V\]

B)

\[40\mu V\]

C)

10 mV

D)

40 mV

View Answer
51) In the electrolytic cell electron flows from

A)

cathode to anode in solution

B)

cathode to anode through external circuit

C)

cathode to anode through internal circuit

D)

cathode to cathode through external circuit

View Answer
52) In first order reaction, the concentration of reactant decreases from \[800\text{ }mol\text{ }c{{m}^{-3}}\]to \[50\text{ }mol\text{ }c{{m}^{-3}}\]in \[2\times {{10}^{4}}s.\]. The rate constant is

A)

\[2\times {{10}^{4}}{{s}^{-1}}\]

B)

\[3.45\times {{10}^{-5}}{{s}^{-1}}\]

C)

\[1.386\times {{10}^{-4}}{{s}^{-1}}\]

D)

\[2\times {{10}^{-4}}{{s}^{-1}}\]

View Answer
53) \[{{H}_{3}}B{{O}_{3}}\]is

A)

mono basic add and weak Lewis add

B)

mono basic and weak Bronsted add

C)

mono basic and strong Lewis add

D)

tri basic and weak Bronsted acid

View Answer
54) During depression of freezing point in a solution, the following are in equilibrium

A)

liquid solvent-solid solvent

B)

liquid solute-solid solute

C)

liquid solute-solid solvent

D)

liquid solvent-solid solute

View Answer
55) Benzamide on reaction with \[POC{{l}_{3}}\] gives

A)

aniline

B)

chlorobenzene

C)

phenyl amine

D)

phenyl nitrile

View Answer
56) The acid having \[O-O\] bond is

A)

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

B)

\[{{H}_{2}}{{S}_{2}}{{O}_{6}}\]

C)

\[{{H}_{2}}{{S}_{2}}{{O}_{8}}\]

D)

\[{{H}_{2}}{{S}_{4}}{{O}_{6}}\]

View Answer
57) A sodium salt on treatment with \[MgC{{l}_{2}}\] gives white propitiate on heating. The anion of sodium salt is

A)

\[HCO_{3}^{-}\]

B)

\[CO_{3}^{2-}\]

C)

\[NO_{3}^{-}\]

D)

\[SO_{4}^{2-}\]

View Answer
58) According to molecular orbital theory which is correct statement regarding \[{{O}_{2}}\]?

A)

Paramagnetic and bond order \[<O_{2}^{-}\]

B)

Paramagnetic and bond order \[>O_{2}^{-}\]

C)

Diamagnetic and bond order \[<O_{2}^{-}\]

D)

Diamagnetic and bond order \[>O_{2}^{-}\]

View Answer
59) Adsorption of gases on solid surface is exothermic since

A)

enthalpy is positive

B)

entropy is negative

C)

entropy increases

D)

free energy increases

View Answer
60) Which of the following is not oxidised by ozone?

A)

\[KI\]

B)

\[FeS{{O}_{4}}\]

C)

\[KMn{{O}_{4}}\]

D)

\[{{K}_{2}}Mn{{O}_{4}}\]

View Answer
61) Which is necessary for conversion of butane-2-one into propanoic acid?

A)

Tollen reagent

B)

Fehling solution

C)

\[NaOH/{{I}_{2}}/{{H}^{+}}\]

D)

\[NaOH/NaI/{{H}^{+}}\]

View Answer
62) When phenyl magnesium bromide is reacted with ethyl alcohol, product is

A)

phenol

B)

t-butyl benzene

C)

benzene

D)

t-butyl phenyl ether

View Answer
63) The number of radial nodes of 3s and 2p orbital are

A)

\[2,0\]

B)

\[0,2\]

C)

\[1,2\]

D)

\[2,1\]

View Answer
64) The ratio of rates of diffusion of helium and methane   under   same   conditions   of temperature and pressure will be

A)

\[4:1\]

B)

\[2:1\]

C)

\[1:1\]

D)

\[1:2\]

View Answer
65) A metal nitrate reacts with \[KI\] to give black precipitate which turns to orange on addition of \[KI\]. Metal is

A)

\[H{{g}^{2+}}\]

B)

\[B{{i}^{3+}}\]

C)

\[P{{b}^{2+}}\]

D)

\[C{{u}^{+}}\]

View Answer
66) 2-acetoxy benzoic add is

A)

antiseptic

B)

antibiotic

C)

dye

D)

aspirin

View Answer
67) Silica is soluble in

A)

\[HCl\]

B)

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

C)

\[{{H}_{2}}S{{O}_{4}}\]

D)

\[HF\]

View Answer
68) The use of alums in purifying muddy water , involves

A)

absorption

B)

adsorption

C)

dialysis

D)

coagulation

View Answer
69) Which type of metal form effective catalyst?

A)

Alkali metal

B)

Transition metal

C)

Alkaline earth metal

D)

Radioactive metal

View Answer
70) The rusting of iron is catalysed by

A)

\[Fe\]

B)

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

C)

\[{{H}^{+}}\]

D)

\[Zn\]

View Answer
71) IUPAC name of the following compound is \[\underset{CN}{\mathop{\underset{|}{\mathop{C}}\,}}\,{{H}_{2}}-\underset{CN}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-\underset{CN}{\mathop{\underset{|}{\mathop{C}}\,}}\,{{H}_{2}}\]

A)

\[1,2,3,-tricyanopropane\]

B)

\[1-2,3-cyanopropane\]

C)

\[1-2,\text{ }3-propanetrinitrile\]

D)

\[3-cyano-1,\text{ }5-dinitrile\]

View Answer
72) Standard free energy change for an equilibrium is zero, the value of \[{{K}_{p}}\] is

A)

zero

B)

\[1\]

C)

\[2\]

D)

\[100\]

View Answer
73) Hydrolysis of \[PC{{l}_{5}}\] gives

A)

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

B)

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

C)

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

D)

\[{{H}_{3}}P{{O}_{4}}\]

View Answer
74) Which is responsible for 'green house effect'?

A)

Methane

B)

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

C)

\[CO\]

D)

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

View Answer
75) In solid \[CuS{{O}_{4}}\].\[5{{H}_{2}}O\] copper is coordinated to number of water molecules

A)

\[5\]

B)

\[4\]

C)

\[1\]

D)

\[2\]

View Answer
76) Most stable carbonium ion is

A)

\[p-N{{O}_{2}}-{{C}_{6}}{{H}_{4}}-CH_{2}^{+}\]

B)

\[{{C}_{6}}{{H}_{5}}CH_{2}^{+}\]

C)

\[p-Cl-{{C}_{6}}{{H}_{4}}-CH_{2}^{+}\]

D)

\[p-C{{H}_{3}}O-{{C}_{6}}{{H}_{4}}-CH_{2}^{+}\]

View Answer
77) \[0.2\] molal acid HX ionises 20%. \[{{k}_{f}}\] for acid is\[1-86\text{ }molalit{{y}^{-1}}\]. Freezing point is

A)

\[-0.45\]

B)

\[-0.50\]

C)

\[-0.31\]

D)

\[-0.53\]

View Answer
78) Natural rubber is polymer of

A)

trans-isoprene

B)

cis-isoprene

C)

mixture of cis and trans-isoprene

D)

None of the above

View Answer
79) The most stable conformation of n-butane is

A)

skew

B)

eclipsed

C)

staggered

D)

None of these

View Answer
80) Antidote for carbon monoxide is

A)

carborundum

B)

carbogen

C)

carbonic acid

D)

pure oxygen

View Answer
81) Among the following, the molecule with highest dipole moment is

A)

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

B)

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

C)

\[CHC{{l}_{3}}\]

D)

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

View Answer
82) Which are isoelectronic and isostructural?

A)

\[NO_{3}^{-},CO_{3}^{2-}\]

B)

\[S{{O}_{3}},NO_{3}^{-}\]

C)

\[ClO_{3}^{-},CO_{3}^{2-}\]

D)

\[CO_{3}^{2-},S{{O}_{3}}\]

View Answer
83) The species having tetrahedral shape is

A)

\[{{[PdC{{l}_{4}}]}^{2-}}\]

B)

\[[Ni(CN)]_{4}^{2-}\]

C)

\[{{[Pd{{(CN)}_{4}}]}^{2-}}\]

D)

\[{{[NiC{{l}_{4}}]}^{2-}}\]

View Answer
84) Total number of lone pairs of electrons on \[Xe\]in \[XeO{{F}_{4}}\] is

A)

\[0\]

B)

\[1\]

C)

\[2\]

D)

\[3\]

View Answer
85) The number of nodal planes in \[{{p}_{x}}\] orbital is

A)

\[1\]

B)

\[2\]

C)

\[3\]

D)

\[0\]

View Answer
86) Which has the highest nucleophilicity?

A)

\[{{F}^{-}}\]

B)

\[O{{H}^{-}}\]

C)

\[CH_{3}^{-}\]

D)

\[NH_{2}^{-}\]

View Answer
87) Which will exhibit geometrical isomerism?

A)

\[3-phenyl-1-butene\]

B)

\[1-phenyl-2-butene\]

C)

\[2-phenyl-1-butene\]

D)

\[1,\text{ }1-diphenyl-1-propene\]

View Answer
88) Which is the most thermodynamically stable allotropic form of phosphorus?

A)

Red

B)

White

C)

Black

D)

Yellow

View Answer
89) When \[Pb{{O}_{2}}\] reacts with cone \[HN{{O}_{3}},\] the gas evolved is

A)

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

B)

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

C)

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

D)

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

View Answer
90) In which crystal alternate tetrahedral voids are occupied?

A)

\[NaCl\]

B)

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

C)

\[ZnS\]

D)

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

View Answer
91) In thermodynamics, a process is called reversible when

A)

surrounding and system change into each other

B)

there is no boundary between system and surrounding

C)

the surrounding are always in equilibrium with the system

D)

the system changes into surrounding spontaneously

View Answer
92) In the standard is ation of \[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\] using \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] by iodometry, the equivalent weight of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] is

A)

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

B)

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

C)

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

D)

same as molecular weight

View Answer
93) The correct order of first ionisation potential is

A)

\[K>Na>Li\]

B)

\[Be>Mg>Ca\]

C)

\[B>C>N\]

D)

\[Ge>Si>C\]

View Answer
94) The slag formed in extraction of copper is

A)

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

B)

\[C{{u}_{2}}O+FeS\]

C)

\[C{{u}_{2}}S+FeO\]

D)

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

View Answer
95) The root mean square velocity of ideal gas at constant pressure varies with density as

A)

\[{{d}^{2}}\]

B)

\[d\]

C)

\[\sqrt{d}\]

D)

\[\frac{1}{\sqrt{d}}\]

View Answer
96) The correct order of acidic strength is

A)

\[C{{l}_{2}}{{O}_{7}}>S{{O}_{2}}>{{P}_{4}}{{O}_{10}}\]

B)

\[C{{O}_{2}}>{{N}_{2}}{{O}_{5}}>S{{O}_{3}}\]

C)

\[N{{a}_{2}}O>MgO>A{{l}_{2}}{{O}_{3}}\]

D)

\[{{K}_{2}}O>CaO>MgO\]

View Answer
97) Standard solution of \[KN{{O}_{3}}\]is used to make salt bridge because

A)

velocity of \[{{K}^{+}}\] is greater than \[NO_{3}^{-}\]

B)

velocity of \[NO_{3}^{-}\] is greater than \[{{K}^{+}}\]

C)

velocity of \[{{K}^{+}}\] and \[NO_{3}^{-}\] are same

D)

\[KN{{O}_{3}}\]is highly soluble in water

View Answer
98) Anhydrous ferric chloride is prepared by

A)

heating \[FeC{{l}_{3}}\]at high temperature h stream of air

B)

heating iron in stream of dry chlorine

C)

heating ferric oxide with hydrochloric acid

D)

reacting iron with hydrochloric acid

View Answer
99) Which represent mode of hybridization \[s{{p}^{2}}-s{{p}^{2}}-sp-sp\] from left to right?

A)

\[{{H}_{2}}C=CH-C\equiv CH\]

B)

\[HC\equiv C-C\equiv CH\]

C)

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

D)

View Answer
100) \[N{{a}^{23}}\] is more stable isotope of\[Na\]. The process by which \[_{11}N{{a}^{24}}\] can undergo radioactive decay is

A)

\[\beta \]-rays

B)

\[\alpha \]-rays

C)

\[{{\beta }^{+}}\]-rays

D)

\[\gamma \]-rays

View Answer
101) Contractile vacuoles in Protozoa serve the purpose of

A)

water circulation

B)

digestion

C)

osmoregularion

D)

excretion

View Answer
102) A ceil organelle that is exceptionally rich in hydrolytic enzymes is

A)

ribosome

B)

endoplasmic reticulum

C)

lysosome

D)

mitochondria

View Answer
103) Pearls are produced by the animals of phylum

A)

Annelida

B)

Arthropoda

C)

Mollusca

D)

Echinodermata

View Answer
104) Restriction enzymes are

A)

enzymes that restrict uncontrolled growth of cell, which results in cancer

B)

enzymes that restrict DNA synthesis to the minimum necessary level and prevent polyploidy

C)

enzymes that cleave phosphodi ester linkages in DNA only at a specific sequence yielding fragments of reproducible sizes

D)

enzymes that cleave polycistronic m-RNA to yield individual cisirons

View Answer
105) An analysis of a DNA (double stranded) sample yielded 18% cytosine. What would be the percentage of other bases in this sample?

A)

\[T-32%,\text{ }A-32%,\text{ }G-18%\]

B)

\[T-32%,A-18%,G-32%\]

C)

\[T-18%,\text{ }A-32%,\text{ }G-32%\]

D)

\[1-40%,\text{ }A-22%,\text{ }G-20%\]

View Answer
106) Which of the following is a mismatch?

A)

Amphetamine-a stimulant

B)

Morphine - an opiate narcotic

C)

LSD - a hallucinogen

D)

Cocaine - a sedative/tranquillizer

View Answer
107) Which of the following is not related to sex chromosome X or Y?

A)

Turner's syndrome

B)

Ktinefelter's syndrome

C)

Down's syndrome

D)

Haemophilia and colour blindness

View Answer
108) Which of the following is a part of pectoral girdle?

A)

Ilium

B)

Ischium

C)

Acetabulum

D)

Glenoid cavity

View Answer
109) Gir sanctuary is mainly for

A)

rhino

B)

tiger

C)

lion

D)

elephant

View Answer
110) Which of the following organs is called the graveyard of RBCs?

A)

Thymus

B)

Liver

C)

Spleen

D)

Kidney

View Answer
111) Cyanides like KCN, NaCN are lethal to humans because they

A)

interfere with protein synthesis

B)

stop the electron transport chain in the last step by combining with cytochrome oxidase

C)

stop DNA-replication

D)

induce accumulation of waste materials inside the cell

View Answer
112) Which one is an iron storage protein?

A)

Myosin

B)

Glutelin

C)

Ferritine

D)

Immunoglobulin

View Answer
113) Which of the following is a mismatch?

A)

\[\text{ }\!\!\beta\!\!\text{ -}\]cells of islets of Langerhans--insulin

B)

\[\text{ }\!\!\alpha\!\!\text{ -}\]celis of islets ofLangerhans--insulin

C)

Leydig cells -- testosterone

D)

Corpus luteum -- progesterone

View Answer
114) The genetic material of AIDS virus in

A)

double stranded DNA

B)

double stranded RNA

C)

single stranded RNA

D)

single stranded DNA

View Answer
115) Lac is produced by lac insect as

A)

secretion from the body

B)

excretion from the body

C)

faecal matter

D)

excess food oozing out of body

View Answer
116) Water vascular system is characteristic of

A)

Protozoa

B)

Porifera

C)

Annelida

D)

Echinodermata

View Answer
117) Science, which deals with the study of ageing is known as

A)

Teratology

B)

Gerontology

C)

Limnology

D)

Palaeontology

View Answer
118) Taxonomically, which of the following set is matched correctly?

A)

Cattle fish, jelly fish, silver fish

B)

Bat, pigeon, kite

C)

Lobsters, spider, shrimps

D)

Oyster, otter, Octopus

View Answer
119) Which of the following is not a restriction endonuclease?

A)

\[\text{EcoRI}\]

B)

\[\text{Hind-III}\]

C)

Pst\[\text{-I}\]

D)

DNAse\[\text{-I}\]

View Answer
120) Who proposed theory of imprinting?

A)

Niko Tinbergen

B)

Charles Darwin

C)

Konrad Lorenz

D)

Karl Van Frish

View Answer
121) Which of the following has a triple helix structure?

A)

Haemoglobin

B)

Keratin

C)

Lysozyme

D)

Collagen

View Answer
122) Which of the following statement is true?

A)

Saltatory conduction is seen in non-myelinated nerve fibres

B)

Nissl's granules are found in muscle fibres

C)

Non-myelinated nerve fibres do not possess nodes of Ranvier

D)

Non-myelinated nerve fibres are completely enclosed by myelin sheath

View Answer
123) Which combination is mismatched?

A)

Vitamin-D-Rickets

B)

Thiamine-Beri-beri

C)

Vitamin-K-Sterility

D)

Niacin-Pellagra

View Answer
124) Which of the following gases does not cause acid rain?

A)

Sulphur dioxide

B)

Methane

C)

Nitrous oxide

D)

Carbon monoxide

View Answer
125) Five-kingdom scheme to classify living beings has been proposed by

A)

J B S Haldane

B)

G G Simpson

C)

E Mayr

D)

R H Whittaker

View Answer
126) A normal woman is married with a man having hypertrichosis condition. They got one daughter and one son. What is the possibility of this daughter to have hypertrichosis condition?

A)

0%

B)

25%

C)

50%

D)

100%

View Answer
127) Sea horse is

A)

a bird

B)

a mammal

C)

an amphibian

D)

a fish

View Answer
128) The centrum of eighth vertebra of frog is

A)

procoelous

B)

heterocoelous

C)

amphicoelous

D)

opisthocoelous

View Answer
129) The terminal end of chromosomes is called

A)

centromere

B)

telomere

C)

chromomere

D)

metamere

View Answer
130) Which one of the following animals lay eggs yet the female secretes milk?

A)

Bat

B)

Kangaroo

C)

Platypus

D)

Ostrich

View Answer
131) Which one of the following amino acids is not found in proteins?

A)

Arginine

B)

Ornithine

C)

Aspartic acid

D)

Tyrosine

View Answer
132) In human eyes, colour perception is done by

A)

rod cells only

B)

cone cells only

C)

Both [a] and [b]

D)

choroid layer cells

View Answer
133) ADH regulates the permeability of

A)

proximal convoluted tubule

B)

collecting tubule and distal convoluted tubule

C)

ascending limb of loop of Henie

D)

descending limb of loop of Henie

View Answer
134) Which of the following embryonic membranes structure is excretory in function?

A)

Amnion

B)

Allantois

C)

Yolk sac

D)

Vitelline chorion

View Answer
135) Which of the following is a mismatch?

A)

Giraffe - Lamarck

B)

Drosophila - Morgan

C)

Galapagos island - Darwin's finches

D)

Origin of species - Mendel

View Answer
136) Most of the carbon dioxide is transported in blood is

A)

a gas

B)

carbaminohaemoglobin

C)

serum carbaminoproteins

D)

\[HCO_{3}^{-}\]

View Answer
137) Which of the following type of cartilage is found in tervertebral disc of mammal?

A)

Hyaline cartilage

B)

Fibrous cartilage

C)

Calcified cartilage

D)

Elastic cartilage

View Answer
138) Archaeopteryx is

A)

a living fossil

B)

a mammal

C)

a connecting link between Annelida and Arthropoda

D)

a connecting link between reptiles and birds

View Answer
139) Ink glands are found in

A)

sponge

B)

star fish

C)

sepia

D)

jellyfish

View Answer
140) Which of the following is a harmful social insect?

A)

Termite

B)

Bombyxmori

C)

Tachardia lacca

D)

Apis indica

View Answer
141) Which of the following set is a mis-match?

A)

Phosphoenol pyruvate carboxykinase - Gluconeogenesis

B)

Phospho dehydrogenase- Glycolysis

C)

Succinate dehydrogenase - Kerbs cyclye

D)

Urease

View Answer
142) The largest endangered bird in Indiais

A)

vulture

B)

flamingo

C)

great Indian bustard

D)

great Indian hornbill

View Answer
143) 93.      A woman has haemophilic son and three normal children. Her genotype and that of her husband               with respect to this gene would be

A)

            \[\text{XX}\,\text{and}\,{{\text{X}}^{\text{h}}}\text{Y}\]

B)

            \[{{\text{X}}^{h}}{{\text{X}}^{h}}\,\text{and}\,{{\text{X}}^{\text{h}}}\text{Y}\]

C)

            \[{{\text{X}}^{h}}{{\text{X}}^{h}}\,\text{and}\,\text{XY}\]

D)

            \[{{\text{X}}^{h}}\text{X}\,\text{and}\,\text{XY}\]

View Answer
144) The causative agent of filaria is

A)

Wuchereria bancrofti

B)

Leishmania donovani

C)

Plasmodium vivax

D)

Trypanosoma gambiens

View Answer
145) The copying of mRNA to DNA is known as

A)

replication

B)

transcription

C)

translation

D)

reverse transcription

View Answer
146) Which of the following does not make a nest of its own?

A)

Crow

B)

Parrot

C)

Cuckoo

D)

Sparrow

View Answer
147) Which of the following is not a defence evolved by a prey to avoid predators?

A)

Ejection of noxious chemicals

B)

Possession of toxic hairs

C)

Mimicry of inedible objects

D)

Secretion of pheromones

View Answer
148) The sea snakes have

A)

cylindrical tail

B)

dry homey scale at tail end

C)

laterally compressed tail

D)

dorsoventrally flattened tail

View Answer
149) Pernicious anaemia is caused due to

A)

absence of vitamin-K

B)

lack of vitamin\[-{{B}_{12}}\]

C)

lack of vitamin-C

D)

presence of intrinsic factor

View Answer
150) How many molecules of oxygen can bind to a molecule of haemoglobin?

A)

One

B)

Two

C)

Three

D)

Four

View Answer
151) Insectivorous plant grow generally in soil that are deficient in

A)

water

B)

nitrogen

C)

potassium

D)

calcium

View Answer
152) While entering in the neck of a fern archegonium, sperm shows

A)

phototaxy

B)

chemotaxy

C)

thermotaxy

D)

cyclosis

View Answer
153) Plants which flower only once in their life are termed as

A)

monochlamydous

B)

monocious

C)

monocarpic

D)

monosomic

View Answer
154) Triticum vulgare has been found to be presently evolved as

A)

diploid

B)

tetraploid

C)

pentaploid

D)

hexaploid

View Answer
155) Which of the following clogs the cavity of the xylem vessels?

A)

Tyiosis

B)

Cystolith

C)

Hydathode

D)

Raphide

View Answer
156) Which of the following has multiflagellate sperms?

A)

Equisetum

B)

Riccia

C)

Lycopodium

D)

Anthoceros

View Answer
157)   Which of the following is known as 'bag moss' ?

A)

Polytrichum

B)

Funaria

C)

Sphagnum

D)

Porella

View Answer
158) Which of the following is known as 'living fossil'?

A)

Pinus

B)

Rhynia

C)

Gnetum

D)

Ginkgo

View Answer
159) Which of following is connecting link between glycolysis and Krebs cycle?

A)

Puruvic acid

B)

Isocitric acid

C)

Acetyl Co-A

D)

phoglyceric acid

View Answer
160) The respiratory process of yeast is

A)

rarely anaerobic

B)

anaerobic

C)

purely aerobic

D)

Both [a] and [b]

View Answer
161) Which of the following is important source of edible protein ?

A)

Spirogyra

B)

Porphyra

C)

Spirulina

D)

Cephaleuros

View Answer
162) The male gametophyte in angiosperm is reduced to

A)

one cell

B)

two cells

C)

three cells

D)

four cells

View Answer
163) Recently discovered anti-cancer drug is obtained from

A)

Taxus

B)

Tagetes

C)

Tamarix

D)

Thea

View Answer
164) Pollen embryo sacs are

A)

Pollen like embryo sacs

B)

pollen developed in embryo sacs

C)

embryo sacs developed from pollen

D)

fused pollen and embryo sac

View Answer
165) The plant hormone produced by Rhizobium nodulation is

A)

IBA

B)

NAA

C)

2, 4-D

D)

IAA

View Answer
166) The tunica-corpus theory was proposed by

A)

Hofmeister

B)

Nageli

C)

Strabusrger

D)

Schmidt

View Answer
167) The part of castor seed that yields oil is

A)

cotyledon

B)

caruncle

C)

endosperm

D)

nucellus

View Answer
168) The character found only in halophytes is

A)

sunken stomata

B)

vivipary

C)

velamen tissue

D)

heterophylly

View Answer
169) A hyaline bisexual and self-fertilized flower that does not open at all is

A)

chasmogamaus

B)

apogamous

C)

cleistogamous

D)

polygamous

View Answer
170) Modification of petiole into leaf like structure is called

A)

cladode

B)

phylloclade

C)

phyllode

D)

pistillode

View Answer
171) Which one of the following is a pseudocarp ?

A)

Apple

B)

Guava

C)

Tomato

D)

Banana

View Answer
172) The part of the flower of Crocus that yields saffron is

A)

calyx

B)

corolla

C)

perianth

D)

style and stigma

View Answer
173) Largest moss is

A)

Pogonatum

B)

Funaria

C)

Dawsonia

D)

Polytrichum

View Answer
174) Oil is reserve food in

A)

Chlamydomonas

B)

Oedogonium

C)

Vaucheria

D)

Chara

View Answer
175) Which of the following statement is correct?

A)

Viruses are obligate parasites

B)

All fungi are pathogenic

C)

All algae are eukaryotes

D)

Bacteria are always harmful to mankind

View Answer
176) Late blight of potato is caused by

A)

Cystopus

B)

Phytophthora

C)

Altemaria

D)

Ustilago

View Answer
177) Viruses contain

A)

only RNA

B)

only DNA

C)

either DNA or RNA

D)

neither DNA nor RNA

View Answer
178) The fungus without mycelium is

A)

Puccmia

B)

Phytophthora

C)

Rhizopus

D)

Saccharomyces

View Answer
179) A T-series bacteriophage' can be recognized by its

A)

tadpole shape

B)

rounded shape

C)

irregular shape

D)

rhomboidal shape

View Answer
180) In gymnosperms, the seeds are naked because they lack

A)

integument

B)

nucellus

C)

pericarp

D)

perianth

View Answer
181) The smallest free living organism is

A)

virus

B)

mycoplasma

C)

diatom

D)

cyano bacterium

View Answer
182) Name the fungus that is edible

A)

Penicillium

B)

Mucor

C)

Rhizopus

D)

Morchell

View Answer
183) Characters of both conifers and cycads are found in

A)

Ginkgo

B)

Ephedra

C)

Cupressus

D)

Tsuga

View Answer
184) Cork is obtained from

A)

Quercus suber

B)

Pinus roxbiirghii

C)

Cedrus deodara

D)

Mangifera indica

View Answer
185) The number of RNA molecules in 60S sub-particles of 80S ribosomes are

A)

five

B)

four

C)

three

D)

two

View Answer
186) The number of ATP molecules required to initiate p-oxidation is

A)

1

B)

2

C)

3

D)

4

View Answer
187) Sprouting of potato under storage condition can be prevented by

A)

auxin

B)

gibberellin

C)

ethylene

D)

cylokinin

View Answer
188) The components of PS-l are located on the

A)

stroma

B)

stroma thylakoid

C)

granum thyiakoid

D)

outer surface of stromal and granal thylakoid

View Answer
189) The final electron acceptor in pseudocyclic electron transport in chloroplast is

A)

\[NAD{{P}^{+}}\]

B)

ferredoxin

C)

oxygen

D)

\[NA{{D}^{+}}\]

View Answer
190) Photolysis of water during photosynthesis occurs with the help of

A)

PS-II

B)

PS-I

C)

ferredoxin

D)

cytochrome

View Answer
191) The' lock and key' theory of enzyme structure and function was proposed by

A)

Morgan

B)

Robertson

C)

Brown

D)

Fischer

View Answer
192) Photosynthetic evolution of oxygen requires

A)

Coenzyme

B)

Fe-enzyme

C)

Mn-enzyme

D)

Zn-enzyme

View Answer
193) For good growth of pollen tube, necessary element is

A)

Ca

B)

B

C)

Mg

D)

Mo

View Answer
194) The     organelle     associated     with photorespiration is

A)

lysosome

B)

peroxisome

C)

glyoxysome

D)

spherosome

View Answer
195) The mutagenic agent among following is

A)

ethyl methane

B)

ethylene

C)

2, 4-D

D)

IAA

View Answer
196) The number of bases per helical turn in ZDNA is

A)

10

B)

11

C)

12

D)

13

View Answer
197) Ribosomal RNA (rRNA) is synthesized in

A)

nucleolus

B)

nucleosome

C)

cytoplasm

D)

ribosome

View Answer
198) Green-house effect with respect to global climate refers to

A)

cooling and moist condition

B)

warming effect

C)

increase rainfall and greenery

D)

desertification

View Answer
199) In India, tropical rain forest occur in

A)

Jamrnu and Kashinir

B)

Andaman

C)

UttarPradesh

D)

Himachal Pradesh

View Answer
200) Plant length is increased by

A)

apical meristem

B)

lateral meristem

C)

dermatogens

D)

periblem

View Answer