# Solved papers for Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2010

### done Chhattisgarh PMT Solved Paper-2010

• question_answer1) Two simple harmonic motions A and B are given respectively by the following equations ${{y}_{1}}=a\,\sin \,\left( \omega t+\frac{\pi }{6} \right),$ ${{y}_{2}}=a\,\sin \,\left( \omega t+\frac{3\pi }{6} \right)$ The phase difference between the waves is

A) $\frac{\pi }{2}$

B) $\frac{\pi }{6}$

C) $\frac{\pi }{3}$

D) zero

• question_answer2) A stretched string of length $l$ fixed at both ends can sustain stationary waves of wavelength $\lambda$ given by

A) $\lambda =\frac{{{n}^{2}}}{2l}$

B) $\lambda =\frac{{{l}^{2}}}{2n}$

C) $\lambda =\frac{2l}{n}$

D) $\lambda =2\ln$ (Here, n is a integer)

• question_answer3) An observer moves towards a stationary source of sound with a velocity that is one-tenth the velocity of sound. The apparent change in frequency is

A) zero

B) 5%

C) 10%

D) 0.1%

• question_answer4) Light of wavelength $7200\,\overset{\text{o}}{\mathop{\text{A}}}\,$ in air has a wavelength in glass $(\mu =1.5)$ equal to

A) $7200\,\overset{\text{o}}{\mathop{\text{A}}}\,$

B) $4800\,\overset{\text{o}}{\mathop{\text{A}}}\,$

C) $10800\,\overset{\text{o}}{\mathop{\text{A}}}\,$

D) $6000\,\overset{\text{o}}{\mathop{\text{A}}}\,$

• question_answer5) When a thin convex lens is put in contact with a thin concave lens of the same focal length $(f),$ the resultant combination has a focal length equal to

A) $\frac{f}{2}$

B) $2f$

C) 0

D) $\infty$

• question_answer6) A cylindrical lens is required to correct

A) myopia

B) presbyopia

C) hypermetropia

D) astigmatism

• question_answer7) Which of the following phenomenona is not common to sound and light waves ?

A) Interference

B) Diffraction

C) Polarisation

D) Reflection

• question_answer8) The nearer point of hypermetropic eye is 40 cm. The lens to be used for its correction should have the power

A) + 1.5 D

B) -1.5 D

C) +2.5D

D) +0.5D

• question_answer9) The work of Sir C.V. Raman for which he was awarded Nobel Prize was concerned with

A) nuclear energy

B) scattering of light

C) laser

D) transistors

• question_answer10) Young's double slit experiment is based on

A) Newton's corpuscular theory of light

B) Huygen's wave theory

C) Quantum theory

D) All of the above

• question_answer11) One kilowatt hour equals

A) $36\times {{10}^{s}}J$

B) $34\times {{10}^{s}}J$

C) $3\times {{10}^{5}}J$

D) $6\times {{10}^{s}}J$

• question_answer12) Velocity of electromagnetic waves in vacuum is given by

A) $\sqrt{{{\mu }_{0}}{{\varepsilon }_{0}}}$

B) $\frac{\sqrt{{{\mu }_{0}}}}{{{\varepsilon }_{0}}}$

C) $\frac{\sqrt{{{\varepsilon }_{0}}}}{{{\mu }_{0}}}$

D) $\frac{1}{\sqrt{{{\mu }_{0}}{{\varepsilon }_{0}}}}$

• question_answer13) Two spheres A and B of radii a and b respectively are at the same potential. The ratio of the surface charge densities of A to B is

A) $\frac{a}{b}$

B) $\frac{b}{a}$

C) $\frac{{{a}^{2}}}{{{b}^{2}}}$

D) $\frac{{{b}^{2}}}{{{a}^{2}}}$

• question_answer14) A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 V. The potential at a distance of 2 cm from the centre of sphere is

A) zero

B) 10 V

C) 4V

D) 5V

• question_answer15) The equivalent capacitance between points A and B in the given figure, is

A) $\frac{36}{13\mu F}$

B) $2\mu F$

C) $1\mu F$

D) $3\mu F$

• question_answer16) An electric bulb is rated 220 V and 100 W. Power consumed by it when operated on 110 V is

A) 50 W

B) 75 W

C) 90 W

D) 25 W

• question_answer17) The temperature coefficient of resistance of a wire is $0.00125\text{ }per\text{ }{}^\circ C$. At 300 K temperature its resistance is $1\Omega .$ The resistance of the wire will be $2\Omega$ at

A) 1154 K

B) 1100 K

C) 1400 K

D) 1127 K

• question_answer18) How much heat is produced by 1500 W heater in 7 min ?

A) 1.5 kcal

B) 15 kcal

C) 150 kcal

D) 1500 kcal

• question_answer19) Five equal resistors, each equal to r are connected as shown in the figure, then the equivalent resistance between points A and B

A) r

B) 5r

C) $\frac{r}{5}$

D) $\frac{2r}{3}$

• question_answer20) A solenoid of 1.5 m length and 4.0 cm diameter possesses 10 turns/cm. A current of 5 A is flowing through it. The magnetic induction a axis inside the solenoid is

A) $\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}}}\,\text{T}$

B) $\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-5}}}\,\text{T}$

C) $\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-3}}}\,\text{T}$

D) $\text{2}\,\text{ }\!\!\pi\!\!\text{ }\,\text{ }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-5}}}\,\text{T}$

• question_answer21) The unit of intensity of magnetisation ($I$) is

A) A/m

B) A-m2

C) A-m

D) W/m

• question_answer22) The resistance of an ideal voltmeter is

A) low

B) high

C) infinite

D) zero

• question_answer23) The inductive time constant in an electrical circuit is

A) $LR$

B) $\frac{L}{R}$

C) $\sqrt{\frac{L}{R}}$

D) $\frac{R}{L}$

• question_answer24) The relation between triode constants is

A) $\mu \times {{r}_{P}}\times {{g}_{m}}=1$

B) $\mu \frac{{{r}_{P}}}{{{g}_{m}}}$

C) $\mu \frac{{{g}_{m}}}{{{r}_{P}}}$

D) $\mu ={{r}_{P}}\times {{g}_{m}}$

• question_answer25) An n-type semiconductor is formed

A) when germanium crystal is doped with an impurity containing 3 valence electrons

B) when germanium crystal is doped with an impurity containing 5 valence electrons

C) from pure germanium

D) from pure silicon

• question_answer26) In a common base configuration; (transistor circuit) ${{I}_{E}}=1$mA, ${{I}_{c}}=$ 0.95mA. The value of base current is

A) 1.95mA

B) 0.05mA

C) 1.05mA

D) 0.95mA

• question_answer27) The work function for aluminium surface is 4.2eV. The cut-off wavelength for the photoelectric effect is

A) $2955\,\overset{\text{o}}{\mathop{\text{A}}}\,$

B) $4200\,\overset{\text{o}}{\mathop{\text{A}}}\,$

C) $2000\,\overset{\text{o}}{\mathop{\text{A}}}\,$

D) $1000\,\overset{\text{o}}{\mathop{\text{A}}}\,$

• question_answer28) X-rays are being produced in a tube operating at 105V The velocity of X-rays produced is

A) $3\times {{10}^{8}}m/s$

B) $2.8\times {{10}^{8}}m/s$

C) $3.1\times {{10}^{8}}m/s$

D) $3\times {{10}^{10}}m/s$

• question_answer29) If the potential energy of the electron in the hydrogen atom is $\frac{-K{{e}^{2}}}{r},$its Kinetic energy is

A) $\frac{-K{{e}^{2}}}{2r}$

B) $\frac{-K{{e}^{2}}}{r}$

C) $\frac{K{{e}^{2}}}{2r}$

D) $\frac{K{{e}^{2}}}{r}$

• question_answer30) The decay constant of radium is $4.28\times {{10}^{-4}}$ per $yr$Its half-life is approximately

A) $1250\,yr$

B) $1620\,yr$

C) $200\,yr$

D) $60\,yr$

• question_answer31) Dimensions of the three physical quantities in which En up are the same ?

A) Work, energy, force

B) Velocity, momentum, impulse

C) Potential energy, kinetic energy, momentum

D) Pressure, stress, coefficient of elasticity

• question_answer32) One nanometre is equal to

A) $\text{1}{{\text{0}}^{\text{9}}}\text{mm}$

B) $\text{1}{{\text{0}}^{\text{-6}}}\text{cm}$

C) $\text{1}{{\text{0}}^{\text{-7}}}\text{cm}$

D) $\text{1}{{\text{0}}^{\text{-9}}}\text{cm}$

• question_answer33) A life is going up. The variation in the speed of the lift is as given in the graph What is the height to which the lift takes the passengers ?

A) 3.6m

B) 28.8m

C) 36.0m

D) 40.0m

• question_answer34) 34. A2 kg mass is suspended using two strings AB CD as shown in figure A sudden jerk is given to the end D of the string, then

A) part AB of the string breaks

B) part CD of the string breaks

C) no part of the string breaks

D) both the strings will simultaneously break

• question_answer35) A body of mass 2 kg slides down a curved track which is quadrant of a circle of radius 1m (figure) All the surfaces are frictionless. If the body starts from rest, its speed at the bottom of the track is

A) 4.43 m/s

B) 2 m/s

C) 0.5 m/s

D) 19.6 m/s

• question_answer36) A lift moving up comes to rest with a retardation. The weight of the man in it

A) increases

B) decreases

C) remains constant

D) either increases or decreases

• question_answer37) A car of mass m is taking a circular turn of radius r on a frictional level road with a speed v. In order that the car does not skid ($\mu =$ coefficient of friction)

A) $\frac{m{{v}^{2}}}{r}\ge \mu mg$

B) $\frac{m{{v}^{2}}}{r}\le \mu mg$

C) $\frac{m{{v}^{2}}}{r}=\mu mg$

D) $\frac{v}{r}=\mu g$

• question_answer38) Moment of inertia of a rod of length$l$ about an axis passing through its edge is (mass of the rod M)

A) $\frac{M{{l}^{2}}}{12}$

B) $\frac{M{{l}^{2}}}{3}$

C) $\frac{M{{l}^{2}}}{2}$

D) $\frac{M{{l}^{2}}}{4}$

• question_answer39) Two bodies of masses ${{m}_{1}}$ and ${{m}_{2}}$ have equal momentum. Their kinetic energies ${{E}_{1}}$ and ${{E}_{2}}$ are in the ratio

A) $\sqrt{{{m}_{1}}:}\sqrt{{{m}_{2}}}$

B) ${{m}_{1}}:{{m}_{2}}$

C) ${{m}_{2}}:{{m}_{1}}$

D) $m_{1}^{2}:m_{2}^{2}$

• question_answer40) Time period of revolution of a satellite around a planet of radius R is T. The period of revolution around another planet whose radius is 3R is

A) T

B) 3T

C) 9T

D) $3\sqrt{3}T$

• question_answer41) The total energy of the body executing simple harmonic motion (SHM) is E. Then the kinetic energy when the displacement is half of the amplitude is

A) $\frac{E}{2}$

B) $\frac{E}{4}$

C) $\frac{3E}{4}$

D) $\frac{\sqrt{3E}}{4}$

• question_answer42) An ice-berg is floating in sea water. What percentage of volume of the ice-berg is above the water ? (Given : relative density of sea water 1.2 and relative density or ice = 0.9)

A) 20%

B) 25%

C) 33.3%

D) 50%

• question_answer43) A cylindrical vessel is filled with a liquid of density d upto a height h, if the vessel is at rest, then the pressure at the bottom is

A) zero

B) $\frac{h}{2}dg$

C) $hdg$

D) $2hdg$

• question_answer44) 44. A thick copper rope of density $1.5\times {{10}^{3}}kg/{{m}^{3}}$and young's modulus $5\times {{10}^{6}}N/{{m}^{2}},\text{ }8m$ in length is hung from the ceiling of a room. The increase in its length due to its own weight is

A) $\text{9}\text{.6 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-5}}}\text{m}$

B) $\text{19}\text{.6 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-7}}}\text{m}$

C) $\text{19}\text{.2 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-7}}}\text{m}$

D) $\text{9}\text{.6}\,\text{m}$

• question_answer45) The excess of pressure due to surface tension in a spherical liquid drop of radius R is proportional To

A) $R$

B) ${{R}^{3}}$

C) ${{R}^{-2}}$

D) ${{R}^{-1}}$

• question_answer46) If one mole of a monoatomic gas $\left( y=\frac{5}{3} \right)$ is mixed with one mole of a diatomic gas $\left( y=\frac{7}{3} \right),$ the value of y for the mixture is

A) 1.40

B) 1.50

C) 1.53

D) 3.07

• question_answer47) Oxygen boils at $-183{}^\circ C$.This temperature is approximately in fahrenheit is

A) $-329{}^\circ F$

B) $-261{}^\circ F$

C) $-215{}^\circ F$

D) $-297{}^\circ F$

• question_answer48) 420 J of energy supplied to 10 g of water will raise its temperature by nearly

A) $1{}^\circ C$

B) $4.2{}^\circ C$

C) $10{}^\circ C$

D) $42{}^\circ C$

• question_answer49) Using which of the following instruments, the temperature of the sun can be determined ?

A) Platinum thermometer

B) Gas thermometer

C) Pyrometer

D) Vapour pressure thermometer

• question_answer50) An ideal gas undergoes an adiabatic change in volume (V) with pressure (p). Then

A) ${{p}^{\gamma }}V$= constant

B) ${{p}^{\gamma }}V$= constant

C) ${{(pV)}^{\gamma }}$ = constant

D) $pV$= constant

• question_answer51) The most electronegative element in periodic table is

A) cesium

B) chlorine

C) fluorine

D) barium

• question_answer52) A neutral atom can accept electron to form an anion. The process involves

A) loss of energy

B) gain of energy

C) no change in energy

D) None of the above

• question_answer53) The outermost electronic configuration of the most electronegative element is

A) $n{{s}^{2}}n{{p}^{3}}$

B) $n{{s}^{2}}n{{p}^{4}}$

C) $n{{s}^{2}}n{{p}^{5}}$

D) $n{{s}^{2}}n{{p}^{6}}$

• question_answer54) The total number of electrons that take part in forming bond in ${{O}_{2}}$ is

A) $2$

B) $4$

C) $6$

D) $8$

• question_answer55) Methanol is soluble in water due to

A) covalent bond nature

B) hydrogen bonding

C) ionic bond nature

D) its poisonous nature

• question_answer56) The number of bonding and anti-bonding respectively in $CO$ molecule are

A) $8,2$

B) $2,8$

C) $4,2$

D) $2,4$

• question_answer57) The bond order in $He_{2}^{+}$ ion is

A) $0.5$

B) $1.0$

C) $1.5$

D) $2.0$

A) precook food

B) kill micro-organism

C) kill insects

D) increase nutrient value

• question_answer59) The name catalyst was given by

A) J.J. Thomson

B) J.J Thomson

C) Berzelius

D) Rutherford

A) $HCHO$

B) $H\,COOH$

C) $C{{H}_{3}}CHO$

D) $C{{H}_{3}}COOH$

• question_answer61) In which solvent are alkenes most soluble?

A) water

B) ethyl alcohol

C) carbon tetrachloride

D) ammonia

• question_answer62) Which of the following compounds will show geometrical isomerism?

A) Propene

B) 2-butene

C) Propyne

D) 2-butyne

• question_answer63) How many $\sigma$(sigma) bonds are there in $C{{H}_{2}}=CH-CH=C{{H}_{2}}$?

A) $3$

B) $6$

C) $9$

D) $12$

• question_answer64) When acetylene is passed through hot iron tube at ${{400}^{o}}C,$it gives

A) benzene

B) toluene

C) o-xylene

D) methylene

• question_answer65) Which of the following hydrocarbons has acidic hydrogen?s?

A) 1-butane

B) 1-butyne

C) 2-butene

D) 2-butyne

• question_answer66) Which of the following has the highest boiling point?

A) Diethyl ether

B) n-butyraldehyde

C) n-butyl alcohol

D) n-propyl chloride

A) 100% ethanol

B) 90% ethanol

C) 100% methanol

D) 95% ethanol

• question_answer68) Which one of the following reagents will react readily with both aldehydes and ketones?

A) Grignard reagent

B) Fehling?s reagent

C) Tollen?s reagent

D) Schiff?s reagent

• question_answer69) Which of the following compounds will give an iodoform test?

A) Benzoic acid

B) Ethanol

C) Benzyl chloride

D) M' ethanol

• question_answer70) Acetone undergoes reduction with hydrazine in the presence of $NaOH$to form propane. This reaction is known as

A) Clemmensen reduction

B) Wolff-Kishner reduction

C) Rosenmund reduction

D) Reformat sky reaction

• question_answer71) Which of the following will give acetic acid on acid hydrolysis?

A) Ethyl acetate

B) Acetone

C) Methyl propionate

D) Lactic acid

• question_answer72) Methylamine reacts with nitrous acid to form

A) $C{{H}_{3}}C{{H}_{3}}$

B) $C{{H}_{3}}N{{O}_{2}}$

C) $C{{H}_{3}}OH$

D) $C{{H}_{3}}C{{H}_{2}}OH$

• question_answer73) Which of the following compounds does not react with acetyl chloride?

A) Methylamine

B) Dimethylamine

C) Aniline

D) Trimethylamine

A) Benzene

B) Toluene

C) Benzoic acid

D) Nitrobenzene

• question_answer75) Which element is used to vulcanise rubber?

A) $P$

B) $Br$

C) $N$

D) $S$

A) $MgS{{O}_{4}}.7{{H}_{2}}O$

B) $CaS{{O}_{4}}.{{H}_{2}}O$

C) $MgS{{O}_{4}}.2{{H}_{2}}O$

D) $BaS{{O}_{4}}.2{{H}_{2}}O$

• question_answer77) Oxygen exhibits positive oxidation state in

A) $CO$

B) ${{F}_{2}}O$

C) $NO$

D) ${{N}_{2}}O$

• question_answer78) The poison for platinum catalyst is

A) sulphur

B) arsenic

C) selenium

• question_answer79) Chlorine gas is dried over

A) quicklime

B) caustic soda

C) caustic potash stick

D) cone. sulphuric acid

A) argon

B) helium

D) xenon

• question_answer81) The total number of Bravais lattices in crystal is

A) $7$

B) $32$

C) $230$

D) $14$

• question_answer82) If the de-Broglie wavelength of the fourth Bohr's orbit of hydrogen atom is $4\overset{\text{o}}{\mathop{\text{A}}}\,$ the circumference of the orbit is

A) $4\overset{\text{o}}{\mathop{\text{A}}}\,$

B) $4nm$

C) $16\overset{\text{o}}{\mathop{\text{A}}}\,$

D) $16\text{ }nm$

• question_answer83) The s and p characters in bond formed by central atom are equal in

A) $C{{H}_{4}}$

B) $CH\equiv CH$

C) $CH_{3}^{+}$

D) $CH_{3}^{-}$

• question_answer84) The maximum bond strength is in

A) ${{O}_{2}}$

B) $O_{2}^{+}$

C) $O_{2}^{-}$

D) $O_{2}^{2-}$

• question_answer85) The ratio of the radii of the nucleic He and } H is

A) $4$

B) $2$

C) $3$

D) $1.6$

A) M. Curie

B) M. Calvin

C) W. F. Libby

D) H. Becquerel

• question_answer87) The pH of $0.1\text{ }M$aqueous solution of $N{{H}_{4}}OH$is $({{K}_{b}}=1.0\times {{10}^{-5}})$

A) $3$

B) $10.5$

C) $11$

D) $7.5$

• question_answer88) The work differential, dW, is

A) a state function

B) an inexact differential

C) exact differential

D) None of the above

• question_answer89) For a real gas$\left( \frac{\partial U}{\partial V} \right)$is

A) zero

B) positive

C) negative

D) infinity

• question_answer90) $10\text{ }moles$of an ideal gas expands into a vacuum. The work done is

A) infinity

B) $10\text{ }J$

C) zero

D) $5\text{ }J$

• question_answer91) In Arrhenius equation for activation energy, $k=A{{e}^{-{{E}_{a}}/Rt}},$ A represents the following [a] Pre exponential factor [b] Frequency factor [c] Arrhenius factor [d] Collision factor and frequency The correct answer is

A) $1$and $3$

B) $1$ and $2$

C) $3$ and $4$

D) $-2$ and $3$

• question_answer92) Which is correct for an endothermic reaction?

A) $\Delta E$ is negative

B) $\Delta H$ is negative

C) $\Delta H$ is positive

D) $\Delta H$ is equal to zero

• question_answer93) In the lead-acid battery during charging, the cathode reaction is

A) reduction of $P{{b}^{2+}}$ to $Pb$

B) formation of $PbS{{O}_{4}}$

C) deposition of $Pb$ at the anode

D) formation of $Pb{{O}_{2}}$

A) T = constant

B) Q = 0

C) Q = constant

D) W = 0

• question_answer95) A real solution is that which

A) obeys Raoult's law

B) obeys Henry's law

C) does not obey Raoult's law

D) obeys Ohm's law

• question_answer96) The continuous rapid zig-zag movement executed by a colloidal particle in the dispersion medium is called

A) Tyndall effect

B) Brownian movement

C) electrophoresis

D) peptization

• question_answer97) The enthalpy change in the reaction $2CO+{{O}_{2}}\xrightarrow{{}}2C{{O}_{2}}$is termed as

A) enthalpy of reaction

B) enthalpy of fusion

C) enthalpy of combustion

D) enthalpy of formation

• question_answer98) Which of the following can change the value of equilibrium constant for a reaction

A) changing the concentration of the reactant

B) removing the products as they are formed

C) changing the solvent

• question_answer99) The vapour pressure of a dilute aqueous solution of glucose is $740\text{ }mm$of mercury at$373\text{ }K$. The mole fraction of the solute is

A) $\frac{1}{20}$

B) $\frac{1}{38}$

C) $\frac{1}{76}$

D) $\frac{1}{740}$

• question_answer100) How many grams of nickel can be electroplated from a solution of nickel chloride by 4F of electricity?

A) $29.3$

B) $58.7$

C) $117.4$

D) $176.1$

• question_answer101) Which is the unit of DNA?

A) Chromatin

B) Euchromatm

C) Chromosomes

D) Chromatids

• question_answer102) Which is the property of bile juice?

A) Not have any enzymes

B) It has crypsin

C) It has enterogastrone

D) It has trypofnomide

• question_answer103) In humans, which side of cerebral hemisphere recognises the faces of friends and family members?

A) Left cerebral hemisphere

B) Right cerebral hemisphere

C) Both [a] and [b]

D) None of the above

• question_answer104) The extra embryonic membranes of mammalian embryo are derived from

A) inner cell mass

B) trophoblast

C) formative cells

D) follicle cells

• question_answer105) Red tide is caused by

A) Protozoans

B) corals

C) dinoflagellates

D) All of these

• question_answer106) Find the out odd one

A) Guinea worm

B) Hookworm

C) Ringworm

D) Tapeworm

• question_answer107) The major constituent of vertebrate bone is

A) calcium phosphate

B) calcium carbonate

C) sodium chloride

D) potassium hydroxide

• question_answer108) Which of the following animal belongs to phylum-Mollusca ?

A) Globe fish

B) Star fish

C) Silver fish

D) Cattle fish

• question_answer109) Honey that has a high concentration of sugar, does not decay because

A) it contains natural antioxidant that prevent bacterial attack

B) bacteria cannot survive in an active state in a solution of high osmotic strength, as water is drawn out from honey

C) in honey bacteria are totally deprived of oxygen

D) None of the above

• question_answer110) Which of the following is iron storing protein?

A) Alpha globulin

B) Gamma globulin

C) Ferritin

D) Albumins

• question_answer111) Corpus striatum is found in

A) paracoel

B) diocoel

C) metacoel

D) cerebral hemisphere

• question_answer112) A rabbit runs very fast but after some time feel tired, because

A) formation of lactic acid in muscles

B) formation of succinic acid in muscles

C) loss of energy

D) None of the above

• question_answer113) Body cells infected with virus produce a protein Called

A) interferon

B) properdin

C) Gamma globulin

D) hybridoma

• question_answer114) The cytoplasmic segement of striated muscle fibre is termed

A) metamere

B) neuromere

C) sarcoplasm

D) sarcomere

• question_answer115) Capacitation of sperm in mammals involves

A) sperm size change

B) acrosome reaction

C) nuclear chromatin change

D) mitochondrial alignment

• question_answer116) Which one of the following is a pandemic disease ?

A) Amoebic dysentery

B) Hepatitis

C) Filariasis

D) Influenza

• question_answer117) Products of adenine and guanine metabolism are excreted by humans as

A) ammonia

B) urea

C) uric acid

D) allantoin

A) Reptiles and Mammals

B) Flat worms and Annelida

C) Mollusca and Arthropoda

D) Annelida and Arthropoda

• question_answer119) Which of the following is a hormonal disease ?

A) Cold

B) Goitre

C) Tuberculosis

D) Leprosy

• question_answer120) One gene-one enzyme hypothesis is proposed by

A) Watson and Crick

C) Singer and Nicolson

D) Schleiden and Schwan

• question_answer121) The skin colour of the humans are regulated by

A) multiple alleles

B) lethal genes

C) polygenes

D) None of these

• question_answer122) The thickening of wall of artery is called

A) aneurysm

B) arteriosclerosis

C) arthritis

D) Both [a] and [b]

• question_answer123) Which blood group has both 'a' and V antibodies ?

A) 0

B) AB

C) A

D) B

• question_answer124) Passive food ingestion in Amoeba is known as

A) invagination

B) import

C) drcumfluence

D) circumvallation

• question_answer125) Palaeontology is the study of

A) birds

B) bones

C) primates

D) fossils

• question_answer126) The thread-like structures that begin to radiate from each centromere by the end of prophase are

A) kinetochore microtubules

B) polar microtubules

C) aster microtubule

D) spindle microtubules

• question_answer127) In which vitamin the cobalt metal is present ?

A) ${{B}_{1}}$

B) ${{B}_{2}}$

C) ${{B}_{6}}$

D) ${{B}_{12}}$

• question_answer128) Which of the following is the least poisonous nitrogenous waste ?

A) Ammonia

B) Urea

C) Uric acid

D) D-Ammonia and urea

• question_answer129) Chloride shift is essential for the transportation of

A) $C{{O}_{2}}$

B) ${{O}_{2}}$

C) $C{{O}_{2}}$ and ${{O}_{2}}$

D) ${{N}_{2}}$

• question_answer130) The sensory neurons of a vertebrate retina are

A) rods and cones

B) ganglion cells

C) amacrine cells

D) bipolar cells

• question_answer131) At which stage does cytokinesis begin ?

A) Anaphase

B) Prophase

C) Metaphase

D) Interphase

• question_answer132) Each restriction enzymes cleaves a molecule only at

A) methyl groups

B) the ends of genes

C) particular nucleotide sequence

D) the time of DNA replication

• question_answer133) The bio concentration of DDT in the body fat of Indian people is

A) 13-31 ppm

B) 18-36 ppm

C) 5-10 ppm

D) 2-5 ppm

• question_answer134) In oogenesis, when a diploid cell in the ovary undergoes meiosis, how many ova results ?

A) 1

B) 2

C) 3

D) 4

• question_answer135) Natural selection acts on an organism's

A) dominant alleles

B) recessive alleles

C) phenorype

D) genotype

• question_answer136) An allergic reaction is initiated by antibodies of the

A) $\text{IgG}$group

B) $\text{Ig}\,\text{M}$

C) $\text{Ig}\,\text{A}$

D) $\text{Ig}\,\text{E}$

• question_answer137) The virus that causes Acquired Immune Deficiency Syndrome (AIDS) parasitizes

A) B-cells

B) cytotoxic T-cells

C) helper T-cells

D) the membrane of lymph nodes

• question_answer138) The geographic limits within which a population exists is its

A) niche

B) habitat

C) range

D) territory

• question_answer139) Which of the following taxonomic categories contains organisms least similar to one another?

A) Class

B) Genus

C) Family

D) Species

• question_answer140) Which of the following is a type of intercellular Junction between animals cells ?

A) Middle lamella

B) Plasmodesma

C) Desmosome

D) Glycocalyx

• question_answer141) Human sperm cells move by means of a

A) dlium

B) flagellum

C) basal body

D) hair

• question_answer142) Which of the following processes makes direct use of oxygen ?

A) Glycolysis

B) Fermentation

C) Krebs' cycle

D) Electron transport

• question_answer143) Genes that are inactive for long periods of time tend to be bonded to

A) each other

B) methyl groups

C) actin and myosin

D) the nucleolus

• question_answer144) M. A virus that can reproduce without killing its host is called a

A) lyric virus

B) retroactive virus

C) temperate virus

D) virion

• question_answer145) An organism with two different alleles is

A) homozygous for that trait

B) homologous for the allele

C) heterozygous for that trait

D) heterologous for the alleles

• question_answer146) The gerotypic expression seen in a person of blood group AB is called

A) dominant-recessive

B) codominance

C) incomplete dominance

D) corecession

• question_answer147) The genetic basis of haemophilia was revealed by studies of

A) DNA sequences

B) chromosome in gametes

C) family pedigree

D) prenatal gene products

• question_answer148) Diseases caused by pleiotropic genes are

A) syndromes

B) reversible by diet therapy

C) reversible by gene therapy

D) extremely rare

A) $C{{O}_{2}}$ hydrocarbons and tar

B) $C{{O}_{2}}$and tar

C) $C{{O}_{2}}$, polycyclic aromatic hydrocarbons and tar

D) $C{{O}_{2}},CO$ and tar

• question_answer150) Alcohol depresses nervous system and acts as

A) sedative agents

B) analgesic agent

C) anesthetic agents

D) All of these

• question_answer151) Merozygore is formed in

A) Yeast

B) Spirogyra

C) Escherichia coli

D) Neurospora

• question_answer152) The fermented food of Mucor is

A) tempe kedel

B) tofu

C) tempe kedel

D) sufu

• question_answer153) The theory that all the cells arise from pre-existing cells (Omnis cellula e cellula) was proposed by

A) Schwann (1839)

B) Brown (1831)

C) Virchow (1855)

D) Schleiden (1938)

• question_answer154) C He most studied prokaryote is

A) Klebsiella pneumonia

B) Pseudomonas sp

C) Escherichia coli

• question_answer155) Which bacterium has two chromosomes in nucleoid?

A) Artho bacterium sp

B) Vibrio cholera

C) Xanthomonas citri

D) Closmdium

• question_answer156) Which of the following ribosomal RNA is most extensively used to establish phylogenetic relationship among eukaryotes?

A) 16S

B) 18S

C) 5S

D) 34S

• question_answer157) Annealing' is a phenomenon related to

A) denaturation of DNA

B) renamration of DNA

C) melting point of DNA (Tm)

D) separation of G from C

• question_answer158) One of the following plasmid produces lacteriocin' which is lethal to other strains of same genus

A) $Ti$

B) $Cpl\text{ }E$

C) ${{\text{R}}_{\text{100}}}$

D) $pB{{r}^{322}}$

A) Leucocytes

B) Amoeba

C) Hela cells

D) Mammalian erythrocytes

• question_answer160) Chromoplast contains pigment other than.

A) chlorophyll

B) anthocyanin

C) $\text{ }\!\!\beta\!\!\text{ -}$carotene

D) xanthophylls

• question_answer161) A dihybrid cross between pea plants with "yellow round' and 'green wrinkled', seed in ${{F}_{2}}$ generation genotype yy Rr yy rR means

A) heterozygous yellow wrinkled

B) heterozygous yellow round

C) heterozygous green round

D) heterozygous green wrinkled

• question_answer162) In male human, how many linkage groups occur in their chromosome ?

A) 22

B) 24

C) 23

D) 46

• question_answer163) During crossing over, synaptonemal complex in between two paired chromosome is formed in which stage of meiosis?

A) Diplotene

B) Diakinesis

C) Pachytene

D) Leptotene

• question_answer164) The enzyme which act to hydrolyse or breakdown a polynucleotide chain into its component nucleotide is

A) gyrases

B) polymerases

C) nucleases

D) primases

• question_answer165) In most organisms the 'initiation codon' is

A) UAG

B) AUG

C) GUA

D) GAU

• question_answer166) In E. coli, the average life of mRNA is about

A) 2h

B) 2 min

C) 2 s

D) indefinite period

• question_answer167) Antibiotic which inhibits cell wall synthesis in bacteria

A) chloramphenicol

B) erythromycin

C) penicillin

D) tetracycline

• question_answer168) Cell wall of xylem is rich in

A) starch

B) lignin

C) lipid

D) protein

• question_answer169) Anatomically jute fibres are

A) xylem fibres

B) phloem fibres

C) sclerenchyma fibres

D) cortical fibres

• question_answer170) The first sporophyte arising from pollen grain was made by Guha and Maheshwari (1966) in

A) Hyacinthus

B) Datura

C) Drosera

D) Glycine max

• question_answer171) The haustorial behaviour where entire embryo sac grow beyond the ovular tissue occur in

A) Santalum

B) Zea mays

C) Argemone

D) Datura

• question_answer172) The chief source of nutrition of embryo inside the ovule is

A) endosperm

B) ovular tissue

C) embryo sac

D) haustoria

• question_answer173) Cereal proteins are deficient in one of the following amino acid

A) methionine

B) threonine

C) lysine

D) glutamic acid

• question_answer174) 'Elicitors' are molecule which stimulate production of

A) primary metabolites

B) secondary metabolites

C) tertiary metabolites

D) all metabolites

• question_answer175) Malolactic fermentation during wine production is performed by

A) Lactobacillus

B) Leuconostoc

C) Saccharomyces

D) As pergillus

• question_answer176) 'Downstream process' in fermentation technology means

A) secretion of metabolites in stationary phase

B) actual recovery of useful product

C) removal of waste after fermentation

D) None of the above

• question_answer177) Cephalosporum acremonium a fungus which produces cephalosporin is

A) marine fungus

B) fresh water fungus

C) soil fungus

D) endophyte

A) membrane bound nucleus

B) complex membranous internal organ

C) gas vesicle

D) mRNA in trons

• question_answer179) T series bacteriophage possess complex tail structure is

A) ${{T}_{1}}$

B) ${{T}_{2}}$

C) ${{T}_{3}}$

D) ${{T}_{4}}$

• question_answer180) Mycoplasmas differs from other bacteria in their

A) DNA

B) RNA

C) cell wall

D) nutrition

• question_answer181) Cyanobacteria differs from other groups of bacteria in their

A) DNA

B) cell wall

C) nutrition

D) reproduction

• question_answer182) Nostoc does not form symbiotic association with

A) Cycos

B) Anthoceros

C) Pinus

D) Gunnera

• question_answer183) Penicillin is produced commercially from

A) Penidllium notatum

B) P. chrysogenum

C) P. citrinum

D) P. rubrum

• question_answer184) Which of the following statement is true?

A) Pure water has minimum water potential

B) Greater the water molecule in a system lesser the kinetic energy

C) Water always move from lower water potential to higher one

D) The water potential of pure water is zero.

• question_answer185) Alga commonly known as "water silk' or 'pond silk' is

A) Zygnema

B) Spirogyra

D) Oedogonium

• question_answer186) In Funaria stomata are found in

A) capsule

B) foot

C) seta

D) thallus

• question_answer187) Trabeculae in Selaginella is

A) modified pericycle

B) elongated endodermis

C) elongated cortical cell

D) modified xylem vessel

• question_answer188) Rhizobia form nodule in Glycine max (soybean) is

A) Azorhizobium

C) Sinorhizobium

D) Mesorhizobium

• question_answer189) The scientific name of 'Haldi' is

A) Curcuma longa

B) C. aromatic

C) C. zedoaria

D) C. leucorhiza

• question_answer190) The most primitive family of dicot is

A) Rosaceae

B) Magnoliaceae

C) Utricaceae

D) Cactaceae

• question_answer191) The present level (2009-10) of $C{{O}_{2}}$ (ppm) in atmosphere is about

A) 346

B) 385

C) 365

D) 355

• question_answer192) My corrhizal association of which plant enables it to utilize amino acid as N-source?

A) Strawberry

B) Cranberry

C) Orchids

D) Pinus

• question_answer193) Which part of the root is most active in absorption of phosphate?

A) Root cap

B) Meristematic zone

C) Root hairs

D) Root apex

• question_answer194) The main part of entry of $C{{O}_{3}}$ into leaf is

A) cuticle

B) epidermis

C) stomata

D) pore

• question_answer195) Oxygen liberated during photosynthesis comes from

A) carbon dioxide

B) water

C) chlorophyll

D) phosphoglyceric acid

• question_answer196) In anaerobic respiration ATP produced (mol.) is

A) 24

B) 12

C) 2

D) 8

• question_answer197) Which is an example of 'hydrolases'?

A) Catalase

B) Trypsin

C) Oxidases

D) Transaminases

• question_answer198) Which one of the following is 100 times more reactive than CFC in destroying ozone ?

A) $\text{IFC}$

B) $\text{Br}\,\text{FC}$

C) $\text{UV-B}$

D) $\text{UV-C}$

• question_answer199) Which of the following process helps in nutrient conservation ?

A) Meneralization

B) Leaching

C) Immobilization

D) Nitrification

• question_answer200) Engine fitted in two wheeler perform compel combustion of fuel is

A) two stroke

B) three stroke

C) four stroke

D) one stroke