# Solved papers for RAJASTHAN ­ PMT Rajasthan - PMT Solved Paper-1996

### done Rajasthan - PMT Solved Paper-1996

• question_answer1) For coherent sources, it is essential that their:

A) amplitudes are equal

B) wavelength are equal

C) frequencies are equal

D) initial phase difference is constant

• question_answer2) In Youngs double slit experiment the intensities of dark and bright lines are 1 and 4 respectively, then the amplitudes of the source are in the ratio:

A) $1:1$

B) $1:2$

C) $3:1$

D) $1:3$

• question_answer3) The values of voltage and frequency of electric supply for domestic use in India are:

A) $\text{220}\,\text{V}\,\text{(r}\text{.m}\text{.s),}\,\text{60}\,\text{Hz}$

B) $\text{220}\,\text{V}\,\text{(r}\text{.m}\text{.s),}\,5\text{0}\,\text{Hz}$

C) $\text{220}\,\text{V}\,\text{(r}\text{.m}\text{.s),}\,6\text{0}\,\text{Hz}$

D) $\text{220}\,\text{V}\,\text{(r}\text{.m}\text{.s),}\,5\text{0}\,\text{Hz}$

• question_answer4) In bringing an $\alpha$ particle from rest from a position where electric potential is 70 volt to another position where the potential is 50 volt, the K.E. will be:

A) $40eV$

B) $40keV$

C) $40MeV$

D) $0eV$

• question_answer5) If the length of a so no meter wire is halved, the resonance frequency will become:

A) three times

B) halved

C) four times

D) double

• question_answer6) The order of pressure in coolidge rube is:

A) zero mm of $Hg$

B) ${{10}^{-6}}mm$of $Hg$

C) ${{10}^{-3}}mm$of $Hg$

D) $0.1mm$of $Hg$

• question_answer7) The radius of fourth half period zone at a point 4 m away from a plane wave front of wavelength $6400\overset{\text{o}}{\mathop{\text{A}}}\,$is:

A) $32\times {{10}^{-4}}m$

B) $30\times {{10}^{-4}}cm$

C) $33\times {{10}^{-4}}mm$

D) $16\times {{10}^{-3}}m$

• question_answer8) Two waves represented by ${{y}_{1}}=a\,\sin \,\left( \omega t+\frac{\pi }{6} \right),{{y}_{2}}=a\,\cos \,\omega t,$ the resultant amplitude will be:

A) $a$

B) $a\sqrt{2}$

C) $a\sqrt{3}$

D) $2a$

• question_answer9) The correct relation between paramagnetic suspectibility X and temperature T is:

A) $X=\frac{C}{T}$

B) $X=CT$

C) $X=\frac{T}{C}$

D) $X=C{{T}^{2}}$

A) $v=a\,(z-\sigma )$

B) $v\frac{a}{z-\sigma }$

C) $v=a{{(z-\sigma )}^{2}}$

D) $v=a\sqrt{z-\sigma }$

• question_answer11) A person will get more quantity of matter in 1 kg weight at:

A) poles

B) moon

C) equator

D) artificial satellite

• question_answer12) An elastic ball is released from height of 100 m, and on colliding with earth its 20% energy is dissipated, the height to which ball rebounds:

A) $80m$

B) $40\text{ }m$

C) $60\,m$

D) $20\,m$

• question_answer13) Two identical soap bubbles of radius R are touching each other. The radius of curvature of the common surface is:

A) infinite

B) R

C) R/2

D) zero

• question_answer14) Angular velocity of minute hand of a clock is:

A) $\frac{\pi }{21600}rad/\sec$

B) $\frac{\pi }{12}rad/\sec$

C) $\frac{\pi }{3600}rad/\sec$

D) $\frac{\pi }{1800}rad/\sec$

• question_answer15) The presence of atmosphere on a planet means:

A) ${{C}_{rms}}<<{{\upsilon }_{e}}$

B) ${{C}_{rms}}>{{\upsilon }_{e}}$

C) The mass of density of planet is small

D) ${{C}_{rms}}=0$

• question_answer16) Positive rays are the beam of:

A) positrons

B) protons

C) $\alpha$ particles

D) positive ions

• question_answer17) In space, in zero gravity position, when a liquid is heated, then transfer of heat will be in the form :

A) conduction

B) convection

D) in zero gravity position, liquid cannot be heated

• question_answer18) For L-C-R series A.C. circuit, in resonating conditions which is true?

A) Minimum current

B) Minimum impendence

C) Power loss minimum

D) Minimum power factor

• question_answer19) If the refracting angle of a bi-prism is increased, what shall be its effect on fringe pattern?

A) Fringes will come closer

B) Fringes pattern will not be obtained

C) Fringes will not be affected

D) Fringes will get distorted

• question_answer20) The value of$\frac{{{f}_{2}}}{{{f}_{1}}}$for zone plate is:

A) $\frac{2}{5}$

B) $\frac{5}{2}$

C) $\frac{3}{9}$

D) $\frac{1}{3}$

• question_answer21) The percentage quantity of a radioactive substance remained after five half-lives will be:

A) $31%$

B) $3.125%$

C) $0.3%$

D) $1%$

• question_answer22) A star is receding from earth with velocity ${{10}^{6}}m/s$. If the wavelength of one of its spectral lines is$5700\overset{o}{\mathop{\text{A}}}\,$, the observed Doppler shift will be:

A) $200\overset{o}{\mathop{\text{A}}}\,$

B) $19\overset{o}{\mathop{\text{A}}}\,$

C) $20\overset{o}{\mathop{\text{A}}}\,$

D) $0.2\overset{o}{\mathop{\text{A}}}\,$

• question_answer23) The displacement equation for two waves undergoing superposition are ${{y}_{1}}=4\,\sin \,\omega t,{{y}_{2}}=3\sin \,(\omega t+\pi /2),$then resultant amplitude will be:

A) $5\,cm$

B) $7\,cm$

C) $1\,cm$

D) $0\,cm$

• question_answer24) The magnetic moment of a magnetic wire of length L is M. If the wire is bent in form of a semicircle its magnetic moment becomes:

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

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

C) $M$

D) $M\pi$

• question_answer25) The isotopes used commonly for treatment of the cancer is:

A) ${{K}^{40}}$

B) $C{{o}^{60}}$

C) $S{{r}^{90}}$

D) ${{I}^{131}}$

• question_answer26) 1 volt is equivalent to:

A) 1 eV

B) $\frac{joule}{coulomb}$

C) joule-coulomb

D) $\frac{erg}{coulomb}$

• question_answer27) Two sirens 1 km apart are producing sound by $330\,Hz$an observer is coming towards a siren from another siren, then apparent frequency will be:

A) $8\,Hz$

B) $4\,Hz$

C) $6\,Hz$

D) $1\,Hz$

• question_answer28) If the distance between a point source of light and a screen is made one third, then relation between intensity of light$\text{(I)}$ and initial intensity $\text{(}{{\text{I}}_{0}}\text{)}$will be:

A) $\text{I=}\frac{{{\text{I}}_{\text{0}}}}{\text{3}}$

B) $\text{I=}\frac{{{\text{I}}_{\text{0}}}}{9}$

C) $\text{I=}{{\text{I}}_{\text{0}}}$

D) $\text{I=9}{{\text{I}}_{\text{0}}}$

• question_answer29) Wavelength of X-ray is of the order:

A) $\text{1}{{\text{0}}^{\text{-10}}}\,\text{m}$

B) $\text{1}{{\text{0}}^{\text{-10}}}\,\text{cm}$

C) $\text{1}{{\text{0}}^{\text{10}}}\,\text{m}$

D) $\text{1}{{\text{0}}^{\text{10}}}\,c\text{m}$

• question_answer30) A chock coil is connected with a fluorescent tube as to:

A) produce high voltage first, then low current

B) produce high current first, then high voltage.

C) produce high current first, then low voltage.

D) none of these

• question_answer31) Two waves represented as $x=a\,\sin (\omega t+\pi /6),\,x=a\,\cos \varepsilon t,$ then resultant phase difference between them is:

A) $\pi /\text{3}$

B) $\pi /\text{6}$

C) $\pi /\text{2}$

D) $\pi$

• question_answer32) The intensity of central fringe in a fringe pattern obtained from two slits of equal widths is$I.$ If one of these slits is closed the intensity at the same place becomes ${{I}_{0.}}$ The correct relation between $I$ and ${{I}_{0.}}$ is:

A) $I=4{{I}_{0}}$

B) $I=2{{I}_{0}}$

C) $I={{I}_{0}}$

D) $I=\frac{{{I}_{0}}}{2}$

• question_answer33) Coherent waves are obtained by method of division of amplitude in which of the following experiments?

A) Youngs double slit

B) Fresnels biprism

C) Michelson Morley

D) Lyods mirror

• question_answer34) An astronaut is revolving in a circular orbit around the earth at a height 120 km above the surface, then gently drops a pen, then the pen:

A) will move towards the moon

B) will move down straight towards earth

C) will move with satellite in same direction

D) will move opposite to direction of satellite

• question_answer35) The amplification factor of a triode is 20 and trans conductance is 3 mili mho. If the load resistance is$3\times {{10}^{4}}\,\Omega ,$ then voltage gain of triode:

A) $16.36$

B) $28$

C) $78$

D) $108$

• question_answer36) The charge is quantized, this is shown by:

A) Davisson-Germers experiment.

B) Crompton scattering experiment.

C) Milikans oil drop experiment.

D) Raman effect

• question_answer37) The peak value of an A.C. is $2\sqrt{2}$ A, its rms value will be:

A) $\text{1A}$

B) $\text{2A}$

C) $\text{4A}$

D) zero

• question_answer38) At a frequency more than the resonance frequency, the nature of an anti resonance circuit is:

A) resistive

B) capacitive

C) inductive

D) all above

• question_answer39) The constant quantity for equal volumes of two gases at same pressure and temperature is:

A) number of molecules

B) average kinetic energy

C) RMS velocity

D) mean free path

• question_answer40) The meniscus of mercury in a capillary is:

A) concave

B) convex

C) plane

D) circular

• question_answer41) The moment of inertia of a thin rod of mass M and length L about an axis through one of its ends and perpendiculars length is:

A) $\frac{M{{L}^{2}}}{3}$

B) $\frac{M{{L}^{2}}}{12}$

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

D) $\frac{M{{L}^{2}}}{13}$

• question_answer42) The quantity conserved for earth moving round the sun is:

A) angular momentum

B) linear momentum

C) rational K.E.

D) kinetic energy

• question_answer43) For an elastic collision:

A) both kinetic energy and momentum are conserved

B) both kinetic energy and momentum are not conserved

C) either kinetic energy or momentum do not conserved

D) momentum is conserved but not kinetic energy

• question_answer44) A system does 50 J of work under adiabatic condition. In this process:

A) temperature of system will increase

B) temperature of system will remain same

C) internal energy of system will increase

D) internal energy of system will decrease

• question_answer45) At certain instance the displacement and acceleration of a harmonic oscillator are respectively $0.02\text{ }m$and $2m/{{s}^{2}},$ its angular speed at this instant is (in rad /s):

A) $100$

B) $10$

C) $1$

D) $0.1$

• question_answer46) An ideal monoatomic gas is taken along the path LMNO as shown in figure, work done during the cycle will be:

A) PV

B) 2 PV

C) 3 PV

D) 4 PV

• question_answer47) The origin of Fraunhauffer rays is:

A) reflection of radiations by chromosphere.

B) absorption of raditions by chromosphere.

C) emission of radiations by chromosphere.

D) transmission of radiations by chromosphere.

• question_answer48) If the reactance and resistance of a work coil are ${{X}_{L}}$ and R respectively, then:

A) ${{X}_{L}}=R$

B) ${{X}_{L}}>>R$

C) ${{X}_{L}}<<R$

D) ${{X}_{L}}=\infty$

• question_answer49) A pure resistance is connected as shown in the figure, the phase difference between current and e.m.f is:

A) zero

B) $\text{/2}$

C) $\text{-}\text{/2}$

D) $\text{/4}$

• question_answer50) The path difference, time difference and phase difference between two consecutive half period zones are respectively:

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

B) $\lambda ,T,\pi$

C) $\frac{\lambda }{2}\frac{T}{2}\frac{\pi }{2}$

D) $\frac{\lambda }{2}\frac{T}{2}2\pi$

• question_answer51) To obtain the first minima on screen from a circular aperture the number of zones passing through it should be:

A) $4$

B) $6$

C) $3$

D) $2$

• question_answer52) Forbidden energy gap in an intrinsic semiconductor is of the order of:

A) $0.1\,eV$

B) $1\,eV$

C) $5\,eV$

D) $10\,eV$

• question_answer53) The expression relating magnetic induction B magnetizing field H and magnetization intensity $I$ is:

A) $B={{\mu }_{0}}H+I$

B) $B={{\mu }_{0}}I+H$

C) $B={{\mu }_{0}}(H+I)$

D) $B={{\mu }_{0}}(H-I)$

• question_answer54) With what velocity should a source of sound move away from the observer so that to the observer the frequency of sound may appear to be half of the actual frequency:

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

B) $\upsilon 2$

C) $\frac{\upsilon }{4}$

D) $\upsilon$

• question_answer55) The intensity of X-ray is controlled in coolidge tube by:

A) filament current

B) potential difference between cathode and anti cathode

C) both a and b

D) none of these

• question_answer56) The refractive indices of water and glass slab are 4/3 and 5/3 respectively, then critical angle of light entering from glass into water is:

A) ${{\sin }^{-1}}\frac{4}{5}$

B) ${{\sin }^{-1}}\frac{5}{4}$

C) ${{\sin }^{-1}}\frac{1}{2}$

D) ${{\sin }^{-1}}\frac{2}{1}$

• question_answer57) A rocket is receding from earth with a velocity$0.2c$. It emits a signal of frequency$4\times {{10}^{7}}Hz$. The frequency as observed on earth will be:

A) $4\times {{10}^{6}}Hz$

B) $3.3\times {{10}^{7}}Hz$

C) $3\times {{10}^{6}}\,Hz$

D) $5\times {{10}^{7}}Hz$

• question_answer58) A normally incident ray reflected at an angle of${{90}^{o}}$. The value of critical angle is:

A) ${{45}^{o}}$

B) ${{90}^{o}}$

C) ${{65}^{o}}$

D) ${{43.5}^{o}}$

• question_answer59) Waves used in sonography is:

A) micro waves

B) infrared waves

C) sound waves

D) ultrasonic waves

• question_answer60) If the plate resistance and voltage gain of a triode amplifier are $15k\Omega$and 50. Then for a load resistance $100k\Omega$ amplification factor will be:

A) $5$

B) $50$

C) $57.5$

D) $75.5$

• question_answer61) In the space charge limited region for vacuum tube diode for plate voltage 400 and 200 volts. The plate current and ${{I}_{{{P}_{1}}}}$and${{I}_{{{P}_{2}}}}$ have ratio:

A) $1:2$

B) $2:1$

C) $1:2\sqrt{2}$

D) $2\sqrt{2}:1$

• question_answer62) Hardness of X-rays produced by Coolidge tube depends on :

A) filament current

B) air pressure in tube

C) target material

D) potential difference between cathode and target

• question_answer63) At some instant two radioactive substance are having amount in ratio: 1. Their half lives are $12\,hrs$and $16\,hrs$, then after 2 days the ratio of their quantities:

A) $1:1$

B) $2:1$

C) $1:2$

D) $1:4$

• question_answer64) The curve showing correct variation of capacitative reactance ${{X}_{C}}$ with frequency $f$is:

A)

B)

C)

D)

• question_answer65) ${{\upsilon }_{m}}-T$ curves for a perfect black body is:

A) A

B) B

C) C

D) D

• question_answer66) A rocket is approaching on the moon with a velocity$\upsilon$. The astronaut in rocket sends electromagnetic signals of frequency $\upsilon$ towards the moon and receives the signals after signals being reflected by the moon. The observed change in frequency will be:

A) $\frac{Cv}{C-\upsilon }$

B) $\frac{Cv}{C-2\upsilon }$

C) $\frac{2v\upsilon }{C}$

D) $\frac{2Cv}{\upsilon }$

• question_answer67) A light wave is incident on a plane face with speed v. After reflection its speed becomes:

A) $\upsilon$

B) $2\upsilon$

C) $3\,\upsilon$

D) $4\,\upsilon$

• question_answer68) The half life of a radioactive element is T and $\lambda$, is its decay constant, then:

A) $\lambda T=1$

B) $\lambda T=\frac{1}{2}$

C) $\lambda T={{\log }_{e}}2$

D) $\lambda =-{{\log }_{e}}2T$

• question_answer69) The internal resistance of a cell does not depend on:

A) current drawn from cell

B) distance between electrode

C) concentration of electrolyte

D) e.m.f. of the cell

• question_answer70) The range of magnetic permeability of diamagnetic materials is:

A) $-1<\mu <-10$

B) $1<\mu <10$

C) $1<\mu >10$

D) $0<\mu <1$

• question_answer71) The de Broglices wavelength of an a particle accelerated through a voltage V is:

A) $\frac{0.287}{\sqrt{V}}\overset{o}{\mathop{\text{A}}}\,$

B) $\frac{12.27}{\sqrt{V}}\overset{o}{\mathop{\text{A}}}\,$

C) $\frac{4.34}{\sqrt{V}}\overset{o}{\mathop{\text{A}}}\,$

D) $\frac{0.202}{\sqrt{V}}\overset{o}{\mathop{\text{A}}}\,$

• question_answer72) The wavelength of first line of Balmer series is$6563\overset{\text{o}}{\mathop{\text{A}}}\,$. The wavelength of first line of Lyman series is:

A) $1215.4\overset{\text{o}}{\mathop{\text{A}}}\,$

B) $2500\overset{\text{o}}{\mathop{\text{A}}}\,$

C) $7500\overset{\text{o}}{\mathop{\text{A}}}\,$

D) $600\overset{\text{o}}{\mathop{\text{A}}}\,$

• question_answer73) The reactance of an inductor at${{10}^{4}}Hz$. is ${{10}^{4}}\Omega ,$then its reactance at $2\times {{10}^{4}}Hz$is:

A) ${{10}^{4}}\Omega$

B) $2\times {{10}^{4}}\Omega$

C) $3\times {{10}^{4}}\Omega$

D) $4\times {{10}^{4}}\Omega$

• question_answer74) If the specific resistance and area of cross section of a potentiometer wire are $\rho$ and A and$I$is current flowing through it, then potential gradient is:

A) $\frac{I\rho }{A}$

B) $\frac{I}{A\rho }$

C) $\frac{IA}{\rho }$

D) $IA\rho$

• question_answer75) In stationary waves at antinodes:

A) energy is maximum

B) pressure and change in density is maximum

C) change in strain is maximum

D) all the above

• question_answer76) The ratio of diameters of fourth and nineth half period zone will be:

A) $2/3$

B) $4/9$

C) $1/4$

D) $16/81$

• question_answer77) The induced e.m.f. in a L-R circuit is maximum:

A) at the time of switching on due to high resistance

B) at the time of switching off due to high resistance

C) at the time of switching off due to low resistance

D) at the time of switching on due to low resistance

• question_answer78) At normal temperature the degree of freedom for a diatomic gas are:

A) $7$

B) $6$

C) $5$

D) $4$

• question_answer79) A ball is released from height h above the ground. If the coefficient of restitution is e, up to what height the ball rises after rebounding twice with the ground:

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

B) $2eh$

C) $eh$

D) ${{e}^{4}}h$

• question_answer80) A bob of mass M is connected with two springs as shown in figure the time period of horizontal oscillation of M will be (no damping force is present):

A) $2\pi \sqrt{\frac{3k}{M}}$

B) $2\pi \sqrt{\frac{k}{M}}$

C) $2\pi \sqrt{\frac{M}{2k}}$

D) $2\pi \sqrt{\frac{M}{3k}}$

• question_answer81) Expressions for e.m.f- and current in A.C. circuit are $E=200sin\text{ }314\text{ }t$volt and $I=100\,\sin \,\left( 314t+\frac{\pi }{3} \right)A,$ the power factor will be:

A) $1/2$

B) $1/4$

C) $1$

D) $-1$

• question_answer82) Two solid sphere is each of mass M and radius R/2 are connected with a mass less rod of length 2R. The moment of inertia of the system about an axis through the centre of any sphere and perpendicular to the rod is:

A) $\frac{21}{5}M{{R}^{2}}$

B) $\frac{2}{5}M{{R}^{2}}$

C) $\frac{5}{2}M{{R}^{2}}$

D) $\frac{5}{21}M{{R}^{2}}$

• question_answer83) The water rises to a height of 5 cm in a straight capillary when it is dipped vertically in water. If this capillary is now twisted as shown m figure. The height of water column will be:

A) 5 cm

B) less than 5 cm

C) more than 4 cm

D) none of the these

• question_answer84) Ozone layer is important for us as this :

A) prevents cooling of earth during night.

B) protects us from intrared rays coming from space.

C) protects us from. metaroids coming from space.

D) protects us from ultravoilet rays coming from space.

• question_answer85) If resonance frequency is f and then the capacity is increased 4 times, then new resonance frequency will be:

A) $f\text{/2}$

B) $2f$

C) $f$

D) $f\text{/4}$

• question_answer86) The velocity of sound in air is $333\text{ }m/s,$ if the fundamental frequency of an open pipe is 333 Hz Then length of the pipe required to produce second over tone is:

A) $0.5m$

B) $1.0m$

C) $1.5m$

D) $2m$

• question_answer87) Arrange the following in increasing order of work:

A) $adiabatic>isothermal>isobaric$

B) $isobaric>adiabatic>isothermal$

C) $adiabatic>isobaric>isothermal$

D) none of these

• question_answer88) On placing a mica sheet of thickness t and refractive index$\mu$ in the path of first ray producing the interference, by what amount the fringe pattern shifts towards:

A) $\frac{d}{D}(\mu -1)t$

B) $\frac{D}{d}(\mu -1)t$

C) $\frac{d}{(\mu -1)D}$

D) $\frac{D}{d}(\mu -1)$

• question_answer89) The fundamental frequency of an open pipe is$f.$ The pipe is now vertically dipped in water such that it is half immersed. The fundamental frequency of air column is now:

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

B) $\frac{3f}{4}$

C) $f$

D) $2f$

• question_answer90) The ratio of number of turns in secondary and primary coils of a stepup transformer is$4:1$. If the current in the primary coil is 4 amp. The current in the secondary coil is:

A) $8A$

B) $2A$

C) $1A$

D) $0.5A$

• question_answer91) For the given circuit the reading of voltmeter V and ameter A is:

A) $800V,\text{ }2\text{ }A$

B) $300V,2\text{ }A$

C) $220V,2.2A$

D) $100V,2A$

• question_answer92) On increasing the temperature of a gas filled in a close container by ${{1}^{o}}C$, its pressure increases by 0.4%, initial temperature of the gas is:

A) ${{25}^{o}}C$

B) ${{250}^{o}}C$

C) ${{250}^{o}}K$

D) ${{2500}^{o}}C$

A) less than initial temperature

B) same as initial temperature

C) more than initial temperature

D) more or less than initial temperature

• question_answer94) depending upon nature of gas The mechanical work required to increase the unit surface area of a liquid is termed as its surface tension, when the liquid is under

A) isothermal condition

B) isobaric condition

C) isomeric condition

• question_answer95) A sphere of mass m is moving with constant velocity collides with another identical sphere at rest. The ratio of the velocities of spheres after collision will be: (e = coefficient of restitution)

A) $\frac{1-e}{1+e}$

B) $\frac{e-1}{e+1}$

C) $\frac{1+e}{1-e}$

D) $\frac{e+1}{e-1}$

• question_answer96) The moment of inertia of a figure about its axis is same as its moment of inertia about a perpendicular axis, the figure is:

A) bisc

B) solid cylinder

C) ring

D) spherical shell

• question_answer97) A clock P is based on a simple pendulum and another clock S is based on spring oscillations. Both the clocks run with the same speed on earth. On a planet having density same as earth but twice the radius:

A) S will move faster than P

B) P will move faster than P

C) their speeds are same as that on earth

D) their speeds are same but different that on earth

• question_answer98) A body is rolling on a horizontal plane such that its rotational kinetic energy is same as its translational kinetic energy. The body is a:

A) disc

B) sphere

C) cylinder

D) ring

• question_answer99) Two containers of same volume are filled with molecular hydrogen and helium respectively at 1 and 2 atmospheric pressure. If the temperature of both specimen are same, then average velocity $<{{C}_{H}}>$of hydrogen molecules will be:

A) $<{{C}_{H}}>=\sqrt{2}<{{C}_{He}}>$

B) $<{{C}_{H}}>=<{{C}_{He}}>$

C) $<{{C}_{H}}>=2<{{C}_{He}}>$

D) $<{{C}_{H}}>=\frac{<{{C}_{He}}>}{2}$

• question_answer100) Who first discovered that white light consists of seven colours?

A) Huygen

B) Raman

C) Newton

D) Einestein

• question_answer101) The formation of the phenol from the phenolphthalien is called:

A) Phenolphthalien reaction

B) Reimer-Tiemanns reaction

C) Coupling reaction

D) Kolbes reaction

• question_answer102) The pyrolusite ore contains:

A) $Cu$

B) $Mn$

C) $Zm$

D) $Fe$

• question_answer103) Which of the following compounds distillation with concentrated ${{H}_{2}}S{{O}_{4}}$gives mesitylene?

A) Acetyl chloride

B) Acetaldehyde

C) Acetophenone

D) Acetone

• question_answer104) Which of the following statement is false?

A) The rate of esterification of alcohols is ${{1}^{o}}>{{2}^{o}}>{{3}^{o}}$

B) Catalytic oxidation of methane gives methanol

C) All secondary alcohols give iodoform test

D) All methyl ketones give iodoform test.

• question_answer105) Which of the following have tetrahedral shape?

A) $S{{F}_{6}}$

B) $I{{F}_{7}}$

C) $B{{F}_{3}}$

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

• question_answer106) Which of the following matching is not possible?

A) James Chedwick - neutron

B) J. J. Thomson - discovery of electron

C) Faraday - discovery of benzene

D) Graham - law of mass action

• question_answer107) Arrange the following acids in the ascending order of their $_{p}{{K}_{a}}$ values:

 (1) formic acid (2) chloroacetic acid (3) acetic acid (4) trichloroacetic acid

A) $4,2,1,3~$

B) $4,1,2,3$

C) $1,2,3,4$

D) $4,3,2,1$

• question_answer108) Which of the following compound react with aluminium ethoxide and formed a sweet smell-quid?

A) Acetaldehyde

B) Alcohol

C) Acetone

D) Ether

• question_answer109) The mole of ${{H}^{+}}$ ion is ${{10}^{-7}}$ in one litre water. What is the degree of ionization?

A) $1.8\times {{10}^{-7}}%$

B) $1.8\times {{10}^{-9}}%$

C) $3.6\times {{10}^{-7}}%$

D) $3.6\times {{10}^{-9}}%$

• question_answer110) Which of the following is react with methyl alcohol and salt of formic acid with dilute base?

A) Formaldehyde

B) Acetone

C) Alcohol

D) Ether

• question_answer111) The geometries of some complex ions are given as under:

A) ${{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}}$ tetrahedral

B) $[Ag{{(N{{H}_{3)}}_{_{2}}]}^{+}}$- linear

C) ${{[Fe{{(CN)}_{6}}]}^{4-}}$ - octahedral

D) ${{[Ni{{(CN)}_{4}}]}^{2-}}$ - square planar

• question_answer112) Which of the following reagents gives nitrogen on reacting with ethylamine?

A) Benzoyl chloride

B) Acetyl chloride

C) Nitrosyi chloride

D) Carbon disulphide

• question_answer113) Which of the following are correct match?

A) ${{(C{{H}_{3}})}_{2}}C=C{{H}_{2}}-three\,\,C$ atom $s{{p}^{2-}}$ hybrid

B) $HC\equiv C-CH=C{{H}_{2}}$all the four C atom $s{{p}^{3}}$ hybrid

C) ${{(C{{H}_{3}})}_{4}}$ all C atom $s{{p}^{3}}$ hybrid

D) ${{C}_{6}}{{H}_{6}}$(benzene) all C atoms $s{{p}^{2}}$hybrid

• question_answer114) On the ionization the complex $CoC{{l}_{3}}.3N{{H}_{3}}$ produce:

A) one $C{{l}^{-}}$ ion

B) two $C{{l}^{-}}$ ion

C) any not $C{{l}^{-}}$ ion

D) three $C{{l}^{-}}$ ion

• question_answer115) Given as: $HF+{{H}_{2}}O\xrightarrow{ka}{{H}_{3}}{{O}^{+}}+{{F}^{-}}$ ${{F}^{-}}+{{H}_{2}}O\xrightarrow{{{k}_{b}}}HF+O{{H}^{-}}$ Which relation is correct in the following?

A) ${{K}_{b}}=K\omega$

B) ${{K}_{b}}=1/K\omega$

C) ${{K}_{a}}\times {{K}_{b}}={{K}_{\omega }}$

D) $Ka/{{K}_{b}}=K\omega$

• question_answer116) The solubility products of two sparingly soluble electrolytes AB and BC are $1\times {{10}^{-8}}$ and $1\times {{10}^{-10}}$ respectively. Which of the following statement is correct?

A) The solubility cannot be compared from these data.

B) Solubility of AB is 10 times more than that of BC.

C) Solubility of BC is 100 times more than that of AB.

D) Solubility of AB is 100 times more than that of BC.

• question_answer117) The density of ice is less than that of water because:

A) H bonds are not present in ice

B) water is a polar solvent

C) ice has clusters of molecules and its structure is three dimensional

D) ice floats on water

• question_answer118) Which of the following show the chain isomerism?

A) $C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C{{H}_{3}}$

B) $C{{H}_{3}}-C{{H}_{2}}-OH$

C) $C{{H}_{2}}=CH-C{{H}_{2}}-OH$

D) $C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-Cl$

• question_answer119) Which of the following is not a correct match?

A) $C{{H}_{3}}CHO+{{I}_{2}}+NaOH\xrightarrow{{}}$a yellow precipitate

B) $CHC{{l}_{3}}+HN{{O}_{3}}\to$a war gas

C) ${{C}_{2}}{{H}_{5}}OH-CaOC{{l}_{2}}\to$an anaesthetic

D) $CHC{{l}_{3}}+C{{H}_{3}}-\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\to$ a solvent

• question_answer120) Which of these differ in the hybridisation?

A) $HgC{{l}_{2}}$,

B) $ZnC{{l}_{2}}$

C) ${{C}_{2}}{{H}_{2}}$

D) $C{{F}_{2}}C{{l}_{2}}$

• question_answer121) Match list-I with list-II and select the correct set form the sets given below:

 List-I List-II (A) $N{{H}_{2}}CONHN{{O}_{2}}$ (X) Diphenyl urea (B) $N{{H}_{2}}CONHCON{{H}_{2}}$ (Y) Nitro urea (C) $N{{H}_{2}}CONHN{{H}_{2}}$ (Z) Semi carbazide (D) ${{({{C}_{6}}{{H}_{5}}NH)}_{2}}CO$ (X)Biuret

A) A-Y B-X C-Z D-X

B) A-X B-Y C-Z D-X

C) A-X B-Z C-Y D-X

D) A-X B-Y C-X D-Z

• question_answer122) The solubility product of $BaS{{O}_{4}}$is$1\times {{10}^{-12}}$. What will be the concentration of barium ions in its saturation solution?

A) $1\times {{10}^{6}}$

B) $1\times {{10}^{-6}}$

C) $1\times {{10}^{12}}$

D) $1\times {{10}^{-12}}$

• question_answer123) For an equilibrium reaction, ${{H}_{2}}+{{I}_{2}}2HI$ the value of $Kc=49$at a ${{444}^{o}}C$ temperature. For the equilibrium reaction, $HI\frac{1}{2}{{H}_{2}}+\frac{1}{2}{{I}_{2}}$the value of ${{K}_{c}}$ at this temperature is:

A) $49$

B) $0.143$

C) $Erors\,0.02$

D) $7$

• question_answer124) The solubility $C{{a}_{3}}{{(P{{O}_{4}})}_{2}}$ is s mole. What is the solubility product of $C{{a}_{3}}{{(P{{O}_{4}})}_{2}}$?

A) $8{{s}^{3}}$

B) $9{{s}^{2}}$

C) $108{{s}^{5}}$

D) $72{{s}^{2}}$

• question_answer125) In which of the following pairs of oxidation states of sulphur and chromium are same?

A) $S{{O}_{2}},Cr{{O}_{4}}^{-2}$

B) $S{{O}_{2}},Cr{{O}_{7}}^{-2}$

C) $S{{O}_{3}},Cr{{O}_{4}}^{-2}$

D) $S{{O}_{3}}^{-2},Cr{{O}_{4}}^{-2}$

• question_answer126) Fused sodium chloride can conduct electricity because of:

A) free ions

B) free molecules

C) free electrons

D) free atoms

• question_answer127) $5moles$of sulphur bum in oxygen. What does found the quantity of$S{{O}_{2}}$?

A) $640g$

B) $80g$

C) $160g$

D) $320g$

• question_answer128) If the density of silver is $10.8g\text{ }c{{m}^{-8}}$then which of the following volume of an atom of silver?

A) $1.66\times {{10}^{-23}}c{{m}^{3}}$

B) $1.66\times {{10}^{-20}}c{{m}^{3}}$

C) $1.66\times {{10}^{-22}}c{{m}^{3}}$

D) $1.66\times {{10}^{-18}}c{{m}^{3}}$

• question_answer129) Which of the following compound have 1 oxidation number of chlorine?

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

B) $ICl$

C) $HCl{{O}_{4}}$

D) $HCl$

• question_answer130) $Starch\xrightarrow{A}maltose\xrightarrow{B}\text{glucose}$$\xrightarrow{C}ethyl\,alcohol$. In this reaction sequence A, B and C are respectively:

A) zymase, maltase, invertase

B) diastose, maltase, zymase

C) invertase, zymase, maltase

D) invertase, maltase, zymase

• question_answer131) In reaction equilibrium: ${{N}_{3}}+3{{H}_{2}}\xrightarrow{{}}2N{{H}_{3}}+22\text{ }kcal$ the highest yield of ammonia is favoured by:

A) increase in temperature

B) decrease in pressure

C) increase in pressure

• question_answer132) The pair of iso-electronic species in the following is:

A) $N{{O}_{3}}^{-}\text{, }HC{{O}_{3}}$

B) ${{N}_{2}},CO$

C) $N{{O}_{3}}^{-},C{{O}_{3}}^{-2}$

D) all of the above

• question_answer133) Which of the following is not a correct match? (1) Methane nitrile $C{{H}_{3}}CN$ (2) Iso butyric acid ${{(C{{H}_{3}})}_{3}}C-COOH$ (3) Crotonic acid $C{{H}_{3}}-CH=CH-COOH$ (4) Acetonitrile $C{{H}_{3}}-C\equiv N$

A) $1,4$

B) $2,3$

C) $1,3$

D) $2,4$

• question_answer134) Which of the following test gives blue colour with s-butyl alcohol:

A) By iodoform test

B) By Victor Mayors test

C) By chloroform test

D) None

• question_answer135) On which of the following addition of the Grignard reagent:

A)

B) $-C\equiv N$

C)

D) all of the above

• question_answer136) Which of the following is not a correct match?

A) Rock salt- $NaCl$

B) Food soda -$N{{a}_{2}}C{{O}_{3}}.10{{H}_{2}}O$

C) Soda ash - $N{{a}_{2}}C{{O}_{3}}$

D) Caustic soda - $NaOH$

• question_answer137) The number of isomers of the compound of molecular formula ${{C}_{2}}{{H}_{5}}B{{r}_{2}}$ is:

A) $3$

B) $4$

C) $2$

D) $5$

• question_answer138) The primary amine can be easily tested by its reaction with the following:

A) alkyl chloride

B) chloride

C) acetyl chloride

D) chloroform and base

• question_answer139) The melting point of $SnC{{l}_{2}}$is less than that of $SnC{{l}_{4}}$. The reason is:

A) higher positive charge on $S{{n}^{4+}}$

B) higher ionic potential of $S{{n}^{4+}}$

C) tetrahedral structure of $SnC{{l}_{4}}$

D) size of $S{{n}^{4+}}$ is smaller than that of $S{{n}^{2+}}$

• question_answer140) The LU.P.A.C. name of $\underset{CH=CH-COOH}{\overset{C{{H}_{2}}-COOH}{\mathop{|}}}\,$is:

A) 2-pentene-1, 5 di oic acid

B) 4-pentene-1, 5 di oic acid

C) both (a) and (b)

D) None

• question_answer141) Nitroso amine $+$ phenol $\xrightarrow{conc.\,{{H}_{2}}S{{O}_{4}}}$red or brown colour $\xrightarrow{base}$ blue or violet. The name of this reaction is:

A) Lucas test

B) Coupling reaction

C) Ledrer- Mannase reaction

D) Libermann nitroso reaction

• question_answer142) Which of the following reagent used in the difference between methanol and ethanol?

A) ${{I}_{2}}+NaOH$

B) Schiff reagent

C) Cromic acid

D) Lucas test

• question_answer143) Which of the element has very low ionization potential:

A) $F$

B) $H$

C) $Cl$

D) $Fr$

• question_answer144) Ethene and ethyne can be distinguished by the reaction with:

A) anhydrous $ZnC{{l}_{2}}+$ cone. ${{H}_{2}}S{{O}_{4}}$

B) dilute alkaline $KMn{{O}_{4}}$

C) iodine and $NaOH$

D) ammonical cuprous chloride

• question_answer145) The $_{p}{{K}_{a}}$ values for the dissociation of carbonic acid, acetic acid and formic acid are respectively $6.3,4.74,$ and $3.62$. Which of the following statement is wrong?

A) Acetic acid is weakest in all three

B) Formic acid is strongest in all the three

C) Carbonic acid is strongest in all the three

D) Acetic acid is weaker than carbonic acid

• question_answer146) How many $\sigma$ bond and $\pi$ bond has this structures? $C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-\underset{CH-C{{H}_{3}}}{\mathop{\underset{||}{\mathop{C}}\,}}\,H$

A) $5\sigma ,\,1\pi$

B) $17\sigma ,\,1\sigma$

C) $17\sigma ,\,1\pi$

D) $1\sigma ,\,5\pi$

• question_answer147) In which acid has not $-COOH$group?

A) Lactic acid

B) Succinic acid

C) Carbonic acid

D) Barbituric acid

• question_answer148) The I.U.RA.C. name of acetone is:

A) 2-propanon

B) 2-propanal

C) 2-butanon

D) 2-propanol

• question_answer149) Which of the following statements is correct?

A) Electron emits energy in the transition from higher energy level to lower energy level

B) Electron emits energy spontaneously in its ground state.

C) Electron cannot fall in the nucleus from third energy level

D) Electron absorbs energy in the transition from lower energy level to higher energy level

• question_answer150) Which of the following compound gives halo form reaction?

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

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

C) Both above

D) None of these

• question_answer151) Which of the following expressions is not applicable on the hydrolysis equilibrium? $N{{H}_{4}}^{+}+{{H}_{2}}ON{{H}_{4}}OH+{{H}^{+}}$

A) ${{K}_{h}}=\frac{{{K}_{\omega }}}{{{K}_{b}}}$

B) $[{{H}^{+}}]=\sqrt{\frac{{{K}_{\omega }}\times C}{{{K}_{b}}}}$

C) $h=\sqrt{\frac{{{K}_{\omega }}}{{{K}_{b}}\times C}}$

D) $pH=\frac{1}{2}{{\,}_{p}}{{K}_{a}}(N{{H}_{4}}OH)$

• question_answer152) A carbonyl compound (X) reacts with $HCN$ to give a compound (V). The product (Z) obtained by the hydrolysis of compound (Y) shows optical isomerism and also gives iodoform test. Compound (X)is:

A) $HCHO$

B) $C{{H}_{3}}COC{{H}_{3}}$

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

D) none of these

• question_answer153) Which of the following is not correct?

A) $s{{p}^{2}}$-trigonal planar

B) $s{{p}^{3}}$-trigonal bipyramidal

C) $s{{p}^{3}}$-trigonal

D) $s{{p}^{3}}{{d}^{2}}$

• question_answer154) The indicator for the iodine titration is:

A) phenophthaline

B) galactose

C) cellulose

D) starch

• question_answer155) $3A+B2C$ what is K for this system:

A) $\frac{[C]}{[3A][B]}$

B) $\frac{[C]}{{{[A]}^{3}}\times [B]}$

C) $\frac{{{[C]}^{2}}}{{{[A]}^{3}}\times [B]}$

D) $\frac{[3A]\times [B]}{[2C]}$

• question_answer156) Which of the following reaction generally shown by alkenes and alkynes?

D) Electrophilic substitution

• question_answer157) Which of the following sets is correct?

A) $n=3,l=2,\,m=-1,\,s=-\frac{1}{2}$

B) $n=3,l=2,\,m=-3,\,s=+\frac{1}{2}$

C) $n=3,l=3,\,m=0,\,s=+\frac{1}{2}$

D) $n=3,l=3,\,m=-3,\,s=-\frac{1}{2}$

• question_answer158) The product of the reaction of hydrazine with ethyl acetate:

A) $C{{H}_{3}}COONHN{{H}_{2}}$

B) $C{{H}_{3}}COHN-NHCOC{{H}_{3}}$

C) $C{{H}_{3}}CONHN{{H}_{2}}$

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

• question_answer159) The thin layer of which of the following is deposited in the galvanized iron?

B) Zinc

C) Tin

D) Aluminium

• question_answer160) When the ketone react with hydrogen at ${{160}^{o}}C$and formed alkane this reaction is known as:

A) Witting reaction

B) Wolff Kishner reaction

C) Jijal method

D) Wurtz-fitting reaction

• question_answer161) The energy of sub-shells increases with the:

A) increase of spin quantum number

B) increase of azimuthal quantum no.

C) increase of principal quantum no.

D) increase of principal and azimuthal quantum number both

• question_answer162) Which one of the following reaction is different than the others?

A) $Mg\xrightarrow{{}}M{{g}^{++}}+2{{e}^{-}}$

B) $F{{e}^{2+}}\xrightarrow{{}}F{{e}^{3+}}+3{{e}^{-}}$

C) $S+2{{e}^{-}}\xrightarrow{{}}{{S}^{-\,\,-}}$

D) $S{{n}^{4}}+2e\xrightarrow{{}}S{{n}^{2+}}$

• question_answer163) Which of the following shows diagonal relation?

A) Element of first period

B) Element of second period

C) Element of third period

D) None of these

• question_answer164) The I.U.P.A.C name of this compound $\underset{\begin{smallmatrix} | \\ CN \end{smallmatrix}}{\mathop{C}}\,{{H}_{2}}-\underset{\begin{smallmatrix} | \\ CN \end{smallmatrix}}{\mathop{C}}\,H-\underset{\begin{smallmatrix} | \\ CN \end{smallmatrix}}{\mathop{C}}\,{{H}_{2}}$

A) 1, 2, 3 tricyano propane

B) 3-cyano-l, 5 pentane dinitrile

C) 1, 2, 3-cyano propane

D) 1, 2, 3-propane trinitrite

• question_answer165) Which of the following compounds is formed by the reaction of propyne with ${{H}_{2}}S{{O}_{4}}$ and mercuric ions?

A) Propanal

B) 2-propanal

C) Propanone

D) Propane diol

• question_answer166) Which of the following statements is false?

A) 1-alkynes do not show geometrical isomerism

B) $\alpha$-butylene and isopropyl alcohol are not position isomers

C) Alcohols and ethers with same molecular weight are functional group isomers

D) $\alpha$-butylene is a chain isomers of isobutylene

• question_answer167) Acetaldehyde is obtained by the ozonolysis of the following alkene:

A) propene

B) isobutylene

C) 2-butene

D) 1-butene

• question_answer168) Metal exists in the following form after calcination:

A) as sulphide

B) as carbonate

C) hydrated oxide

D) an oxide

• question_answer169) Decreasing order of an electron affinity of halogen is:

A) $Cl>Br>F>I~$

B) $Cl>F>Br>I$

C) $Br>Cl>F>I~$

D) $F>Cl>Br>I$

• question_answer170) The reaction of ether with cold $HI$ is called:

A) Zerewiriknoff method

B) Ziesels method

C) Williamsons synthesis

D) None of these

• question_answer171) In the above reaction the intermediate species are:

A) ${{C}_{6}}{{H}_{5}}{{O}^{-}}$ and : $CHCl$

B) ${{C}_{6}}{{H}_{5}}{{O}^{-}}$-and: $C{{H}_{2}}$

C) ${{C}_{6}}{{H}_{5}}{{O}^{-}}$ and: $CC{{l}_{3}}$

D) phenoxide ion and dichloro carbine

• question_answer172) The gas produced by the reaction acetamide with aqueous alkali is:

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

B) $NO$

C) ${{N}_{2}}$

D) $N{{H}_{3}}$

• question_answer173) Methyl orange shows the following colour in alkaline medium:

A) yellow

B) colourless

C) orange

D) red

• question_answer174) All are polymer except:

A) teflon

B) orlon

C) nylon

D) phorone

• question_answer175) The correct sequence of the stability of carbocation is:

A) ${{3}^{o}}<{{2}^{o}}>1{}^\circ >C{{H}_{3}}$

B) ${{3}^{o}}<\text{ }{{2}^{o}}\text{ }{{1}^{o}}<C{{H}_{3}}$

C) ${{3}^{o}}<{{2}^{o}}>{{1}^{o}}<C{{H}_{3}}$

D) ${{3}^{o}}>{{2}^{o}}>{{1}^{o}}>C{{H}_{3}}$

• question_answer176) The degree of ionization in weak electrolyte is directly proportional to the following:

A) volume (V)

B) concentration (C)

C) both above

D) none of these

• question_answer177) The density of Na greater than $K$. The reason is:

A) there are eight electrons in third shell of $K$

B) the size of $Na$ is shorter than $K$

C) ionization potential of $Na$ is lesser than $K$

D) Atomic wt. of $K$ is more than of $Na$

A) 8-10% acetic acid

B) 6-10% ethyl alcohol

C) 10% formic acid

D) glacial acetic acid

• question_answer179) Which of following product obtained by the reaction between nitrobenzene and $Zn/N{{H}_{4}}C{{l}^{-}}$?

A) Ammo phenol

B) Nitroso benzene

C) Phenyl hydroxyl amine

D) Azobenzene

• question_answer180) Water gas is a mixture of:

A) $1mole\,\,CO+1mole\,{{H}_{2}}$

B) $1\text{ }mole\text{ }CO+\text{ }1\text{ }mole$water vapour

C) $1\,\,moleCO+1\,mole\,{{H}_{2}}$

D) $2\,mole\,CO+1mole\,{{H}_{2}}$

• question_answer181) $Ar-CON{{H}_{2}}\xrightarrow{B{{r}_{2}}+KOH}ArN{{H}_{2}}$ The above reaction is:

A) Hoffmann-martius rearrangement

B) Haffmann carbylamine reaction

C) Haffmann mustard oil reaction

D) Haffmann bromide reaction

• question_answer182) $Aniline\xrightarrow[{{150}^{o}}C]{conc.\,\,{{H}_{2}}S{{O}_{4}}}\text{ }A$. The product A is:

A) aniline sulphate

B) sulphonic acid

C) sulphanilic acid

D) o-amino benzene sulphonic acid

• question_answer183) $C{{H}_{3}}MgBr+A\xrightarrow{{}}B\xrightarrow{{{H}_{2}}O/{{H}^{+}}}$ $C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH$ In the above reaction sequence A is:

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

B) ${{(C{{H}_{3}})}_{2}}CO$

C) ${{(C{{H}_{2}})}_{2}}O$

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

• question_answer184) If pH = 8 then what is the value of $[{{H}^{+}}]$ and which type solution found:

A) ${{10}^{-8}}$basic

B) $0.00001$basic

C) ${{10}^{-8}}$acidic

D) $0.00001$acidic

• question_answer185) The set of transition ions which have same magnetic moment is:

A) $C{{u}^{+2}},\,F{{e}^{+2}}$

B) $M{{n}^{+2}},T{{i}^{+2}}$

C) $M{{n}^{+2}},F{{e}^{+3}}$

D) $C{{u}^{+2}},F{{e}^{+3}}$

• question_answer186) The wavelength of all the spectral lines of H atom can be given by the following expression:

A) $\frac{1}{\lambda }=R\left( \frac{1}{{{n}_{1}}^{2}}-\frac{1}{{{n}_{2}}^{2}} \right)$

B) $\frac{1}{\lambda }=R\left( \frac{1}{{{n}_{2}}^{2}}-\frac{1}{{{n}_{1}}^{2}} \right)$

C) $\frac{1}{\lambda }=R{{\left( \frac{1}{{{n}_{1}}}-\frac{1}{{{n}_{2}}} \right)}^{2}}$

D) $\frac{1}{\lambda }=R{{\left( \frac{1}{{{n}_{2}}}-\frac{1}{{{n}_{1}}} \right)}^{2}}$

• question_answer187) Which is the main constituent of Nilam?

A) $A{{l}_{2}}{{O}_{3}}$

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

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

D) $MnO$

• question_answer188) The formula of potash alum is:

A) ${{K}_{2}}S{{O}_{4}}.A{{l}_{2}}{{(S{{O}_{4}})}_{3}}.24{{H}_{2}}O$

B) ${{K}_{3}}[CO{{(N{{O}_{2}})}_{6}}]$

C) ${{K}_{2}}S{{O}_{4}}.C{{r}_{2}}{{(S{{O}_{4}})}_{3}}.24{{H}_{2}}O$

D) $KH{{F}_{2}}$

• question_answer189) The relation between solubility and solubility product is:

A) solubility product $={{(solubility)}^{2}}$

B) solubility product = $=\sqrt{solubility}$

C) solubility product $=1/solubility$

D) solubility product = solubility

• question_answer190) The oxidation number of nitrogen in $N{{H}_{4}}$and $N{{O}_{3}}$is:

A) $+3$

B) $-3$ and $+5$

C) $+5$

D) $+3$and $-5$

• question_answer191) In ail equilibrium reaction $A\xrightarrow{{}}2B+C$the degree of dissociation of A is an initially one mole of a is taken then number of total moles at equilibrium:

A) $1-2a$

B) $1-a$

C) $1+2a$

D) $1+a$

• question_answer192) Benzene reacts with chlorine in the presence of UV-light to give:

A) 1, 3, 5 trichlorobenzene

B) chlorobenzene

C) hexachloro cyclohexane

D) hexa chlorobenzene

• question_answer193) Which of the following is not a correct match?

A) Fools gold $(Fe{{S}_{2}})$

B) Philosphers wool $ZnO$

C) Calomel $H{{g}_{2}}C{{l}_{2}}$

D) Lunar caustic $AgCl$

• question_answer194) In which of the following the dipole moment is zero?

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

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

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

D) $N{{H}_{3}}$

• question_answer195) The electronic configuration of $Na$ is$2,8,1$. How many proton and electron of it?

A) $11,11$

B) $2,3$

C) $5,2$

D) $3,5$

• question_answer196) The uses of carbon tetra chloride is:

A) industrial solvent and fire extinguisher

B) Coolent and fire extinguisher

C) Anaesthetic and Antiseptics

D) Antiseptics and laboratory solvent

• question_answer197) Which of the following is colourless and smellness?

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

B) $C{{H}_{3}}NC$

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

D) $C{{F}_{2}}C{{l}_{2}}$

• question_answer198) $X+Y\xrightarrow{\Delta }HCOOH\xrightarrow{{{H}_{2}}S{{O}_{4}}/\Delta },L+M$ X, V, L, M are respectively:

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

B) $CO,{{H}_{2}}O,CO,{{H}_{2}}O$

C) $CO,{{H}_{2}}O,C{{O}_{2}},{{H}_{2}}O$

D) $C{{O}_{2}},{{H}_{2}}O,CO,{{H}_{2}}O$

• question_answer199) $NaCl$ is a compound:

A) covalent

B) co-ordinate valent

C) electro valent

D) none of these

• question_answer200) The Bronsted base is: In this reaction, $H{{C}_{2}}{{O}_{4}}+P{{O}_{4}}^{3-}HP{{O}_{4}}^{2-}+{{C}_{2}}{{O}_{4}}^{2-}$

A) $H{{C}_{2}}{{O}_{4}}^{-},HP{{O}_{4}}^{2-}$

B) $P{{O}_{4}}^{3-},HP{{O}_{4}}^{2-}$

C) $P{{O}_{4}}^{3-},{{C}_{2}}{{O}_{4}}^{2-}$

D) $H{{C}_{2}}{{O}_{4}}^{-},{{C}_{2}}{{O}_{4}}^{2-}$

• question_answer201) The association between Hydra and too zoo chlorelles are:

A) commensalism

B) symbiosis

C) parasitism

D) saprophytic

• question_answer202) Which one is Devil fish?

A) Rhinobates

B) Octopus

C) Sepia

D) Giant squid

• question_answer203) Pernicious anaemia is caused by deficiency of:

A) folic acid

B) retinol

C) cyanocobalamine

D) biotin

A) centrosome

B) mitochondria

C) ribosome

D) E.R.

• question_answer205) Liver of Rabbit secretes:

A) cholesterol

B) bile pigment

C) bile salt

D) all of the above

• question_answer206) Middle ear protects the internal ear from. high sound waves :

A) by the reflex action of tenser tympani and stapes muscle

B) by pulling inside malleus and tympanic membrane

C) by pulling outside the stapes and basal plates

D) all of the above

• question_answer207) Normally creatine is absent in urine of:

A) pregnant female

B) healthy man

C) starving man

D) lactating mothers

• question_answer208) What is the function of hydrostatic skeleton?

A) Locomotion

B) Climbing

C) Looping

D) Somersalt

• question_answer209) E.R. is non-continuous with:

A) nuclear membrane

B) plasm a lemma

C) golgibody

D) mitochondria

• question_answer210) A statement which is false for eyes in resting state?

A) Eyes are focused at placed objects

B) Hyes are focused at nearly objects

C) Cilliary muscles are relaxed

D) Suspensory ligaments are connected

• question_answer211) Which one is poisonous Lizard?

A) Flying Lizard

B) Granular Lizard

C) Sand Lizard

D) Bedod Lizard

• question_answer212) Concentration and pressure of CO in the alveoli of lungs in human beings is :

A) 1.0% and 0.7 mm Hg

B) 0.4% and 0.4 mm Hg

C) 2 to 7% and 0.4 mm Hg

D) 0.3 and 0.4 mm Hg

• question_answer213) At which cell stage a blastula can be implanted in uterus in test tube baby development?

A) 16 cell

B) 64 cell

C) 128 cell

D) 32 cell

• question_answer214) Depression in Hydra is responsible for:

A) death

B) rejuvenation

C) budding

D) none of these

• question_answer215) In RNA sample which one is found:

A) A = T and C = G

B) A = U and C = G

C) Purine = pyrimidine

D) A # U # C # G

• question_answer216) Which character of inorganic catalyst does not resemble enzymes ?

A) catalytic property

B) temperature specicity

C) colloidal state

D) reversible reaction

• question_answer217) Which statement is incorrect for Hydra?

A) Nematocyst present

B) It is of phylum Cnideria

C) Physiological division of labour present

D) They arc hermaphrodite

• question_answer218) One molecule of glucose releases energy :

A) 68600 kcal

B) 686000 kcal

C) 6860000 kcal

D) 786000 kcal

• question_answer219) Which disorder is more common due to protein deficiency?

A) Paralysis

B) Rickets

C) Osteomalacia

D) Kwashiorkor

• question_answer220) Which of the following pairs is wrong?

A) Vitamin D-fats

B) Pectin-protein

C) Heparin-polysaccharides

D) Chi tin-carbohydrate

• question_answer221) Which hormone acts opposite to the parathormone?

A) Corticosteron

B) Thyrocalcitonin

C) Thyroxine

D) Mineral ocorticoids

• question_answer222) In an egg of Frog is divided in a way that one part has animal hemisphere and another part is deficient in that then:

A) only animal hemisphere region forms embryo

B) both the sites form embryo

C) embryo is not formed from any region

D) animal hemisphere deficient region forms the embryo

• question_answer223) Which of the following is not a part of corpus callosum?

A) Fornix

B) Crura cerebri

C) Zenue

D) Splengion

• question_answer224) What is not a function of para sympathetic nervous system?

A) Dilation of eye pupil

B) To decrease the neart beat

C) To dilate the blood vessel

D) To relax anal muscles

• question_answer225) Basic unit of classification is:

A) series

B) genus

C) class

D) species

• question_answer226) Sequential and regular conversion of zygote into ail animal is known as:

A) transformation

B) genetic characters

C) embryonic induction

D) stimulation

• question_answer227) Role of chromophill cells of Earthworm pharynx is:

A) fat storage

B) helps in excretion

C) cocoon formation

D) saliva secretion

• question_answer228) Which muscle pulls the leg in Rabbit?

A) extensor muscle

B) abductor muscle

D) flexor muscle

A) 1-2 hrs.

B) 3-4 hrs

C) 12 days

D) 2-4 days

• question_answer230) Study the following cells of Hydra? (1) nerve cells (2) sensory cells (3) nematocyst (4) gastrodermal cells

A) only 2

B) only 1

C) 1 and 2

D) 3 and 4

• question_answer231) The area where brown fats are maximum in infant neck will have more :

A) Golgi bodies

B) Mitochondria

C) Chromophill

D) Smooth E.R.

• question_answer232) The average life span of Ascnris in host body is:

A) 1 month

B) 6 to 12 weeks

C) 6 to 12 months

D) 4 to 6 months

• question_answer233) What occurs in gastrulation ?

A) Division of zygote

B) Formation of blastocoel

C) Epiboly and emboly takes place

D) Disappearance of archenteron

• question_answer234) Which endocrine gland called..., secretes calcitonin hormone which regulates the $C{{a}^{++}}$ in blood by:

A) thyroid-reduction in $C{{a}^{++}}$ concentration

B) thyroid-increase in $C{{a}^{++}}$ concentration

C) parathyroid-increases in $C{{a}^{++}}$concentration

D) parathyroid-reduction in $C{{a}^{++}}$ concentration

• question_answer235) Which one is not a character of Prototheria ?

A) Mammary glands devoid of teats

B) Presence of teeth in embryo

C) Testes in scrotum

• question_answer236) Which of the following is not produced from mesoderm?

A) Blood

C) Heart

• question_answer237) Secretion of ilium mucose which stimulate the pancrease and liver:

A) enterogastrone and enterokinin

B) secretin and enterogastrone

C) cholecystokinin and enterokinin

D) all of these

• question_answer238) Sperms get fertilization ability when they come in contact with vaginal fluid reactions is:

A) acrosome reaction

B) cortical reaction

C) capacitation

D) fertilizing and antifertilizing reaction

• question_answer239) Which statement is not true for Ascaris?

A) The incidence of Ascaris is more in children

B) Ascaris does not produce toxic substance

C) Upto 5, 000 Ascaris can be recorded in intestine

D) Invenitics prove to be more harmful than the adults

• question_answer240) Ascaris causes weakness because :

A) parasites ingest protein component of the food

B) parasites products toxic substances hindering enzyme activity

C) carbohydrate digestion is affected due to toxic substances produced

D) none of the above

• question_answer241) Which of the following one is not a snake?

A) Rattle snake

B) Rat snake

C) Glass snake

D) Blind snake

• question_answer242) Lubb-dup sound in heart arises due to:

A) opening of semilunar, bicuspid and tricuspid valves

B) closure of semilunar, bicuspid and tricuspid valves

C) opening of tricuspid and bicuspid valves

D) closure of bicuspid and tricuspid valves

• question_answer243) Which action is not performed by HCL during digestion?

A) Destruction of bacteria

B) Continuation of salivary amylase action

C) Protection from food population

D) Bone dissolvement

• question_answer244) What is correct for mitochondria?

A) They can replicate themselves

B) They can increase shape and size

C) Both a and b are correct

D) Both a and b are incorrect

• question_answer245) Which substance is generally absent from aquous humor?

A) Ascorbic acid

B) Hyaloronic acid

C) Glucose

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

• question_answer246) Which of the following pair is in correct?

A) Pheretima-South India and Srilanka

B) Lumbricus-Europe and North America

C) Dravida and Magascolex - South India

D) Eutyphaeus - South America

• question_answer247) In Ascaris infective and harmful larval stages are:

A) first fourth larval stage

B) third and fourth stage

C) first and third larval stage

D) second and third larval stage

• question_answer248) In which form maximum $C{{O}_{2}}$ is carried by blood:

A) in the form of bicarbonates

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

C) carbamino haemoglobin

D) oxyhaemoglobin

• question_answer249) The cause of black water fever is:

A) Plasmodium vivnx

B) Plasmodium falciparum

C) Plasmodium ovale

D) Plasmodium malariae

• question_answer250) Bilayer of lipid in plasma membrane reduces expulsion of ${{K}^{+}}$ or $M{{g}^{++}}$ because these are;

A) important in cytoplasmic concentration

B) important for hormone action

C) because of strong attraction from inner ions

D) important to disturb balance in ECF

• question_answer251) Which of the following pair shows correctly in which substance is completely oxidized and amount of energy released?

A) Sucrose- 78 ATP, frutose 6- phosphate - 40 ATP, acetyl CoA -12 ATP

B) Sucrose - 72 ATP, fructose 39 ATP, acetyl Co A-10 ATP

C) Sucrose - 76 ATP, frutose 6 - phosphate 40 ATP, acetyl CoA -10 ATP

D) Sucrose - 76 ATP, fructose 6 - phosphate - 39 ATP, acetyl CoA - 10 ATP

• question_answer252) In mammalian perilymph, following is more than endolymph:

A) ${{C}^{++}}$

B) ${{K}^{+}}$

C) $F{{e}^{++}}$

D) $N{{a}^{++}}$

• question_answer253) Which one is odd?

A) Sea squirt

B) Sea cucumber

C) Sea urchin

D) Sea star

• question_answer254) In both plant cell and animal cell flagella are similar in:

A) both have membrane over it

B) both have microtubule 2 + 9 arrangement

C) both are flexible

D) microtubules are 9 + 2

• question_answer255) Incubation period of Plasmodium falciparum is:

A) 10 days

B) 12 days

C) 16 days

D) 28 days

• question_answer256) Regeneration in Hiydra can occurs in the part with :

A) gastrodermis

B) mesogloea

C) epidermis

D) 1.6 mm or more

• question_answer257) State bird of Rajasthan is:

A) Passer domesticus

B) Columba livia

C) Cariotis migriseps

D) Pavo cristatus

• question_answer258) One DNA helix have :

A) 10 nucleotides and $3.4\,\overset{\text{o}}{\mathop{\text{A}}}\,$ in length

B) 20 nucleotides and $3.4\,\overset{\text{o}}{\mathop{\text{A}}}\,$ in length

C) 20 nucleotides and $34\,\overset{\text{o}}{\mathop{\text{A}}}\,$ in length

D) 10 nucleotides and $34\,\overset{\text{o}}{\mathop{\text{A}}}\,$ in length

• question_answer259) Which statement is wrong for enzymes ?

A) Specific in their reaction

B) Do not disturb equilibrium

C) All are of protein

D) They change the direction of reaction

• question_answer260) Which pair is wrong?

A) $N{{a}^{+}}$- nerve impulse

B) $C{{o}^{++}}$- for growth lungs and skin

C) $C{{o}^{++}}$-bones and teeth formation and muscle contraction

D) $Z{{n}^{++}}$-essential component of protoplasm

• question_answer261) Copulation of Earthworm lasts for:

A) 5-6 hrs

B) 15 min

C) 1 hrs

D) 2-3 hrs

• question_answer262) Main characteristics of Cnidaria is:

A) diploblastic, radial symmetry and cnidoblast cells

B) triploblastic, radial symmetry and cnidoblast cells

C) diploblastic, bilateral symmetry and cnidoblast cells

D) triploblastic, bilaterally symmetrical and cnidoblast cells

• question_answer263) Metamerically segmented body means:

A) body is divided externally on the basis of shape and colour

B) body is divided into head thorax, tail

C) repetation of segments

D) repetation of organ sequence in body

• question_answer264) Which is the longest muscles which brings thigh near mid line?

A) Chorocobranchiasis

B) Biceps femories

C) Castronimus

D) Sartorius

• question_answer265) Where does ghost cells destroyed in Plasmodium infection in humans?

A) Liver of man

B) Crop of mosquito

C) R.B.C. of man

D) Spleen of man

• question_answer266) In 1994 Nobel prize for the discovery of protein in cell membrane was awarded to:

A) Fischer and Krebs

B) Martin Loother and Nelson

C) Stuart and Bital

D) Gilman and Rodkil

• question_answer267) Mesogloea of Hydra is chemically:

A) mucoprotein

B) lipid

C) protein

D) mucopolysaccharide

• question_answer268) What conditions are optimum for activation of gametogenesis in Plasmodiuni in stomach/alimentary canal of female Anopheles?

A) High temperature

B) Presence of enzymes

C) Less temperature

D) Blood in stomach

• question_answer269) Which one is main barrier in transportation in mitochondria that maintains composition of matrix?

A) Inner membrane

B) Outer membrane

C) Perimitochondrial fluid

D) All of these

• question_answer270) Which one is not a correct pair?

A) Cell-Schwann

B) Protoplasm-Huxley

C) Chromosome-Mendel

D) Germplasm-Weisman

• question_answer271) Ambystoma larva of Tiger Salamander shows neoteny, because:

A) fresh water becomes available due to rains

B) excess of mineral ions and ${{l}_{2}}$

C) less ${{l}_{2}}$ and ${{H}_{2}}O$

D) hormone secretion starts from glands

• question_answer272) If one incisors of Rabbit is replaced then:

A) digestion will stop

B) rabbit will die after sometimes

C) digestion is troubled

D) nothing will happen

• question_answer273) A structure absent in male reproductive system of Ascaris:

A) testes

B) spermatic duct

C) seminal vesicle

D) ejaculatory duct

A) little fish

B) ship worm

C) devil fish

D) giant squid

• question_answer275) Which of the following pair is wrong?

A) Hypothalamus-thermoregulation

B) Medulla oblongata-control of in voluntay activities

C) Cerebellum-balance

D) Diencephalon-hunger and statiety center

• question_answer276) State animal of Rajasthan is:

A) Camelus

B) Ardeotis

C) Corvus

D) Gazella

• question_answer277) Externally male and female Cockroach can be differentiated by:

A) wingless condition

B) length of abdomen

C) length of maxillae

D) conglobate gland

• question_answer278) Functionally heart of Cockroach is:

A) neurogenic

B) agenic

C) epigenic

D) myogenic

• question_answer279) In embryonic stage ammonia is converts to urea by:

A) yolk sac

B) chorion

C) amnion

D) allantois

• question_answer280) Assistance provided during locomotion in Amoeba:

A) rough surface

B) nematocyst

C) tantaclcs

D) tons present in ${{H}_{2}}O$

• question_answer281) Those cells lipid is actively synthesized contains more:

A) nucleus

B) R.E.R.

C) S.E.R.

D) golgi body

• question_answer282) In 1902 Nobel prize was given to:

A) Grassi for observing plasmodium in RBC

B) Laveron for discovering Plasmodium

C) Sir Ronald Ross for observing Plasmodium

D) Golgi for discovering eryhrocytic cycle

• question_answer283) Biological clock is exhibited in Cockroach:

A) in different stages of life cycle

B) in metamorphosis

C) as metabolic changes takes place in 2 hrs

D) in different activies in different season

• question_answer284) For the parasympathetic nervous system (1) acetylcholine is the hormonal secretory product (2) fight and flight is controlled (3) pre-gangolic fibers are long and post gangolic are short (4) pre-gangolic fibers are short and post gangolic are long (5) origin from craniosacral region Find out the true statement:

A) 1, 2, 3, 5

B) 1, 2, 4, 5

C) 1, 4, 5

D) 1, 3, 5

• question_answer285) Malleus, in cus, stapes are modifications of respectively:

• question_answer286) Which of the following group is hermaphrodite?

A) Earthworm, Cockroach and Prawn

B) Earthworm, Leech, Taenia

C) Ascaris, Cockroach, Earthworm

D) Hydra, Ascaris. Taenia

• question_answer287) Vit. D is synthesized in human being with the help of:

A) ergosterol

B) ergocalciferol

C) cholesterol

D) carotene

• question_answer288) Which of the following is true for internal fertilization?

A) Presence of copulatory organs is essential

B) Water is essential (i.e. aquatic habitat is essential)

C) Semination occurs inside the female body

D) Male and female must not come close

• question_answer289) Few scientist state vas deferens as seminal vesicle and seminal vesicle as vas deferens, because;

A) sperms are not stored in seminal vesicle

B) their structure is similar

C) their function is same

D) sperms mature in vas deferens

• question_answer290) Life span of Earthworm is:

A) 1-3 yrs

B) 2-6 yrs

C) 3 1/2 -10 yrs

D) 61/6-15 yrs

• question_answer291) Interstitial epithelium is protected from harmful bacteria by:

A) goblet cells

B) brunners gland

C) peyers patches

D) all of the above

• question_answer292) VIIth cranial nerve enters in a ganglion called:

A) gasserian ganglion

B) geniculate ganglion

C) vagus ganglion

D) cilliac ganglion

• question_answer293) What does not happens when people listen to loud music?

A) cochlear fluid oscillates at high degree

B) receptors of cochlear get degenerate

C) organ of corti react by the tympanic membrane

D) basal membrane vibrate to a large extent

• question_answer294) In saliva of mosquito, following is present during its bite:

A) xyote

B) gametocyte

C) ookinite

D) anticoagulant

• question_answer295) When butter is kept in the air at room temperature then it start bad smelling because:

A) it is saturated

B) it is unsaturated

D) it have large number of it ${{H}_{2}}$ atoms

• question_answer296) According to Heldane effect how oxyhaemoglobin behaves:

A) It act as powerful base so reaction with $C{{O}_{2}}$ reduces

B) It act as strong base so reaction with $C{{O}_{2}}$increase

C) Oxyhaemoglobin act as strong acid so association with $C{{O}_{2}}$ reduces

D) Oxyhaemoglobin act as strong acid so association with $C{{O}_{2}}$ increase

A) dermis

B) malpighian layer

C) epidermal layer

D) subcutaneous layer

A) sperms fertilizes four eggs

B) blastocyst divides into four cells

C) four sperms fertilizes ovum

D) four zygotes are formed

• question_answer299) Which of the statement is correct for vitamin D?

A) It is argosterol

B) It is important for teeth and bone development

C) Deficiency causes chilosis

D) It is a calciferol which controls $C{{a}^{++}}$ and $PO_{4}^{-}$ absorption from intestine

• question_answer300) Which is the characteristic feature of ookinete?

A) It have microtubules.

B) It have more mitochondria and ribosomes

C) It have contractile fibres

D) It is non-motile

• question_answer301) Central dogma was proposed by:

A) Mendel

B) Wastson and Crick

C) Crick

D) Schleiden and Schwann

• question_answer302) Disease caused by fungus is:

A) bronchitis

B) ringworm

C) small pox

D) tuberculosis

A) male

B) female

C) both (a) and (b)

D) none of the above

• question_answer304) Enzymes for autolysis are found in:

A) nucleus

B) mitochondria

C) chloroplast

D) lysosome

• question_answer305) In bacterial cell enzymes for aerobic respiration are found in:

A) ribosome

B) mesosome

C) mitochundria

D) none of these

• question_answer306) Phycology is the study of:

A) fungus

B) algae

C) lichens

D) bryophyte

• question_answer307) The common reaction in aerobic and anaerobic respiration is:

A) fermentation

B) glycolysis

C) Krobs cycle

D) electron transport system

• question_answer308) Connecting link of characters between one generation to another generation is :

A) nucleus

B) nucleic acid

C) chromosome

D) none of these

• question_answer309) Which type of cell division takes place during wound healing;

A) Meiosis

B) Mitosis

C) Amitosis

D) All of the above

• question_answer310) CAM plants ecologically comes under which of the following category?

A) Succulent plants

B) Mangrove plants

C) Halopliytes

D) None of these

• question_answer311) First stable substance of Calvin cycle is:

A) phosphoglyceric acid

B) phosphoglyceraldehyde

C) oxato acetic acid

D) none of the above

• question_answer312) Virus is classified in which of the following class?

A) Akaryota

B) Prokaryota

C) Eukaryota

D) None of the above

• question_answer313) In nucleic acid what is responsible for genetic information?

A) Quantity of nucleic acid

B) Type of nucleic acid

C) Linear sequence of nucleotide

D) Type of nucleotide

• question_answer314) Membraneless cell organelle is:

A) ribosome

B) lysosome

C) mitochondria

D) chloroplast

• question_answer315) Female reproductive organ of Riccia is known as:

A) Oedogonium

B) archegonium

C) carpogonium

D) oosphere

• question_answer316) Casparian strip found in:

A) cortex cells

B) pericycle

C) epidermis

D) endodermis

• question_answer317) The study of organisms with their environment is called:

A) Ecology

B) Cytology

C) Gene ecology

D) None of these

• question_answer318) Botanical name of Chili is:

A) Solanum melongena

B) Lycopercicum esculentum

C) Capsicum annuum

D) None of the above

• question_answer319) The reduction of $C{{O}_{2}}$ occurs in:

A) Calvin cycle

B) Krebs cycle

C) Glycolysis

D) Citric acid cycle

A) virus

B) mycoplasma

C) bacteria

D) none of the above

• question_answer321) In which of the following reserved food material is stored in the form of glycogen?

A) Fungi

B) Algae

C) Virus

D) None of these

• question_answer322) Term ecosystem was proposed by :

A) Tansley

B) Odum

C) HaeckeI

D) Mishra

• question_answer323) The number of hydrogen bonds present between guanine and cytosine are :

A) 2

B) 3

C) 4

D) 5

• question_answer324) Who proposed the histogen theory?

A) Nagelli

B) Schmidt

C) Strassburger

D) Hanstein

• question_answer325) The number of chloroplast in every cell of Ulothrix is:

A) one

B) two

C) three

D) four

• question_answer326) On cutting of herbaceous stem of well irrigated plant, sap comes out because of the:

A) turgor pressure

B) root pressure

C) osmotic pressure

D) none of the above

• question_answer327) The exception of Mendels law of dominance is:

A) Pisum sativum

B) Mirabilis Jalapa

C) Cicer arietinum

D) Iberis amara

• question_answer328) Cross between first filial generation $({{F}_{1}})$ and pure recessive are called:

A) test cross

B) back cross

C) dihybird cross

D) none of these

• question_answer329) Which of the following nitrogenous base present only in RNA?

B) Uracil

C) Thymine

D) Guanine

• question_answer330) Drug which reduce blood pressure is?

A) Gum

B) Reserpine

C) Papaver

D) None of these

• question_answer331) Curcuma longa belongs to family:

A) Zingiberaceae

B) Apocynaceae

C) Umbelliferae

D) Papaveraceae

• question_answer332) The source of opium is:

A) stem

B) pinna

C) root

D) fruit

• question_answer333) Annual rings are formed is:

A) dicot herb

B) dicot stem

C) monocot stem

D) monocot root

• question_answer334) Root nodules arc formed in family:

A) Cruciferae

B) Leguminosae

C) Solanaceae

D) Poaceae

• question_answer335) Salt from soil enters into plant cell in the form of:

A) molecules

B) salts

C) atoms

D) ions

• question_answer336) Energy source which does not emit $C{{O}_{2}}$ in atmosphere is?

A) Coal

B) Oil

C) Nuclear reactor

D) Natural gases

• question_answer337) Anthocyanin pigment is found in:

A) cell sap

B) chloroplast

C) mitochondria

D) None of the above

• question_answer338) Vacuoles are covered by:

A) plasma membrane

B) tonoplast

C) Icucoplast

D) cell wall

• question_answer339) Extra chromosomal DNA is found in:

A) cytoplasm

B) mitochondria

C) golgi body

D) all of the above

• question_answer340) Glycolysis takes place in:

A) mitochondria

B) cytoplasm

C) golgi body

D) all of the above

• question_answer341) The cell organelle covered by single unit membrane is:

A) Lysosome

B) mitochondria

C) chloroplast

D) ribosome

• question_answer342) Water is not necessary for fertilization in which of the following?

A) Pteridiim

B) Spirogyra

C) Marchantia

D) Albugo

• question_answer343) Which of the following is not trace element?

A) Mg

B) Zn

C) B

D) Cu

• question_answer344) The largest herbarium of India is situated :

B) In Lucknow

C) In Calcutta

D) In Delhi

• question_answer345) The flower of family Liliaceae is:

A) hypogynous

B) synandrus

C) epigynous

D) perigynous

A) acetyle Co-A

B) succinic acid

C) fumeric acid

D) none of these

• question_answer347) The plant part which can respire without oxygen is?

A) Root

B) Stem

C) Seed

D) Leaf

• question_answer348) Archegonia is not present in:

A) Riccia

B) Pteridium

C) Cycas

D) Capsella

• question_answer349) In middle lamella, which substance is present in large quantity :

A) cuitin

B) suberin

C) pectin

D) none of these

• question_answer350) Crossing over takes place in:

A) amitotic division

B) mitotic division

C) meiotic division

D) none of these

• question_answer351) According to Mendels law of segregation the ratio of ${{F}_{2}}$ generation is:

A) 1 : 1

B) 3 : 1

C) 5 : 2

D) none of these

• question_answer352) Rooted, submerged hydrophytic plant is:

A) Eichhornia

B) Hydrilla

C) Lemna

D) None of these

• question_answer353) Name the plant whose all cells are capable of gamete formation?

A) Riccia

B) Marchantia

C) Albugo

D) Ulothrix

• question_answer354) Maximum energy is liberated by which of the following reaction?

A) Glycolysis

B) Krebs cycle

C) Calvin cycle

D) Hatch and Slack cycle

• question_answer355) Which of the following shows the undeveloped roots and lack of stomata?

A) Halophytes

B) Xerophytes

C) Hydrophytes

D) None of these

• question_answer356) Vessels and companion cells are absent in:

A) gymnosperm and pteridophyta

B) pteridophyta and monocot

C) dicot and angiosperms

D) none of the above

• question_answer357) Non vascular embryonic plant is:

A) thallophyta

B) pteridophyta

C) bryophyta

D) none of these

• question_answer358) The process of making the milk bacterialess is called:

A) immunization

B) pasteurization

C) vernalization

D) purification

• question_answer359) How many nuclei takes part in double fertilization?

A) 2

B) 3

C) 4

D) 5

• question_answer360) The characteristic of Gossypium stamen is:

D) none of the above

• question_answer361) Which of the following is floral formula of mustard ?

A) $Ebr,\,\oplus \,\,_{\begin{smallmatrix} O \\ + \end{smallmatrix}}^{{}}\,{{K}_{2+2}}\,{{C}_{\times 4}}\,{{A}_{2+}}\,{{G}_{(\underline{2})}}$

B) $\,\oplus \,\,{{A}_{2}}\,{{C}_{3}}\,{{G}_{(\underline{2})}}$

C) $Ebr{{}_{O}}{{K}_{2+}}{{C}_{\times 3}}{{A}_{2+4}}$

D)  None of these

• question_answer362) The fruit of Capsella is:

A) caryopsis

B) silicula

C) lomantum

D) none of these

• question_answer363) Who coined the term mitochondria?

A) C. Benda

B) Altman

C) Kollciker

D) None of these

• question_answer364) Endodermis is a part of:

A) pericycle

B) cortex

C) epidermis

D) none of these

• question_answer365) Chromoplast is found in:

A) stem

B) leaf

C) root

D) fruit and corolla of flower

• question_answer366) Prosopis spicigera is a state tree of Rajasthan. Its family is:

A) Mimosoideae

B) Caesalpinioideae

C) Papilionaceae

D) None of these

• question_answer367) Streptococcus is responsible for:

A) conversion of alcohol from molasis

B) processing of leather

C) conversion of milk into curd

D) none of these

• question_answer368) In an angiospermic plant, female gametophyte is represented by:

A) ovule

B) embryo sac

C) endosperm

D) none of these

• question_answer369) Which of the following is not renewable resource of India?

A) fossils and mineral petrol

B) animals and minerals

C) plants and animals

D) None of these

• question_answer370) How many male nuclei takes part in double fertilization of Capsella?

A) 1

B) 2

C) 3

D) 5

• question_answer371) In dorsal leaf, protoxylem is situated:

A) in middle

B) towards upper epidermis

C) towards lower epidermis

D) none of these

• question_answer372) How many cells are present in mature male gametophyte of Capsella?

A) 1

B) 2

C) 3

D) 4

• question_answer373) Vivipary is present in:

A) Peepal

B) Neem

C) Rhizophora

D) Jamoon

• question_answer374) Axile placentation is present in:

A) Cruciferae and Malvaceae

B) Malvaceae, Liliaceae and Solanaceae

C) Liliaceae and Cruciferae

D) None of these

• question_answer375) The causal agent of witches broom disease of Potato is:

A) virus

B) mycoplasma

C) bacteria

D) fungus

• question_answer376) Red drop is associated with pigment:

A) chlorophyll-a-660

B) chlorophyll-a-680

C) chlorophyll-a-560

D) None of the above

• question_answer377) In Vallisneria stomata are present in:

A) abaxial surface

C) both dorsal and ventral surface

D) absent

• question_answer378) Conjoint collateral or bicollateral and open vascular bundle is the characteristic of:

A) monocot stem

B) dicot stem

C) monocot root

D) dicot root

• question_answer379) How many cells are present in female gametophyte of Capsella just before fertilization?

A) 2

B) 3

C) 5

D) 7

• question_answer380) Passage cells are present in:

A) epidermis

B) cortex

C) endodermis

D) pericycle

• question_answer381) The pigments of $\text{PS-I}$ are:

A) ${{\text{P}}_{\text{700,}}}$ chlorophy$\text{II-a,}$ carotenoids

B) ${{P}_{680}}$chlorophy$\text{II-a,}$ xanthophyll

C) both (a) and (b)

D) none of these

• question_answer382) $C{{O}_{2}}$ reduction results into:

A) Co-A

B) pyruvic acid

C) citric acid

D) none of these

• question_answer383) Which type of movement is present in Mimosa pudica?

A) seismonastic

B) nyctinastic

C) chemonastic

D) none of the above

• question_answer384) The last structure of gametophytic stage in Riccia is:

A) gamete

B) spore

C) spore mother cell

D) none of these

• question_answer385) The unit of recombination is:

A) muton

B) recon

C) cistron

D) none of these

• question_answer386) In aquatic ecosystem which of the following is present in large number?

A) producers

B) primary consumer

C) decomposers

D) secondary consumers

A) haploid chromosomal set

B) diploid chromosomal set

C) tetraploid chromosomal set

D) all of the above

• question_answer388) How much energy is liberated if 1 mole glucose is completly oxidized?

A) 6860 cal

B) 68600 cal

C) 686000 cal

D) 6S60000 cal

• question_answer389) When a cross made between pure red and pure white flowers of pea plant, than 120 plants are obtained the ratio of them is:

A) 30 red : 90 white

B) 90 red : 30 white

C) 60 red : 60 white

D) all red

• question_answer390) Thigmotropism is shown by:

A) tendril

B) pinna

C) stem

D) leaf

• question_answer391) Flagella present in zoospores of Albugo are:

A) two dissimilar, on lateral surface

B) two similar, on lateral surface

C) two similar, on anterior tip

D) two dissimilar, on anterior tip

• question_answer392) Plants with higher osmotic pressure of cell sap are called :

A) xerophyte

B) halophyte

C) hydrophyte

D) mesophyte

• question_answer393) Which of the following have largest flower?

A) Rafflesia

B) Water melon

C) Mango

D) Banana

• question_answer394) The thorn of water chestnut (Trapa bipinosa) is the modification of:

A) petals

B) sepals

C) stamens

D) style

• question_answer395) The relation between Zoochlorella and Hydra is known as:

A) endozoic

B) parasitism

C) heterotroph

D) none of these

• question_answer396) Which of the following gas is responsible for add rain?

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

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

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

D) None

• question_answer397) The genotypic ratio of monohybrid generation will be:

A) 3 : 1

B) 1: 2 : 1

C) 1 : 1 : 1 : 1

D) none of these