Solved papers for Punjab Medical Punjab - MET Solved Paper-2005

done Punjab - MET Solved Paper-2005

• question_answer1) An object accelerates from rest to a velocity $27.5m/s$ in $10\sec$ then the distance covered in next $10\sec$ is

A) $550m$

B) $137.5m$

C) $412.5m$

D) $175m$

• question_answer2) The position vector of a particle is $\overset{\to }{\mathop{\text{j}}}\,=(a\cos \omega t)\overset{\hat{\ }}{\mathop{i}}\,\text{ + }(a\sin \omega t)\overset{\hat{\ }}{\mathop{\text{j}}}\,$ The velocity vector of the particle is

A)  parallel to position vector

B)  perpendicular to position vector

C)  directed towards the origin

D)  directed away from the origin

• question_answer3) If a person sitting in a train moving with a constant velocity along a straight line, throws a ball vertically upwards then

A) ball will fall onwards the train

D) none of these

• question_answer4) A stone thrown at an angle $\theta$ to the horizontal reaches a maximum height$H$. Then the time of flight of stone will be

A) $\sqrt{\frac{2\,\,H}{g}}$

B) $2\sqrt{\frac{2\,\,H}{g}}$

C) $\frac{2\sqrt{2H\sin \theta }}{g}$

D) $\frac{\sqrt{2H\sin \theta }}{g}$

• question_answer5) At the height$80m$, an aeroplane is moved with$150m/s$. A bomb is dropped from it so as to hit a target. At what distance from the target should the bomb be dropped?$(giveng=10m/{{s}^{2}})$.

A) $605.3m$

B) $600m$

C) $80m$

D) $230m$

• question_answer6) A spring has length I and spring constant$k$. If spring is divided in two equal parts then spring constant of each part is

A) $k$

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

C) $2\,\,k$

D) $4\,\,k$

• question_answer7) A body is moving along a rough horizontal surface with an initial velocity$6m/s$. If the body comes to rest after travelling a distance $9\,\,m$, then the coefficient of sliding friction will be

A) $0.4$

B) $0.2$

C) $0.6$

D) $0.8$

• question_answer8) While walking on ice, one should take small steps to avoid slipping. This is because smaller steps ensure

A) large friction

B) smaller friction

C) larger normal face

D) smaller normal face

• question_answer9) If the momentum of body is increased by $100%$ then the percentage increase in the kinetic energy will be

A) $330%$

B) $225%$

C) $200%$

D) $300%$

• question_answer10) A ball of mass $m$ moves with speed $v$ and strikes a wall having infinite mass and it returns with same speed then the work done by the ball on the wall is

A) $zero$

B) $mv\mathbf{J}$

C) $m/v\mathbf{J}$

D) $v/m\mathbf{J}$

• question_answer11) A bullet of mass $0.1\,\,kg$ is fired with a speed of$100\,\,m/s$. The mass of gun being$50\,\,kg$. Then the velocity of recoil become

A) $0.05m/s$

B) $0.5m/s$

C) $0.1m/s$

D) $0.2m/s$

• question_answer12) A body of mass $M$ moves with velocity $v$ and collides elastically with another body of mass $m(M>\,\,>m)$ at rest then the velocity of body of mass $m$ is

A) $v$

B) $2\,\,v$

C) $v/2$

D) $zero$

• question_answer13) If torque is zero then

A) angular momentum is conserved

B) linear momentum is conserved

C) energy is conserved

D) angular momentum is not conserved

• question_answer14) A solid sphere, a hollow sphere and a disc having same mass and radius roll down the same inclined plane from rest. Which one will reach the ground in least time?

A) Solid sphere

B) Hollow sphere

C) Disc

D) All will reach in same time

• question_answer15) In simple harmonic motion maximum velocity is at

A) extreme position

B) half of extreme position

C) equilibrium position

D) between extreme and equilibrium position

• question_answer16) Shearing stress is related to:

A) length

B) volume

C) shape

D) area

• question_answer17) The ratio of root mean square velocities of ${{O}_{3}}$ and ${{O}_{2}}$ is

A) $1:1$

B) $2:3$

C) $3:2$

D) $\sqrt{2}:\sqrt{3}$

• question_answer18) If mass of $He$ is 4 times that of hydrogen then mean velocity of $He$ is

A) 2 times of $H-$mean value

B) 1/2 times of $H$ mean value

C) 4 times of $H$ mean value

D) same as $H-$mean value

• question_answer19) The ratio of radii of two spheres of same material is$1:4$. Then the ratio of their heat capacities will be

A) $\frac{1}{64}$

B) $\frac{1}{32}$

C) $\frac{1}{2}$

D) $\frac{1}{4}$

• question_answer20) First law of thermodynamics is a consequence of the conservation of

A) energy

B) charge

C) heat

D) all of these

• question_answer21) An ideal heat engine exhausting heat at ${{77}^{o}}C$ is to have $30%$ efficiency. It must take heat at

A) ${{127}^{o}}C$

B) ${{227}^{o}}C$

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

D) ${{673}^{o}}C$

• question_answer22) A liquid cools from ${{50}^{o}}C$ to ${{45}^{o}}C$ in 5 minutes and from ${{45}^{o}}C$ to ${{41.5}^{o}}C$ in the nest 5 minutes. The temperature of the surrounding is

A) ${{27}^{o}}C$

B) ${{40.3}^{o}}C$

C) ${{23.3}^{o}}C$

D) ${{33.3}^{o}}C$

• question_answer23) At${{127}^{o}}C$radiated energy is$2.7\times {{10}^{-3}}J/s$. At what temperature radiated energy is$4.32\times {{10}^{6}}J/s$?

A) $400K$

B) $4000K$

C) $80000K$

D) $40000K$

• question_answer24) If wave equation is$y=0.08\sin \frac{2\pi }{\lambda }(200t-x)$then the velocity of the wave will be

A) $400\sqrt{2}m/s$

B) $200\sqrt{2}m/s$

C) $400m/s$

D) $200m/s$

• question_answer25) When a light ray incidents from air to glass and reflected, angle of incidence is${{57}^{o}}$. What will be the incident angle for reflection again when it incidents from water to glass?

A) $\theta <{{57}^{o}}$

B) $\theta >{{57}^{o}}$

C) $\theta ={{57}^{o}}$

D) Cant be determined

• question_answer26) A man having height $6\,\,m$, observes image of $2\,\,m$ height erect, then mirror used is

A) concave

B) convex

C) plane

D) none of these

• question_answer27) Which of the following statements is true?

A) If wavelength of light increases then frequency also increases

B) If energy increases then frequency also increases

C) Frequency of red light is greater than frequency of blue light

D) If energy increases then frequency decreases

• question_answer28) If focal lengths of the objective and the eye piece of a telescope be ${{f}_{o}}$ and ${{f}_{e}}$ respectively then its magnification is

A) $\frac{1}{2}({{f}_{o}}+{{f}_{e}})$

B) ${{f}_{o}}/{{f}_{e}}$

C) $({{f}_{o}}+{{f}_{e}})$

D) ${{f}_{o}}\times {{f}_{e}}$

• question_answer29) Near and far points of human eye are

A) $25cm$ and infinite

B) $50cm$ and $100cm$

C) $25cm$ and $50cm$

D) $0cm$and $25cm$

• question_answer30) Work done in carrying a charge around an equipotential surface will

A) increase

B) decrease

C) zero

D) infinity

• question_answer31) An air parallel plate capactior has capacity$C$. When capacity and distance between plates are doubled when immersed in a liquid then dielectric constant of the liquid is

A) 1

B) 2

C) 3

D) 4

• question_answer32) If the potential of a capacitor having capacity $6\mu F$ is increased from $10volt$ to $20volt$ then increase $m$ its energy is

A) $12\times {{10}^{-6}}J$

B) $9\times {{10}^{-4}}J$

C) $4.5\times {{10}^{-6}}J$

D) $2.25\times {{10}^{-6}}J$

• question_answer33) If a rod has resistance $4\Omega$ and if rod is turned as half cycle then the resistance along diameter is

A) $1.56\Omega$

B) $2.44\Omega$

C) $4\Omega$

D) $2\Omega$

• question_answer34) A galvanometer of resistance $22.8\Omega$ measures$1\,\,A$. How much shunt should be used so that it can be used to measure$20\,\,A$?

A) $1\Omega$

B) $2\Omega$

C) $1.2\Omega$

D) $2.2\Omega$

• question_answer35) If an ammeter is joined parallel through a circuit, it can be damaged due to excess

A) resistance

B) current

C) voltage

D) none of these

• question_answer36) The heat produced by a 100 watt heater in 2 minutes will be equal to

A) $12\times {{10}^{3}}J$

B) $10\times {{10}^{3}}J$

C) $6\times {{10}^{3}}J$

D) $3\times {{10}^{3}}J$

• question_answer37) Two wires have resistances $R$ and $2R$. When both are joining in series and in parallel then ratio of heats generated in these situations on applying the same voltage, is:

A) $2:1$

B) $1:2$

C) $2:9$

D) $9:2$

• question_answer38) The current in a coil decreases from $1A$ to $0.2A$in$10\sec$. The coefficient of self-inductance, if induced emf is $0.4volt$, is:

A) $5H$

B) $3H$

C) $4H$

D) $2H$

• question_answer39) Cyclotron is a device which is used to

A) measure the charge

B) measure the voltage

C) accelerating protons

D) accelerating electrons

• question_answer40) In $L-R$ circuit, resistance is $8\Omega$ and inductive reactance is$6\Omega$, then impedance is

A) $2\Omega$

B) $14\Omega$

C) $4\Omega$

D) $10\Omega$

• question_answer41) A cylindrical bar magnet is kept along the axis of a-circular coil. If the magnet is rotated about its axis, passing through the centre, perpendicular to the face, then:

A) a current will be induced in the coil

B) no current will be induced in the coil

C) an emf and a current both will be induced in the coil

D) none of these

• question_answer42) Dimension of Plancks constant is

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

B) $[ML{{T}^{-2}}]$

C) $[M{{L}^{-2}}T]$

D) $[M{{L}^{-1}}{{T}^{2}}]$

• question_answer43) The ratio of areas within the electron orbits for the first excited state to the ground state for hydrogen atom, is

A) $16:1$

B) $18:1$

C) $4:1$

D) $2:1$

• question_answer44) The kinetic energy of an electron revolving around a nucleus will be

A) four times of its P.E.

B) twice of its P. E.

C) equal to its P. E.

D) half of its P. E.

• question_answer45) The X-ray cannot be diffracted by means of an ordinary grating due to

A) large wavelength

B) high speed

C) short wavelength

D) all of these

• question_answer46) The nuclear energy produced in nuclear reactor is used to run

A) a.c. motor

B) induction generator

C) electric generator

D) d.c. motor

• question_answer47) The dual nature of light is exhibited by

A) diffraction and photoelectric effect

B) diffraction and reflection

C) refraction and interference

D) photoelectric effect

• question_answer48) The region of the atmosphere above troposphere is known as

A) lithosphere

B) upper sphere

C) ionosphere

D) stratosphere

• question_answer49) Overlapping of the valence band and the conduction band is for

A) conductor

B) insulator

C) semiconductor

D) all of the above

• question_answer50) The electrical conductivity of earths atmosphere increases with altitudes because of

A) number of ions

B) accelerator protons

C) accelerating voltage

D) number of neutrons

• question_answer51) Arrange the following as increase in oxidation number:

 (i)$M{{n}^{2+}}$ (ii)$Mn{{O}_{2}}$ (iii)$KMn{{O}_{4}}$ (iv)${{K}_{2}}Mn{{O}_{4}}$

A) (i) > (ii) > (iii) > (iv)

B) (i) < (ii) < (iv) < (iii)

C) (ii) < (iii) < (i) < (iv)

D) (iii) > (i) > (iv) > (ii)

• question_answer52) $S-S$bond is not present in:

A) ${{H}_{2}}{{S}_{2}}{{O}_{4}}$

B) ${{H}_{2}}{{S}_{2}}{{O}_{6}}$

C) ${{H}_{2}}{{S}_{2}}{{O}_{8}}$

D) none of these

• question_answer53) A radioactive substance after 48 days remains $25%$of initial then find disintegration constant:

A) $2.89\times {{10}^{-2}}{{T}^{-1}}$

B) $3.89\times {{10}^{-3}}{{T}^{-1}}$

C) $4.89\times {{10}^{-2}}{{T}^{-1}}$

D) none of these

• question_answer54) Correct order of reactivity:

A) ${{I}_{2}}>B{{r}_{2}}>C{{l}_{2}}>{{F}_{2}}$

B) $B{{r}_{2}}>{{I}_{2}}>C{{l}_{2}}>{{F}_{2}}$

C) $C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}>{{F}_{2}}$

D) ${{F}_{2}}>C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}$

• question_answer55) Three elements $A,\,\,B$and$C$having reduction potential$-1.5$,$-0.5$ and $1.5$ then arrange in correct order according to reducing power:

A) $A>B>C$

B) $B>A>C$

C) $C>B>A$

D) $B>C>A$

• question_answer56) The standard reduction potential $E{}^\circ$ for the half reactions are as $Zn\xrightarrow{{}}Z{{n}^{++}}+2{{e}^{-}},\,\,E{}^\circ =0.76V$ $Cu\xrightarrow{{}}C{{u}^{++}}+2{{e}^{-}},\,\,E{}^\circ =0.34V$ The e.m.f. for the cell reaction $Zn+C{{u}^{2+}}\xrightarrow{{}}Z{{n}^{2+}}+Cu$

A) $0.42V$

B) $-0.42V$

C) $-1.1V$

D) $1.1V$

• question_answer57) Variable oxidation state and degenerated orbital shows:

A) $s-$block element

B) $p-$block element

C) $d-$block element

D) all of the above

• question_answer58) Which of the following is more acidic in nature?

A) $HClO$

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

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

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

• question_answer59) Unit of rate constant of zero order reaction is:

A) $tim{{e}^{-1}}$

B) $mol\,\,li{{t}^{-1}}{{\sec }^{-1}}$

C) $litre\,\,mo{{l}^{-1}}{{\sec }^{-1}}$

D) $litre\,\,mo{{l}^{-1}}\sec$

• question_answer60) Mole fraction of a solute in benzene is 0.2 then find molality of solute:

A) $3.2$

B) $2$

C) $4$

D) $3.6$

• question_answer61) What amount of water is added in $40ml$ of $NaOH\,\,(0.1N)$ which is neutralized by $50ml$ of$HCl\,\,(0.2N)$?

A) $80ml$

B) $60ml$

C) $40ml$

D) $90ml$

• question_answer62) Slope between $PV$ and $P$ at constant temperature is:

A) $zero$

B) $1$

C) $\frac{1}{2}$

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

• question_answer63) When pressure is applied to the equilibrium system ice  water. Which of the following phenomenon will happen?

A) More ice will be formed

B) Water will evaporate

C) More water will be formed

D) Equilibrium will not be formed

• question_answer64) For$A\xrightarrow{{}}B,\,\,\Delta H=4\,\,Cal\,\,mo{{l}^{-1}}$,$\Delta S=10\,\,Cal\,\,mo{{l}^{-1}}{{K}^{-1}}$reaction is spontaneous when temperature can be:

A) $400K$

B) $300K$

C) $500K$

D) None of these

• question_answer65) Degree of dissociation of $N{{H}_{4}}OH$ in water is$1.8\times {{10}^{-5}}$, then hydrolysis constant of $N{{H}_{4}}Cl$ is:

A) $1.8\times {{10}^{-5}}$

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

C) $5.55\times {{10}^{-5}}$

D) $5.55\times {{10}^{-10}}$

• question_answer66) A current of strength 2.5 amp was passed through $CuS{{O}_{4}}$ solution for 6 minutes 26 seconds. The amount of copper deposited is: (At. wt. of$Cu=63.5,\,\,1\,\,F=96500$coulomb)

A) $0.3175\,\,g$

B) $3.175\,\,g$

C) $0.635\,\,g$

D) $6.35\,\,g$

• question_answer67) The charge on an electron was discovered by:

A) J.J. Thomson

B) Neil Bohr

D) Millikan

• question_answer68) The normality of mixture obtained by mixing $100ml$ of $0.2\,\,M\,\,{{H}_{2}}S{{O}_{4}}+100\,\,ml$ of$0.2\,\,M\,\,NaOH$is:

A) $0.2$

B) $0.01$

C) $0.1$

D) $0.3$

• question_answer69) The Bohrs orbit radius for the hydrogen atom $(n=1)$ is approximately$0.53\overset{\text{o}}{\mathop{\text{A}}}\,$. The radius for the first excited state $(n=2)$ orbit is:

A) $0.27\overset{\text{o}}{\mathop{\text{A}}}\,$

B) $1.27\overset{\text{o}}{\mathop{\text{A}}}\,$

C) $2.12\overset{\text{o}}{\mathop{\text{A}}}\,$

D) $3.12\overset{\text{o}}{\mathop{\text{A}}}\,$

• question_answer70) A gas has a vapour density$11.2$. The volume occupied by Ig of the gas at NTP is:

A) $1\,\,L$

B) $11.2\,\,L$

C) $22.4\,\,L$

D) $4\,\,L$

• question_answer71) If$n=3$, $f=0$and$m=0$, then atomic number is:

A) $12,\,\,13$

B) $13,\,\,14$

C) $10,\,\,11$

D) $11,\,\,12$

• question_answer72) Which is not a colligative property?

A) Osmotic pressure

B) Optical activity

C) Elevation in boiling point

D) Depression in freezing point

• question_answer73) The rate constant of a first order reaction is $3\times {{10}^{-6}}$ per second and initial concentration is$0.10\,\,M$. Then the initial rate of reaction is:

A) $3\times {{10}^{-6}}m{{s}^{-1}}$

B) $3\times {{10}^{-8}}m{{s}^{-1}}$

C) $3\times {{10}^{-7}}m{{s}^{-1}}$

D) $3\times {{10}^{-9}}m{{s}^{-1}}$

• question_answer74) $C{{H}_{2}}=C{{H}_{2(g)}}+{{H}_{2(g)}}\to C{{H}_{3}}-C{{H}_{3(g)}}$ The heat of reaction is [bond energy of$C-C=80\,\,Kcal,$$C=C=145\,\,kcal,$$C-H=98\,\,kcal,\,\,H-H=103\,\,kcal]$

A) $-14\,\,kcal$

B) $-28\,\,kcal$

C) $-42\,\,kcal$

D) $-56\,\,kcal$

• question_answer75) Tyndall effect is shown by:

A) precipitate

B) sol

C) plasma

D) solution

• question_answer76) If $_{p}{{k}_{a}}$ values of four acids are given below at ${{25}^{o}}C$ the strongest acid is:

A) $2.0$

B) $2.5$

C) $3.0$

D) $4.0$

• question_answer77) The solubility of gas in liquid depend upon:

A) the nature of gas

B) the nature of temperature

C) the nature of solvent

D) all of the above

• question_answer78) Write the $IUPAC$ name of$C{{H}_{3}}-C{{H}_{2}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{2}}-C{{H}_{3}}$

A) 3-methylpentane-3-ol

B) 3-hydroxyhexane

C) 3-hydroxy-3-methyl pentane

D) all of the above

• question_answer79) Structure of natural rubber is

A) ${{H}_{2}}C=\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}$

B) ${{H}_{2}}C=\overset{\begin{smallmatrix} Cl \\ | \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}$

C) ${{H}_{2}}C=\underset{\begin{smallmatrix} | \\ {{C}_{6}}{{H}_{5}} \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}$

D) $-{{(C{{H}_{2}}-C{{H}_{2}}-)}_{n}}$

• question_answer80) $C{{H}_{3}}-C{{H}_{2}}-O-C{{H}_{2}}-C{{H}_{3}}$ reacts with hot and excess HI, then formed product is : $C{{H}_{3}}-C{{H}_{2}}-I$and$C{{H}_{3}}C{{H}_{2}}OH$

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

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

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

D) none of the above

• question_answer81) $X$compounds reacts with $Na$ to give$C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}$, then compound $X$ is

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

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

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

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

• question_answer82) In die following compound, least number of mono chlorination is possible:

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

B) $C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{2}}-C{{H}_{3}}$

C) $C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}}\,-CH$

D) $C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}$

• question_answer83) $C{{H}_{3}}C{{H}_{2}}OH$convert into $C{{H}_{3}}CHO$ in the presence of:

A) $N{{a}_{2}}C{{r}_{2}}{{O}_{7}}$and$NaOH$

B) $N{{a}_{2}}C{{r}_{2}}{{O}_{7}}$and$dil\,\,{{H}_{2}}S{{O}_{4}}$

C) $NaOH$

D) $Fe$in presence of$NaOH$

• question_answer84) Which of the following reactant give Tollens reagent and Fehlings solution test?

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

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

C) $C{{H}_{3}}-\underset{\begin{smallmatrix} |\,| \\ O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}$

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

• question_answer85) The alcohol manufactured from water gas is:

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

B) ${{C}_{2}}{{H}_{5}}OH$

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

D) ${{(C{{H}_{3}})}_{2}}CHOH$

• question_answer86) The most stable alkene is:

A) ${{R}_{2}}C=C{{R}_{2}}$

B) $RCH=CHR$

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

D) $RCH=C{{R}_{2}}$

• question_answer87) The most favourable condition for the manufacture of $N{{H}_{3}}$ is:

A) high temperature and high pressure

B) low temperature and low pressure

C) high temperature and low pressure

D) low temperature and high pressure

• question_answer88) The conversion of benzaldehyde into benzyl alcohol takes place by:

A) Fittig reaction

B) Wurtz Fitting reaction

C) Wurtz reaction

D) Cannizzaros reaction

A) antibiotic

B) antipyretic

C) antimalarial

D) analgesic

• question_answer90) Benzaldehyde gives a positive test with:

A) Tollens reagent

B) Fehling solution

C) Benedicts solution

D) all of the above

• question_answer91) Which of the following is not soluble in$NaOH?$

A) $Fe{{(OH)}_{3}}$

B) $Zn{{(OH)}_{2}}$

C) $Al{{(OH)}_{3}}$

D) $Sn{{(OH)}_{2}}$

• question_answer92) Which of the following has least oxidation state of$Fe$?

A) ${{K}_{3}}[Fe{{(OH)}_{6}}]$

B) ${{K}_{2}}[Fe{{O}_{4}}]$

C) $FeS{{O}_{4}}{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\cdot 6{{H}_{2}}O$

D) ${{[Fe{{(CN)}_{6}}]}^{3-}}$

• question_answer93) Green vitriol is formed by :

A) $Fe{{S}_{2}}+{{H}_{2}}O+{{O}_{2}}$

B) $Fe{{S}_{2}}+{{H}_{2}}O+C{{O}_{2}}$

C) $Fe{{S}_{2}}+CO+C{{O}_{2}}$

D) $Fe{{S}_{2}}+CO$

• question_answer94) $NaOH+{{P}_{4}}+{{H}_{2}}O\xrightarrow{{}}$

A) $P{{H}_{3}}+Na{{H}_{2}}P{{O}_{2}}$

B) $P{{H}_{3}}+N{{a}_{2}}P{{O}_{4}}$

C) $P{{H}_{3}}+N{{a}_{2}}HP{{O}_{2}}$

D) ${{H}_{3}}P{{O}_{4}}+NaO$

• question_answer95) Slag is represented by :

A) $CaSi{{O}_{3}}$

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

C) $Ca{{(OH)}_{2}}$

D) $CaO$

• question_answer96) Which of the following is not a nucleophile?

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

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

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

D) $O{{H}^{-}}$

• question_answer97) Fuming sulphuric acid is:

A) ${{H}_{2}}S{{O}_{4}}+S{{O}_{3}}$

B) ${{H}_{2}}S{{O}_{4}}+S{{O}_{2}}$

C) ${{H}_{2}}S{{O}_{4}}$

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

• question_answer98) On strong heating $MgC{{l}_{2}}\cdot 6{{H}_{2}}O$, the product obtained is:

A) $MgC{{l}_{2}}$

B) $MgO$

C) $MgC{{l}_{2}}\cdot 2{{H}_{2}}O$

D) $MgC{{l}_{2}}\cdot 4{{H}_{2}}O$

• question_answer99) The highest first ionisation potential is of:

A) carbon

B) boron

C) oxygen

D) nitrogen

• question_answer100) In sulphur detection of an organic compound, sodium nitroprusside solution is added to sodium extract. Formation of violet colour is due to :

A) $N{{a}_{3}}Fe{{(CN)}_{6}}$

B) $N{{a}_{3}}[Fe{{(CN)}_{5}}NOSNa]$

C) $Fe{{(CNS)}_{3}}$

D) none of these

• question_answer101) One of the major difficulties in the biological control of insect pest is that:

A) the method is less effective as compared with the use of insecticides

B) the predator does not always survive when transferred to a new environment

C) the predator develop a preference to other diets and may itself become a pest

D) the practical difficulty of introducing the predator to specific area

• question_answer102) The wild type E. coli cells are growing in normal medium with glucose. They are transferred to a medium containing only lactose as sugar. Which of the following changes take place?

A) E. coli cells stop dividing

B) The lac operon is induced

C) The lac operon is repressed

D) All operons are induced

• question_answer103) In India, human population is heavily weighted towards the younger age group as a result of:

A) short life span of many individuals and low birth rate

B) short life span of many individuals and high birth rate

C) long life span of many individuals and high birth rate

D) long life span of many individuals and low birth rate

• question_answer104) When two genetic loci produce identical phenotypes in cis and irons position they are considered to be:

A) pseudoallels

B) multiple allels

C) the part of same gene

D) different genes

• question_answer105) If the DNA codons are $ATG\,ATG\,ATG$ and a cytosine base is inserted at the beginning, then which of the following will result?

A) $C\,ATG\,ATG\,ATG$

B) $CAT\,GAT\,GAT\,G$

C) A non-sense mutation

D) $CA\,TGA\,TGA\,TG$

• question_answer106) If we completely remove the decomposers from an ecosystem, its functioning will be adversely affected because :

A) herbivores will not receive solar energy

B) mineral movement will be blocked very high

C) the rate of decomposition will be very high

D) energy flow will be blocked

• question_answer107) According to accepted concept of hormone action, if receptor molecules are removed from target organs, then the target organ will:

A) continue to respond to hormone but in opposite way

B) continue to respond to the hormone without any difference

C) continue to respond to hormone but will require higher concentration

D) not respond to the hormone

• question_answer108) Although much $C{{O}_{2}}$ is carried in blood, yet blood does not become acidic because:

A) $C{{O}_{2}}$ is continuously diffused through the tissues and is not allowed to accumulate

B) $C{{O}_{2}}$ combines with water to form ${{H}_{2}}C{{O}_{3}}$ which is neutralized by $N{{a}_{2}}C{{O}_{3}}$

C) in $C{{O}_{2}}$ transport, blood buffers play an important role

D) $C{{O}_{2}}$ is absorbed by leucocytes

• question_answer109) The closely related morphologically similar sympatric population, but reproductively isolated are designated as :

A) demes

B) clones

C) sibling species

D) dines

• question_answer110) By which nervous system and of what type the blood is supplied into visceral organs?

A) Sympathetic nervous system, voluntary

B) Sympathetic nervous system, involuntary

C) Parasympathetic nervous system, involuntary

D) Both SNS and PNS involuntary

• question_answer111) Which of the following is a typical example of feed back inhibition?

A) Sulpha drugs and folic acid synthesizer bacteria

B) Allosteric inhibition of hexokinase by glucose $6-$phosphate

C) Reaction between succinic dehydrogenase and succinic acid

D) Cyanide and cytochrome reaction

• question_answer112) Evolutionary convergence is characterized by:

A) development of dissimilar characteristics in closely related groups

B) replacement of common characteristics in different groups

C) development of a common set of characteristics in groups of different ancestry

D) development of characteristics by random mating

• question_answer113) If a person shows production of inter ferons in his body, the chances are that he got an infection of:

A) malaria

B) measles

C) typhoid

D) tetanus

• question_answer114) Which of the following communities is more vulnerable to invasion by outside animals and plants?

A) Temperate forests

B) Tropical evergreen

C) Oceanic island communities

D) Mangroves

• question_answer115) Maurers dots are observed in the erythrocytes of man if these are infected with:

A) Plasmodium malariae

B) Plasmodium vivax

C) Plasmodium falciparum

D) Plasmodium ovale

A) pure culture of a microbe without any nutrient

B) pure culture without any contamination

C) culture of tissue

D) culture of gene

• question_answer117) A chemical substance when irradiated with UV rays, absorbs radiations and emits visible light is called:

A) luminescent

B) flourochrome

C) bioluminescence

D) metachrome

A) staining of a cell component by a stain that gives other colour

B) behaviour of a cell

C) behaviour of chromosomes at metaphase

D) development of scientific attitude

• question_answer119) Energy transfers or transformations are never 100% efficient. This is due to:

A) entropy

B) homeostasis

C) catabolism

D) anabolism

A) progresses away from the replication fork

B) occur in$3\xrightarrow{{}}5$direction

C) produces Okazaki fragment

D) depend on the action of DNA polymerase

• question_answer121) Why does cytosine make pair with guanine and not with adenine?

A) $C-A$ pair would be too wide to fit in the double helix

B) $C$ and $A$ are both polar

C) $C-A$ pair would not reach across the double helix

D) The functional groups that form $H-$bond are not complementary between $C$ and$A$

• question_answer122) Sperm enters from which part of egg?

A) From animal pole in unfertilized egg

B) From vegetal pole in unfertilized egg

C) Anywhere in unfertilized egg except animal pole

D) All of these

• question_answer123) Photorespiration involves the oxidation of:

A) PGA

B) $RuBP$

C) chlorophyll$-a$

D) both $a$ and$b$

A) autosomes

B) $X-$chromosome

C) $Y-$chromosome

D) both $b$ and$c$

• question_answer125) St. Anthonys fire disease is caused by:

A) bacteria

B) fungus

C) nematodes

D) polychaete

A) contain DNA and RNA

B) demonstrate a long circular strand of DNA not found enclosed in a nuclear membrane

C) are bacteria

D) all of these

• question_answer127) Most animals are :

A) diploid

B) haploid

C) heterotrophic

D) both $a$ and $c$

• question_answer128) In bony vertebrates, the laying down of bone is often preceded by the presence of:

A) chitin

B) starch

C) cartilage

D) platelets

• question_answer129) The movement of the nerve impulse across synaptic cleft is primarily:

A) a chemical event

B) a physical event

C) an electrical event

D) a biological event

• question_answer130) Acetylchol in esterase enzyme splits acetylcholine into:

A) acetone and choline

B) acetic acid arid choline

C) aspartic acid and actylcho line

D) ammo acid and choline

• question_answer131) he nerve net of Hydra lacks :

A) neurons

B) connections

C) dendrites

D) directions in impulse

• question_answer132) Annelids have a central nerve cord that is:

A) impermeable to${{K}^{+}}$

B) hollow

C) dorsal

D) ventral

• question_answer133) The main component of photochemical smog is:

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

B) $PAN$

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

D) both$b$and$c$

• question_answer134) Geotrophic response is perceived by:

A) mature roots

B) elongating roots

C) root cap

D) root hairs

• question_answer135) Which of the following toxic material was present in Minimata bay of Japan?

A) $Cd$

B) $Pb$

C) $Mg$

D) $Hg$

• question_answer136) Excess atmospheric $C{{O}_{2}}$ increases greenhouse effect as$C{{O}_{2}}$:

A) precipitates dust in the atmosphere

B) reduces atmospheric pressure

C) is opaque to infra red rays

D) is not opaque to infra red rays

• question_answer137) A mutagen pollutant is:

A) organophosphates

B) resins

C) chlorinated hydrocarbons

D) nitrogen oxides

• question_answer138) Photophosphorylation differs from oxidative phosphorylation in requiring:

A) input of energy in the form of light

B) input of energy in the form of heat

C) input of energy in the form of AMP

D) input of energy in the form of NAD

• question_answer139) Halophilic archae bacterium e.g. Halo bacterium salinarum found in great salt lake and dead sea cannot live in:

A) less than $3\,M\,NaCl$ concentration

B) less than $5M\,NaCl$ concentration

C) more than$4M\,NaCl$ concentration

D) more than $3M\,NaCl$ concentration

• question_answer140) The ATP synthase of chloroplasts is like that of:

A) peroxisomes

B) golgi body

C) micro somes

D) mitochondria

• question_answer141) An orchid resembling the female of an insect so as to be able to get pollinated, is due to a phenomenon of:

A) mimicry

B) pseudo copulation

C) pseudo pollination

D) pseudoparthenocarpy

• question_answer142) The first life on earth consisted of:

A) provirus

B) protovirus

C) virus

D) bacteria

• question_answer143) Coacervates belongs to category of:

A) cyanobacteria

B) protozoans

C) molecular aggregates

D) molecular aggregates surrounded by lipid membrane

• question_answer144) The oldest fossil record from India is of a blue-green alga which is 2.9 billion years old. It is:

A) Archaeospheroides

B) Archaeoptenyx

C) Chlamydomonas

D) Stromatolites

A) life cycle showing sporic meiosis

B) life cycle showing zygotic meiosis

C) life cycle showing gametic meiosis

D) both $b$ and $c$

• question_answer146) Euglenoid species that have chlorophyll are:

A) facultative autotrophs

B) facultative heterotrophs

C) obligate heterotrophs

D) obligate autotrophs

• question_answer147) Which creatures are direct or indirect food of all creatures on the oceans surface?

A) Protozoans

B) Phytoplankton

C) Fish

D) Aquatic insects

• question_answer148) Cellulose digestion in termites is carried out by:

A) Monocystis

B) Trichomonas

C) Trichonympha

D) Lophomonas

• question_answer149) Cellulose digesting zooflagellate found in wood cockroaches is:

A) Lophomonas

B) Trichomonas

C) Trichonympha

D) Leishmania

• question_answer150) The fluidity of membranes in a plant in cold weather may be maintained by:

A) increasing the number of phospholipids with unsaturated hydrocarbon tails

B) increasing the proportion of integral proteins

C) increasing concentration of cholesterol in membrane

D) increasing the number of phospholipids with saturated hydrocarbon tail

• question_answer151) The membrane potential of a cell favours the:

A) movement of cations into the cell

B) movement of anions into the cell

C) action of a proton pump

D) action of an electrogenic pump

• question_answer152) A plant cell has 12 chromosomes at the end of mitosis. How many chromosomes would it have in the ${{G}_{2}}$ phase of its next cell cycle?

A) 6

B) 8

C) 12

D) 24

• question_answer153) In animal cells, cytokinesis involves:

A) the separation of sister chromatids

B) the contraction of the contractile ring of micro filaments

C) depolymerization of kinetochore microtubules

D) a protein kinase that phosphorylates other enzymes

• question_answer154) To cuvier, the differences in fossils from different strata were evidences for:

A) divine creation

B) evolution by natural selection

C) continental drift

D) local catastrophic events such as droughts or floods

• question_answer155) Darwin proposed that new species evolve from ancestral forms by:

B) the inheritance of acquired adaptation to the environment

C) the struggle for limited resources

D) the accumulation of mutations

• question_answer156) The best description of natural selection is:

A) the survival of the fittest

B) the struggle for existence

C) the reproductive success of the members of a population best adapted to the environment

D) a change in the proportion of variation within a population

• question_answer157) Which of the following gene is responsible for biological nitrogen fixation?

A) Nitrogenase

B) Nif gene

C) Yeast alanine $t-$RNA synthetase

D) RNA synthetase

• question_answer158) Carrageen, a jelly-like substance is obtained from:

A) Chondrus

B) Fucus

C) Sargassum

D) Ulothrix

• question_answer159) In Amorphophalhis, vegetative reproduction occurs through:

A) rhizome

B) corm

C) spores

D) conidia

• question_answer160) Haploid (n) plants are preferred over diploid plants for the study of mutation because:

A) in haploids culturing is easy

B) in haploids only dominant mutation expresses

C) in haploid only recessive mutation expresses

D) all the mutations express

• question_answer161) Which of the following algae are suitable for human consumption?

A) Laminaria and Fucus

B) Gracilaria and Chondrus

C) Porphyra and Spirogyra

D) Rhodymania and Porphyra

• question_answer162) Chemicals which are synthesised by one organism and affect the behaviour of another member of the same species are called?

A) Enzymes

B) Hormones

C) Flavoids

D) Pheromones

• question_answer163) Encysted, non-motile and non-feeding infectious stage of Entamoeba histolytica is called:

A) schizont

B) zygote

C) minutaform

D) abiotic form

• question_answer164) Monoclonal antibodies are used for :

A) immune suppression for kidney transplantation

B) growth induction

C) suppression of symptoms of rabies

D) treatment of breast cancer

• question_answer165) The band of fibres which join corpora quadrigemina to cerebellum is called:

A) pons varolii

B) valve of vieussens

C) corpus callosum

D) corpus striatum

• question_answer166) Which of the following flower shows nyctinastic movement?

A) Pentapetes

B) Albizzia lebbek

C) Mimosa pudica

D) Bryophyllum

• question_answer167) Ephemerals are xerophytes that are:

A) drought resisting

B) drought enduring

C) drought escaping

D) none of these

• question_answer168) Which of the following have succulent root?

A) Opuntia

B) Aloe

C) Agave

D) Asparagus

• question_answer169) Plants which behave as mesophytes in rainy season and as xerophytes in summers are called?

A) Xerophytes

B) Mesophytes

C) Trophophytes

D) Phreatophytes

• question_answer170) In the initial stages of protoplast culture sorbitol/mannitol is added:

A) as an additional source of carbon

B) as an additional source of energy

C) to keep cells alive after the removal of cell wall

D) as an osmotic stabilizer

• question_answer171) The effect of todays radioactive fallout will probably be more harmful to children of future generation than to children now living because:

A) infants are more susceptible to radiations

B) susceptibility to radiation increase with age

C) mutated genes are frequently recessive

D) contamination of milk supply is not cumulative

• question_answer172) The molecular action of UV light is mainly reflected through:

A) photodynamic action

B) formation of pyrimidine

C) formation of sticky metaphases

D) destruction of hydrogen bonds between DNA strands

• question_answer173) In crop improvement programme haploids are of great importance because they:

A) grow better under adverse conditions

B) are useful in the study of meiosis

C) requires only about half the amount of chemical fertilizers compared to diploids

D) give homozygous lines

• question_answer174) The method of growing micro-organisms as a thin layer on nutrient medium is known as:

A) suspended growth system

B) support growth system

C) thin layer growth system

D) all of the above

• question_answer175) Galic acid used in making ink is obtained with the help of:

A) Aspergillus niger

B) Penicillium purpurogenum

C) Streptococcus lactis

D) Lactobacillus bulgaricus

• question_answer176) First vitamin to be produced through fermentation process using a wild bacterium was:

A) vitamin$D$

B) vitamin$C$

C) vitamin${{B}_{12}}$

D) vitamin${{B}_{2}}$

• question_answer177) Which enzyme is useful as colour brightening agent in detergent industry?

A) Amylase

B) Lipase

C) Protease

D) Cellulase

• question_answer178) Which one of the following combinations of organisms are responsible for the formation and flavour of yoghurt?

A) Lactobacillus casei and Streptococcus thermophiles

B) Rhizobium meliloti and Azotobacter

C) Bacillus subtilis and E. coli

D) Bacillus megathermus and Xanthomonas sp

• question_answer179) Hybridomas are result of the fusion of:

A) normal antibody producing cell with myeloma

B) abnormal antibody producing cell with myeloma

C) male reproductive cell with myeloma

D) female reproductive cell with myeloma

• question_answer180) Morphactins are derivatives of:

A) fluorene carboxylic acid

B) fluoro-malic acid

C) chlorofluoro carbons

D) methanogens

• question_answer181) Which of the following types of leucocytes secretes heparin and histamine?

A) Acidophils

B) Monocytes

C) Basophils

D) Neutrophils

• question_answer182) Which of the following coagulating factor of blood is hypothetical?

A) Christmas factor (IX)

B) Accelerin (VI)

C) Laki lovand factor (XIII)

D) Stuart power factor (X)

• question_answer183) Wolffian body also known as :

A) pronephros

B) mesonephros

C) metanephros

D) abnormal heart

• question_answer184) Neopallium is found in the brain of :

A) amphibia

C) mammals

D) both $b$ and $c$

• question_answer185) Tyioses are balloon like ingrowths in vessels developing from the adjoining:

A) fibres through pits on vessel wall

B) fibres through the general surface of vessel wall

C) parenchyma through pits on vessel wall

D) parenchyma through the general surface of vessel wall

• question_answer186) The latest view for the origin of viruses is:

A) these have arisen from nucleic acid and protein found in primitive soup

B) these arose from bacteria as a result of the loss of cell wall, ribosome etc.

C) these arose from some bacteria which had developed a nucleus only

D) these are modified plasmids which are in fact the fragments of the nucleic acids of the host

• question_answer187) Within the nucleus, DNA is organized along with proteins into material called:

A) nuclear lamina

B) chromatin

C) chromosome

D) chromatid

• question_answer188) Which of the following is not a function of vacuole in plant cell?

A) Storage

B) Waste disposal

C) Cell elongation and protection

D) Production of hydrogen peroxide

• question_answer189) Which statement regarding coenzyme is incorrect?

A) Every coenzyme is a cofactor and every cofactor is a coenzyme

B) Every coenzyme is a cofactor but every cofactor is not a coenzyme

C) Most of the coenzymes are nucleotides and are composed of vitamins

D) Coenzymes are the active constituents of enzymes

• question_answer190) Ethylene is connected with:

A) aerobic respiration

B) climacteric

C) anaerobic

D) fermentation

• question_answer191) Melanuria is caused by the abnormal catabolism of:

A) alanine

B) tyrosine

C) proline

D) tryptophan

• question_answer192) During oxidation long chain fatty acids are first converted to acyl $CoA$ in the:

A) cytosol

B) mitochondria

C) lysosomes

D) microsomes

A) carbohydrates

B) fats

C) proteins

D) acetoacetate

• question_answer194) Condensation product of adenine, ribose and phosphoric acid is named as:

D) none of these

• question_answer195) Synthesis of RNA molecule is terminated by a signal which is recognised by:

A) $\alpha$(alpha) factor

B) $\gamma$(gamma) factor

C) $\rho$(rho) factor

D) $\delta$(delta) factor

• question_answer196) A portion of uric acid is converted to urea and ammonia by intestinal:

A) urogenolysis

B) ureolysis

C) uricolysis

D) ureotolysis

• question_answer197) DNA is denatured by :

A) lieat

B) acid

C) DNA polymerase

D) both $a$ and $b$

• question_answer198) Gout is a disease that affects the joints and leads to arthritis. It is associated with an abnormality of:

A) pyrimidine metabolism

B) purine metabolism

C) fat metabolism

D) protein metabolism

• question_answer199) Calcium is required for the activation of the enzyme:

A) isocitrate dehydrogenase

B) ATPase

C) fummarase

D) succinate thiokinase

• question_answer200) Wilsons disease is associated with the abnormal metabolism of:

A) iron

B) potassium

C) iodine

D) copper