# Solved papers for Punjab Medical Punjab - MET Solved Paper-2011

### done Punjab - MET Solved Paper-2011

• question_answer1) The electromotive force of primary cell is $2\,\,V$. When it is short circuited it gives a current of $4\,\,A$. Its internal resistance in ohm is

A) 0.5

B) 5.0

C) 2.0

D) 8.0

• question_answer2) The value of electric permittivity of free space is

A) $9\times {{10}^{9}}N{{c}^{2}}/{{m}^{2}}$

B) $8.9\times {{10}^{-12}}N{{m}^{2}}/{{C}^{2}}s$

C) $8.9\times {{10}^{-12}}{{C}^{2}}/N{{m}^{2}}$

D) $9\times {{10}^{9}}{{C}^{2}}/N{{m}^{2}}$

• question_answer3) Which of the following is not the unit of energy?

A) Calorie

B) Joule

C) Electron-volt

D) Watt

• question_answer4) A body moves with a uniform acceleration$a$and zero initial velocity. Another body$B$starts from the same point moves in the same direction with a constant velocity$v$. The two bodies meet after a time$t$. The value of$t$is

A) $\frac{2v}{a}$

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

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

D) $\sqrt{\frac{v}{2a}}$

• question_answer5) A body starts to fall freely under gravity. The distances covered by it in first, second and third seconds are in ratio

A) $1:3:5$

B) $1:2:3$

C) $1:4:9$

D) $1:5:6$

• question_answer6) Galileo writes that for angles of projection of a projectile at angles$({{45}^{o}}+\theta )$and$({{45}^{o}}-\theta )$, the horizontal ranges described by the projectile are in the ratio

A) $2:1$

B) $1:2$

C) $1:1$

D) $2:3$

• question_answer7) Two masses$M$and$m$are attached to a vertical axis by weightless thread of combined length$l.$ They are set in rotational motion in a horizontal plane about this axis with constant angular velocity$\omega$. If the tensions in the thread are same during motion, the distance of M from the axis is,

A) $\frac{Ml}{M+m}$

B) $\frac{ml}{M+m}$

C) $\frac{M+m}{M}l$

D) $\frac{M+m}{m}l$

• question_answer8) A uniform rope of length L, resting on a frictionless horizontal surface, is pulled at one end by a force F. The tension in the rope at a distance I from this end is

A) $F$

B) $\frac{l}{L}F$

C) $\frac{L}{l}F$

D) $\left( 1-\frac{l}{L} \right)F$

• question_answer9) A body of mass $5kg$ is moving with a momentum of$10\,kg\,m/s$. A force of$0.2\,\,N$acts on it in the direction of motion of the body for 10 s. The increase in its kinetic energy is

A) $2.8\,\,J$

B) $3.2\,\,J$

C) $3.8\,\,J$

D) $4.4\,\,J$

• question_answer10) The potential energy of a weightless spring compressed by a distance a is proportional to

A) $a$

B) ${{a}^{2}}$

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

D) ${{a}^{0}}$

• question_answer11) A thin circular ring of mass$M$and radius$r$is rotating about its axis with constant angular velocity$\omega$. Two objects each of mass$m$, are placed gently at the opposite ends of diameter of the ring. The ring now rotates with an angular velocity

A) $\omega M/(M+m)$

B) $\omega M/(M+2m)$

C) $\omega (M-2m)/(m+2M)$

D) $\omega (M+2m)/M$

• question_answer12) A wheel is rotating at$900\,\,rpm$about its axis. When the power is cut off it comes to rest in$1\min$. The angular retardation in$rad/{{s}^{2}}$is

A)

B) $\pi /2$

C) $\pi /6$

D) $\pi /8$

• question_answer13) In a photoelectric experiment, the. Stopping potential for incident light of wavelength $4000\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$ is $2\,V$ . If the wavelength is changed to$3000\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$, the stopping potential is

A) $2\,\,V$

B) less than$2\,\,V$

C) more than$2\,\,V$

D) zero

• question_answer14) The wavelength of the most energetic$X-$ray emitted when a metal target is bombarded by $100\text{ }keV$ electrons, is approximately

A) $12\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$

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

C) $0.31\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$

D) $0.124\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$

• question_answer15) The wavelength of the first line of Balmer series is$6563\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$. The Rydberg constant for hydrogen is about

A) $1.09\times {{10}^{7}}\text{per}\,\,m$

B) $1.09\times {{10}^{8}}\text{per}\,\,m$

C) $1.09\times {{10}^{9}}\text{per}\,\,m$

D) $1.09\times {{10}^{5}}\text{per}\,\,m$

• question_answer16) $200\,\,MeV$of energy may be obtained per fission of${{U}^{235}}$. A reactor is generating$1000kW$of power. The rate of nuclear fission in the reaction (in per second) is

A) $1000$

B) $2\times {{10}^{8}}$

C) $3.125\times {{10}^{16}}$

D) $931$

• question_answer17) $N$atoms of a radioactive element emit$n-$alpha particles per second. The half-life of the element is

A) $\frac{n}{N}\text{second}$

B) $\frac{N}{n}\text{second}$

C) $\frac{0.693n}{n}\text{second}$

D) $\frac{0.693n}{N}\text{second}$

• question_answer18) The depletion layer of a$p-n$junction

A) is of constant width irrespective of the bias

B) acts like an insulating zone under reverse bias

C) has a width that increases with an increase in forward bias

D) is depleted of ions

• question_answer19) An oscillator is basically an amplifier with gain

A) less than unity

B) more than unity

C) zero

D) 0.5

• question_answer20) A charge of$5\,\,C$ experiences a force of$5000\,\,N$when it is kept in a uniform electric field. What is the potential difference between two points separated by a distance of$1\,\,cm$?

A) $10\,\,V$

B) $250\,\,V$

C) $1000\,\,V$

D) $2500\,\,V$

• question_answer21) In the given circuit if point$C$is connected to the earth and a potential of$+2000\,\,V$is given to the point$A$, the potential at$B$is

A) $1500\,\,V$

B) $1000\,\,V$

C) $500\,\,V$

D) $400\,\,V$

• question_answer22) A string vibrates according to the equation $y=5\sin \left( \frac{2\pi x}{3} \right)\cos 20\pi t$where$x$and$y$are in cm and t in second. The distance between two adjacent nodes is

A) $3cm$

B) $4.5cm$

C) $6cm$

D) $1.5cm$

• question_answer23) A single slit is located effectively at infinity in front of a lens of focal length$1\,\,m$and it is illuminated normally with light of wavelength$600\,\,nm$. The first minima on either side of central maximum are separated by$4\,\,mm$. Width of the slit is

A) $0.1mm$

B) $0.2mm$

C) $0.3mm$

D) $0.4mm$

• question_answer24) Light wave is travelling along $y-$direction. If the corresponding$\mathbf{E}$vector at any time is along the $x-$axis, the direction of $\mathbf{B}$ vector at that time is along

A) $y-$axis

B) $x-$axis

C) $z-$axis

D) $-z-$axis

• question_answer25) An equiconvex lens of glass of focal length$0.1m$is cut along a plane perpendicular to principal axis into two equal parts. The ratio of focal lengths of new lenses formed is

A) $1:1$

B) $1:2$

C) $2:1$

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

• question_answer26) Time taken by light to cross a slab of thickness of$4mm$and refractive index 3 will be

A) $4\times {{10}^{-11}}s$

B) $2\times {{10}^{-11}}s$

C) $16\times {{10}^{-11}}s$

D) $8\times {{10}^{-30}}s$

• question_answer27) The value of the horizontal component of the earths magnetic field and angle of dip are$1.8\times {{10}^{-5}}Wb/{{m}^{2}}$and${{30}^{o}}$, respectively at some place. The total intensity of earths magnetic field at that place will be.

A) $2.08\times {{10}^{-5}}Wb/{{m}^{2}}$

B) $3.67\times {{10}^{-5}}Wb/{{m}^{2}}$

C) $3.18\times {{10}^{-5}}Wb/{{m}^{2}}$

D) $5.0\times {{10}^{-5}}Wb/{{m}^{2}}$

• question_answer28) A generator produces a voltage that is given by$V=240\sin 120t$volt, where t is in seconds. The frequency and$\text{rms}$voltage are

A) $60Hz$and$240V$

B) $19Hz$and$120V$

C) $19Hz$and$170V$

D) $754Hz$and$170V$

• question_answer29) The pole pieces of the magnet used in a pivoted coil galvanometer are

A) plane surfaces of a bar magnet

B) plane surface of a horse-shoe magnet

C) cylindrical surfaces of a bar magnet

D) cylindrical surfaces of a horse-shoe magnet

• question_answer30) A$50\,\,V$potential difference is suddenly applied to a coil with$L=5\times {{10}^{-2}}$and$R=180\Omega$. The rate of increase of current after$0.001s$is

A) $27.3\,\,A/s$

B) $27.8\,\,A/s$

C) $2.73\,\,A/s$

D) $2.78\,\,A/s$

• question_answer31) A metal wire of specific resistance$64\times {{10}^{-6}}\Omega cm$and length $198cm$ has a resistance of$7\Omega$. The radius of the wire will be

A) $2.4cm$

B) $0.24cm$

C) $0.024\text{ }cm$

D) $24cm$

• question_answer32) An electric heater, kept in vacuum, is heated continuously by passing electric current. Its temperature

A) will go on rising with time

B) will stop rising after sometime as it will loose heat to the surroundings by conduction

C) will rise for sometime and thereafter will start falling

D) will become constant after sometime because of loss of heat due to radiation

• question_answer33) Two straight parallel wires both carrying$10\,\,A$current in the same direction attracts each other with a force of$1\times {{10}^{-3}}\,\,N$. If both currents are doubled, the force of attraction will be

A) $1\times {{10}^{-3}}N$

B) $2\times {{10}^{-3}}N$

C) $4\times {{10}^{-3}}N$

D) $0.25\times {{10}^{-3}}N$

• question_answer34) A torch battery consisting of two cells of$1.45\,\,V$and an internal resistance$0.15\Omega$, each cell sending current through the filament of the lamps having resistance$1.5\Omega$. The value of current will be

A) $16.11\,\,A$

B) $1.611\,\,A$

C) $0.1611\,\,A$

D) $2.6\,\,A$

• question_answer35) An external resistance$R$is connected with a battery of $emf\,\,V$ and internal resistance$r$. Then heat produced in resistance $R$ will be maximum, if value of $R$ is

A) $r$

B) $r/2$

C) $2r$

D) infinite

• question_answer36) Two thin long parallel wires separated by a distance $r$ carry equal currents$i$. The magnitude of the force per unit length exerted by one wire .on the other wire will be

A) ${{\mu }_{0}}i/2\pi r$

B) ${{\mu }_{0}}{{i}^{2}}/{{r}^{2}}$

C) ${{\mu }_{0}}{{i}^{2}}/2\pi r$

D) ${{\mu }_{0}}i/{{r}^{2}}$

• question_answer37) The expression for thermo $emf$ in a thermocouple is given by the relation$E=40\,\,\theta -\frac{{{\theta }^{2}}}{20}$ When $\theta$ is the temperature difference of two junction. For this the neutral temperature will be

A) ${{400}^{o}}C$

B) ${{300}^{o}}C$

C) ${{200}^{o}}C$

D) ${{100}^{o}}C$

• question_answer38) The $X-$ray tube is operated at$50\,\,kV$. The minimum wavelength produce is

A) $0.5\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$

B) $0.75\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$

C) $0.25\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$

D) $1.0\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$

• question_answer39) Bulk modulus of water is$2\times {{10}^{9}}N/{{m}^{2}}$. The change in pressure required to increase the density of water by 0.1 % is

A) $2\times {{10}^{9}}N/{{m}^{2}}$

B) $2\times {{10}^{8}}N/{{m}^{2}}$

C) $2\times {{10}^{6}}N/{{m}^{2}}$

D) $2\times {{10}^{4}}N/{{m}^{2}}$

• question_answer40) A cyclotron can accelerate

A) $\beta -$particle

B) $\alpha -$particle

C) high-velocity gamma rays

D) high velocity X-rays

• question_answer41) The diameter of a flywheel is increased by 1%. Increase in its moment of inertia about the central axis is

A) $1%$

B) $0.5%$

C) $2%$

D) $4%$

• question_answer42) The ratio of the specific charge of an electron to that of an $\text{ }\!\!\alpha\!\!\text{ -}$particle is

A) $1:2$

B) $1:\frac{1}{4}$

C) $1:4$

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

• question_answer43) A particular star assuming it as a black body has a surface temperature of about$5\times {{10}^{4}}K$. The wavelength in nanometre at which its radiation becomes maximum is$(b=0.0029\,\,m/c)$

A) 48

B) 58

C) 60

D) 70

• question_answer44) Which of the following can cause the null point of a potentiometre to shift beyond the wire?

A) Shorter length of wire

B) Longer length of wire

C) Low$emf$of auxiliary battery

D) High$emf$of auxiliary battery

• question_answer45) The kinetic energy of an electron is$5eV$. Calculate the de-Broglie wavelength associated with it$(h=6.6\times {{10}^{-34}}J\,\,s,$${{m}_{e}}=9.1\times {{10}^{-31}}kg)$

A) $5.47\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$

B) $10.9\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$

C) $2.7\,\,\overset{\text{o}}{\mathop{\text{A}}}\,$

D) None of the above

• question_answer46) A ray of light is incident at polarising angle such that its deviation is ${{24}^{o}}$, then angle of incidence is

A) ${{24}^{o}}$

B) ${{57}^{o}}$

C) ${{66}^{o}}$

D) ${{90}^{o}}$

• question_answer47) A particle of mass m is projected with velocity$v$making an angle of ${{45}^{o}}$ with the horizontal. When the particle lands on the level ground the magnitude of the change in its momentum will be

A) $2\,\,mv$

B) $\frac{mv}{\sqrt{2}}$

C) $mv\sqrt{2}$

D) zero

• question_answer48) A Carnot engine takes heat from a reservoir at${{627}^{o}}C$and rejects heat to a sink at${{27}^{o}}C$. Its efficiency will be

A) $\frac{3}{5}$

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

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

D) $\frac{200}{209}$

• question_answer49) If${{r}_{1}}$and${{r}_{2}}$are the radii of the atomic nuclei of mass number 64 and 125 respectively, then the ratio$\left( \frac{{{r}_{1}}}{{{r}_{2}}} \right)$is

A) $\frac{64}{125}$

B) $\sqrt{\frac{64}{125}}$

C) $\frac{5}{4}$

D) $\frac{4}{5}$

• question_answer50) The working of which of the following is similar to that of a slide projector?

A) Electron microscope

B) Scanning electron microscope

C) Transmission electron microscope

D) Atomic force microscope

• question_answer51) Which of the following compounds are tranquilizer on the basis of their medicinal properties?

A) Chloramphenicol

B) Seconal

C) Luminal

D) Both (b) and (c)

• question_answer52) In alkaline earth metal sulphates, the value of hydration energy decreases down the group because of the

A) decrease in size

B) increase in size

C) greater lattice energy

D) None of the above

• question_answer53) Which of the following is used in the preparation of chlorine?

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

B) Only$KMn{{O}_{4}}$

C) Both$Mn{{O}_{2}}$and$KMn{{O}_{4}}$

D) Either$Mn{{O}_{2}}$or$KMn{{O}_{4}}$

• question_answer54) Which of the following configuration is associated with biggest jump between 2nd and 3rd$IE$?

A) $1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{2}}$

B) $1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{6}},\,\,3{{s}^{1}}$

C) $1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{6}},\,\,3{{s}^{2}}$

D) $1{{s}^{2}},\,\,2{{s}^{2}}2{{p}^{1}}$

• question_answer55) Calculate$\Delta {{G}^{o}}$for conversion of oxygen to ozone,$\frac{3}{2}{{O}_{2}}(g)\xrightarrow{{}}{{O}_{3}}(g)$at$298\,\,K$, if${{K}_{p}}$for this conversion is$2.47\times {{10}^{-29}}$.

A) $163\,\,kJ\,\,mo{{l}^{-1}}$

B) $2.4\times {{10}^{2}}\,\,kJ\,\,mo{{l}^{-1}}$

C) $1.63\,\,kJ\,\,mo{{l}^{-1}}$

D) $2.38\times {{10}^{6}}\,\,kJ\,\,mo{{l}^{-1}}$

• question_answer56) Which gives only mono substituted product?

A) $o-$dinitrobenzene

B) $m-$dinitrobenzene

C) $p-$dinitrobenzene

D) Nitrobenzene

• question_answer57) The${{K}_{sp}}$of$Mg{{(OH)}_{2}}$is$1\times {{10}^{-12}}$. $0.01M$$Mg{{(OH)}_{2}}$will precipitate at the limited$pH$of

A) 3

B) 9

C) 5

D) 8

• question_answer58) Which of the following transition have minimum wavelength?

A) ${{n}_{4}}\to {{n}_{1}}$

B) ${{n}_{2}}\to {{n}_{1}}$

C) ${{n}_{4}}\to {{n}_{2}}$

D) ${{n}_{3}}\to {{n}_{1}}$

• question_answer59) $C{{H}_{3}}COOH$is reacted with$CH\equiv CH$in presence of$H{{g}^{2+}}$the product is

A) $\underset{\begin{smallmatrix} | \\ C{{H}_{2}} \end{smallmatrix}}{\mathop{C{{H}_{2}}}}\,(OOC{{H}_{3}})$

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

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

D) None of the above

• question_answer60) Which of the following metal does not react with the solution of copper sulphate?

A) $Fe$

B) $Zn$

C) $Mg$

D) $Ag$

• question_answer61) The reaction,$A+B+C\xrightarrow{{}}Z$occurs by the following mechanism

 (i)$A+B\to Y$(fast) (ii)$X+C\to Y$(slow) (iii) $Y+B\to Z$(very fast)
Rate law for this reaction is

A) $k[C]$

B) $k[A]{{[B]}^{2}}[C]$

C) $k[Z]$

D) $k[X][Y][Z]$

• question_answer62) $\underset{\begin{smallmatrix} -10.7 \\ {{S}^{o}}(298\,\,K) \\ JK\,\,mo{{l}^{-1}} \end{smallmatrix}}{\mathop{{{H}^{+}}(aq)}}\,+O{{H}^{-}}(aq)\xrightarrow{{}}\underset{+70}{\mathop{{{H}_{2}}O}}\,(l)$Standard entropy change for the above reaction is

A) $60.3\,\,J{{K}^{-1}}mo{{l}^{-1}}$

B) $80.7\,\,J{{K}^{-1}}mo{{l}^{-1}}$

C) $-70\,\,J{{K}^{-1}}mo{{l}^{-1}}$

D) $+10.7\,\,J{{K}^{-1}}mo{{l}^{-1}}$

• question_answer63) Which of the following is an example of coordination isomerism?

A) $[Co{{(N{{H}_{3}})}_{3}}{{({{H}_{2}}O)}_{2}}Cl]B{{r}_{2}}$

B) $[Co{{(N{{H}_{3}})}_{6}}][Cr{{({{C}_{2}}{{O}_{4}})}_{3}}]$

C) $[Co{{(N{{H}_{3}})}_{5}}N{{O}_{3}}]S{{O}_{4}}$

D) $[Pt{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]B{{r}_{2}}$

• question_answer64) Which of the following is threo isomer? $\underset{(I)}{\mathop{\underset{A}{\mathop{\underset{X-\underset{|}{\overset{|}{\mathop{C-}}}\,Z}{\overset{\begin{smallmatrix} Y \\ | \end{smallmatrix}}{\mathop{X-C-Z}}}\,}}\,}}\,\,\,\,\,\,\,\,\underset{(II)}{\mathop{\underset{A}{\mathop{\underset{Z-\underset{|}{\overset{|}{\mathop{C-}}}\,X}{\overset{\begin{smallmatrix} Y \\ | \end{smallmatrix}}{\mathop{X-C-Z}}}\,}}\,}}\,\,\,\,\,\,\,\,\underset{(III)}{\mathop{\underset{A}{\mathop{\underset{Z-\underset{|}{\overset{|}{\mathop{C-}}}\,X}{\overset{\begin{smallmatrix} Y \\ | \end{smallmatrix}}{\mathop{X-C-Y}}}\,}}\,}}\,$

A) Only I

B) Only II

C) Only III

D) All of the above

• question_answer65) The$IUPAC$name of$C{{H}_{3}}CH=CHCOO{{C}_{2}}{{H}_{5}}$is

A) ethyl but -1-enoate

B) ethyl but-2-enoate

C) ethyl prop-2-enoate

D) None of the above

• question_answer66) 1-3-butadiene when treated with$B{{r}_{2}}$gives

A) 1, 4-dibromo-2-butene

B) 1, 3-dibromo-1-butene

C) 3, 4-dibropio-2-butene

D) 2, 3-dibromo-2-butene

• question_answer67) In$NO_{3}^{-}$ion, the number of bond pair and lone pair of electrons on nitrogen atom are

A) 2, 2

B) 3, 1

C) 1, 3

D) 3, 0

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

B) $CaO$

C) graphite

D) $MgO$

• question_answer69) The method usually employed for the destruction of a colloidal solution is

A) dialysis

C) diffusion through animal membrane

D) condensation

• question_answer70) Which among the following conditions, increase the yield of the product in the equilibrium? $3A+B\underset{Endothermic}{\mathop{}}\,4C$

A) Increase in pressure

B) Increase in volume

C) Increase in temperature

D) Decrease in temperature

• question_answer71) A sugar syrup of weight $214.2g$ contains $34.2g$ of sugar. The molar concentration is

A) $0.55$

B) $5.5$

C) $55$

D) $0.1$

• question_answer72) The relation which describes the variation of vapour pressure with temperature is called

A) Hess law

B) Arrhenius equation

C) Kirchoffs law

D) Clausius-Clapeyron equation

• question_answer73) $59g$of an amide obtained from a carboxylic acid,$RCOOH$, upon heating with alkali liberated $17g$ of ammonia. Atomic masses of $C,\,\,H,\,\,N$and$O$are 12, 1, 14 and 16 respectively. The acid is

A) formic acid

B) acetic acid

C) propionic acid

D) benzoic acid

• question_answer74) The gas evolved in tailing of mercury is

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

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

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

D) ${{H}_{2}}$

• question_answer75) In which of the following ores calcination process is not applicable?

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

B) $A{{l}_{2}}{{O}_{3}}\cdot 2{{H}_{2}}O$

C) $CuC{{O}_{3}}\cdot Cu{{(OH)}_{2}}$

D) $ZnS$

• question_answer76) The reaction,${{({{C}_{6}}{{H}_{5}})}_{2}}C=O+C{{H}_{2}}=P{{({{C}_{6}}{{H}_{5}})}_{3}}\xrightarrow[ether]{Dry}$${{({{C}_{6}}{{H}_{5}})}_{2}}C=C{{H}_{2}}+{{({{C}_{6}}{{H}_{5}})}_{3}}PO$, is called

A) Wittig reaction

B) Claisen reaction

C) Benzoin condensation

D) Perkins reaction

• question_answer77) Which of the following is a plasticizer?

A) Cresyl phosphate

B) Ethyl acetate

C) Phthalic anhydride

D) Phthalic acid

• question_answer78) The order of decreasing polarity in the compounds$CaO,\,\,CsF,\,\,KCl,\,\,MgO$is

A) $CaO,\,\,CsF,\,\,KCl,\,\,MgO$

B) $MgO,\,\,KCl,\,\,CaO,\,\,CsF$

C) $KCl,\,\,CaO,\,\,CsF,\,\,MgO$

D) $CsF,\,\,KCl,\,\,CaO,\,\,MgO$

• question_answer79) Which of the following is a solid compound?

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

B) ${{N}_{2}}{{O}_{4}}$

C) $NO$

D) ${{N}_{2}}{{O}_{5}}$

• question_answer80) Which of the following is incorrect about vulcanisation of rubber?

A) Vulcanised rubber has excellent elasticity

B) Vulcanised rubber increases resistance to oxidation and organic solvent

C) Vulcanisation usually establishes cross links at allylic position type reactive sites

D) Vulcanised rubber has high-water absorption tendency

• question_answer81) Mark out the correct set of decreasing$p{{K}_{a}}$for the following molecules

A) $IV>II>III>I$

B) $I>III>II>IV$

C) $IV>III>II>I$

D) $IV>II>I>III$

• question_answer82) Which one is the most stable carbocation?

A) $C{{H}_{2}}FCH_{2}^{+}$

B) $C{{F}_{3}}CH_{2}^{+}$

C) $CC{{l}_{3}}-CH_{2}^{+}$

D) $^{+}C{{F}_{3}}$

• question_answer83) The correct order of dipole mpmwt is

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

B) $N{{F}_{3}}<C{{H}_{4}}<N{{H}_{3}}<{{H}_{2}}O$

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

D) ${{H}_{2}}O<N{{H}_{3}}<N{{F}_{3}}<C{{H}_{4}}$

• question_answer84) The vapour density of a chloride of a metal is $81.5\,\,(H=1)$ and the chloride contains $34.46%$ metal. The specific heat of the metal is$0.115$. The molecular formula of chloride is

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

B) ${{M}_{2}}C{{l}_{3}}$

C) $MC{{l}_{3}}$

D) $MC{{l}_{4}}$

• question_answer85) What is the freezing point of a$10%$(by weight) solution of$C{{H}_{3}}OH$in water?

A) $-{{6.45}^{o}}C$

B) $-{{5.1}^{o}}C$

C) ${{1.02}^{o}}C$

D) $-{{3.5}^{o}}C$

• question_answer86) Bohrs radius of 2nd orbit of Be34 is equal to that of

A) 4th orbit of hydrogen

B) 2nd orbit of$H{{e}^{+}}$

C) 3rd orbit of$L{{i}^{2+}}$

D) first orbit of hydrogen

• question_answer87) Half-life period of a radioactive element is$100yr$. How long will it take for its $93.75%$ decay?

A) $400\,\,yr$

B) $300\,\,yr$

C) $200\,\,yr$

D) $193\,\,yr$

• question_answer88) Two flasks containing gases$A$and$B$are interconnected as shown in the figure. The stopper is opened, the gases are allowed to mix homogeneously. The partial pressures of$A$and$B$in the mixture will be, respectively

A) 8 and 5 atm

B) 9.6 and 4 atm

C) 4.8 and 2 atm

D) 6.4 and 4 atm

• question_answer89) Aniline is not the major product in one of the following reactions. Identify that reaction

A) ${{C}_{6}}{{H}_{5}}OH+N{{H}_{3}}\xrightarrow[{{300}^{o}}C]{ZnC{{l}_{2}}}$

B) ${{C}_{6}}{{H}_{5}}N{{O}_{2}}+Z{{n}_{powder}}\xrightarrow{Alcoholic\,\,KOH}$

C) ${{C}_{6}}{{H}_{5}}Cl+N{{H}_{3}}\xrightarrow[C{{u}_{2}}O,\,high\,\,pressure]{{{200}^{o}}C}$

D) ${{C}_{6}}{{H}_{5}}N{{O}_{2}}+6(H)\xrightarrow[HCl]{Fe+{{H}_{2}}O}$

• question_answer90) Acetaldehyde forms a white crystalline precipitate on mixing with a ...... solution of

A) acidic,$Zn-Hg$

B) alcoholic,$N{{a}_{2}}S{{O}_{3}}$

C) saturated aqueous,$NaHS{{O}_{3}}$

D) aqueous,$NaCl$

• question_answer91) Which one of the following equations represents Freundlich adsorption isotherm?

A) $\frac{x}{m}=Kp$

B) $\frac{x}{m}=K{{p}^{n}}$

C) $\log \frac{x}{m}=K{{p}^{n}}$

D) $\log \frac{x}{m}=Kn\log p$

• question_answer92) The carbohydrate that will yield glucose and fructose on homogeneous catalytic hydrolysis in presence of dilute sulphuric acid is

A) cellulose

B) maltose

C) starch

D) sucrose

• question_answer93) Which pair of elements has similar properties?

A) 13, 31

B) 11, 20

C) 12, 10

D) 21, 33

• question_answer94) Ethylmine can be prepared by the action of bromine and caustic potash on

A) acetamide

B) propionamide

C) form amide

D) methylcyanide

• question_answer95) Which of the following alkyl halide will react according to${{S}_{N}}1$mechanism?

A) 1-chloropentane

B) 2-methyl-2-chloropentane

C) neo-pentyl chloride

D) 2-chloropentane

• question_answer96) In a balanced equation,${{H}_{2}}S{{O}_{4}}+xHI\xrightarrow{{}}{{H}_{2}}S+y{{I}_{2}}+z{{H}_{2}}O$the value of$x,\,\,y$and$z$are respectively

A) 3, 5, 2

B) 4, 8, 5

C) 8, 4, 4

D) 5, 3, 4

• question_answer97) Which of the following statement is not correct?

A) $La{{(OH)}_{3}}$is less basic than$Lu{{(OH)}_{3}}$

B) In lanthanide series, ionic radius of Lu^ ion decreases

C) $La$is actually an element of transition series rather lanthanide

D) Atomic radius of$Zr$and$Hf$are same because of lanthanide contraction

• question_answer98) Diethyl ether on heating with cone. $HI$gives two moles of

A) ethyl iodide

B) ethanol

C) iodoform

D) methyl iodide

• question_answer99) Which of the following is reducing agent?

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

B) $Zn+HCl$

C) $Sn+HCl$

D) All of these

• question_answer100) The brass is an alloy of

A) gold and copper

B) silver and zinc

C) copper and zinc

D) copper and aluminium

• question_answer101) The Devonian period is considered to be as age of

A) fishes

B) amphibians

C) reptiles

D) mammals

• question_answer102) Which of the following show paleontological evidence for evolution?

A) Darwin finches

B) Duck-billed platypus

C) Archaeopteryx

D) Biston betularia

• question_answer103) Kingdom -Plantae was divided into ......... divisions by Engler and Pranti

A) 10

B) 11

C) 13

D) 14

• question_answer104) Which one of the following is a disease causing bacterium in human beings?

A) E. coli

B) Xanthomonas citri

C) TMV

D) Pilobolus

• question_answer105) Schizogony of Plasmodium is also called as

A) sporogony

B) gamogony

C) agamogony

D) binary fission

• question_answer106) Dum-dum fever is caused by

A) Leishmania tropica

B) Leishmania donovani

C) Trypanosoma evansi

D) None of the above

• question_answer107) The retort cells are found in the stem of

A) Sphagnum

B) Poly trichum

C) Funaria

D) Pogonatum

• question_answer108) Nervous system is first formed in

A) platyhelminthes

B) cnidarian

C) annelids

D) sponges

• question_answer109) The resin duct of a gymnosperm stem is an example of

A) schizogenous cavity

B) lysigenous cavity

C) big vacuole

D) intercellular space

• question_answer110) Which among dicotyledons are considered to have primitive genera?

A) Papilionaceae

B) Cucurbitaceae

C) Magnoliaceae

D) Rosaceae

• question_answer111) Enterocoelom appeared first in the course of evolution in

A) Echinodermata

B) Annelida

C) Chordata

D) Aschelminthes

• question_answer112) The generic name of brain coral is

A) Fungia

B) Meandrina

D) Astraea

• question_answer113) The secondary host in the case of blood fluke is

A) snail

B) pig

C) man

D) sand fly

• question_answer114) The secretory as well as excretory cells of plants are

A) cells of oil glands

B) hydathode

C) latex cells

D) None of these

• question_answer115) The plasma membrane of mycoplasma is rich in

A) cellulose

B) myosin

C) myosin

D) glycogen

• question_answer116) Purgative to expel Ascaris is

A) oil of Chenopodium

B) tetrachlorethylene

C) hexylresorcinol

D) All of the above

• question_answer117) The repeating unit in glycogen is

A) glucose

B) fructose

C) galactose

D) cellulose

• question_answer118) Which one is a marine leech?

A) Spiunculus

B) Pontobdella

C) Hirudo

D) Polygordius

• question_answer119) The general body plan and body symmetry are similar in

A) frog and lofcust

B) sea horse and star fish

C) annelids and sponge

D) pigeon and liver fluke

• question_answer120) Which one is not a carp?

A) Labeo

B) Catia catia

C) Mystus

D) Cyprinus

• question_answer121) Endo peptidase of plant kingdom is

A) trysin

B) pepsin

C) papain

D) urease

• question_answer122) One of the following cells can divide by meiosis

A) sporocyte

B) meiocyte

C) primary spermatocyte and primary oocyte

D) All of the above

A) small

B) large

C) negligible

D) All of these

• question_answer124) Chromosome complement with$2n-1$is called

A) monosomy

B) trisomy

C) nullisomy

D) tetrasomy

• question_answer125) Interferon is the bodys first line of defence against......... attacks.

A) viral

B) bacterial

C) protozoan

D) All of these

• question_answer126) One of them is recently domestic carnivore

A) cat

B) dog

C) polar hear

D) camel

• question_answer127) Dolichos lablab is a

A) Straggler

B) climber

C) twiner

D) runner

• question_answer128) Sweat glands are scanty in

A) man

B) rabbit

C) polar bear

D) elephant

A) prop roots

B) prop and tuberous roots

C) pneumatophores

D) None of the above

• question_answer130) In tamarind, the pinnate leaf is

A) bipinnate

B) tripinnate

C) peripinnate

D) imperipinnate

• question_answer131) Camouflage of Chameleon is associated with

A) chromosome

B) chromomere

C) chromoplast

D) chromatophore

• question_answer132) Which of these is the place of cellulose digestion in numinants?

A) Rumen

B) Reticulum

C) Omassum

D) Abomassum

• question_answer133) Cyathjum and hypanthodium resemble each other in possessing

A) involucre

B) dioecious nature

C) receptacle

D) None of these

• question_answer134) Vital capacity of lungs is

A) Inspiratory Reserve Volume (IRV) + Expiratory Reserve Volume (ERV) + Tidal Volume (TV) + Residual Volume (RV)

B) IRV + ERV + TV

C) IRV + ERV

D) IRV + ERV + TV - RV

• question_answer135) Spiral valve is present in

A) right auricle

B) sinus venosus

C) truncus arteriosus

D) right ventricle

• question_answer136) Edible part of mango is

A) epicarp

B) mesocarp

C) thalamus

D) endocarp

• question_answer137) Smallest parasitic plant with two cotyledons in the seed is

A) Lemna

B) Wolffia

C) Arceuthobium

D) None of these

• question_answer138) Inflorescence of Liliaceae is

A) Zygomorphic

B) trimerous

C) pentamerous

D) imperfect

• question_answer139) The presence of cuticle in arthropods indicate

A) metamorphosis

B) moulting

C) aquatic environment

D) None of the above

• question_answer140) Autonomy, a phenomenon is well marked in

A) annelids

B) arthropods

C) mollusc

D) Echinodermata

• question_answer141) Cotton fibre is part of

A) epidermal tissue system

B) vascular tissue system

C) meristematic tissue system

D) ground tissue system

A) which kills host

B) which completes life cycle in ones host

C) which uses body of host to reproduce

D) None of the above

• question_answer143) Actively moving animal organisms in any aquatic systems are

A) benthic

B) phytoplanktons

C) nectons

D) zooplanktons

• question_answer144) How deep is photic or euphotic zone from the upper surface of sea?

A) 10 m

B) 100 m

C) 200 m

D) 500 m

• question_answer145) Heavy metals are detoxified in plants by

A) ABA

B) all elopathins

C) phytochelatins

D) phytoalexins

• question_answer146) If the number of a species increase in any national park it can be due to

A) intraspecific competition

B) interspecific competition

C) emigration

D) mutualism

• question_answer147) The concept of genetic drift was introduced by

A) Hardy Weinberg

B) Sewall Wright

C) GG Simpson

D) Julian Huxley

• question_answer148) Which one among the following chemicals is used for preventing defoliation of forest trees?

A) AMO - 1618

B) Phosphon D

C) Malic hydrazide

D) 2, 4-D

• question_answer149) The angiosperm showing symbiotic association with blue green algae is

A) Lens

B) Cyamopsis

C) Trifolium

D) None of these

• question_answer150) Sago which we use as food comes from this plant

A) Calamus ritung

B) Metroxylon rumphii

C) Areca catechu

D) Phoenix dactylifera

• question_answer151) Which one is the hardest wood?

A) Shorea robusta

B) Tectona grandis

C) Cedrus deodara

D) Dalbergia sissoo

• question_answer152) Medium used in culturing hybridoma cells is

A) HAT

B) HAP

C) TAP

D) TAC

• question_answer153) Agar is obtained from

A) bacteria

B) blue-green algae

C) red algae

D) brown algae

• question_answer154) Against which foreign organism (antigen) antibiotic is most effective?

A) Virus

B) Bacteria

C) Fungal infection

D) Protozoan infection

• question_answer155) Toxin produced by plants are

A) phytoalexins

B) phytochrome

C) phytoferritin

D) phytotoxins

• question_answer156) Which disease is not caused by triple antigens?

A) Tetanus

B) Diphtheric

C) Whooping cough

D) Typhoid

• question_answer157) Glaucoma is caused due to

A) opacity of lens

B) increase in size of eye ball

C) canal of Schlemn is blocked

D) vitreous humour becomes dry

• question_answer158) Which cranial nerve controls the heart muscles?

A) Facial

B) Vagus

C) Auditory

D) Trochlear

• question_answer159) Corolloid roots of Cycas has

A) Anabaena

B) My corrhiza

C) Rhizobium

D) Azotobacter

• question_answer160) The sun loving plants are referred to as

A) halophytes

B) heliophytes

C) heterotrophs

D) sciophytes

• question_answer161) Die back of citrus and reclamation of legumes and cereals is due to deficiency of

A) copper

B) zinc

C) sodium

D) molybdenum

• question_answer162) Which enzyme fixes$C{{O}_{2}}$in Calvin cycle?

A) RuBP carboxylase

B) PEP carboxylase

C) carbonic anhydrase

D) hexokinase

• question_answer163) In which of the following are orchreate stipules found?

A) Cruciferae

B) Papilionaceae

C) Compositae

D) Polygonaceae

• question_answer164) Surfactant in alveoli is secreted by

A) dust cells

B) type I epithelial cells

C) type II epithelial cells

D) Kupffer cells

• question_answer165) Which one is not fully formed in birds?

A) Pectoral girdle

B) Pelvic girdle

C) Hind limb

D) Forelimb

• question_answer166) Cells of Deiter occur in

A) utriculus

B) retina of eyes

C) organ of Corti

D) sebaceous glands

A) clusters of glomeruli in mammalian kidney

B) nephrostomal part of mesoderm

C) hormone of the adrenal gland

D) frontal lobe of nephridia

A) hydrophily

B) ornithophily

C) zoophily

D) anemophily

A) megaspore

B) micro gametophyte

C) female gametophyte

D) megasporangium

• question_answer170) Middle piece of a mammalian sperm contains

A) nucleus

B) centriole

C) mitochondria

D) vacuole

• question_answer171) The type of immunoglobulin present in the foetus are

A) $IgD$

B) $IgE$

C) $IgG$

D) $IgM$

• question_answer172) One of the following controls the population from going beyond its limits

A) carrying capacity

B) environmental resistance

C) family planning programme

D) shortage of food supply

• question_answer173) Viroids differ from viruses in being

A) naked RNA molecules only

B) naked DNA molecules

C) naked DNA packaged with viral genome

D) satellite RNA packaged with viral genome

• question_answer174) The codon for anticodon 3UUAS is

A) 5AAUS

B) 3AAU57

C) 5AAT3

D) 3AAGS

• question_answer175) Pureline breed refers to

A) homozygosity

B) heterozygosity

C) homozygosity with only dominant genes

• question_answer176) Major function of mitochondria in a cell is

A) secretion

B) excretion

C) osmoregulation

D) fat synthesis

• question_answer177) Feet in King fisher are modified for

A) walking

B) perching

C) running

D) catching

A) marine

B) riverine

C) esturine

D) fresh water

• question_answer179) Instead of seta in capsule of Sphagnum the structure present in

A) columella

B) pseudopodium

C) haustoria

D) root

• question_answer180) Kappa particles in Paramecium aurelia making killer traits were discovered by

A) Hill

B) Sonneborn

C) Rosenh of

D) Morgan

A) mycoplasmal disease

B) viral diseases

C) Both (a) and (b)

D) None of the above

A) inherited

B) artificial

C) superficial

D) All of these

• question_answer183) Sexual selection in Darwins theory was the

A) weakest part

B) strong part

C) strongest part

D) None of the above

• question_answer184) The statement All biological catalysts are proteins is no more valid because of the discovery of

A) ribonuclease

B) ribozymes

C) lysozymes

D) enzymes

• question_answer185) From the given pair of proteins where both members of the pair are either structural or functional. Mark the odd pair.

A) Haemoglobin and myoglobin

B) Fibrinogen and trypsin

C) Insulin and glucagon

D) Keratin and fibrin

• question_answer186) Ethylene is involved in

A) aerobic respiration

B) anaerobic respiration

C) climacteric respiration

D) fermentation

• question_answer187) Suspensor formation in Sagittaria occurs at ......... celled stage.

A) 6-10

B) 4-5

C) 2-3

D) single

• question_answer188) Insulin and glucagon are

A) polypeptides

B) polysaccharides

C) polynucleotides

D) None of the above

• question_answer189) Preganglionic sympathetic fibres are

B) cholinergic

C) synergic

D) hypergonic

• question_answer190) Kranz anatomy is found in

A) most of monocots

B) few dicots

C) Both (a) and (b)

D) None of the above

A) chemoreceptor

B) photoreceptor

C) thermo receptor

D) tangoreceptor

• question_answer192) Caudal sensory organs (phasmids) are present in

A) rotifers

B) nematomorphs

C) nematodes

D) cestodes

• question_answer193) The total number of species belonging to present day gymnosperm is

A) 1000

B) 2000

C) 1500

D) 722

• question_answer194) It is a copper moss

A) Bryum

B) Tortella

C) Merceya

D) All of these

• question_answer195) A phage that invades but does not destroy the host is

A) temperate phage

B) sexduction

C) phycophages

D) virulent phage

• question_answer196) The drug calchicine has inhibitory effect on cell cycle in which stage?

A) Prophase

B) Anaphase

C) Metaphase

D) Telophase

• question_answer197) Endoparasite worms belong to class

A) Turbellaria

B) Trematoda

C) Cestoda

D) Encestoda

• question_answer198) Roots are the source of cammercial rubber in the species of

A) Hevea

B) Ficus

C) Taraxacum

D) Parthenium

• question_answer199) The inherent capacity of a cell to regenerate a new whole organism is called

A) ontogeny

B) totipotency

C) phylogeny

D) proliferation

A) dysentery

B) Kala-azar

C) sleeping sickness in man

D) a disease of animals