Solved papers for BHU PMT BHU PMT (Screening) Solved Paper-2009

BHU PMT (Screening) Solved Paper-2009 Total Questions - 200

1) In which process the\[pV\]indicator diagram is a straight line parallel to volume axis

A)

isothermal

B)

isobaric

C)

irreversible

D)

adiabatic

View Answer
2) A body executes simple harmonic motion under the action of force\[{{F}_{1}}\]with a time period 4/5 s. If the force is changed to\[{{F}_{2}}\]it executes simple harmonic motion with time period 3/5 s. If both forces\[{{F}_{1}}\]and\[{{F}_{2}}\]act simultaneously in the same direction on the body, its time period will be

A)

\[\frac{12}{25}s\]

B)

\[\frac{24}{25}s\]

C)

\[\frac{35}{24}s\]

D)

\[\frac{15}{12}s\]

View Answer
3) A diatomic gas is heated at constant pressure. What fraction of the heat energy is used to increase the internal energy?

A)

\[\frac{3}{5}\]

B)

\[\frac{3}{7}\]

C)

\[\frac{5}{7}\]

D)

\[\frac{5}{9}\]

View Answer
4) In interference pattern, the energy is

A)

created at the maximum

B)

destroyed at the minimum

C)

conserved but redistributed

D)

All of the above

View Answer
5) A red flower kept in green light will appear

A)

red

B)

yellow

C)

black

D)

white

View Answer
6) A band playing music at a frequency/ is moving towards a wall at a speed\[{{v}_{b}}\]. A motorist is following the band with a speed\[{{v}_{m}}\]. If v be the speed of the sound, the expression for beat frequency heard by motorist is

A)

\[\frac{v+{{v}_{m}}}{v+{{v}_{b}}}f\]

B)

\[\frac{v+{{v}_{m}}}{v-{{v}_{b}}}f\]

C)

\[\frac{2{{v}_{b}}(v+{{v}_{m}})}{{{v}^{2}}-v_{b}^{2}}f\]

D)

\[\frac{2{{v}_{m}}(v+{{v}_{b}})}{{{v}^{2}}-v_{m}^{2}}f\]

View Answer
7) An eye specialist prescribes spectacles having a combination of a convex lens of focal length 40 cm in contact with a concave lens of focal length 25 cm. The power of this lens combination will be

A)

\[+1.5\text{ }D\]

B)

\[-1.5\text{ }D\]

C)

\[+6.67\text{ }D\]

D)

\[-6.67D\]

View Answer
8) When light wave suffers reflection at the interface between air and glass, the change of phase of reflected wave is equal to

A)

zero

B)

n/2

C)

n

D)

2n

View Answer
9) A lens behaves as a converging lens in air and diverging lens in water. The refractive index of the material of the lens is

A)

equal to that of water

B)

less than that of water

C)

greater than that of water

D)

Nothing can be predicted

View Answer
10) The work function of a substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately

A)

540 nm

B)

400 nm

C)

310 nm

D)

220 nm

View Answer
11) The electron emitted in beta radiation originates from

A)

inner orbits of atoms

B)

free electron existing in nuclei

C)

decay of neutron in the nucleus

D)

photon escaping from the nucleus

View Answer
12) If elements with principal quantum number \[n>4\]were not allowed in nature, then the number of possible elements would be

A)

32

B)

60

C)

18

D)

4

View Answer
13) The magnifying power of telescope is high if

A)

both objective and eye-piece have short focal length

B)

both objective and eye-piece have long focal length

C)

c) the objective has a long focal length and the eye-piece has a short focal length

D)

the objective has a short focal length and the eye piece has a long focal length

View Answer
14) What is the current through an ideal pn-junction diode shown in figure below?

A)

Zero

B)

10mA

C)

20mA

D)

50mA

View Answer
15) The output form of a full wave rectifier is

A)

an AC voltage

B)

a DC voltage

C)

zero

D)

a pulsating unidirectional voltage

View Answer
16) Suitable impurities are added to a semiconductor depending on its use. This is done to

A)

increase its life

B)

enable it to withstand high voltage

C)

c) increase its electrical conductivity

D)

increase its electrical resistivity

View Answer
17) Absorption of X-rays is maximum in which of the following material sheets of same thickness?

A)

Cu

B)

Au

C)

Be

D)

\[Pb\]

View Answer
18) Lenz's law is a consequence of the law of conservation of

A)

charge

B)

mass

C)

momentum

D)

energy

View Answer
19) A magnetic needle is kept in a non-uniform magnetic field. It experience

A)

a force only but not a torque

B)

a force and torque both

C)

a torque only but not a force

D)

neither a torque nor a force

View Answer
20) The magnitude of magnetic induction for a current carrying toroid of uniform cross-section is

A)

uniform over the whole cross-section

B)

maximum on the outer edge

C)

maximum on the inner edge

D)

maximum at the centre of cross-section

View Answer
21) Isogonic lines are those for which

A)

declination is the same at all places on the line

B)

angle of dip is the same at the place on the line

C)

the value of horizontal component of earth's magnetic field is the same

D)

All of the above

View Answer
22) An electric current passes through a long straight wire. At a distance 5 cm from the wire, the magnetic field is B. The field at 20 cm from the wire would be

A)

2B

B)

B/4

C)

B/2

D)

B

View Answer
23) An ammeter and a voltmeter of resistance R are connected in series to an electric cell of negligible internal resistance. Their readings are A and V respectively. If another resistance R is connected in parallel with the voltmeter, then

A)

both A and V will increase

B)

both A and V will decrease

C)

A will decrease and V will increase

D)

A will increase and V will decrease

View Answer
24) The core of transformer is laminated to reduce the effect of

A)

copper losses

B)

flux leakage

C)

hysteresis loss

D)

eddy current

View Answer
25) The average power dissipation in pure inductance is

A)

\[\frac{1}{2}L{{I}^{2}}\]

B)

\[2L{{I}^{2}}\]

C)

\[\frac{1}{4}L{{I}^{2}}\]

D)

zero

View Answer
26) The charge given to any conductor resides on its outer surface, because

A)

the free charge tends to be in its minimum potential energy state

B)

the free charge tends to be in its minimum kinetic energy state

C)

the free charge tends to be in its maximum potential energy state

D)

the free charge tends to be in its maximum kinetic energy state

View Answer
27) \[n\]identical mercury droplets charged to the same potential V coalesce to form a single bigger drop. The potential of new drop will be

A)

\[\frac{V}{n}\]

B)

\[nV\]

C)

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

D)

\[{{n}^{2/3}}V\]

View Answer
28) For protecting sensitive equipment from external magnetic field, it should be

A)

wrapped with insulation around it when passing current through it

B)

placed inside an iron can

C)

surrounded with Cu sheet

D)

placed inside aluminium can

View Answer
29) The potential difference across the terminals of a battery is 50 V when 11A current is drawn and 60 V when 1 A current is drawn. The emf and the internal resistance of the battery are

A)

\[62\text{ }V,\text{ }2\,\Omega \]

B)

\[63\text{ }V,\text{1}\,\Omega \]

C)

\[61\text{ }V,\text{ 1}\,\Omega \]

D)

\[64\text{ }V,2\,\Omega \]

View Answer
30) Four resistances\[10\,\Omega ,5\Omega ,7\Omega \]and\[3\,\Omega \]are connected so that they form the sides of a rectangle AB, BC, CD, and DA respectively. Another resistance of 10 0 is connected across the diagonal AC. The equivalent resistance between A and B is

A)

\[2\,\Omega \]

B)

\[5\,\Omega \]

C)

\[7\,\Omega \]

D)

\[10\,\Omega \]

View Answer
31) The potential energy of a charged parallel plate capacitor is\[{{U}_{0}}\]. If a slab of dielectric constant K is inserted between the plates, then the new potential energy will be

A)

\[\frac{{{U}_{0}}}{K}\]

B)

\[{{U}_{0}}{{K}^{2}}\]

C)

\[\frac{{{U}_{0}}}{{{K}^{2}}}\]

D)

\[U_{0}^{2}\]

View Answer
32) Two similar heater coils separately take 10 min to boil a certain amount of water. If both coils are connected in series, time taken to boil the same amount of water will be

A)

15 min

B)

20 min

C)

7.5 min

D)

25 min

View Answer
33) Same current is being passed through a copper voltameter and a silver voltameter. The rate of increase in weights of the cathode of the two voltameters will be proportional to

A)

atomic masses

B)

atomic number

C)

relative densities

D)

None of these

View Answer
34) Two equal and opposite charge (+ q and - q) are situated at x distance from each other, the value of potential at very far point will depend upon

A)

only on q

B)

only on \[x\]

C)

on\[qx\]

D)

on \[\frac{q}{x}\]

View Answer
35) In a potentiometer of one metre length, an unknown emf voltage source is balanced at 60 cm length of potentiometer wire, while a 3 V battery is balanced at 45 cm length. Then the emf of the unknown voltage source is

A)

3V

B)

2.25V

C)

4V

D)

4.5V

View Answer
36) A car travelling on a straight path moves with uniform velocity\[{{v}_{1}}\]for some time and with velocity\[{{v}_{2}}\]for next equal time, the average velocity is given by

A)

\[\sqrt{{{v}_{1}}{{v}_{2}}}\]

B)

\[\left( \frac{{{v}_{1}}+{{v}_{2}}}{2} \right)\]

C)

\[{{\left( \frac{1}{{{v}_{1}}}+\frac{1}{{{v}_{2}}} \right)}^{-1}}\]

D)

\[2{{\left( \frac{1}{{{v}_{1}}}+\frac{1}{{{v}_{2}}} \right)}^{-1}}\]

View Answer
37) A particle of mass m moves in a circular path radius r under the action of a force\[\frac{m{{v}^{2}}}{r}\]. The work done during its motion over half of the circumference of the circular path will be

A)

\[\left( \frac{m{{v}^{2}}}{r} \right)\times 2\pi r\]

B)

\[\left( \frac{m{{v}^{2}}}{r} \right)\times \pi r\]

C)

\[\frac{(2\pi r)}{\left( \frac{m{{v}^{2}}}{r} \right)}\]

D)

zero

View Answer
38) Dimensions of self inductance are

A)

\[[ML{{T}^{-2}}{{A}^{-3}}]\]

B)

\[[M{{L}^{-2}}{{T}^{-1}}{{A}^{-2}}]\]

C)

\[[M{{L}^{-2}}{{T}^{-2}}{{A}^{-2}}]\]

D)

\[[M{{L}^{2}}{{T}^{-2}}{{A}^{-1}}]\]

View Answer
39) A car of mass m is moving with momentum p. If\[\mu \]be the coefficient of friction between the tyres and the road, what will be stopping distance due to friction alone?

A)

\[\frac{{{p}^{2}}}{2\mu g}\]

B)

\[\frac{{{p}^{2}}}{2m\mu g}\]

C)

\[\frac{{{p}^{2}}}{2{{m}^{2}}\mu g}\]

D)

\[\frac{{{p}^{2}}}{2mg}\]

View Answer
40) A neutron is moving with velocity u. It collides head on and elastically with an atom of mass number A. If the initial kinetic energy of the neutron be E, how much kinetic energy will be retained by the neutron after collision?

A)

\[{{\left( \frac{A}{A+1} \right)}^{2}}E\]

B)

\[\frac{A}{{{(A+1)}^{2}}}E\]

C)

\[{{\left( \frac{A-1}{A+1} \right)}^{2}}E\]

D)

\[\frac{A-1}{{{(A+1)}^{2}}}E\]

View Answer
41) If the momentum of a particle is increased by 20%, then its kinetic energy increases by

A)

44%

B)

66%

C)

80%

D)

30%

View Answer
42) Three point masses, each of mass M are placed at the comers of an equilateral triangle of side L. The moment of inertia of this system about an axis along one side of the triangle is

A)

\[\frac{1}{3}M{{L}^{2}}\]

B)

\[\frac{3}{2}M{{L}^{2}}\]

C)

\[\frac{3}{4}M{{L}^{2}}\]

D)

\[M{{L}^{2}}\]

View Answer
43) A thin circular ring of mass M and radius R is rotating about its axis with a constant angular velocity\[\omega \]. Two objects, each of mass m, are connected gently to the ring. The ring now rotates with an angular velocity

A)

\[\frac{\omega M}{M+m}\]

B)

\[\frac{\omega (M-2M)}{(M+2m)}\]

C)

\[\frac{\omega (M+2M)}{M}\]

D)

\[\frac{\omega M}{M+2m}\]

View Answer
44) A satellite of mass m is moving in a circular orbit of radius R above the surface of a planet of mass M and radius R. The amount of work done to shift the satellite to higher orbit of radius 2R is

A)

\[mgR\]

B)

\[\frac{mgR}{6}\]

C)

\[\frac{mMgR}{(M+m)}\]

D)

\[\frac{mMgR}{6(M+m)}\]

View Answer
45) In a gravitational force field a particle is taken from A to B along different paths as shown in figure. Then

A)

work done along path I will be maximum

B)

work done along path III will be maximum

C)

work done along path IV will be maximum

D)

work done along all the paths will be the same

View Answer
46) A wire of length L and area of cross-section A is made of material of Young's modulus Y. If the wire is stretched by the amount\[x,\]the work done is

A)

\[\frac{YA{{x}^{2}}}{2L}\]

B)

\[YA{{x}^{2}}L\]

C)

\[\frac{YAx}{2L}\]

D)

\[\frac{YA{{x}^{2}}}{L}\]

View Answer
47) The potential energy of a molecule increases when it is brought to the surface from the interior of a liquid because

A)

at the free liquid surface gravitational potential energy is more

B)

work has to be done to move a molecule to the surface against the repulsive

C)

component of the inter molecular forces work has to be done to move a molecule to the surface against the attraction from other molecules

D)

the temperature of the liquid surface is always more than that of the interior of the liquid

View Answer
48) When a van der Waals' gas undergoes free expansion then its temperature

A)

decreases

B)

increases

C)

does not change

D)

depends upon the nature of the gas

View Answer
49) A cylinder of radius r and of thermal conductivity\[{{K}_{1}}\]is surrounded by a cylindrical shell of inner radius r and outer radius 2 r made of a material of thermal conductivity\[{{K}_{2}}\] The effective thermal conductivity of the system is

A)

\[\frac{1}{3}({{K}_{1}}+2{{K}_{2}})\]

B)

\[\frac{1}{2}(2{{K}_{1}}+3{{K}_{2}})\]

C)

\[\frac{1}{4}(3{{K}_{2}}+2{{K}_{1}})\]

D)

\[\frac{1}{4}({{K}_{1}}+3{{K}_{2}})\]

View Answer
50) The tungsten filament of an electric lamp has a surface area A and a power rating P. If the emissivity of the filament is\[\varepsilon \]and\[\sigma \]is Stefan's constant, the steady temperature of the tungsten will be

A)

\[T={{\left( \frac{P}{A\varepsilon \sigma } \right)}^{4}}\]

B)

\[T=\left( \frac{P}{A\varepsilon \sigma } \right)\]

C)

  \[T={{\left( \frac{A\varepsilon \sigma }{P} \right)}^{\frac{1}{4}}}\]

D)

  \[T={{\left( \frac{P}{A\varepsilon \sigma } \right)}^{\frac{1}{4}}}\]

View Answer
51) Glauber's salt is

A)

\[N{{a}_{2}}S{{O}_{4}}.10{{H}_{2}}O\]

B)

\[N{{a}_{2}}{{S}_{2}}{{O}_{3}}.5{{H}_{2}}O\]

C)

\[CuS{{O}_{4}}.5{{H}_{2}}O\]

D)

\[N{{a}_{2}}{{B}_{4}}{{O}_{7}}.10{{H}_{2}}O\]

View Answer
52) The most basic element is

A)

fluorine

B)

iodine

C)

chlorine

D)

bromine

View Answer
53) Ammonia is a Lewis base and it forms complexes with many cations. Which one of the following cations does not form a complex with ammonia?

A)

\[A{{g}^{+}}\]

B)

\[C{{u}^{2+}}\]

C)

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

D)

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

View Answer
54) Which of the following substances consists of only one element?

A)

Marble

B)

Sand

C)

Diamond

D)

Glass

View Answer
55) Which one of the following cations gives a brick red flame by flame test?

A)

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

B)

\[S{{r}^{2+}}\]

C)

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

D)

\[Z{{n}^{2+}}\]

View Answer
56) For which element of first transition series, the oxidation potential value\[(M\to {{M}^{2+}}+2{{e}^{-}})\]is lowest?

A)

\[Mn\]

B)

\[Fe\]

C)

\[Ni\]

D)

\[Cu\]

View Answer
57) A compound of zinc which is white in cold state and yellow in hot state, is

A)

\[ZnS\]

B)

\[ZnO\]

C)

\[ZnC{{l}_{2}}\]

D)

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

View Answer
58) The isomer Is

A)

dextro isomer

B)

laevo isomer

C)

cis-isomer

D)

trans-isomer

View Answer
59) The compound which does not show paramagnetism, is

A)

\[[Cu{{(N{{H}_{3}})}_{4}}]C{{l}_{2}}\]

B)

\[[Ag{{(N{{H}_{3}})}_{2}}]Cl\]

C)

\[NO\]

D)

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

View Answer
60) The equivalent weight of potassium permanganate\[(KMn{{O}_{4}})\]in neutral medium will be equal to

A)

molecular weight

B)

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

C)

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

D)

\[\frac{molecular\text{ }weight}{5}\]

View Answer
61) An element forms a solid oxide which when dissolved in water, forms an acidic solution. The element is

A)

neon

B)

sodium

C)

phosphorus

D)

sulphur

View Answer
62) What is the product obtained when\[MnS{{O}_{4}}\]in solution is boiled with\[Pb{{O}_{2}}\]and concentrated\[HN{{O}_{3}}\]?

A)

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

B)

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

C)

\[M{{n}_{3}}{{O}_{4}}\]

D)

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

View Answer
63) Lead nitrate on heating gives lead oxide, nitrogen dioxide and oxygen. This reaction is known as

A)

combustion

B)

combination

C)

displacement

D)

decomposition

View Answer
64) The number of d-electrons in\[{{[Cr{{({{H}_{2}}O)}_{4}}]}^{3+}}\]is

A)

2

B)

3

C)

4

D)

5

View Answer
65) Coordination number for copper (Cu) is

A)

1

B)

6

C)

8

D)

12

View Answer
66) Silver nitrate on heating gives

A)

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

B)

\[AgO,NO\]and\[{{O}_{2}}\]

C)

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

D)

\[Ag,N{{O}_{2}}\]and\[{{O}_{2}}\]

View Answer
67) Which one of the following is an example of a true peroxide?

A)

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

B)

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

C)

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

D)

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

View Answer
68) The molarity of 98%\[{{H}_{2}}S{{O}_{4}}(d=1.8\text{ }g/mL)\]by weight, is

A)

6 M

B)

18 M

C)

10 M

D)

4 M

View Answer
69) 20 mL of\[10\text{ }N\text{ }HCl\]are mixed with 10 mL of 36 N\[{{H}_{2}}S{{O}_{4}}\]and the mixture is made 1 L. Normality of the mixture will be

A)

0.56 N

B)

0.50 N

C)

0.40 N

D)

0.35 N

View Answer
70) The energy of an electron in the 3rd orbit of an atom is\[-E\]. The energy of an electron in the first orbit will be

A)

\[-3E\]

B)

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

C)

\[-\frac{E}{9}\]

D)

\[-9E\]

View Answer
71) Which emits\[\beta -\] pardcles?

A)

\[_{1}^{3}H\]

B)

\[_{6}^{14}C\]

C)

\[_{19}^{40}K\]

D)

All of these

View Answer
72) What is X in the nuclear reaction \[_{7}^{14}N+_{1}^{1}H\xrightarrow{{}}_{8}^{15}O+X?\]

A)

\[_{1}^{1}H\]

B)

\[_{0}^{1}n\]

C)

\[\gamma \]

D)

\[_{-1}^{0}e\]

View Answer
73) Which of the following is related with the colloidal solution?

A)

Tyndall effect

B)

Fajan's rule

C)

Le-Chateliefs principle

D)

Aufbau principle

View Answer
74) Who discovered that cathode rays are made up of electrons?

A)

William Crookes

B)

G.J. Stoney

C)

R. A. Millikan

D)

J. J. Thomson

View Answer
75) For the chemical reaction\[A\xrightarrow[{}]{{}}E,\], it is found that the rate of the reaction doubles when the concentration of A is increased four times. The order in terms of A for this reaction is

A)

two

B)

one

C)

zero

D)

half

View Answer
76) One mole of\[{{N}_{2}}{{O}_{4}}\]is heated in a flask with a volume of\[10\text{ }d{{m}^{3}}\]. At equilibrium 1.708 mole of\[N{{O}^{2}}\]and 0.146 mole of\[{{N}_{2}}{{O}_{4}}\]were found at\[134{}^\circ C\]. The equilibrium constant will be

A)

\[250\,mol\,d{{m}^{-3}}\]

B)

\[300\,mol\,d{{m}^{-3}}\]

C)

\[200\,mol\,d{{m}^{-3}}\]

D)

\[230\,mol\,d{{m}^{-3}}\]

E)

none of the above

View Answer
77) Which one of the following is paramagnetic?

A)

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

B)

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

C)

\[He\]

D)

\[N{{H}_{3}}\]

View Answer
78) The compound which is non-linear

A)

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

B)

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

C)

\[HgC{{l}_{2}}\]

D)

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

View Answer
79) The valency of the element having atomic number 9 is

A)

1

B)

2

C)

3

D)

4

View Answer
80) From the knowledge of the position of radium in the Periodic Table, which of the following statements would you expect to be false?

A)

\[RaS{{O}_{4}}\]is insoluble in water

B)

\[RaS{{O}_{4}}\] is insoluble in\[HN{{O}_{3}}\]

C)

\[RaS{{O}_{4}}\]is a white solid

D)

\[RaS{{O}_{4}}\]is a colour less liquid

View Answer
81) Hexa-2-ene-4-yne is

A)

\[C{{H}_{3}}C{{H}_{2}}C=CCH=C{{H}_{2}}\]

B)

\[C{{H}_{3}}-C=CCH=CHC{{H}_{3}}\]

C)

\[C{{H}_{3}}C{{H}_{2}}CH=CHC=CH\]

D)

\[C{{H}_{3}}C=CC{{H}_{2}}CH=C{{H}_{2}}\]

View Answer
82) The number of unpaired electrons in carbon atom is

A)

one

B)

two

C)

three

D)

four

View Answer
83) The end product of 4n series is

A)

\[_{82}^{208}Pb\]

B)

\[_{82}^{207}Pb\]

C)

\[_{82}^{209}Pb\]

D)

None of these

View Answer
84) Which statement is correct?

A)

Ethanol is more acidic than phenol

B)

Phenol is more acidic than ethanol

C)

Phenol is more acidic than benzoic acid

D)

Acidity of phenol and benzoic acid is about equal

View Answer
85) Which chloride is least reactive with the hydrolysis point of view?

A)

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

B)

\[C{{H}_{3}}C{{H}_{2}}Cl\]

C)

\[{{(C{{H}_{3}})}_{3}}CCl\]

D)

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

View Answer
86) The reaction of acetone with\[PC{{l}_{5}}\]gives

A)

\[C{{H}_{3}}COC{{H}_{2}}Cl\]

B)

\[C{{H}_{3}}COCHC{{l}_{2}}\]

C)

D)

\[ClC{{H}_{2}}COC{{H}_{2}}Cl\]

View Answer
87) Towards electrophilic reagents

A)

ethene is more reactive than ethyne

B)

ethene is less reactive than ethyne

C)

both have equal reactivity

D)

the reactivity of both cannot be predicted

View Answer
88) On heating a mixture of sodium benzoate and sodalime...... is formed.

A)

toluene

B)

phenol

C)

benzene

D)

benzoic acid

View Answer
89) In the following reaction, \[2C{{H}_{2}}=C{{H}_{2}}+{{S}_{2}}C{{l}_{2}}\to Product\] The product is

A)

mustard gas

B)

lewisite

C)

polythene

D)

Teflon

View Answer
90) What is the initial product of the acidic hydrolysis of a cyanide?

A)

A primary amide

B)

Anisocyanide

C)

An isocyanate

D)

A nitrile

View Answer
91) In the preparation of nylon-6 from cyclohexanone oxime, use is made of a rearrangement reaction. This rearrangement reaction is called

A)

Wolff rearrangement

B)

Amadori rearrangement

C)

Curtius rearrangement

D)

Beckmann rearrangement

View Answer
92) In the reaction, \[C{{l}_{2}}+C{{H}_{4}}\xrightarrow[{}]{hv}C{{H}_{3}}Cl+HCl\] presence of a small amount of oxygen

A)

increases the rate of reaction for a brief period of time

B)

decreases the rate of reaction for a brief period of time

C)

does not affect the rate of reaction

D)

completely stops the reaction

View Answer
93) An example of a lipid is

A)

lard

B)

keratin

C)

glutathione

D)

oxytocin

View Answer
94) Which of the following reagents can be used for distinguishing the three classes of alcohols?

A)

Fenton's reagent

B)

Lucas reagent

C)

Schiff?s reagent

D)

Tollen?s reagent

View Answer
95) Natural rubber is

A)

a polymer of 1, 3-butadiene

B)

a polymer of ethylene

C)

a polymer of 2-methyl-l, 3-butadiene

D)

a polymer of styrene

View Answer
96) Test for an ester is

A)

Biurettest

B)

Hydroxamic acid test

C)

Mullicken test

D)

Liebermann nitroso test

View Answer
97) Number of resonating structures for Dewa?s benzene will be

A)

one

B)

two

C)

three

D)

four

View Answer
98) Which of the following reactions can be used for the synthesis of an alkene?

A)

Chugaev reaction

B)

Dakin reaction

C)

Reimer-Tiemann reaction

D)

Wurtz-Fittig reaction

View Answer
99) The reaction,\[{{R}_{2}}C=NN{{H}_{2}}\xrightarrow[{}]{{{C}_{2}}{{H}_{5}}ONa}{{R}_{2}}C{{H}_{2}}+{{N}_{2}}\]is called

A)

Clemmensen reduction

B)

Hunsdiecker reaction

C)

Tischenko reaction

D)

Wolff-Kishner reduction

View Answer
100) The monomer of cellulose is

A)

fructose

B)

galactose

C)

glucose

D)

None of the above

View Answer
101) Which shows polymorphism?

A)

Physalia

B)

Trypanosoma

C)

Termite

D)

All of these

View Answer
102) Secondary radial symmetry is found in

A)

Cnidaria

B)

Jelly fish

C)

Echinodennata

D)

Hemichordata

View Answer
103) Basic unit of classification is

A)

genus

B)

species

C)

order

D)

class

View Answer
104) A Connecting link between Annelida and Mollusca is

A)

Peripatus

B)

Lepidosiren

C)

Neopilina

D)

Protopterus

View Answer
105) Select incorrect pair

A)

Porifera                               ? choanocytes

B)

Coelenterata                    ? nematocysts

C)

Annelida                             ? segmentation

D)

  Monera                              ? eukaryote

View Answer
106) Bilateral symmetry, metameric segmentation, coelom and open circulatory are the features of

A)

Annelids

B)

Arthropoda

C)

Mollusca

D)

Echinodermata

View Answer
107) Ancestor of man who first stood erect was

A)

Australopithecus

B)

Cro-magnon

C)

Java-ape man

D)

Peking man

View Answer
108) Core zone, buffer zone and manipulation zone are found in

A)

national park

B)

sanctuary

C)

tiger reserve

D)

biosphere reserve

View Answer
109) Which insecticide is more hazardous to human health ?

A)

Rotenone

B)

Pyrcthrum

C)

DDT

D)

Humulin

View Answer
110) Universal donor is

A)

O Rh+

B)

O Rh-

C)

AB Rh+

D)

AB Rh-

View Answer
111) One of these is not concerned with wild-life conservation

A)

\[\text{IVF}\]

B)

\[\text{IUCN}\]

C)

\[\text{WWF}\]

D)

\[\text{IBWL}\]

View Answer
112) Largest tiger population is found in

A)

Sunderban national park

B)

Corbett national park

C)

Ranthambhor national park

D)

Kanha national park

View Answer
113) Genetic material found in Human Immunodeficiency Virus (HIV) is

A)

double stranded RNA

B)

single stranded RNA

C)

double stranded DNA

D)

single stranded DNA

View Answer
114) Gigantism and acromegaly are due to

A)

hypothyroidism

B)

hype rthyroid ism

C)

hypopituitarism

D)

hyperpituitarism

View Answer
115) If a child is of O blood group and his father is of B blood group, the genotype of father is

A)

\[{{\text{I}}^{\text{o}}}\,{{\text{I}}^{\text{o}}}\]

B)

\[{{\text{I}}^{A}}\,{{\text{I}}^{B}}\]

C)

\[{{\text{I}}^{o}}\,{{\text{I}}^{B}}\]

D)

\[{{\text{I}}^{o}}\,{{\text{I}}^{A}}\]

View Answer
116) Spennatogenesis is under the regulatory in fluence of

A)

ADH

B)

FSH

C)

LH

D)

STH

View Answer
117) Which of the following can be controlled by using biopesticides?

A)

Insects

B)

Diseases

C)

Weeds

D)

All of these

View Answer
118) Which hormone is secreted in a woman if pregnancy has occurred ?

A)

Estrogen

B)

Progesterone

C)

Luteinizing hormone

D)

Chorionic gonadotropin

View Answer
119) Product of biotechnology is

A)

transgenic crops (GM crops)

B)

humulin

C)

biofertilizer

D)

All of the above

View Answer
120) Phase common in aerobic and anaerobic respiration is

A)

Krebs cycle

B)

glycolysis

C)

glycogenolysis

D)

ETS

View Answer
121) Oxyntic cells secrete

A)

\[\text{HCl}\]

B)

trypsin

C)

Na OH

D)

pepsinogen

View Answer
122) Menstruation is due to sudden

A)

reduction of FSH

B)

increase of LH

C)

reduction in estrogen and progesterone

D)

None of the above

View Answer
123) Correctly matched set of phylum, class and example is

A)

Protozoa?Mastigophora?Entamoeba

B)

Mollusca?Bivalvia?Pinctata

C)

Arthropoda?Diplopoda?Swiopendra

D)

Chordata?Cyclosromata?Phrynosoma

View Answer
124) Urea synthesis occurs in

A)

kidney

B)

liver

C)

brain

D)

muscles

View Answer
125) Which is common to kidney and skeleton in mammals ?

A)

Cortex

B)

Medulla

C)

Pelvis

D)

Radius

View Answer
126) Which is regarded as urinary bladder of embryo?

A)

Amnion

B)

Allantois

C)

Chorion

D)

Yolk sac

View Answer
127) Deficiency of vitamin B12 causes

A)

cheilosis

B)

thalassemia

C)

beri-beri

D)

pernicious anaemia

View Answer
128) Blood is a kind of

A)

areolar tissue

B)

connective tissue

C)

fluid connective tissue

D)

reticular connective tissue

View Answer
129) Which of these is used to control human population?

A)

Estrogen + progesterone

B)

\[\text{IUCD}\] and \[\text{MTP}\]

C)

Tubectomy and vasectomy

D)

All of the above

View Answer
130) Addiction to alcohol causes

A)

cirrhosis

B)

epilepsy

C)

neurosis

D)

psychosis

View Answer
131) The most primitive vertebrates are

A)

ostracoderms

B)

cephalochordates

C)

placoderms

D)

cyclostomes

View Answer
132) Change in the number of body parts is called

A)

continuous variation

B)

discontinuous variation

C)

meristic variation

D)

substantive variation

View Answer
133) Which has an additional \[\text{X}\] chromosome ?

A)

Turner's syndrome

B)

Klinefeker's syndrome

C)

Super female

D)

Down's syndrome

View Answer
134) Origin of life occurred in

A)

Precambrian

B)

Coenozoic

C)

Palaeozoic

D)

Mesozoic

View Answer
135) Branch of zoology dealing with the study of fishes is called

A)

Arthrology

B)

Ichthyology

C)

Saurology

D)

Herpetology

View Answer
136) Theory of continuity of germplasm was     propounded by

A)

Mendel

B)

Lamarck

C)

Weismann

D)

Haeckel

View Answer
137) Who discovered oocysts m the stomach of female Anopheles ?

A)

Ronald Ross

B)

Charles Lavern

C)

Golgi

D)

Lamble

View Answer
138) Epimysium, perimysium and endomysium are found in

A)

nerve

B)

blood vessel

C)

striated muscle

D)

uterus

View Answer
139) Endothelium is made up of

A)

squamous cells

B)

cuboidal cells

C)

columnar cells

D)

stratified epithelium

View Answer
140) Bipolar neurons occur in

A)

vertebrate embryos

B)

retina of eye

C)

brain and spinal cord

D)

skeletal muscles

View Answer
141) Glisson's capsules are found, in which organ of mammals?

A)

Stomach

B)

Kidney

C)

Tesris

D)

liver

View Answer
142) Production of glucose from amino acids, fatty acids and glycerol is called

A)

glycogenesis

B)

gluconeogenesis

C)

glycogenolysis

D)

glycolysis

View Answer
143) Which is called Hamburger shift?

A)

Hydrogen shift

B)

Bicarbonate shift

C)

Chloride shift

D)

Sodium shift

View Answer
144) Papillary muscles are found in mammalian

A)

auricles

B)

ventricles

C)

pinna

D)

eyes

View Answer
145) Which foramen is paired in mammalian brain?

A)

Foramen of Luschka

B)

Foramen of Magendie

C)

Foramen of Monro

D)

Inter-ventricular foramen

View Answer
146) Corpus luteum produces

A)

progesterone

B)

estrogen

C)

luteotropin hormone

D)

luteinizing hormone

View Answer
147) Axis vertebra is identified by

A)

sigmoid notch

B)

deltoid ridge

C)

odontoid process

D)

centrum

View Answer
148) Which is thickened to form organ of Cora?

A)

Reissner's membrane

B)

Basilar membrane

C)

Tectorial membrane

D)

All of the above

View Answer
149) Which stage of silkworm secretes silk?

A)

Adult

B)

Larva

C)

Cocoon

D)

Pupa

View Answer
150) Real product of apiculture is

A)

honey

B)

bee wax

C)

Both Ca) and

D)

None of the above

View Answer
151) Who coined the term 'gene??

A)

Johanssen

B)

Watson

C)

Morgan

D)

Williamson

View Answer
152) Protein coat of a virus enclosing nucleic acid is called

A)

plasmid

B)

capsid

C)

vector

D)

genome

View Answer
153) Highest number of antibiotics are produced by

A)

Bacillus

B)

Penicillium

C)

Streptomyces

D)

Cephalosporium

View Answer
154) Which of the following is stained using carmine?

A)

Bacteria

B)

Diatoms

C)

Chromosomes

D)

Viruses

View Answer
155) A mature pollen grain of Pinus has

A)

2 cells

B)

3 cells

C)

4 cells

D)

5 cells

View Answer
156) Polyploidy can be induced by the application of

A)

auxin

B)

kinetin

C)

colchicine

D)

ethylene

View Answer
157) Quantasomes are present in

A)

chloroplast

B)

mitochondria

C)

Golgi body

D)

lysosome

View Answer
158) In mitochondria, enzyme cytochrome oxidase is present in

A)

outer membrane

B)

perimitochondrial space

C)

inner membrane

D)

matrix

View Answer
159) Which of the following bio-engineered bacteria is utilized for cleaning of marine oil slicks?

A)

Escherichia coli

B)

Pseudomonas syringae

C)

Pseudomonas putida

D)

Rhizoctonia solani

View Answer
160) Green potatoes are toxic due to

A)

phytoalexins

B)

solanin

C)

triazine

D)

hormones

View Answer
161) Cells obtained from cancerous tumours are known as

A)

hybridomas

B)

myelomas

C)

lymphocytes

D)

monoclonal cells

View Answer
162) The plant of Triricum aestivum is

A)

haploid

B)

diploid

C)

tetraploid

D)

hexaploid

View Answer
163) Which of the following is a total root parasite?

A)

Cuscuca

B)

Rafflesia

C)

Santalum

D)

Afonocrapa

View Answer
164) Which of the following tissues consist of living cells?

A)

Vessels

B)

Tracheids

C)

Companion cell

D)

Sclerenchyma

View Answer
165) Which is a useful product of epidermal origin?

A)

Saffron

B)

Cotton fibres

C)

Clove

D)

Jute

View Answer
166) Fern spores are usually

A)

haploid

B)

diploid

C)

triploid

D)

tetraploid

View Answer
167) When pollen tube enters through micropyle, the process is called

A)

porogamy

B)

chalazogamy

C)

mesogamy

D)

apogamy

View Answer
168) Outer wall of pollen grain is made up of

A)

cellulose

B)

sporopollenin

C)

peclocellulose

D)

lignin

View Answer
169) Nucleotides are formed by

A)

purine, sugar and phosphate

B)

purine, pyrimidine and phosphate

C)

purine, pyrimidine, sugar and phosphate

D)

pyrimidine, sugar and phosphate

View Answer
170) DNA replication occurs in

A)

\[{{\text{G}}_{\text{1}}}\text{-}\]phase

B)

S-phase

C)

\[{{\text{G}}_{\text{2}}}\text{-}\]phase

D)

M-phase

View Answer
171) Which of the following plant cells is not surrounded by a cell wall?

A)

Root hair cell

B)

Stem hair cell

C)

Gamete cell

D)

Bacterial cell

View Answer
172) Which of the following cell organelles stores hydrolytic enzymes?

A)

Centriole

B)

Lysosome

C)

Chromoplast

D)

Chloroplast

View Answer
173) A monocarpic plant is one, which:

A)

has only one carpel

B)

flowers once in a life-time

C)

produces only one seed

D)

produces only one fruit

View Answer
174) AIDS virus contains

A)

RNA with protein

B)

DNA with protein

C)

DNA without protein

D)

DNA only

View Answer
175) Calyptra develops from

A)

venter wall of archegonium

B)

outgrowth of gametophyte

C)

neck wall of archegonium

D)

paraphysis of the archegonial branch

View Answer
176) Protonema is the stage in the life-cycle of

A)

Cycas

B)

Funaria

C)

Selaginella

D)

Mucor

View Answer
177) A fem differs from a moss in having

A)

swimming archegonia

B)

swimming antherozoids

C)

independent gametophytes

D)

independent sporophytes

View Answer
178) Female cone of pinus is a

A)

modified needles

B)

modified long shoot

C)

modified dwarf shoot

D)

modified scale

View Answer
179) Development of an embryo without fertilization is called as

A)

apomixis

B)

polyembryony

C)

parthenocarpy

D)

parthenogenesis

View Answer
180) Which of the following floras parts forms pericarp after fertilization?

A)

Nucellus

B)

Outer integument

C)

Ovary wall

D)

Inner integument

View Answer
181) Prothallus of the fem produces

A)

spores

B)

gametes

C)

Both and

D)

cones

View Answer
182) Which of the following cell organdies is associated with phocorespiration?

A)

Mitochondria

B)

Peroxysome

C)

Chloroplast

D)

All of these

View Answer
183) The thickness of unit membrane is

A)

20Å

B)

35Å

C)

55Å

D)

75Å

View Answer
184) Chromosomes are arranged along the equator during

A)

prophase

B)

metaphase

C)

anaphase

D)

telophase

View Answer
185) Width of the DNA molecule is

A)

15 Å

B)

20 Å

C)

25 Å

D)

34 Å

View Answer
186) In gymnosperms, the ovule is naked because

A)

ovary wall is absent

B)

integuments are absent

C)

perianth is absent

D)

nucellus is absent

View Answer
187) In Funaria capsule, dispersal of spores takes place through

A)

peristomial teeth

B)

annulus

C)

calyptra

D)

operculum

View Answer
188) Crossing over occurs during

A)

leptotene

B)

diplotene

C)

pachytene

D)

zygotene

View Answer
189) Genes are made up of

A)

histones

B)

hydrocarbons

C)

polynucleotides

D)

lipoproteins

View Answer
190) The site of photosynthesis in blue-green algae is

A)

chromatophores

B)

mitochondria

C)

chloroplast

D)

root hair

View Answer
191) Viral infection is usually absent in

A)

phloem cells

B)

xylem cells

C)

pith cells

D)

apical meristem

View Answer
192) Clamp connections are found in

A)

Phycomycetes

B)

Ascomycetes

C)

Basidiomyceies

D)

Deuteromycetes

View Answer
193) Which of the following characters is related with telophase?

A)

Formation of nuclear membrane

B)

Formation of nucleolus

C)

Elongation of chromosome

D)

Formation of two daughter nuclei

View Answer
194) In case of incomplete dominance, what will be the phenotypic ratio of F2 generation?

A)

3 : 1

B)

1 : 2 : 1

C)

1 :1: 1 :1

D)

2 : 2

View Answer
195) Which of the following does not contain DNA?

A)

Mitochondria

B)

Chloroplast

C)

Peroxysome

D)

Nucleus

View Answer
196) Genes exhibiting multiple effects are known as

A)

complementary genes

B)

pleiotropic genes

C)

cistrons

D)

pseudogenes

View Answer
197) Who coined the term 'cistron??

A)

Muller

B)

Benzer

C)

Khorana

D)

Sutton

View Answer
198) Which of the following is responsible for the origin of lysosome?

A)

Chloroplast

B)

Mitochondria

C)

Golgi body

D)

Ribosome

View Answer
199) In Selaginella, trabeculae are the modification of

A)

epidermal cells

B)

cortical cells

C)

endodermal cells

D)

pericycle cells

View Answer
200) Tonoplast is a membrane, which surrounds

A)

ribosome

B)

mitochondria

C)

vacuole

D)

cytoplasm

View Answer

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BHU PMT (Screening) Solved Paper-2009 Total Questions - 200