# Solved papers for JCECE Medical JCECE Medical Solved Paper-2006

### done JCECE Medical Solved Paper-2006

• question_answer1) Which of the following rays can be polarised?

A) Water wave and sound wave

B) Sound wave and radio wave

C) X-rays and water wave

D) Light wave and X-ray

• question_answer2) Quantum nature can prove :

A) Interference

B) photoelectric effect

C) diffraction

D) polarization

• question_answer3) Which one has highest binding energy per nucleon?

A) $F{{e}^{56}}$

B) $L{{i}^{6}}$

C) ${{U}^{235}}$

D) $C{{a}^{40}}$

• question_answer4) Huygens wave theory cant explain:

A) interference

B) photoelectric-effect

C) diffraction

D) all of these

• question_answer5) If the refractive index of a glass prism is cot (A/2) and A is angle of prism, then angle of minimum deviation is:

A) $\left( \frac{\pi }{2}-A \right)$

B) $\left( 2\pi -\frac{A}{2} \right)$

C) $\left( \frac{\pi -A}{2} \right)$

D) $(\pi -2A)$

• question_answer6) If$f$ is the frequency when mass m is attached to a spring of spring constant$k,$then new frequency for this arrangement, is:

A) $f/2$

B) $\sqrt{2f}$

C) $f/\sqrt{2}$

D) $2\sqrt{2f}$

• question_answer7) What is equivalent capacitance of the network? Each capacitor has $\text{1}\,\text{ }\!\!\mu\!\!\text{ F}$capacitance:

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

B) $2\mu F$

C) $\frac{3}{2}\mu F$

D) $3\mu F$

• question_answer8) The two capacitors ${{\text{C}}_{\text{1}}}$and ${{\text{C}}_{\text{2}}}$are charged to potentials${{\text{V}}_{1}}$and${{\text{V}}_{2}}$ and then connected in parallel. There will be no flow of energy, if:

A) ${{C}_{1}}{{V}_{1}}={{C}_{2}}{{V}_{2}}$

B)  ${{V}_{1}}={{V}_{2}}$

C)  ${{C}_{1}}=C{{ }_{2}}$

D)  $\frac{{{C}_{1}}}{{{V}_{1}}}=\frac{{{C}_{2}}}{{{V}_{2}}}$

• question_answer9) Which is not the unit of electric field?

A) $\frac{N}{C}$

B) $\frac{N-m}{C}$

C) $\frac{V}{m}$

D) $\frac{J}{C-m}$

• question_answer10) If a body moves for 2 s with 15 m/s velocity towards east and then moves with 5 m/s velocity for 8 s towards north, then average velocity is :

A) 5 m/s

B) 15 m/s

C) 30 m/s

D) 7.5 m/s

• question_answer11) For monoatomic gas which is correct?

A) ${{C}_{V}}=\frac{3}{5}R$

B) ${{C}_{P}}=\frac{5}{2}R$

C) ${{C}_{P}}-{{C}_{V}}=2R$

D) $\frac{{{C}_{P}}}{{{C}_{V}}}=\frac{3}{5}$

• question_answer12) Which is correct relationship for diode?

A)

B)

C)

D)

• question_answer13) In a properly biased transistor:

A) both depletion layers are equally large

B) both depletion layers are equally small

C) emitter-base depletion layer is large but base-collector depletion layer is small

D) emitter-base depletion layer is small but base-collector depletion layer is large

• question_answer14) A wire has resistance $20\,\Omega .$ If its length is increased three times its initial length, then new resistance is:

A) $40\,\Omega .$

B) $80\,\Omega .$

C) $60\,\Omega .$

D) $180\,\Omega .$

• question_answer15) A circular coil of diameter d is rotated in electric field such that electric flux is changed from zero to maximum value $\text{o }\!\!|\!\!\text{ }$ then, electric field is:

A) $\frac{\text{o }\!\!|\!\!\text{ }}{\pi {{d}^{2}}}$

B) $\frac{\text{2o }\!\!|\!\!\text{ }}{\pi {{d}^{\,2}}}$

C) $\frac{4{{d}^{2}}}{\pi \text{o}{{\text{ }\!\!|\!\!\text{ }}^{\,2}}}$

D) $\frac{4\text{o }\!\!|\!\!\text{ }}{\pi {{d}^{2}}}$

• question_answer16) Work done in rotating a bar magnet from 0 to angle $\text{ }\!\!\theta\!\!\text{ }$ is:

A) $MH(1-cos\theta )$

B) $\frac{M}{H}(1-cos\theta )$

C) $\frac{M}{H}(cos\theta -1)$

D) $MH(cos\theta -1)$

• question_answer17) If a convex lens of refractive index 1.44 is dipped in liquid of refractive index 1.49, then it behaves as:

A) concave lens

B) convex lens

C) mirror

D) none of these

• question_answer18) If a source approaches and recedes from observer with same velocity, the ratio of frequencies (apparent) is 6 : 5, then velocity of source is: $({{v}_{s}}=330\,m/s)$

A) 20 m/s

B) 10 m/s

C) 30 m/s

D) 33 m/s

• question_answer19) If a boy swings in a circle so the minimum and maximum height from ground is 3 m and 6 m, then, its maximum velocity is:

A) $5\sqrt{2}\,m/s$

B) $2\sqrt{5}\,m/s$

C) $3\sqrt{5}\,m/s$

D) $5\sqrt{3}\,m/s$

• question_answer20) If percentage decrease in radius of earth is 1% without changing its mass, then percentage change in acceleration due to gravity is:

A) 2% decrease

B) 2% increase

C) 1% decrease

D) 1% increase

• question_answer21) A black body radiates at two temperatures ${{T}_{1}}$and ${{T}_{2}}$such that ${{T}_{1}}<{{T}_{2}}.$The frequency corresponding to maximum intensity is:

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

B) more at ${{T}_{1}}$

C) equally in the two cases

D) cannot say

• question_answer22) If temperature is increased by 1 K at constant volume, then work done on the gas is:

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

B) $\frac{3}{2}R$

C) zero

D) $\frac{1}{2}R$

• question_answer23) A body cools from $\text{75}{{\,}^{\text{o}}}\text{C}$to $\text{70}{{\,}^{\text{o}}}\text{C}$in time ${{t}_{1}},$from $\text{70}{{\,}^{\text{o}}}\text{C}$to $65{{\,}^{o}}C$in time${{t}_{2}}$and from $65{{\,}^{o}}C$to $60{{\,}^{o}}C$in time ${{t}_{3}},$ then:

A) ${{t}_{3}}>{{t}_{2}}>{{t}_{1}}$

B) ${{t}_{1}}>{{t}_{2}}>{{t}_{3}}$

C) ${{t}_{2}}>{{t}_{1}}={{t}_{3}}$

D) ${{t}_{1}}>{{t}_{2}}>{{t}_{3}}$

• question_answer24) A gas is at$\text{2}{{\text{7}}^{\text{o}}}\text{C}\text{.}$ Its volume is doubled keeping pressure constant, then final temperature is:

A) $600{{\,}^{o}}C$

B) 327 K

C) $327{{\,}^{o}}C$

D) $~273{{\,}^{o}}C$

• question_answer25) If the volume of gas is changed from ${{V}_{1}}$to ${{V}_{2}}$isothermally, then work done is:

A) $RT\,\ln \frac{{{V}_{1}}}{{{V}_{2}}}$

B) $RT\,\ln \frac{{{V}_{2}}}{{{V}_{1}}}$

C) $R({{T}_{2}}-{{T}_{1}})ln\frac{{{V}_{2}}}{{{V}_{1}}}$

D) $R({{V}_{2}}-{{V}_{1}})ln\frac{{{T}_{2}}}{{{T}_{1}}}$

• question_answer26) If energy is supplied to a gas isochorically, increase in internal energy is $dU$then:

A) $dQ=dU+dW$

B) $dQ=dU-dW$

C) $dQ=dU$

D) $dQ=-dU$

• question_answer27) A nucleus $_{\text{Z}}^{\text{A}}\text{X}$emits one $\alpha$and $2\beta$ particles, then final nucleus is:

A) $Y_{Z}^{A}-2$

B) $Y_{Z-4}^{A-4}$

C) $Y_{Z}^{A-4}$

D) $X_{Z}^{A}$

• question_answer28) The fringe width for red light is approximately how many times that for violet light in Youngs slit experiment?

A) 2 times

B) 3 times

C) Equal

D) 1/2 times

• question_answer29) A person sees clearly at a distance of 100 cm, then power of lens used to see object at 40 cm is:

A) 3D

B) $-3D$

C) $~-1.5\text{ }D$

D) $4-1.5\text{ }D$

• question_answer30) The electric potential Vis given as a function of distance $x$(metre) by $V=(5{{x}^{2}}+10x-4)V.$Value of electric field at $x=1\,m$is:

A) $-23\,V/m$

B) $11\,\,V/m$

C) $6\,V/m$

D) $-20\,V/m$

• question_answer31) In an image convenor tube fluorescent material is bombarded by:

• question_answer32) A particle executes, simple harmonic motion with a frequency$f.$ The frequency with which its kinetic energy oscillates is:

A) $f/2$

B) $f$

C) $2f$

D) $4f$

• question_answer33) The work done by the centripetal force F when the body completes one rotation around the circle of radius R is:

A) $2\pi RF$

B) $~2RF$

C) RF

D) zero

• question_answer34) The unit mass having $\vec{r}=8\hat{i}-4\hat{j}$and $\vec{v}=8\hat{i}+4\hat{j}$in its angular momentum is:

A) 64 unit in $-\,\hat{k}$direction

B) 64 unit in $+\,\hat{k}$direction

C) 64 unit in $+\,\hat{j}$direction

D) 64 unit in $-\,\,\hat{i}$ direction.

• question_answer35) Which is nuclear fusion direction?

A) Hydrogen to helium

B) Uranium to krypton

C) Hydrogen to water

D) Neutron to proton

• question_answer36) If an AC produces same heat as that produced by a steady current of 4 A, then peak value of current is:

A) 4 A

B) 1.56 A

C) 5.6 A

D) 1.41 A

• question_answer37) In LCR circuit$f=\frac{50}{\pi }Hz,\,V=50\,\text{volt,}$$\,\text{R}\,\text{=}\,\text{300}\,\Omega .$ If$\text{L}\,\text{=}\,\text{1}\,\text{H}$and $C=20\,\mu C,$then voltage across capacitor is:

A) zero

B) 20 V

C) 30 V

D) 50 V

• question_answer38) If two forces each of 2 N are inclined at $\text{6}{{\text{0}}^{\text{o}}}\text{,}$ then resultant force is:

A) 2N

B) $2\sqrt{5}\,N$

C) $3\sqrt{2}\,N$

D) $4\sqrt{2}\,N$

• question_answer39) A block of mass 10 kg is placed on a rough horizontal surface whose coefficient of friction is 0.5. If a horizontal force of 100 N is applied on it, then acceleration of block will be:

A) $10\text{ }m/{{s}^{2}}$

B) $5\,m/{{s}^{2}}$

C) $15\text{ }m/{{s}^{2}}$

D) $~0.5\,m/{{s}^{2}}$

• question_answer40) The potential difference across an instrument in an AC circuit of frequency $f$ is V and the current through it is $I$ such, that $V=5\cos \,2\pi ft\,\text{volt}$ and$I=2\sin 2\pi ft$ amp. The power dissipated in the instrument is:

A) zero

B) 10 W

C) 5 W

D) 2.5 W

• question_answer41) If ratio of intensities of interfering waves is 16: 9, then ratio of maximum to minimum intensity is:

A) 49 : 1

B) 225 : 81

C) 3:1

D) 9:1

• question_answer42) The power of a lens, a short sighted person uses is -2 D. Find the maximum distance of an object which he can see without spectacles:

A) 25 cm

B) 50 cm

C) 100 cm

D) 10 cm

• question_answer43) The first overtone frequency of a wave on string of length 2 m is 250 Hz. Then, its velocity is:

A) 1000 m/s

B) 25 m/s

C) 500 m/s

D) 10 m/s

• question_answer44) What is the current flowing in arm AB?

A) $\frac{35}{4}A$

B) $\frac{13}{7}A$

C) $\frac{5}{7}A$

D) $\frac{7}{5}A$

• question_answer45) A projectile is fired making an angle $2\theta$with horizontal with velocity 4 m/s. At any instant it makes an angle $\theta ,$ then its velocity is:

A) $4\cos \theta$

B) $4(2cos\theta -sec\theta )$

C) $(2cos\theta +4sec\theta )$

D) $4(sec\theta +cos\theta )$

• question_answer46) If path difference becomes $(2n-1)\frac{\lambda }{2}$then: 2>>

A) white fringe is formed

B) bright fringe is formed

C) uniform illumination is obtained

D) dark fringe is formed

• question_answer47) If the intensity of fringe at wavelength$\lambda$ is $K,$then its intensity at wavelength$\lambda /2$is:

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

B) $K$

C) zero

D) $\sqrt{2}K$

• question_answer48) A positively charged particle moving with velocity v enters a region of space having a uniform magnetic field B. The particle will experience the large deflecting force, when the angle between v and B is:

A) ${{0}^{o}}$

B) ${{45}^{o}}$

C) ${{90}^{o}}$

D) ${{180}^{o}}$

• question_answer49) In a step-up transformer the turn ratio is 1:8. A lead accumulator $(emf=6V)$ is connected across the primary coil of the .transformer. The voltage across the secondary coil is:

A) 48 V

B) 0.75 V

C) 14 V

D) zero

• question_answer50) The mass of a lift is 500 kg. When it ascends with an acceleration of $\text{2}\,\text{m/}{{\text{s}}^{\text{2}}}\text{,}$ the tension in the cable will be: $\text{(g}\,\text{=}\,\text{10}\,\text{m/}{{\text{s}}^{2}}\text{)}$

A) 6000 N

B) 5000 N

C) 4000 N

D) 1000 N

• question_answer51) A water molecule can form maximum number of H-bond which is equal to:

A) 1

B) 2

C) 3

D) 4

• question_answer52) Bond angle in ${{\text{H}}_{\text{2}}}\text{O}$is:

A) ${{109}^{o}}28$

B) ${{107}^{o}}10\,$

C) $104.5{{\,}^{o}}$

D) ${{92}^{o}}$

A) $ZnS$

B) $PbC{{O}_{3}}$

C) $ZnC{{O}_{3}}$

D) $MgC{{O}_{3}}$

• question_answer54) Which is extremely stable?

A) $N{{F}_{3}}$

B) $NC{{l}_{3}}$

C) $NB{{r}_{3}}$

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

• question_answer55) $\text{C}{{\text{H}}_{\text{3}}}\text{COCl}$does not react with:

A) diethyl ether

B) phenol

C) ethanol

D) aniline

• question_answer56) In $\text{S}{{\text{O}}_{\text{2}}}$hybridisation is:

A) $sp$

B) $s{{p}^{3}}$

C) $ds{{p}^{2}}$

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

• question_answer57) Lowest melting point chloride is:

A) $\text{LiCl}$

B) $\text{NaCl}$

C) $\text{KCl}$

D) $\text{CsCl}$

• question_answer58) Half-life of a substance is 6 min. If its initial amount is 32 g, then amount present after 18 minis:

A) 4g

B) 8g

C) 16g

D) 2g

• question_answer59) If calcium acetate and calcium formate react, then product formed is:

A) acetaldehyde

B) acetic acid

C) formic acid

D) ethyl formate

• question_answer60) Reduction with aluminium isopropoxide in excess of isopropyl alcohol is called Meerwein Pondorf Verley reduction (MPV). What will be the firal product when cyclohex-2-enone is selectively reduced in MPV reaction?

A) Cyclohexanol

B) Cyclohex-2-enol

C) Cyclohexanone

D) Benzene

• question_answer61) If pH of a solution is 4, then ${{\text{H}}^{\text{+}}}$is:

A) $\text{1}{{\text{0}}^{4}}$

B) $\text{1}{{\text{0}}^{10}}$

C) ${{10}^{-4}}$

D) ${{10}^{-10}}$

• question_answer62) When sodium nitrate is heated above $\text{600}{{\,}^{\text{o}}}\text{C,}$then:

A) only $\text{N}{{\text{a}}_{\text{2}}}\text{O}$is formed

B) only ${{\text{N}}_{2}}$is formed

C) only${{\text{O}}_{\text{2}}}$ is formed

D) all are formed

• question_answer63) Which of the following produces $\text{C}{{\text{l}}_{2}}$gas?

A) $\text{NaCl}\,\text{+}\,\text{HN}{{\text{O}}_{\text{3}}}$

B) $\text{Mn}{{\text{O}}_{\text{2}}}\text{+}\,\text{HCl}$

C) $\text{KMn}{{\text{O}}_{\text{4}}}\text{+}\,\text{HCl}$

D) $\text{HCl}\,\text{+}\,\text{HN}{{\text{O}}_{\text{3}}}$

• question_answer64) Which is correctly arranged as increasing size?

A) $F<O<C<Cl<Br$

B) $C<O<F<Cl<Br$

C) $Cl<Br<F<C<O$

D) $O<F<C<Cl<Br$

• question_answer65) $\text{N}{{\text{H}}_{\text{3}}}$is absorbed by:

A) ozone

B) $\text{CaO}$

C) pyrargallol

D) $\text{CaC}{{\text{l}}_{\text{2}}}$

• question_answer66) $\text{1}\text{.25}\,\text{g}\,\text{N}{{\text{H}}_{\text{3}}}$contains how many atoms?

A) ${{10}^{23}}$

B) $2\times {{10}^{23}}$

C) $6\times {{10}^{13}}$

D) $4\times {{10}^{23}}$

• question_answer67) Which of the following has smallest bond angle?

A) Ethane

B) Ethene

C) Ethyne

D) Ethanol

• question_answer68) Chloroform in air is oxidised to:

A) $\text{CC}{{\text{l}}_{\text{4}}}$

B) dichloromethane

C) phosgene

D) oxygen

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

B) $CaS{{O}_{4}}.\frac{1}{2}{{H}_{2}}O$

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

D) $CuS{{O}_{4}}$

• question_answer70) Which is not soluble in water?

A) $PbS{{O}_{4}}$

B) $CdS{{O}_{4}}$

C) $Bi{{(S{{O}_{4}})}_{2}}$

D) $CuS{{O}_{4}}$

• question_answer71) Which of the following is colour red?

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

B) $CuF$

C) $Zn{{F}_{2}}$

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

• question_answer72) How many unpaired electrons are present in $[Cr{{(NH)}_{3}}]B{{r}_{3}}$

A) 1

B) 2

C) 3

D) 4

• question_answer73) $S+\frac{3}{2}{{O}_{2}}\xrightarrow{{}}S{{O}_{3}}\,\Delta H=y,$ then heat of formation of $\text{S}{{\text{O}}_{\text{2}}}$is:

A) $~2x-y$

B) $~2x+y$

C) $~x+y$

D) $\frac{2x-y}{2}$

• question_answer74) Reagent (catalyst) used in Friedel-Crafts alkylation reaction is:

A) $AlC{{l}_{3}}$

B) $\text{anhyd}\text{.}\,\,\text{AlC}{{\text{l}}_{\text{3}}}$

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

D) $He$

• question_answer75) Catalyst used in making${{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}$ in contact process is:

A) ${{\text{V}}_{\text{2}}}{{\text{O}}_{\text{5}}}$

B) $F{{e}_{2}}{{O}_{3}}$

C) $C{{r}_{2}}{{O}_{3}}$

D) $Cr{{O}_{3}}$

• question_answer76) When acetamide is reacted with $\text{NaOBr,}$then product formed is:

A) ethanamine

B) methanamine

C) methanamide

D) ethanenitrile

• question_answer77) Isocyanide is prepared by:

A) Friedel Crafts reaction

B) Wurtzs reaction

C) Williamson synthesis

D) Carbylamine reaction

• question_answer78) If rate of diffusion of $\text{C}{{\text{H}}_{\text{4}}}$is twice than that of a gas$x,$ then its molecular mass is:

A) 64 g

B) 16 g

C) 32 g

D) 8 g

• question_answer79) Which one is not Lewis acid?

A) $Be{{F}_{2}}$

B) $SnC{{l}_{4}}$

C) $\text{AlC}{{\text{l}}_{\text{3}}}$

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

• question_answer80) Natural gas mainly consists of:

A) methane

B) butane

C) propane

D) ethane + octane

• question_answer81) Phenol is treated with Zn to form:

A) benzoic acid

B) benzyl alcohol

C) benzene

D) benzoquinone

• question_answer82) Which one is isoelectronic with$\text{CO}$?

A) $N_{2}^{-}$

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

C) $C{{N}^{-}}$

D) $NO$

• question_answer83) How much volume of $\text{1M}\,{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}$is required to neutralize 20 mL of$\text{1M}\,\text{NaOH}$?

A) 10 mL

B) 20 mL

C) 5mL

D) 15 mL

A) $\text{SnC}{{\text{l}}_{\text{2}}}\text{+}\,\text{HCl}$

B) $AgN{{O}_{3}}+N{{H}_{4}}OH$

C) $CuS{{O}_{4}}+NaOH$

D) $FeS{{O}_{4}}+{{H}_{2}}{{O}_{2}}$

• question_answer85) $C{{u}^{2}}+Ag\xrightarrow{{}}Cu+A{{g}^{+}}$oxidation half reaction is:

A) $C{{u}^{2+}}\to Cu$

B) $Ag\to A{{g}^{+}}$

C) $Cu\to C{{u}^{2+}}$

D) all of these

• question_answer86) ${{\text{C}}_{\text{4}}}{{\text{H}}_{\text{10}}}\text{O}$has how many isomeric alcohols?

A) 1

B) 2

C) 3

D) 4

• question_answer87) IUPAC name of $C{{H}_{3}}-C\equiv C-HC-{{(C{{H}_{3}})}_{2}}$ is:

A) $4-$methyl$-2-$pentyne

B) $1,1-$ dimethyl$-2-$butyne

C) $2-$methyl$-4-$pentyne

D) $4,4-$dimethyl$-2-$butyne

• question_answer88) Fehling test is given by:

A) glucose

B) fructose

C) sucrose

D) all of these

• question_answer89) Number of isomeric primary amine of molecular formula ${{\text{C}}_{\text{4}}}{{\text{H}}_{\text{11}}}\text{N}$is:

A) 1

B) 2

C) 3

D) 4

• question_answer90) For reaction $3X+Y{{X}_{3}}Y$ $\Delta H=+\,ve,$ amount of ${{X}_{3}}Y$can be changed by:

A) changing temperature

B) changing pressure

C) changing temperature, pressure,

D) changing temperature, pressure, adding catalyst

• question_answer91) Which one is most ionic?

A) ${{P}_{2}}{{O}_{5}}$

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

C) $M{{n}_{2}}{{O}_{7}}$

D) ${{P}_{2}}{{O}_{3}}$

• question_answer92) Which one gives ${{I}_{2}}$ on reaction with$KI$?

A) $~A{{g}_{2}}S{{O}_{4}}$

B) $CuS{{O}_{4}}$

C) $~PbS{{O}_{4}}$

D) $~CdS{{O}_{4}}$

• question_answer93) Colour of the solution When $\text{KI}$reacts with $\text{B}{{\text{r}}_{2}}$ is:

A) blue

B) black

C) red

D) no change

• question_answer94) Finely divided iron combines with CO to give:

A) $Fe{{(CO)}_{5}}$

B) $F{{e}_{2}}{{(CO)}_{9}}$

C) $F{{e}_{3}}{{(CO)}_{12}}$

D) $Fe{{(CO)}_{6}}$

• question_answer95) Which of the following is pyramidal?

A) $PC{{l}_{3}}$

B) $CO_{3}^{2-}$

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

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

• question_answer96) Which of the following conducts electricity?

A) Crystal$\text{NaCl}$

B) Diamond

C) Molten$\text{KBr}$

D) Sulphur

• question_answer97) Ratio of kinetic energy of hydrogen and helium gas at $\text{300}\,\text{K}$is:

A) 2 : 1

B) 4 : 5

C) 1 : 1

D) 1 : 2

• question_answer98) Which of the following has highest energy?

A) $n=2,\,l=1$

B) $n=3,\,l=2$

C) $n=3,\,l=1$

D) $n=2,\,l=0$

• question_answer99) Oxidation state of phosphorus in pyrophosphoric acid is:

A) + 5

B) + 3

C) + 4

D) + 1

• question_answer100) If the 75% of a first order reaction is complete in 8 min, then time taken to decompose 50% of its initial amount is:

A) 2 min

B) 4 min

C) 12 min

D) 1 min

• question_answer101) Sequence of cytochromes is:

A) $cyt.\text{ }a,\text{ }b,\text{ }c,\text{ }{{a}_{3}}$

B) $~cyt.\text{ }b,\text{ }c,\text{ }a,\text{ }{{a}_{3}}$

C) $~cyt.\text{ }b,\text{ }a,\text{ }{{a}_{3}},c$

D) $~cyt.\text{ }b,c,\,{{a}_{3}},a$

A) Mg pyrole ring

B) Fe porphyrin ring

C) nucleotide

D) alloy of nichrome

• question_answer103) Placentation in Brasicaceae is:

A) parietal

B) marginal

C) axile

D) basal

• question_answer104) Rauwolffia serpentina is used in:

A) curing high blood pressure

B) kideny failure

C) eye defect

D) diabetes

• question_answer105) Which one of the following is agranulocyte?

A) Neutrophil

B) Eosinophil

C) Basophil

D) Monocyte

• question_answer106) Who described ${{\text{C}}_{\text{4}}}$pathway for firsts time?

A) Hatch and Slack

B) Robert Hill

C) Hans Krebs

D) Melvin Calvin

• question_answer107) Who is the father of Indian Bryology?

A) O.P. lyengar

B) S. Kashyap

C) E. J. Butlar

D) R. Mishra

• question_answer108) Which one is absent in frog?

A) Phrenic nerve

B) Renal portal vein

C) Both [a] and [b]

D) None of these

• question_answer109) Poison gland in snake is located in:

A) parietal

B) maxilla

C) mandible

D) neck

• question_answer110) Eugene P. Odum is a:

A) bryologist

B) ecologist

C) gerontologist

D) neurologist

• question_answer111) Which of the following is not endocrine gland?

A) Thyroid

C) Pituitary

D) Sebaceous

• question_answer112) Animal protected in Kaziranga National park is:

A) tiger

B) lion

C) elephant

D) Rhinoceros

• question_answer113) In 125 amino acid sequence if 25 amino acid is mutated to UAA, then:

A) a polypeptide of 124 amino acid is formed

B) a polypeptide of 25 amino acid is formed

C) a polypeptide of 24 amino acid is formed

D) any of the above can be possible

• question_answer114) In gastrulation, which is (are) formed?

A) endoderm

B) mesoderm

C) etoderm, endoderm

D) ectoderm, mesoderm, endoderm

• question_answer115) In embryo sac, $n,\text{ }2n,\text{ }3n$conditions are found respectively in:

A) egg, antipodal, endosperm

B) nucleus, endosperm, egg .

C) antipodal, zygote, endosperm

D) endosperm; nucleus, egg

• question_answer116) Which of the following set is green-house gases?

A) $CFC,C{{H}_{4}},C{{O}_{2}},{{N}_{2}}O$

B) $C{{O}_{2}},C{{H}_{4}},{{N}_{2}},{{O}_{2}}$

C) $C{{O}_{2}},C{{H}_{4}},{{N}_{2}},{{O}_{3}}$

D) $C{{O}_{2}},CFC,{{N}_{2}},{{O}_{2}}$

• question_answer117) Krebs cycle takes place in:

A) mitochondrial matrix

B) cytoplasm

C) lysosome

D) nucleus

• question_answer118) Which of the following is monogenetic parasite?

A) Entamoeba histolytica

B) Taenia solium

C) Wuchereria bancroftii

D) Plasmodium vivax

• question_answer119) Stratified squammous epithelium is found in :

A) pharynx

B) trachea

C) -ileum

D) Bowmans capsule

• question_answer120) Which one is polymer?

A) Sucrose

B) Glycogen

C) Fructose

D) Lactose

• question_answer121) In cell division, spindle fibres are made up of protein:

A) myoglobin

B) tubulin

C) albumin

D) myosin

• question_answer122) In photosynthesis, for fixation of one mole of glucose number of ATP and $\text{NADP}{{\text{H}}_{\text{2}}}$required is:

A) 12 and 18

B) 18 and 12

C) 6 and 12

D) 18 and 18

• question_answer123) Bulk of histone proteins synthesized in:

A) ${{G}_{1}}-$phase

B) ${{G}_{2}}-$ phase

C) S-phase

D) ${{G}_{0}}-$phase

• question_answer124) Species which is in danger of extinction is:

A) endangered

B) vulnerable

C) rare

D) critically endangered

A) triploblastic, acoeiomate

B) triploblastic, coelomate

C) dibloblastic, acoeiomate

D) diploblastic, coelomate

• question_answer126) Cyathium and hypanthodium inflorescence are related in having:

A) nectar glands

B) unisexual flower

C) both [a] and [b]

D) none of these

• question_answer127) Exarch and polyarch condition found in:

A) monocot stem

B) dicot stem

C) monocot root

D) dicot root

• question_answer128) Which of the following enzymes helps in crossing plasma membrane?

A) protease

B) pepsin

C) dehydrpgenase

D) permease

• question_answer129) $\text{N}{{\text{H}}_{\text{3}}}$in Amoeba is excreted by:

A) food vacuole

B) contractile vacuole

C) plasma membrane

D) all of the above

• question_answer130) Antiparallel strands in DNA is due to:

B) hydrogen bond

C) phosphodiester bond

D) glycosidic bond

• question_answer131) Choose the incorrect match:

A) nucleus-RNA

B) lysosome-protein synthesis

C) mitochondria-respiration

D) cytoskeleton-microtubules

A) restriction endonuclease

B) reverse transcriptase

C) protease

D) zymase

• question_answer133) Rough endoplasmic reticulum is associated with:

A) fat synthesis

B) steroid synthesis

C) protein synthesis

D) all of these

• question_answer134) In lung, maximum gaseous exchange is due to:

A) simple diffusion

B) active transport

C) passive transport

D) fascilitated diffusion

• question_answer135) Resolving power of electron microscope is:

A) $\text{1}\overset{\text{o}}{\mathop{\text{A}}}\,$

B) $\text{10}\overset{\text{o}}{\mathop{\text{A}}}\,$

C) $\text{100}\overset{\text{o}}{\mathop{\text{A}}}\,$

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

• question_answer136) The female children of haemophilic father and carrier mother:

A) all haemophilic

B) half haemophilic, half carrier

C) all normal

D) all carrier

• question_answer137) Number of Barr bodies in XXXXY is:

A) 1

B) 2

C) 3

D) 4

• question_answer138) Natural system of classification is given by:

A) Benthem and Hooker

B) Carolus Linnaeus

C) Charles Darwin

D) Engler and Pranti

• question_answer139) Leaves of grasses roll and unroll due to :

A) hormonal change

B) change in temperature

C) change in turgor pressure

D) presence of bulliform apparatus

• question_answer140) Stomata open and close due to:

A) turgor pressure change

B) hormonal change

C) temperature change

D) all of the above

• question_answer141) Haploid structure of Funaria is:

A) protonema

B) calyptra

C) apophysis

D) operculum

• question_answer142) Fruiting body of Penicillium is:

A) cleistothecium

B) pycniophysis

C) sterigmata

D) none of these

• question_answer143) Sperm of Cycas is:

A) multiflagellated and very large

B) small and biflagellated

C) multiflagellated and small

D) large and biflagellated

A) plant and animal

B) air and ${{\text{H}}_{\text{2}}}\text{O}$

C) soil and light

D) biotic and abiotic component

• question_answer145) For nitrogen fixation, pigment useful is :

A) nitrogenase

B) haemoglobin

C) myoglobin

D) leghaemoglobin

• question_answer146) Sal and teak are found in

A) tropical rain forest

B) tropical deciduous forest

C) temperate board leaf forest

D) temperate needle leaf forest

• question_answer147) In plasmolysed cell, the space between nucleus and plasma membrane is occupied by:

A) hypotonic solution

B) hypertonic solution

C) isotonic solution

D) air

• question_answer148) During oogenis, the small structure separated from egg is:

A) polar bodies

B) secondary endosperm

C) herring bodies

D) Hela cells

• question_answer149) Structural and functional unit of kidney is:

A) neuron

B) nephron

C) lungs

D) Schwanns cells

A) Triticum turgidum

B) Triticum durum

C) Triticum monococcum

D) Triticum aestivum