# Solved papers for CMC Medical CMC-Medical VELLORE Solved Paper-2012

### done CMC-Medical VELLORE Solved Paper-2012

• question_answer1) Identify the false statement from the following

A) If cohesive force = adhesive force, then angle of contact, $\theta =90{}^\circ$

B) If cohesive force < adhesive force, then angle of contact, $\theta <90{}^\circ$

C) If cohesive force > adhesive force, then angle of contact, $\theta >90{}^\circ$

D) If the radius of capillary is reduced to half, then the rise of liquid column becomes four times

• question_answer2) In the case of a diatomic gas, if heat is given at constant pressure then the part of energy which is used for expansion of gas is

A) $\frac{2}{7}$

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

C) $\frac{3}{7}$

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

• question_answer3) Among the following which is dimensionally correct?

A) Pressure = Force per unit volume

B) Pressure = Energy per unit volume

C) Pressure = Energy per unit area

D) Pressure = Force per unit volume per unit time

• question_answer4) If pressure of $C{{O}_{2}}$(real gas) in a container is given by $p=\frac{RT}{2V-b}-\frac{a}{4{{b}^{2}}}$ Then, mass of the gas in the container is

A) 44 g

B) 33 g

C) 22 g

D) 5g

• question_answer5) The relative velocity of two consecutive layers is 8 $cm{{s}^{-1}}$ and the perpendicular distance between the layers is 0.1 cm. The velocity gradient is

A) 0.8 ${{s}^{-1}}$

B) 0.08 ${{s}^{-1}}$

C) 8.0 ${{s}^{-1}}$

D) 80 ${{s}^{-1}}$

• question_answer6) When a projectile is fired with initial velocity u at an angle of projection 6, then its range is R. If the initial velocity is doubled at same angle of projection, then the new range will be

A) $R$

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

C) $2R$

D) $4R$

• question_answer7) If a resistance of R$\Omega$ is connected in series with an inductor L and the phase angle between voltage and current is $\frac{\pi }{4},$then the value of inductive reactance is

A) zero

B) $R$

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

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

• question_answer8) If two waves of equal amplitude and frequency interfere each other then the ratio of intensity when the two waves arrive in phase to that when they arrive $90{}^\circ$out of phase is

A) $\sqrt{2}:1$

B) $1:1$

C) $4:1$

D) $2:1$

• question_answer9) In a transistor, forward bias is always smaller than the reverse bias because it

A) helps to produce large voltage gain

B) helps to maintain a constant base current

C) helps in avoiding excessive heating of transistor

D) None of the above

• question_answer10) If the total power rating of a group of electric lamps is 1000 W and they are connected across an AC voltage $E=200\,\sin \,(310\,t+60{}^\circ )$ Then, the rms value of the circuit current is

A) $10\,\sqrt{2}A$

B) $20\,\sqrt{2}A$

C) $10A$

D) $20A$

• question_answer11) For a particle starting from rest, the acceleration varies with time according to relation, $A=-a{{\omega }^{2}}\sin \omega t$ The displacement of this particle at a time t will be

A) $a\,\omega \,\cos \omega t$

B) $a\,\sin \omega t$

C) $a\,\omega \sin \omega t$

D) $-\frac{1}{2}(a{{\omega }^{2}}\sin \omega t)\,{{t}^{2}}$

• question_answer12) If a body is moving with uniform speed v in a circle of radius r, then tangential acceleration will be

A) zero

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

C) $\frac{{{v}^{2}}}{r}$

D) $\frac{v}{{{r}^{2}}}$

• question_answer13) By using the equation $\tan \theta =\frac{rg}{{{v}^{2}}},$the value of $\theta$ (angle of banking) for a cyclist taking a curve can be calculated. But the equation is (symbols have their usual meanings)

A) dimensionally correct only

B) numerically correct only

C) both dimensionally and numerically correct

D) neither dimensionally nor numerically correct

• question_answer14) The point at which the gravitational potential and the gravitational field due to earth is zero is at

A) earths surface

B) a height ${{R}_{e}}$ from earths surface (${{R}_{e}}$ = radius of earth)

C) a point below the earths surface

D) infinity

• question_answer15) If the breaking force for a wire is F, then the value of breaking force on increasing the thickness of wire 2 times will be

A) F

B) 2F

C) 4F

D) 8F

• question_answer16) The Youngs modulus of a material is 3 times its modulus of rigidity, the volume elasticity is

A) zero

B) infinity

C) $2\times {{10}^{10}}N\text{-}{{m}^{2}}$

D) $3\times {{10}^{10}}N\text{-}{{m}^{-2}}$

• question_answer17) An arc of radius r carries charge. The linear density of charge is K and the arc subtends an angle of $60{}^\circ$ at the centre. What is the value of electric potential at the centre?

A) $\frac{\lambda }{16\,{{\varepsilon }_{0}}}$

B) $\frac{\lambda }{8\,{{\varepsilon }_{0}}}$

C) $\frac{\lambda }{12\,{{\varepsilon }_{0}}}$

D) $\frac{\lambda }{4\,{{\varepsilon }_{0}}}$

• question_answer18) Newtons law of cooling is a special case of

A) Plancks law

B) Kirchhoffs law

C) Wiens law

D) Stefans law

• question_answer19) At a certain temperature, if the r.m.s. velocity of${{O}_{2}}$is 400 m/s then at the same temperature the r.m.s. velocity of${{H}_{2}}$molecules will be

A) 400 m/s

B) 1600 m/s

C) 3200 m/s

D) 6400 m/s

• question_answer20) The moment of inertia of a thin circular lamina of mass 1 kg and diameter 0.2 m rotating about one of its diameter is

A) $2.5\times {{10}^{-3}}kg\text{-}{{m}^{2}}$

B) $4\times {{10}^{-2}}kg\text{-}{{m}^{2}}$

C) $5\times {{10}^{-3}}kg\text{-}{{m}^{2}}$

D) $5.5\times {{10}^{-3}}kg\text{-}{{m}^{2}}$

• question_answer21) If the kinetic energy of a body is decreased by 36%, then its momentum is decreased by

A) 6%

B) 8%

C) 20%

D) 36%

• question_answer22) A man is riding on a cycle with velocity 7.2 km/h up a hill having a slope 1 in 20. The total mass of the man and cycle is 100 kg. The power of the man is

A) 98 W

B) 125 W

C) 175 W

D) 200 W

• question_answer23) When a ring of mass 10 kg and diameter 0.4 m is rotated about its axis it makes 2100 rev/min. The angular momentum of the ring will be

A) $0.4\,kg\,{{m}^{2}}{{s}^{-1}}$

B) $4.4\,kg\,{{m}^{2}}{{s}^{-1}}$

C) $44\,kg\,{{m}^{2}}{{s}^{-1}}$

D) $88\,kg\,{{m}^{2}}{{s}^{-1}}$

• question_answer24) Two electric bulbs one rated 40 W-200 V and other 100 W -200 V are connected in a house wiring circuit. Which one of the following statement about them is correct?

A) The resistance of the filaments in both the bulbs are same

B) The resistance of filament in 40 W bulb is more than the resistance of 100 W bulb

C) The resistance of the filament in 100 W bulb is more than the resistance of 40 W bulb

D) None of the above

• question_answer25) In the hydrogen atom, the electron is making $6.6\times {{10}^{15}}\text{rps}\,.$If the radius of the orbit is $0.53\times {{10}^{-10}}m,$ then magnetic field produced at the centre of the orbit is

A) 0.14 T

B) 1.4T

C) 12.5 T

D) 140 T

• question_answer26) According to Boolean Algebra $\overline{\overline{A}\cdot \overline{B}}\cdot A$equals to

A) $A$

B) $A+B$

C) $\overline{A+B}$

D) $\overline{A\cdot B}$

• question_answer27) The mobility of free electrons is greater than that of free holes because

A) they are light

B) they require low energy to continue their motion

C) they carry negative charge

D) they mutually collide less

• question_answer28) A light ray is incident by grazing, one of the face of a prism and after refraction ray does not emerge out, what should be the angle of prism while critical angle is C?

A) $A>2C$

B) $A<2C$

C) $A=2C$

D) None of these

• question_answer29) A man can see only between 75 cm to 200 cm. The power .of lens to correct the near point will be

A) $-3D$

B) $-\,8/3D$

C) $+3D$

D) $+\,8/3D$

• question_answer30) A double convex lens made up of a material of refractive index ${{\mu }_{1}}$ is immersed inside two liquids of refractive indices ${{\mu }_{2}}$ and ${{\mu }_{3}}$ as shown in figure. If ${{\mu }_{2}}>{{\mu }_{1}}<{{\mu }_{3}}$ and a wide parallel beam of light incident on the lens from the left, then the lens will give rise to

A) a convergent beam and a divergent beam

B) two different divergent beams

C) two different convergent beams

D) a single convergent beam

• question_answer31) A radioactive nucleus is being produced at a constant rate a per second. Its decay constant is $\lambda$. If ${{N}_{0}}$is the number of nuclei at time t = 0, then maximum number of nuclei possible are

A) ${{N}_{0}}$

B) ${{N}_{0}}+\frac{\alpha }{\lambda }$

C) $\frac{\alpha }{\lambda }$

D) $\frac{\lambda }{\alpha }+{{N}_{0}}$

• question_answer32) The bob of a simple pendulum of mass m and length ; is droped from the horizontal position strikes a block of the same mass elastically placed on a horizontal frictionless table. The kinetic energy of the block will be

A) zero

B) $mgl$

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

D) $2mgl$

• question_answer33) Metallic ropes are suspended on the carriers which take inflammable material because

A) they keep the body of the carrier in contact with the earth

B) they keep the centre of gravity of the carrier nearer to the earth

C) they controlled the speed of the carrier

D) nothing should be placed under the carrier

• question_answer34) The terminal potential difference of a cell is greater than its emf when it is

A) in open circuit

B) being charged

C) being discharged

D) being either charged or discharged.

• question_answer35) If a magnet is suspended at an angle $30{}^\circ$ to the magnetic meridian, it makes an angle of $45{}^\circ$ with the horizontal. The real dip is

A) ${{\tan }^{-1}}\left( \sqrt{\frac{3}{2}} \right)$

B) ${{\tan }^{-1}}\left( \frac{\sqrt{3}}{2} \right)$

C) ${{\tan }^{-1}}\left( \sqrt{3} \right)$

D) ${{\tan }^{-1}}\left( \frac{2}{\sqrt{3}} \right)$

• question_answer36) A Cu disc of radius 0.1 m rotates about its centre with 10 rps in a uniform magnetic field of 0.1 T. The emf induced across the radius of the disc is

A) $10\pi \,mV$

B) $20\pi \,mV$

C) $\frac{\pi }{10}\,V$

D) $\frac{\pi }{10}\,V$

• question_answer37) The coefficient self inductance of a solenoid is 0.18 mH. If a core of soft iron of relative permeability 900 is inserted, then the coefficient of self-inductance will becomes

A) 0.0002 mH

B) 0.006 mH

C) 5.4 mH

D) 162 mH

• question_answer38) If a resonant AC circuit contains a capacitor of capacitance ${{10}^{-6}}F$ and an inductor of ${{10}^{-4}}H,$ then the frequency of electrical oscillations will be

A) $10\,Hz$

B) ${{10}^{5}}\,Hz$

C) $\frac{10}{2\pi }\,Hz$

D) $\frac{{{10}^{5}}}{2\pi }\,Hz$

• question_answer39) Threshold frequency for a metal is 1015 Hz. If light of wavelength $4000\overset{\text{o}}{\mathop{\text{A}}}\,$ falls on its surface, then which of the following statement is correct?

A) Photo electrons come out with zero speed.

B) Photo electrons come out with ${{10}^{3}}$m/s speed.

C) Photo electrons come out with ${{10}^{5}}$m/s speed.

D) No photo electric emission takes place.

• question_answer40) In a semiconductor the concentrations of electrons and holes are $8\times {{10}^{18}}{{m}^{-3}}$and $5\times {{10}^{18}}{{m}^{-3}}$respectively. If the mobilities of electrons and holes are $2.3\,\,{{m}^{2}}{{V}^{-1}}{{s}^{-1}}$and $0.01$$0.01\,{{m}^{2}}{{V}^{-1}}{{s}^{-1}}$respectivey, then semiconductor is

A) n-type and its resistivity is 0.034 $\Omega \text{-}m$

B) n-type and its resistivity is 0.34 $\Omega \text{-}m$

C) p-type and its resistivity is 0.034$\Omega \text{-}m$

D) p-type and its resistivity is 0.34$\Omega \text{-}m$

• question_answer41) The periodic time of a particle executing SHM is 4 s. The time taken by it to go from its mean position to half the maximum displacement (amplitude) is

A) $1s$

B) $2s$

C) $\frac{1}{3}s$

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

• question_answer42) When three masses 700g, 500g and 400g are suspended at the end of a spring as shown, they are in equilibrium. If the mass of 700g is removed, then system oscillates 500 g with a period of 3 s, if further 400g 500 g mass is also removed then the system will .oscillate with a period of

A) 1s

B) 2s

C) 3s

D) 4s

• question_answer43) In steady state of thermal conduction, temperature of the ends A and B of a 20 cm long rod are $100{}^\circ C$ and $0{}^\circ C$ respectively. What will be the temperature of the rod at a point at a distance of 6 cm from the end A of the rod?

A) $5{}^\circ C$

B) $70{}^\circ C$

C) $-\,30{}^\circ C$

D) $-50{}^\circ C$

• question_answer44) If three rings each of mass m and radius r are arranged as shown in figure, then the moment of inertia of the system about the axis XX will be

A) $3\,m{{r}^{2}}$

B) $\frac{3}{2}\,m{{r}^{2}}$

C) $7\,m{{r}^{2}}$

D) $\frac{7}{2}\,m{{r}^{2}}$

• question_answer45) If a body of mass 10 kg is dropped to the ground from a height of 5 m, then the work done by the gravitational force is (Take g= 9.8 $m\text{/}{{s}^{2}}$)

A) $+\,490\,J$

B) $-\,490\,J$

C) $-\,980\,J$

D) $+\,980\,J$

• question_answer46) A mass of 10 kg is sliding along a rough horizontal surface. If the coefficient of friction is $\frac{1}{\sqrt{3}},$ then the least force which acts at an angle of $30{}^\circ$ to horizontal is (Take g= 10 $m\text{/}{{s}^{2}}$)

A) 25 N

B) 50 N

C) 50 n

D) 100N

• question_answer47) The velocity of a particle is given by$(10+2{{t}^{2}})\,ms.$The average acceleration of the particle between 2 s and 5 s will be

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

B) $4\,\,m\text{/}{{s}^{2}}$

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

D) $14\,\,m\text{/}{{s}^{2}}$

• question_answer48) At the highest point of the path of a projectile, its

A) kinetic energy is minimum

B) kinetic energy is maximum

C) potential energy is minimum

D) total energy is maximum

• question_answer49) If a body of mass m is projected at an angle of $45{}^\circ$with the horizontal, then total change in momentum when it strikes the ground will be (Take air resistance negligible)

A) $mv$

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

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

D) $2\,mv$

• question_answer50) A body moves from rest with a constant acceleration. Which one of the following graphs represents the variation of its kinetic energy K with the distance travelled$x?$

A)

B)

C)

D)

• question_answer51) An earth satellite is moved from one stable circular orbit to a further stable orbit, then among the following which one will increase?

A) Linear orbital speed

B) Centripetal acceleration

C) Gravitational potential energy

D) Gravitational force

• question_answer52) The value of g at the surface of the earth is 9.8$m\text{/}{{s}^{2}}$. At a place 480 km above the surface of earth, the value of g will be (Take radius of earth = 6400 km)

A) 4.2 $m\text{/}{{s}^{2}}$

B) 7.2 $m\text{/}{{s}^{2}}$

C) 8.4 $m\text{/}{{s}^{2}}$

D) 9.8 $m\text{/}{{s}^{2}}$

• question_answer53) Two long freely hanging wires firstly joined in parallel and then in series. When the two combinations are connected with a battery, then which type of force acts between the two wires in two cases?

A) Repulsive force in both cases

B) Attractive force in both cases

C) Repulsive force when in parallel and attractive force when in series

D) Attractive force when in parallel and repulsive force when in series

• question_answer54) Which one of the following curves represents the curve between magnetic moment and temperature of the magnet?

A)

B)

C)

D)

• question_answer55) An electric motor draws a current of 10 A when operated on 60 V DC supply. If the efficiency of the motor is 50%, then the resistance of the motor windings is

A) 15$\Omega$

B) 3$\Omega$

C) 3$\Omega$

D) 6$\Omega$

• question_answer56) In a series L-C-R circuit, having C = 2uF, L = 1 mH and R = 10$\Omega$ when the current in the circuit is maximum at that time the ratio of energies stored in the capacitor and the inductor will be

A) 1 : 2

B) 2 : 1

C) 1 : 5

D) 5 : 1

• question_answer57) In the following reaction, what is the value of x? ${}_{12}M{{g}^{24}}+{{\,}_{2}}H{{e}^{4}}\xrightarrow[{}]{{}}{{\,}_{14}}S{{i}^{x}}+{{\,}_{0}}{{n}^{1}}$

A) 22

B) 26

C) 27

D) 28

• question_answer58) If before the saturation state of a diode, for the plate voltages 400 V and 200 V the currents are ${{i}_{1}}$ and ${{i}_{2}}$ respectively, then the ratio of ${{i}_{1}}/{{i}_{2}}$ is

A) $2/1$

B) $1/2$

C) $\sqrt{2}/4$

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

• question_answer59) If the logic gates are combined as shown in figure and the logic states of inputs A, B, C are as follows A = B = C = 0 and A = B = 1, C = 0, then the logic states of output D are

A) 1, 0

B) 1, 1

C) 0, 1

D) 0, 0

• question_answer60) Two waves ${{y}_{1}}=a\,\,\sin 2000\pi t$ and${{y}_{2}}=a\,\,\sin 2008\,\pi t$ produces beats, the number of beats heard per second will be

A) 0

B) 1

C) 4

D) 5

• question_answer61) 4.5 g of aluminium (at. mass 27u) is deposited at cathode from $A{{l}^{3+}}$solution by certain quantity of electric charge. The volume of hydrogen produced at STP from ${{H}^{+}}$ ions in solution by the same quantity of electric charge will be

A) 22.4 L

B) 44.8 L

C) 5.6 L

D) 11.2 L

• question_answer62) The rate of a first order reaction is $1.5\times {{10}^{-2}}$$mol\,{{L}^{-}}\,{{\min }^{-1}}$ at 0.5 M concentration of the reactant. The half-life of the reaction is

A) 0.383 min

B) 23.1 min

C) 8.73 min

D) 7.53 min

• question_answer63) A substance ${{A}_{x}}{{B}_{y}}$ crystallises in a face centred cubic lattice in which A atom occupies each comer of cube and atom B occupies the centres of each face of the cube. Identify the correct composition of the substance${{A}_{x}}{{B}_{y}}$.

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

B) ${{A}_{4}}{{B}_{3}}$

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

D) Composition cannot be specified

• question_answer64) The helical structure of protein is stabilized by

A) dipeptide bonds

B) hydrogen bonds

C) ether bonds

D) peptide bonds

• question_answer65) The monomer of the polymer

A)

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

C) $C{{H}_{3}}CH=CH\cdot C{{H}_{3}}$

D) $C{{H}_{3}}CH=C{{H}_{2}}$

• question_answer66) The enzyme which hydrolyses triglycerides to fatty acids and glycerol is called

A) maltase

B) lipase

C) zymase

D) pepsin

• question_answer67) The decreasing order of bond angle is

A) $N{{O}_{2}}>NO_{2}^{+}>NO_{2}^{-}$

B) $NO_{2}^{-}>N{{O}_{2}}>NO_{2}^{+}$

C) $NO_{2}^{+}>N{{O}_{2}}>NO_{2}^{-}$

D) $NO_{2}^{+}>NO_{2}^{-}>N{{O}_{2}}$

• question_answer68) The strongest reducing agent among the following is

A) ${{F}^{-}}$

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

C) $B{{r}^{-}}$

D) ${{I}^{-}}$

• question_answer69) Which of the following compounds is resistant to nucleophilic attack by hydroxyl ion?

A) Methylacetate

B) Acetonitrile

C) Acetamide

D) Diethylether

• question_answer70) Which of the following is considered to be an anticancer species?

A)

B)

C)

D)

• question_answer71) $C{{N}^{-}}$ is a strong field ligand. This is due to the fact that

A) it carries negative charge

B) it is a pseudohalide

C) it can accept electrons from metal species

D) it forms high spin complexes with metal species

• question_answer72) The correct order of solubility of the sulphates of alkaline earth metals in water is

A) Be > Ca > Mg > Ba> Sr

B) Mg >Be >Ba > Ca > Sr

C) Be > Mg > Ca > Sr >Ba

D) Mg > Ca > Ba > Be > Sr

• question_answer73) In blast furnace, iron oxide is reduced to iron by

A) carbon

B) limestone

C) CO

D) zinc

• question_answer74) Aniline when diazotised in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be

A)

B)

C)

D)

• question_answer75) 100 cc of 0.6 N ${{H}_{2}}S{{O}_{4}}$ and 200 cc of 0.3 N $HCl$ were mixed together. The normality of the solution will be

A) 0.2 N

B) 0.4 N

C) 0.8 N

D) 0.6 N

• question_answer76) The absolute enthalpy of neutralisation of the reaction,$MgO(s)+2HCl(aq)\xrightarrow{{}}MgC{{l}_{2}}(aq)+{{H}_{2}}O(l)$will be

A) less than -57.33 kJ$mo{{l}^{-1}}$

B) -57.33 kJ $mo{{l}^{-1}}$

C) greater than -57.33 kJ $mo{{l}^{-1}}$

D) 57.33 kJ $mo{{l}^{-1}}$

• question_answer77) Which of the following solutions will have the highest boiling point?

A) $0.1\,M\,FeC{{l}_{3}}$

B) $0.1\,M\,BaC{{l}_{2}}$

C) $0.1\,M\,NaCl$

D) $0.1\,M\,urea$

• question_answer78) Which of the following is least reactive in a nucleophilic substitution reaction?

A) ${{(C{{H}_{3}})}_{3}}C-Cl$

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

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

D) $C{{H}_{2}}=CHC{{H}_{2}}Cl$

• question_answer79) Which one of the following alkenes will react faster with ${{H}_{2}}$under catalytic hydrogenation conditions? (R = Alkyl substituent)

A)

B)

C)

D)

• question_answer80) The major organic product formed from the following reaction

A)

B)

C)

D)

• question_answer81) In the compound configuration at ${{C}_{2}}$ and ${{C}_{3}}$ atoms are

A) S, S

B) R, S

C) S, R

D) R, R

• question_answer82) Which one of the following compounds is most acidic?

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

B)

C)

D)

• question_answer83) Number of atoms of oxygen present in 10.6 g of $N{{a}_{2}}C{{O}_{3}}$will be

A) $6.02\times {{10}^{23}}$

B) $12.04\times {{10}^{22}}$

C) $1.806\times {{10}^{23}}$

D) $31.80\times {{10}^{28}}$

• question_answer84) The surface tension of which of the following liquid is maximum?

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

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

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

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

• question_answer85) Which of the following polymer can be used for lubrication and as an insulator?

A) PVC

B) PTFE

C) SBR

D) PMMA

• question_answer86) State the product available in the following reaction.

A) cyanobenzene

B) benzoic acid

C) cyanoethane

D) p-aminoazobenzene

• question_answer87) The correct order of acid strength is

A) $HClO<HCl{{O}_{2}}<HCl{{O}_{3}}<HCl{{O}_{4}}$

B) $HCl{{O}_{4}}<HClO<HCl{{O}_{2}}<HCl{{O}_{3}}$

C) $HCl{{O}_{2}}<HCl{{O}_{3}}<HCl{{O}_{4}}<HClO$

D) $HCl{{O}_{4}}<HCl{{O}_{3}}<HCl{{O}_{2}}<HClO$

• question_answer88) In the equation$4M+8C{{N}^{-}}+2{{H}_{2}}O+{{O}_{2}}\to 4\,{{[M\,{{(CN)}_{2}}]}^{-}}+4O{{H}^{-}}$Identify the metal M.

A) Copper

B) Iron

C) Silver

D) Zinc

• question_answer89) Which one of the following is expected to exhibit optical isomerism? (en = ethylenediamine)

A) $Cis-[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]$

B) $Trans-[Co{{(en)}_{2}}C{{l}_{2}}]$

C) $Trans-[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]$

D) $Cis-[Co{{(en)}_{2}}C{{l}_{2}}]$

• question_answer90) The best method for the separation of naphthalene and benzoic acid from their mixture is

A) chromatography

B) crystallization

C) distillation

D) sublimation

• question_answer91) The standard emf of a galvanic cell involving cell reaction with n = 2 is found to be 0.295 V at$25{}^\circ C$. The equilibrium constant of the reaction would be

A) $2.0\times {{10}^{11}}$

B) $4.0\times {{10}^{12}}$

C) $1.0\times {{10}^{2}}$

D) $1.0\times {{10}^{10}}$

A) fat dispersed in water

B) fat dispersed in milk

C) fat dispersed in fat

D) water dispersed in milk

• question_answer93) The magnetic moment of $Cu{{2}^{+}}$ ion is

A) 5.63 BM

B) 4.19 BM

C) 3.9 BM

D) 1.73 BM

• question_answer94) The hydr6gen electrode is dipped in a solution of pH = 3 at $25{}^\circ C$. The potential of the cell would be (the value of 2.303 RT/F is 0.059V)

A) 0.177 V

B) 0.087 V

C) -0.177 V

D) 0.059 V

• question_answer95) If the bond energies of H?H, Br?Br and H?Br are 433 192 and 364 kJ $mo{{l}^{-1}}$respectively, then $\Delta H{}^\circ$ for the reaction ${{H}_{2}}(g)+B{{r}_{2}}(g)\xrightarrow{{}}2HBr(g)$is

A) $~-\,261\text{ }kJ$

B) $+103\text{ }kJ$

C) $+\,261\,kJ$

D) $-103\,kJ$

• question_answer96) Which of the following molecules has trigonal planar geometry?

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

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

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

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

• question_answer97) Which of the following compounds is obtained when HCHO is reacted with ammonia?

A) Urotropine

B) Formaldehyde ammonia

C) Methyl amine

D) Ethyl amine

• question_answer98) Which one of the following structures represents the peptide chain?

A) $-\overset{\begin{smallmatrix} \text{H} \\ \text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{N}}}\,-\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ }\!\!|\!\!\text{ } \\ \text{O} \end{smallmatrix}}{\mathop{\text{C}}}\,-\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ } \\ \text{H} \end{smallmatrix}}{\mathop{\text{C}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\text{NH}-\overset{\begin{smallmatrix} \text{O} \\ \text{ }\!\!|\!\!\text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{C}}}\,-\text{NH}-$

B) $-\overset{\begin{smallmatrix} \text{H} \\ \text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{N}}}\,-\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ }\!\!|\!\!\text{ } \\ \text{O} \end{smallmatrix}}{\mathop{\text{C}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\overset{\begin{smallmatrix} \text{H} \\ \text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{N}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-$

C) $-\overset{\begin{smallmatrix} \text{H} \\ \text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{N}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ }\!\!|\!\!\text{ } \\ \text{O} \end{smallmatrix}}{\mathop{\text{C}}}\,-\overset{\begin{smallmatrix} \text{H} \\ \text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{N}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ }\!\!|\!\!\text{ } \\ \text{O} \end{smallmatrix}}{\mathop{\text{C}}}\,$$-\overset{\begin{smallmatrix} \text{H} \\ \text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{N}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ }\!\!|\!\!\text{ } \\ \text{O} \end{smallmatrix}}{\mathop{\text{C}}}\,-\overset{\begin{smallmatrix} \text{H} \\ \text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{N}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-$

D) $-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\overset{\begin{smallmatrix} \text{H} \\ \text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{N}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\overset{\begin{smallmatrix} \text{O} \\ \text{ }\!\!|\!\!\text{ } \end{smallmatrix}}{\mathop{\text{C}}}\,-\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ } \\ \text{H} \end{smallmatrix}}{\mathop{\text{N}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,$ $-\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{N}}}\,-\underset{\begin{smallmatrix} \text{ }\!\!|\!\!\text{ }\!\!|\!\!\text{ } \\ \text{O} \end{smallmatrix}}{\mathop{\text{C}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-\underset{\text{ }\!\!|\!\!\text{ }}{\overset{\text{ }\!\!|\!\!\text{ }}{\mathop{\text{C}}}}\,-$

• question_answer99) Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

A) Polyhalogens

B) Ferocenes

C) Fullerenes

D) Freons

• question_answer100) The radioactive isotope ${}_{27}^{60}Co$ which is used in the treatment of cancer can be made by (n, p) reaction. For this reaction the target nucleus is

A) ${}_{28}^{58}Ni$

B) ${}_{27}^{59}Co$

C) ${}_{28}^{60}Ni$

D) ${}_{27}^{60}Co$

• question_answer101) Reaction of HBr with propene in the presence of peroxide gives

A) isopropyl bromide

B) 3-bromopropane

C) allylbromide

D) n-propylbromide

• question_answer102) For a first order reaction, $A\to B,$ the reaction rate at reactant concentration of 0.01 M is found to be$2.0\times {{10}^{-15}}mol\,{{L}^{-1}}{{s}^{-1}}.$ The half-life period of the reaction is

A) 220 s

B) 30 s

C) 300 s

D) 347 s

• question_answer103) At $90{}^\circ C,$ pure water has$[{{H}_{3}}{{O}^{+}}]={{10}^{-6}}mol\text{/}L.$ The value of ${{K}_{w}}$ at $90{}^\circ C$is

A) 10-6

B) 10-8

C) 10-12

D) 10-14

• question_answer104) 50 mL of 0.1 M$HCl$ and 50 mL of 0.2 M NaOH are mixed. The pH of the resulting solution is

A) 1.30

B) 4.2

C) 12.70

D) 11.70

• question_answer105) Using anhydrous $AlC{{l}_{3}}$as catalyst, which one of the following reactions produce ethyl-benzene (PhEt)?

A) ${{H}_{3}}C-C{{H}_{2}}OH+{{C}_{6}}{{H}_{6}}$

B) $C{{H}_{3}}-CH=C{{H}_{2}}+{{C}_{6}}{{H}_{6}}$

C) ${{H}_{2}}C=C{{H}_{2}}+{{C}_{6}}{{H}_{6}}$

D) ${{H}_{3}}C-C{{H}_{3}}+{{C}_{6}}{{H}_{6}}$

• question_answer106) Which of the following contains cobalt?

A) Vitamin A

B) Vitamin C

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

D) Vitamin K

• question_answer107) The product A is

A)

B)

C)

D)

A) nitro dye

B) azo dye

C) anthraquinone dye

D) phthalein dye

• question_answer109) Names of some compounds are given one is not correct in IUPAC system?

A) \begin{align} & C{{H}_{3}}-\underset{OH}{\mathop{\underset{\mathbf{|}}{\mathop{CH}}\,}}\,-\underset{C{{H}_{3}}}{\mathop{\underset{\mathbf{|}}{\mathop{CH}}\,}}\,-C{{H}_{3}} \\ & \,\,\,\,\,\,\text{3-methyl-2-butanol} \\ \end{align}

B) \begin{align} & C{{H}_{3}}-C\equiv C-CH{{(C{{H}_{3}})}_{2}} \\ & \,\,\,\,\,\,\text{4-methyl-2-butanol} \\ \end{align}

C) \begin{align} & C{{H}_{3}}-\underset{C{{H}_{3}}}{\mathop{\underset{\mathbf{|}}{\mathop{C{{H}_{2}}}}\,}}\,-\underset{C{{H}_{2}}}{\mathop{\underset{||}{\mathop{C}}\,}}\,-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C{{H}_{2}}}}\,}}\, \\ & \text{2-ethyl-3-methyl-but-1-ene} \\ \end{align}

D) \begin{align} & C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-\underset{C{{H}_{2}}C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}C{{H}_{3}} \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\text{3-methyl-4-ethylheptane} \\ \end{align}

• question_answer110) Which of the following is the electro: deficient molecule?

A) ${{B}_{2}}{{H}_{6}}$

B) ${{C}_{2}}{{H}_{6}}$

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

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

• question_answer111) At $25{}^\circ C$ the dissociation constant of a base BOH is$1.0\times {{10}^{-12}}$. The concentration of hydroxyl ions in 0.01 M aqueous solution of the base would be

A) $2.0\times {{10}^{-6}}mol\,{{L}^{-1}}$

B) $1.0\times {{10}^{-5}}mol\,{{L}^{-1}}$

C) $1.0\times {{10}^{-6}}mol\,{{L}^{-1}}$

D) $1.0\times {{10}^{-7}}mol\,{{L}^{-1}}$

• question_answer112) Which of the following compounds is not aromatic?

A)

B)

C)

D)

• question_answer113) Two nodal planes are present in

A) $\overset{*}{\mathop{\pi }}\,2{{p}_{x}}$

B) $\sigma 2{{p}_{z}}$

C) $\pi 2{{p}_{x}}$

D) $\pi 2{{p}_{y}}$

• question_answer114) Which of the following will be most readily dehydrated under acidic conditions?

A)

B)

C)

D)

• question_answer115) A solid compound $X$ on heating gives $C{{O}_{2}}$gas and a residue. The residue mixed with water to give $Y$. On passing an excess of $C{{O}_{2}}$through $Y$ in water clear solution $Z$ is obtained. On boiling $Z$ compound $X$ is reformed. The compound $X$ is

A) $Ca{{(HC{{O}_{3}})}_{2}}$

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

C) $N{{a}_{2}}C{{O}_{3}}$

D) ${{K}_{2}}C{{O}_{3}}$

• question_answer116) Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have the highest third ionization enthalpy?

B) Chromium (Z = 24)

C) Iron (Z = 26)

D) Manganese (Z = 25)

• question_answer117) What is the oxidation state of phosphorus in $C{{a}_{3}}{{P}_{2}}$?

A) +3

B) -3

C) +5

D) -5

• question_answer118) The energy of second Bohr orbit of the hydrogen atom is $-\,328\text{ }kJ\text{ }mo{{l}^{-1}};$hence the energy of fourth Bohr orbit would be

A) $-\,41\text{ }kJ\text{ }mo{{l}^{-1}}$

B) $-1312\,kJ\text{ }mo{{l}^{-1}}$

C) $-164\,kJ\,mo{{l}^{-1}}$

D) $-\,82\text{ }kJ\text{ }mo{{l}^{-1}}$

• question_answer119) For d-electron, the orbital angular momentum is

A) $\frac{\sqrt{6}\,h}{2\pi }$

B) $\frac{\sqrt{2}\,h}{2\pi }$

C) $\frac{\,h}{2\pi }$

D) $\frac{2\,h}{\pi }$

• question_answer120) Which one of the following forms micelles in aqueous solution above certain concentration?

A) Urea

B) Dodecyl trimethyl ammonium chloride

C) Pyridinium chloride

D) Glucose

• question_answer121) Which of the following propagates through leaf-tip?

A) Walking fern

B) Sprout-leaf plant

C) Marchantia

D) Moss

• question_answer122) Common indicator organism of water pollution is

A) Lemna pandcostata.

B) Eichhomia crassipes

C) Escherichia coli

D) Entamoeba histolytica

• question_answer123) According to Oparin, which one of the following was not present in the primitive atmosphere of the earth?

A) Methane

B) Oxygen

C) Hydrogen

D) Water vapour

• question_answer124) Which one of the following precedes re-formation of the nuclear envelope during M-phase of the cell cylce?

A) De condensation from chromosomes, and reassembly of the nuclear lamina

B) Transcription from chromosomes and reassembly of the nuclear lamina

C) Formation of the contractile ring and formation of the phragmoplast

D) Formation of the contractile ring and transcription from chromosomes

• question_answer125) In transgenics, expression of transgene in target tissue is determined by

A) enhancer

B) transgene

C) promoter

D) reporter

A) cuts the DNA molecule randomly

B) cuts the DNA molecule at specific sites

C) restricts the synthesis of DNA inside the nucleus

D) synthesizes DNA

A) ureotelic when plenty of water is available

B) uricotelic when plenty of water is available

C) uricotelic under conditions of water scarcity

D) ammonotelic when plenty of water is available

• question_answer128) Which one of the following has an open circulatory system?

A) Pheretima

B) Periplaneta

C) Hirudinaria

D) Octopus

• question_answer129) Biradial symmetry and lack of cnidoblasts are the characteristics of

A) Starfish and sea anemone

B) Ctenoplana and Beroe

C) Aurelia and Paramecium

D) Hydra and starfish

• question_answer130) In order to obtain virus-free plants through tissue culture, the best method is

A) protoplast culture

B) embryo rescue

C) anther culture

D) meristem culture

• question_answer131) Both sickle cell anaemia and Huntingtons chorea are

A) bacteria-related diseases

B) congenital disorders

C) pollutant-induced disorders

D) virus-related diseases

• question_answer132) Which one of the following pairs is not correctly matched?

A) Vitamin ${{B}_{12}}$ - Pernicious anaemia

B) Vitamin ${{B}_{6}}$ - Loss of appetite

C) Vitamin ${{B}_{1}}$ - Beri-beri

D) Vitamin ${{B}_{2}}$ - Pellagra

• question_answer133) Injury to vagus nerve in human is not likely to affect

A) tongue movements

B) gastrointestinal movements

C) pancreatic secretion

D) cardiac movements

A) living objects of the surroundings

B) non-living objects of the surrounding

C) non-living objects, events and influences of the surroundings

D) living and non-living objects, events and influences of the surroundings

• question_answer135) Study of pollen grains is called

A) Spermology

B) Anatomy

C) Palynology

D) Aerobiology

• question_answer136) The major source of pollution up to 80% of total air pollution in metropolitan cities is

A) automobiles (traffic)

B) industries

C) pesticides

• question_answer137) Ultimate source of variations is

A) natural selection

B) sexual reproduction

C) mutations

D) hormonal actions

• question_answer138) Which of the following statement is correct?

A) Xylem is made up of all living cells.

B) Xylem is made up of living and non-living cells.

C) Xylem is made up of non-living cells.

D) Xylem does not contain cells.

• question_answer139) The boundry/transition between two or more communities sharply defined is called

A) epilimnion

B) biome

C) anticline

D) ecotone

• question_answer140) Unit of distance between genes in a chromosome is known as

A) c-DNA

B) Morgan

C) Centi Morgan

D) Spacer

• question_answer141) Age of the plant can be calculated by

A) measuring its height

B) counting leaf bases

C) counting annual rings

D) All of the above

• question_answer142) In detritus food chain transfer of food is

A) detrite (dead organic matter)$\to$detrivores $\to$ decomposers

B) detrite$\to$microbes$\to$ detrivores $\to$ decomposers

C) detrivores$\to$organic matter$\to$microbe$\to$ decomposers

D) grass $\to$ detrivores $\to$ decomposers

A) X-chromosome from male will pass to a male of next generation

B) X-chromosome from a male will pass to a female of next generation

C) X-chromosome from female will pass to female of next generation

D) None of the above

• question_answer144) Cohesion force theory was proposed by

A) JC Bose (1850)

B) Dixon and Jolly (1950)

C) Benson and Calvin (1855)

D) Dixon and Jolly (1894)

• question_answer145) The cell cultured in vitro gives rise to complete plant. This ability of plant cell is known as

A) growth

B) development

C) regeneration

D) totipotency

A) primitive organized organisms

B) extinct organisms

C) organisms with ancestral characters and time has not changed them

D) connecting link between two groups

• question_answer147) Biggest source of energy on earth surface is

A) coal

B) tides

C) atoms

• question_answer148) The process of photosynthesis is

A) reductive, exergonic and catabolic

B) reductive, endergonic and catabolic

C) reductive, exergonic and anabolic

D) reductive, endergonic and anabolic

• question_answer149) Which is the correct sequence of code transfer involved in the formation of polypeptide?

A) $\text{DNA}-t\text{RNA}-r\text{RNA}-m\text{RNA}$

B) $t\text{RNA}-\text{DNA}-m\text{RNA}-r\text{RNA}$

C) $m\text{RNA}-t\text{RNA}-\text{DNA}-\text{amino}\,\text{acid}$

D) $\text{DNA}-m\text{RNA}-t\text{RNA}-\text{amino}\,\,\text{acid}$

• question_answer150) Cancer is the Bank of life which of the following tumour form is non-cancerous?

A) Benign tumour

B) Malignant tumour

C) Carcinogens

D) All of these

• question_answer151) The Cri-du-chat syndrome is caused by change in chromosome structure involving

A) deletion

B) duplication

C) inversion

D) translocation

• question_answer152) When synapsis is complete all along the chromosome, the cell is said to have entered a stage called

A) zygorene

B) pachytene

C) diplotene

D) diakinesis

• question_answer153) How does pruning help in making the hedge dense?

A) It induces the differentiation of new shoots from the rootstock

B) It frees axillary buds from apical dominance

C) The apical shoot grows faster after pruning

D) It releases wound hormones

• question_answer154) Which one of the following statements is correct?

A) Neurons regulate endocrine activity, but not vice versa,

B) Endocrine glands regulate neural activity and nervous system regulates endocrine glands.

C) Neither hormones control neural activity nor the neurons control endocrine activity.

D) Endocrine glands regulate neural activity but not vice versa.

• question_answer155) Evolutionary history of an organism is known as

A) phylogeny

B) ancestry

C) paleontology

D) ontogeny

• question_answer156) Sertoli cells are regulated by the pituitary hormone known as

A) FSH

B) GH

C) prolactin

D) LH

• question_answer157) Pulmonary artery differs from pulmonary vein in having

A) no endothelium

B) strong valves

C) Brunners cell

D) thick muscular walls

• question_answer158) Cerebellum portion of brain is

A) concerned with maintainance of posture/equilibrium

B) responsible for olfactory functions

C) controls optic functions

D) Both (a) and (c)

• question_answer159) Which of the following type of mutation involves the reverse order of genes in a chromosome?

A) Deletion

B) Duplication

C) Inversion

D) Reciprocal translocation

• question_answer160) Which one of the following can help in the diagnosis of a genetical disorder?

A) ELISA

B) ABO blood group

C) PCR

D) NMR

• question_answer161) Initiation of polypeptide chain is through

A) methionine

B) glycine

C) lysine

D) leucine

• question_answer162) Which one of the following is incorrect about the characteristics of protobionts (co-aservates) and microspheres as ensvisaged in the abiogenic origin of life?

A) They were able to reproduce

B) They could separate combinations of molecules from the surroundings

C) They are partially surrounded by the surroundings

D) They could maintain an internal environment

• question_answer163) At which stage of HIV infection does one usually shows symptoms of AIDS?

A) When viral DNA is produced by reverse transcriptase

B) When HIV replicates rapidly in helper T-lymphocytes and damages large number of cells

C) Within these 15 days of sexual contact with an infected person

D) When the infecting retrovirus enters the host cells

• question_answer164) When $C{{O}_{2}}$ concentration in blood increases breathing becomes

A) shallower and slow

B) there is no effect on breathing

C) slow and deep

D) faster and deeper

• question_answer165) A free living nitrogen fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is

A) Tolypothrix

B) Chlorella

C) Nostoc

D) Anabaena

• question_answer166) Which of the following hormones is not a secretion product of human placenta?

B) Prolactin

C) Oestrogen

D) Progesterone

• question_answer167) The international unit used in biology to measure size of objects is

A) $\mu \,m$ (micrometer)

B) nm (nanometer)

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

D) All are used

• question_answer168) Out of 1.7 million species of living organisms known to us, insects contributes to about

A) 0.7 million

B) 70000

C) 70 lakh

D) one lakh

A) reducing atmosphere (without free oxygen)

B) oxidizing atmosphere (free oxygen)

C) Both (a) and (b)

D) None of the above

• question_answer170) The white fibres are resistant to streaching and formed of a substance, the protein collagen, which on boiling with water yields

A) gelatin

B) elastin

C) ossein

D) chondrin

• question_answer171) Which one of the following is not used in production of yoghurt?

A) Streptococcus lactis

B) S. thermophiles

C) Lactobacillus bulgaricus

D) Acetobacter aceti

• question_answer172) Viagra is an anti-impotent drug. Its chemical salt is

A) sildenafil citrate

B) nitrous oxide

C) nitroglycerine

D) digitoxyline

• question_answer173) Two mating types of a variety of Paramecium are

A) morphologically different and physio-logically similar

B) morphologically similar and physiologically different

C) physiologically similar

D) physiologically different

• question_answer174) Correct sequence among the following is

A) Palaeozoic $\to$Mesozoic $\to$ Coenozoic

B) Mesozoic $\to$ Archaeozoic $\to$ Proterozoic

C) Palaeozoic $\to$ Archaeozoic$\to$ Coenozoic

D) Archaeozoic $\to$ Palaeozoic$\to$ Proterozoic

• question_answer175) The epithelial cells lining the stomach of vertebrates is protected from damage by $HCl$because

A) $HCl$ is too dilute

B) the epithelial cells are resistant to the action of$HCl$

C) $HCl$is neutralized by alkaline gastric juice

D) the epithelial cells are covered with a mucous secretion

• question_answer176) In situ conservation of genetic diversity is done in the form of

A) national parks

B) biosphere reserves

C) wildlife sanctuaries

D) All of the above

• question_answer177) Pyrenoids are centre of

A) fat storage

B) starch storage

C) protein formation

D) enzyme formation

• question_answer178) Damping off a seedling is due to

A) Nematode

B) Albugo Candida

C) Fusarium oxysporium

D) Pythium debaryanum

• question_answer179) Which one is not a vestigial organ of man?

A) Nictitating membrane

B) Epiglottis or ileum

C) Vermiform appendix

D) Muscles or ear pinnae

• question_answer180) Reason, will, memory, intelligence and emotions are governed by

A) cerebellum

B) mid brain

C) medulla oblongata

D) cerebral hemispheres

• question_answer181) Directions: Select the related word/letter/number from the given alternatives. Life : Death :: Beginning : ?

A) Era

B) End

C) Time

D) Commence

• question_answer182) Arrange the following words according to English Dictionary.

A) 1, 2, 3, 4

B) 3, 4, 2, 1

C) 3, 2, 4, 1

D) 4, 1, 2, 3

• question_answer183) Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it? KLM_, KL_N, K_MN, _LMN

A) NMLK

B) KLMN

C) LKNM

D) KLNM

• question_answer184) Find the wrong number in the given series. 6, 14, 31, 64, 137, 280

A) 31

B) 64

C) 137

D) 280

• question_answer185) Pointing to a girl in a bus, a man tells his friend, She is the daughter of the only son of my fathers wife. How is the girl related to the man?

A) Cousin

B) Daughter

C) Mother

D) Sister

• question_answer186) There are five friends Suresh, Kaushal, Madhur, Amit and Ramesh. Suresh is shorter than Kaushal but taller than Ramesh. Madhur is the tallest. Amit is a little shorter than Kaushal but little taller than Suresh. If they stand in the order of their heights, who will be the shortest?

A) Amit

C) Ramesh

D) Kaushal

• question_answer187) From the given alternatives, select the word which cannot be formed using the letters of the given word. HISTORICAL

A) RICHES

B) CHARIOT

C) CHART

D) CHAOS

• question_answer188) Directions: Select the missing number from the given responses.

 8 72 9 6 66 11

A) 64

B) 60

C) 52

D) 54

• question_answer189) Directions: Select the missing number from the given responses.

 14 25 42 2 4 6 3 3 ?

A) 3

B) 4

C) 6

D) 7

• question_answer190) X walks Southwards and then turns right, then left and then right. In which direction is he moving now?

A) South

B) North

C) West

D) South-West

• question_answer191) Kalpana travelled from point B straight to C, a distance of 8 ft. She turned left and walked 5 ft away. Again, she turned left and walked 7 ft and finally turned left and walked 5 ft. How far is she from the starting point?

A) 3 ft

B) 4 ft

C) 1 ft

D) 5 ft

• question_answer192) Two statements are given followed by two Conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You are to decide which of the given conclusions, if any, follow from the given statements. Indicate your answer.

 Statements Teaching is an art. Drawing is also an art. Conclusions I. All artists are teachers. II. All artists know to draw pictures.

A) Only Conclusion I follows

B) Only Conclusion II follows

C) Neither Conclusion I nor II follows

D) Both Conclusions I and II follow

• question_answer193) Which answer figure will complete the pattern in the question figure? Question Figure Answer Figures

A)

B)

C)

D)

• question_answer194) A piece of paper is folded and cut as shown below in the question figures. From the given answer figures, indicate how it will appear when opened? Questions Figures Answer Figures

A)

B)

C)

D)

• question_answer195) Which of the answer figure is exactly the mirror image of the given figure, when the mirror is held on the line AB? Question Figure Answer Figures

A)

B)

C)

D)

• question_answer196) Directions:- Some parts of the sentence have errors and some are correct. Find out which part of a sentence has an error corresponding to the appropriate letter (a), (b) and (c). If a sentence is free from errors, mark the answer (d).

A) Supposing if

B) / it rains

C) / what shall we do?

D) / No error

• question_answer197) Directions:- Some parts of the sentence have errors and some are correct. Find out which part of a sentence has an error corresponding to the appropriate letter (a), (b) and (c). If a sentence is free from errors, mark the answer (d).

A) The captain along with his team

B) / are practicing very hard

C) / for the forthcoming match,

D) / No error

• question_answer198) Directions: Out of the four alternatives, choose the one which best expresses the meaning of the given word and mark it in the answer sheet. Defer

A) Indifferent

B) Defy

C) Differ

D) Postpone

• question_answer199) Directions: Out of the four alternatives, choose the one which best expresses the meaning of the given word and mark it in the answer sheet. Cease

A) Begin

B) Stop

C) Create

D) Dull

• question_answer200) Directions: Out of the four alternatives, choose the one which best expresses the meaning of the given word and mark it in the answer sheet. Pious

A) Religious

B) Sympathetic

C) Afraid

D) Faithful

• question_answer201) Directions: Choose the word opposite in meaning to the given word and mark it in the answer sheet. Stingy

A) Clean

B) Tight

C) Generous

D) Cheap

• question_answer202) Directions: Choose the word opposite in meaning to the given word and mark it in the answer sheet. Barren

A) Fertile

B) Rich

C) Prosperous

D) Positive

• question_answer203) Directions: Four alternatives are given for the idiom/phrase. Choose the alternative which best expresses the meaning of the idiom/phrase and mark it in the answer sheet To look down ones nose

A) To show anger

B) To retaliate

C) To insult in the presence of others

D) To regard with contempt

• question_answer204) Directions: Four alternatives are given for the idiom/phrase. Choose the alternative which best expresses the meaning of the idiom/phrase and mark it in the answer sheet To shed crocodile tears

A) To weep profusely

B) To pretend grief

C) To grieve seriously

D) To mock something

• question_answer205) Directions: A part of the sentence is underlined which may need improvement. Alternatives are given at (a), (b) and (c) below, which may be better option. In case no improvement is needed, your answer is (d). The cheapest electronic good are manufactured in China

A) electronical good

B) electrical good

C) electronic goods

D) No improvement

• question_answer206) Directions: A part of the sentence is underlined which may need improvement. Alternatives are given at (a), (b) and (c) below, which may be better option. In case no improvement is needed, your answer is (d). I have been living in Delhi from 1989.

A) eversince

B) since

C) in

D) No improvement

• question_answer207) Directions: Out of the four alternatives, choose the one which can be substituted for the given words/sentence. Murder of a man

A) Regicide

B) Fratricide

C) Homicide

D) Genocide

• question_answer208) Directions: Out of the four alternatives, choose the one which can be substituted for the given words/sentence. Use of force or threats to get someone to agree to something

A) Coercion

B) Conviction

C) Confession

D) Cajolement

• question_answer209) Directions: In the following questions, group of four words are given. In each group, one word is correctly spelt. Find the correctly spelt word and mark it in the answer sheet.

A) Livelihood

B) Livelyhood

C) Livlihood

D) Livelyhud

• question_answer210) Directions: In the following questions, group of four words are given. In each group, one word is correctly spelt. Find the correctly spelt word and mark it in the answer sheet.

A) Foyere

B) Foayer

C) Foyer

D) Fouyer

• question_answer211) If the sum of five consecutive integers is S, then the largest of those integers in terms of S is

A) $\frac{S-10}{5}$

B) $\frac{S+4}{4}$

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

D) $\frac{S+10}{5}$

• question_answer212) The greatest among the numbers$3\sqrt{2},3\sqrt{7},6\sqrt{5},2\sqrt{20}$ is

A) $3\sqrt{2}$

B) $3\sqrt{7}$

C) $6\sqrt{5}$

D) $2\sqrt{20}$

• question_answer213) The denominator of a fraction is 3 more than its numerator. If the numerator is increased by 7 and the denominator is decreased by 2, we obtain 2. The sum of numerator and denominator of the fraction is

A) 5

B) 13

C) 17

D) 19

• question_answer214) 47 is added to the product of 71 and an unknown number. The new number is divisible by 7, giving the quotient 98. The unknown number is a multiple of

A) 2

B) 5

C) 7

D) 3

• question_answer215) The least number which, when divided by 16, 18, 20 and 25 leaves 4 as remainder in each case but when divided by 7 leaves no remainder is

A) 17004

B) 18000

C) 18002

D) 18004

• question_answer216) A can do a work in 5 days less than the time taken by B to do it. If both of them together take 11- days, then the time taken by B alone to do the same work (in days) is

A) 15

B) 20

C) 25

D) 30

• question_answer217) The price of a certain television set discounted by 10% and the reduced price n then discounted by 10%. This series of successive discounts is equivalent to a single discount of

A) 20 %

B) 19 %

C) 18 %

D) 11 %

• question_answer218) Rahim bought a TV with 20% discount on list price. Had he bought it with 25% discount, he would have saved Rs. 500. At what price did he buy the TV?

A) Rs. 16000

B) Rs. 12000

C) Rs. 10000

D) Rs. 8000

• question_answer219) If $\frac{a}{3}=\frac{b}{2},$ then value of $\frac{2a+3b}{3a-2b}$is

A) $\frac{12}{5}$

B) $\frac{5}{12}$

C) $1$

D) $\frac{12}{7}$

• question_answer220) A shopkeeper bought pens at the rate of 7 for Rs. 10 and sold them at a profit of 40%. How many pens would a customer get for Rs. 10?

A) 6

B) 4

C) 5

D) 3

• question_answer221) If the cost price of 10 articles is equal to the sales price of 16 articles, then the gain or loss per cent is

A) 28% profit

B) $37\frac{1}{2}%$profit

C) 28% loss

D) $37\frac{1}{2}%$loss

• question_answer222) Three persons A, B and C whose salaries together amount to Rs. 72000, spend 80, 85 and 75 per cent of their salaries respectively. If their savings are in the ratio 8 : 9 : 20, then As salary is

A) Rs. 20000

B) Rs. 16000

C) Rs. 22000

D) Rs. 18000

• question_answer223) Two solutions of 90% and 97% purity are mixed, resulting in 21 L of mixture of 94% purity. The quantity of the second solution in the resulting mixture, in litres, is

A) 15

B) 12

C) 9

D) 6

• question_answer224) A boat travels 24 km upstream in 6 h and 20 km downstream in 4 h. Then, the speed of boat in still water and the speed of water current are respectively

A) 4 km/h and 3 km/h

B) 4.5 km/h and 0.5 km/h

C) 4 km/h and 2 km/h

D) 5 km/h and 2 km/h

• question_answer225) If the difference between simple interest and compound interest on a certain sum of money for 3 yr at 10% per annum is Rs. 31, the sum is

A) Rs. 500

B) Rs. 750

C) Rs. 1000

D) Rs. 1250

• question_answer226) Which one of the following is not an objective of fiscal policy in India?

A) Full employment

B) Price stability

C) Equitable distribution of wealth and incomes

• question_answer227) Which one of the following is not a quantitative credit control measure of a Central Bank?

A) Bank Rate Policy

B) Open Market Operations

C) Cash Reserve Ratio

D) Moral Suasion

• question_answer228) In which market structure is the demand curve of the market represented by the demand curve of the firm?

A) Monopoly

B) Oligopoly

C) Duopoly

D) Perfect competition

A) sowing of both cash and food crops

B) sowing of two or more crops in the same field

C) sowing of two or more plants in alternate years

D) rearing of cattle and agriculture

• question_answer230) Which of the following is deducted from NNP to arrive at NI?

A) Indirect tax

B) Capital consumption allowance

C) Subsidy

D) Interest

• question_answer231) Whom did Bal Gangadhar Tilak refer to as his Political Guru?

A) Swami Vivekanand

B) Ram Mohan Roy

C) Sisir Kumar Ghosh

• question_answer232) Who introduced doctrine of lapse?

A) Lord Wellesley

B) Lord Curzon

C) Lord Dalhousie

D) Lord Lytton

• question_answer233) Tides are caused by the gravitational pull of the

A) Earth on the Moon

B) Earth on the Sun

C) Sun and Moon on the Earth

D) Moon on the Earth

• question_answer234) Dry farming in India is extensively practiced in

A) Canara Plains

B) Deccan Plateau

C) Coromandal Plains

D) Ganga Plains

• question_answer235) The Kullu Valley is situated between

B) Ranjoti and Nag Tibba

C) Lesser Himalayas and Siwalik

• question_answer236) Terrace farming is done

A) on the slope of hills

B) in dry regions

C) on roof tops

D) on mountain tops

• question_answer237) The colour change in the Chameleon is due to the presence of

A) haemoglobin

B) chromatophore

C) chlorophyll

D) pneumatophore

A) hyperthyroidism

B) goiter

C) midgut

D) diabetes

• question_answer239) Two richest known sources of edible protein are

A) meat and eggs

B) some algae and other microorganisms

C) soyabean and groundnut

D) milk and leafy vegetables

• question_answer240) The saliva helps in the digestion of

A) proteins

B) starch

C) fibres

D) fats

• question_answer241) Which of the following correctly explains the phenomenon of Test Tube Baby?

A) When every process of embryo formation is in the test tube

B) When the embryo develops in a test tube

C) When the fertilization is external and development is internal

D) When the fertilization is internal and development is external

• question_answer242) Heart attack occurs due to

A) bacterial attack on the heart

B) stopping of heart beat

C) lack of supply of blood to the heart itself

D) impairment of hearts working due to unknown reasons

• question_answer243) Direct conversion of solar energy with the use of a photovoltaic cell results in the production of

A) optical energy

B) electrical energy

C) thermal energy

D) mechanical energy

• question_answer244) A man inside an artificial satellite feels weightlessness because the force of attraction due to earth is

A) zero at that place

B) is balanced by the force of attraction due to moon

C) equal to the centripetal force

D) non-effective due to particular design of the satellite

• question_answer245) When a detergent is added to pure water, its surface tension

A) increases

B) decreases

C) remains constant

D) becomes infinite

A) a comet

B) an asteroid

C) an exploding star

D) a black hole

• question_answer247) The device that converts computer output for transmission over telephone lines is called

A) interface

B) interpreter

C) modem

D) I/O port

• question_answer248) A bug in a programme is a

A) statement

B) error

C) signature

D) Both (b) and (c)

A) methyl alcohol

B) ethyl alcohol

C) butyl alcohol

D) propyl alcohol

• question_answer250) Which of the following processes is used for the production of Biodiesel?

A) Transamination

B) Transcription

C) Trans-esterification

D) Translation

• question_answer251) One property of ammonia is

A) it is insoluble in water

B) it is a odourless gas

C) it is a yellowish gas

D) its aqueous solution turns red litmus to blue

• question_answer252) Of the following, which one pollutes the air of a big city?

A) Copper

B) Chromium

D) Calcium

• question_answer253) Ultraviolet light of Suns radiation is prevented from reaching the Earths atmosphere by the layer of

A) Oxygen

B) Hydrogen

C) Ozone

D) Helium

• question_answer254) Greater population can be supported on the Earth only if we eat more

A) mutton

B) eggs

C) plant products

D) beef

A) an astronaut

B) a space shuttle

C) a power station

D) an ancient astronomer

A) mica

B) asbestos

C) talc

D) steatite

• question_answer257) Tummalapalli in Andhra Pradesh has recently come on the world map for its largest

A) uranium deposits

B) tungsten deposits

C) coal deposits

D) bauxite ore deposits

• question_answer258) As per the provisional result of the 2011 Census, the density of population in India is

A) 325

B) 352

C) 372

D) 382

• question_answer259) Rath Yatra at Puri is celebrated in honour of

A) Lord Rama

B) Lord Shiva

C) Lord Jagannarh

D) Lord Vishnu

• question_answer260) Gagan Narang, whose name has been recommended for Rajiv Gandhi Khel Ratna Award is a famous

A) motor car racer

B) cricketer

C) air rifle shooter

D) footballer

• question_answer261) The five permanent members of the United Nations Security Council are

A) Canada, China, France, USA, UK

B) China, France, Russia, USA, UK

C) Japan, Germany, Russia, USA, UK

D) Germany, China, Russia, USA, UK

• question_answer262) Which city has the headquarters of two railway zones in India?

A) Hubli

B) New Delhi

C) Mumbai

D) Jabalpur

• question_answer263) Who acts as the Chairman of the State Planning Board?

A) Governor

B) Chief Minister

D) Speaker

A) accessory respiratory organ

B) hydrostatic organ

C) both accessory respiratory organ and hydrostatic organ

D) primary respiratory organ

• question_answer265) Which of the following is called Blue Planet?

A) Saturn

B) Earth

C) Jupiter

D) Mars

• question_answer266) In cauliflower plant, the useful part is

A) underground stem

B) root

C) young inflorescence

D) leaves

• question_answer267) Aurobindo Ghosh was arrested in connection with

A) Alipore Bomb Case

B) Kolhapur Bomb Case

C) Lahore Conspiracy Case

D) Kakori Case

• question_answer268) Manchester of South India is

A) Coimbatore

C) Bengaluru

D) Chennai

• question_answer269) The acid stored in batteries is

A) sulphuric acid

B) nitric acid

C) hydrochloric acid

D) acetic acid

• question_answer270) Heavy metal pollution of water is caused by

A) paints

B) wood burning

C) acid plants

D) domestic sewage

• question_answer271) Which of the following Public Undertakings has not been conferred with Maharatna Status?

A) SAIL

B) BHEL

C) ONGC

D) Coal India Limited

• question_answer272) Who is known as the Indian Bismarck?

A) Vallabhbhai Patel

B) Subhash Chandra Bose

C) Bhagat Singh

• question_answer273) Which one of the four regions above the Earth has smallest height (km)?

A) Stratosphere

B) Mesosphere

C) Thermosphere

D) Troposphere

• question_answer274) Which State of India shows the lowest population as per Census 2011?

A) Manipur

B) Tripura

C) Puducherry

D) Sikkim

A) Website of each railway division

B) the onboard medical officer in every train to attend to medical emergencies

C) security guard in every AC coach of Rajdhani/ Shatabdi and AC Duronto Express

D) an onboard magazine of Indian Railways to be available in Rajdhani/Shatabdi/AC Duronto Express

• question_answer276) Which one of the following ceased to be a Fundamental Right under the Constitution?

A) Right to Education

B) Right to Work

C) Right to Property

D) Right to Equality before Law

• question_answer277) Coffee Research Institute of India is located at

A) Yercaud

C) Coorg

D) Coimbatore

• question_answer278) How many major seaports are there in India?

A) 6

B) 9

C) 10

D) 12

• question_answer279) The members of the Rajya Sabha are elected for a term of

A) two years

B) four years

C) five years

D) six years

• question_answer280) When was National Emergency imposed by the President of India on the grounds of internal disorder?

A) 1962

B) 1965

C) 1971

D) 1975

• question_answer281) Which One of the following is an example for Monopoly?

A) SPIC

B) Indian Railways

C) HMT

D) Hindustan Unilever Limited

A) lower wavelengths only

B) intermediate wavelengths only

C) higher wavelengths only

D) all wavelengths

• question_answer283) The only Hindu courtier of Akbar who accepted Deen-e-Illahi was

A) Todermal

B) Birbal

C) Tansen

D) Man Singh

• question_answer284) The chemical which is used in art and craft and can cause anemia and leukaemia is

A) benzene

B) dioxine

C) phthalate

D) aldrin

• question_answer285) Which Party was established by Subhash Chandra Bose after he came out of Indian National Congress?

A) Indian National Army

B) Republican Party

C) Forward Block

D) Socialist Party

• question_answer286) The Rama Krishna Mission was established by

A) Vivekananda

B) Rama Krishna

D) Keshab Chandra Sen

• question_answer287) The year of accession of Kanishka to thro was

• question_answer288) Total number of muscles present in our bod is

A) 565

B) 656

C) 665

D) 556

• question_answer289) Which of the following Mughal Emperors credited with composition of Hindi songs?

A) Babar

B) Akbar

C) Jahangir

D) Shahjahan

• question_answer290) WTO came into existence in the year

A) 1977

B) 1985

C) 1995

D) 1950

• question_answer291) Hydraulic machines work under the Principle of

A) Newtons Law

B) Joules Law

C) Pascals Law

D) Floatation Law

A) Orville Wright and Wilbur Wright

B) Sir Frank Whittle

D) Christian Huygens

• question_answer293) World Bank helps countries with loans for the purpose of

A) reconstruction and development

B) stimulating private investment

C) tailing foreign exchange crises

D) meeting deficits in government budget

• question_answer294) Which is not a Central Service?

A) Indian Police Service ((IPS)

B) Indian Foreign Service (IFS)

C) Indian Audit and Accounts Service (IAAS)

D) Indian Revenue Service (IRS)

• question_answer295) The first Indian State which was created on linguistic basis following along draw agitation is

B) Asom

D) Karriataka

• question_answer296) The Great Barrier reef is

A) conglomeration of Corals in Australian waters

B) mountains range in Utah, USA

C) salt hills of Afghanistan

D) sub-oceanic mountain in South China Sea

A) Mediterranean Sea with Red Sea

B) Atlantic Ocean with Indian Ocean

C) Indian Ocean with Mediterranean

D) Atlantic Ocean with Pacific Ocean

• question_answer298) C, BASIC, COBOL, and Java are examples of ....... language.

A) low level

B) computer

C) system programing

D) high - level

• question_answer299) .............. is approximately one billion bytes.

A) Kilobyte

B) Bit

C) Gigabyte

D) Megabyte

• question_answer300) The wildlife week is celebrated from

A) 2-8 October

B) 1-7 June

C) 16-22 April

D) 14 -20 January