# Solved papers for CET Karnataka Medical CET - Karnataka Medical Solved Paper-2000

### done CET - Karnataka Medical Solved Paper-2000

• question_answer1) The equation of progressive wave is: $y=0.2\,\sin \,2\pi \left[ \frac{t}{0.01}-\frac{x}{0.3} \right]$ where x and y are in metre and t is in second. The velocity of propagation of the wave is:

A) 30 m/s

B) 40 m/s

C) 300 m/s

D) 400 m/s

• question_answer2) A chimpanzee swinging on a swing in a sitting position, stands up suddenly, the time period will:

A) become infinite

B) remain same

C) increase

D) decrease

• question_answer3) If the ratio of radii of two spheres of same material is 1 : 4 then the ratio of their heat capacities is:

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

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

C) $\frac{1}{16}$

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

• question_answer4) Transverse waves can propagate in:

A) liquids

B) solids

C) gases

D) none of these

• question_answer5) A box is lying on an inclined plane what is the coefficient of static friction if the box starts sliding when an angle of inclination is $60{}^\circ$:

A) 1.173

B) 1732

C) 2732

D) 1-677

• question_answer6) For which of the following combination of working temperatures, the efficiency of Carnots engines is highest?

A) 100 K, 80 K

B) 80 K, 60 K

C) 60 K, 40 K

D) 40 K, 20 K

• question_answer7) Myopia is corrected by:

A) cylindrical lens

B) bifocal lens

C) concave lens

D) convex lens

• question_answer8) On increasing the temperature of a substance gradually, which of the following colours will be noticed by you:

A) white

B) yellow

C) green

D) red

• question_answer9) The relation between n1 and n2, if behaviour of light rays is as shown in figure is:

A) ${{n}_{1}}>>{{n}_{2}}$

B) ${{n}_{2}}>{{n}_{1}}$

C) ${{n}_{1}}>{{n}_{2}}$

D) ${{n}_{1}}={{n}_{2}}$

• question_answer10) An aeroplane is flying with a uniform speed of 100 m/s along a circular path of radius 100 m. The angular speed of the aeroplane will be:

• question_answer11) In an A.C. circuit the reactance of a coil is $\sqrt{3}$ times its resistance, the phase difference between the voltage across the coil to the current through the coil will be:

A) $\pi /3$

B) $\pi /2$

C) $\pi /4$

D) $\pi /6$

• question_answer12) $v1$ and $v2$ are the velocities of sound at the same temperature in two monoatomic gases of densities $\rho 1$ and $\rho 2$ respectively. If $\rho 1/\rho 2=\frac{1}{4},$ then the ratio of velocities v1 and v2 will be:

A) 1 : 2

B) 4 : 1

C) 2 : 1

D) 1 : 4

• question_answer13) The resistance of a conductor is 5 ohm at $50{}^\circ C$ and 6 ohm at $100{}^\circ C$. Its resistance at $0{}^\circ C$ is:

A) 1 ohm

B) 2 ohm

C) 3 ohm

D) 4 ohm

• question_answer14) n identical droplets charged to the same potential V coalesce to form a single bigger drop. The potential of the new drop will be:

A) nV

B) $\frac{V}{n}$

C) ${{n}^{2/3}}V$

D) $n{{V}^{2}}$

• question_answer15) If in a wire of Youngs modulus Y, longitudinal strain X is produced, then the value of potential energy stored in its unit volume will be:

A) $0.5Y{{X}^{2}}$

B) $0.5{{Y}^{2}}X$

C) $2Y{{X}^{2}}$

D) $Y{{X}^{2}}$

• question_answer16) Light is incident on a glass plate at an angle 60?, the reflected and refracted rays are mutually perpendicular to each other, then the refractive index of plate will be:

A) 1-732

B) 1-5

C) 1-4

D) 1-5

• question_answer17) A sound source is moving towards a stationary listener with 1 / 10th of the speed of the sound. The ratio of apparent to real speed will be:

A) ${{\left( \frac{11}{10} \right)}^{2}}$

B) ${{\left( \frac{9}{10} \right)}^{2}}$

C) $\frac{10}{9}$

D) $\frac{11}{10}$

• question_answer18) The Youngs double slit experiment, the separation between the slits is halved and the distance between slits and screen is doubled. The fringes width will:

A) remain the same

C) be doubled

D) be halved

• question_answer19) A source X of unknown frequency produces 8 beats per second, with a source of 250 Hz and 12 beats per second with a source of 270 Hz. Then the frequency of the source X will be:

A) 284 Hz

B) 265 Hz

C) 258 Hz

D) 252 Hz

• question_answer20) The relation between $\alpha$ and $\beta$ parameters of a transistor is given by:

A) $\alpha =\frac{1-\beta }{\beta }$

B) $\frac{\beta }{1-\beta }$

C) $\alpha =\frac{1+\beta }{\beta }$

D) $\alpha =\frac{\beta }{1+\beta }$

• question_answer21) A diffraction is obtained by using a beam of red light. What will happen if the red light is replaced by the blue light?

A) bands will narrower and crowd full together

B) bands become broader and further apart

C) no change will take place

D) bands disappear

• question_answer22) After an interval of one day, 1/6th of the initial amount of a radioactive material remains in a sample. Its half life will be:

A) 2 hour

B) 3 hour

C) 6 hour

D) 12 hour

• question_answer23) Two coherent light beams of intensity $I$and $4I$ are superimposed. The maximum and minimum possible intensities in the resulting beam are:

A) $9I$ and $3I$

B) $9I$ and $I$

C) $5I$ and $3I$

D) $5I$ and $I$

• question_answer24) If the energy released in the fission of one nucleus is 200 MeV. Then the number of nuclei required per second in a power plant of 16 kW will be:

A) $0.5\times 1014$

B) $0.5\times {{10}^{12}}$

C) $5\times {{10}^{12}}$

D) $5\times {{10}^{14}}$

• question_answer25) Diffraction effects are easier to notice in the case of sound waves than in case of light waves, because the sound waves are:

A) of longer wavelengths

B) of shorter wavelengths

C) longitudinal waves

D) mechanical waves

• question_answer26) If R is the Rydbergs constant for hydrogen the wave number of the first line in the Lyman series will be:

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

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

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

D) $2R$

• question_answer27) The resistance of an ideal ammeter will be:

A) zero

B) small

C) very high

D) infinite

• question_answer28) The energy that should be added to an electron, to reduce its de-Broglie wavelengths from ${{10}^{-10}}m$to $0.5~\times {{10}^{-10}}m,$ will be:

A) four times the initial energy

B) thrice the initial energy

C) equal to the initial energy

D) twice the initial energy

• question_answer29) A cube of side b has a charge q at each of its vertices. The electric field at the centre of the cube is:

A) $\frac{2q}{{{b}^{2}}}$

B) $\frac{q}{2{{b}^{2}}}$

C) zero

D) $\frac{q}{{{b}^{2}}}$

• question_answer30) The magnetic flux linked with a coil, in webers, is given by the equations $\phi =3{{t}^{2}}+4t+9.$ Then the magnitude of induced emf at t = 2 second will be:

A) 2 volt

B) 4 volt

C) 8 volt

D) 16 volt

• question_answer31) A hot wire ammeter reads 10 amp. In an A.C. circuit. The peak value of the current will be:

A) $\frac{3}{\pi }$ amp

B) $\frac{10}{\sqrt{2}}$ amp

C) $10\sqrt{2}\,amp$

D) $6\pi$amp

• question_answer32) A and B are two concentric circular conductors of centre O and carrying currents n and n. as shown in the diagram. If ratio of their radii is 1 : 2 and ratio of the flux densities at O due to A and is 1 : 3 then the value of $\frac{i1}{i2}$ will be:

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

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

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

D) $\frac{1}{6}$

• question_answer33) Two capacitors of capacitance ${{C}_{1}}$and ${{C}_{2}}$are charged to potentials ${{V}_{1}}$and ${{V}_{2}}$respectively. When they are connected in parallel the ratio of their respective charges will be:

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

B) $\frac{{{C}_{1}}^{2}}{{{C}_{2}}^{2}}$

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

D) $\frac{{{V}_{1}}^{2}}{{{V}_{2}}^{2}}$

• question_answer34) An example of a diamagnetic substance is:

A) aluminium

B) copper

C) iron

D) nickel

• question_answer35) In a charged capacitor, the energy is stored in:

A) centre of the plates

B) edges of the plates

C) between the plates

D) none of these

• question_answer36) Relative permeability of iron is 5500, then its magnetic susceptibility will be:

A) $5500\times {{10}^{7}}$

B) $5500\times {{10}^{-7}}$

C) 5501

D) 5499

• question_answer37) In a typical Wheatstone network the resistances in cyclic order are $A=10\Omega ,B=5\Omega ,C=4\Omega$and $D=4\Omega$ for the bridge to be balanced:

A) $10\Omega$should be connected in parallel with A

B) $10\Omega$ should be connected in series with A

C) $5\Omega$should be connected in series with B

D) $5\Omega$ should be connected in parallel with B

• question_answer38) An electron of mass m and charge q is travelling with a speed v along a circular path of radius r at right angles to a uniform magnetic field B, if speed of the electron is doubled and magnetic field is halved, then the resulting path would have a radius:

A) 4r

B) 2r

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

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

• question_answer39) Two resistances ${{r}_{1}}$and ${{r}_{2}}\text{(}{{r}_{1}}<{{r}_{2}}\text{)}$are connected in parallel. The equivalent resistance R is such that:

A) $R>\left( {{r}_{1}}+{{r}_{2}} \right)$

B) $R>\left( {{r}_{1}}+{{r}_{2}} \right)$

C) ${{r}_{1}}<R<{{r}_{2}}$

D) $R<{{r}_{1}}$

• question_answer40) The potential at a point, due to a positive charge of 100 $\mu$C at a distance of 9 m, is:

A) ${{10}^{7}}$volt

B) ${{10}^{6}}$ volt

C) ${{10}^{5}}$volt

D) ${{10}^{4}}$ volt

• question_answer41) Four wires of identical length, diameters and of the same material are stretched on a sonometre wire. If the ratio of their tensions is 1 : 4 : 9 : 16 then the ratio of their fundamental frequencies are:

A) 16 : 9 : 4 : 1

B) 4 : 3 : 2 : 1

C) 1 : 4 : 2 : 16

D) 1 : 2 : 3 : 4

• question_answer42) An echo is heard when the minimum distance of the reflecting surface is:

A) 47 m

B) 34 m

C) 17 m

D) 9 m

• question_answer43) In which process the P-V indicator diagram is a straight line parallel to volume axis?

A) irreversible

C) isothermal

D) isobaric

• question_answer44) The kinetic energy of a body becomes four times its initial value. Then the linear momentum will be:

A) four times the initial value

B) three times the initial value

C) twice the initial value

D) same as the initial value

• question_answer45) At which temperature, the Fahrenheit and Centigrade scales are equal:

A) $-48{}^\circ$

B) $-40{}^\circ$

C) $37{}^\circ$

D) $40{}^\circ$

• question_answer46) A uniform wire of resistance R is uniformly compressed along its length, until the radius becomes n times the original radius. Now resistance of the wire becomes:

A) $nR$

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

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

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

• question_answer47) The impurity atom that should be added the germanium to make it n-type will be:

A) aluminium

B) arsenic

C) indium

D) iodine

• question_answer48) The waves that cannot be polarized are:

A) electromagnetic waves

B) longitudinal waves

C) transverse waves

D) light waves

• question_answer49) An empty vessel is partially filled with water, then the frequency of vibration of air column in the vessel:

A) remains same

B) decreases

C) increases

D) first increases then decreases

• question_answer50) A man suffering from short sight is unable to see objects distinctly at a distance more than 2m. The power of lens required to correct this defect of the eye should be:

A) + 2 D

B) + 0.50 D

C) - 2 D

D) - 0.5D

• question_answer51) A monoatomic gas is suddenly compressed to 1/8th of its initial volume adiabatically. The ratio of its final pressure to initial pressure will be (Y = 5/3):

A) 8

B) 24

C) 32

D) 40

• question_answer52) 2 kg mass is rotating on a circular path of radius 0-8 m with an angular velocity of 44 rad /sec. If the radius of the path becomes 1 m. Then value of angular velocity is:

• question_answer53) A whistle of frequency 500 Hz tied to the end of a string of length 1-2 m revolves at 400 rev/min. A listener standing some distance away in the plane of rotation of whistle nears frequencies in the rays (speed of sound =340 m/s):

A) 436 to 586

B) 426 to 574

C) 436 to 574

D) 436 to 574

• question_answer54) The dispersive powers of crown and flint glasses are 0-02 and 0-04 respectively. In an achromatic combination of lenses the focal length of flint glass lens is 40 cm. The focal length of crown glass lens will be:

A) - 20 cm

B) + 20 cm

C) - 10 cm

D) + 20 cm

• question_answer55) Two insulated metallic spheres of capacitances 3 $\mu$F and 5$\mu$F are charged to 300 volts and 500 volts respectively. The energy loss when they are connected by a wire is:

A) 0.035 J

B) 1.5 J

C) 3.75 J

D) 0.0375 J

• question_answer56) The Gardner waters the plants by a pipe of diameter 1 mm. The water comes out at the rate of 10 cm /sec. The reactionary force exerted on the hand of the gardner is:

A) zero

B) $1.27\times {{10}^{-2}}N$

C) $1.27\times {{10}^{-4}}N$

D) 0.127 N

• question_answer57) A thin hollow cylinder open at both ends: (i) sliding without rotating (ii) rolls without slipping, with the same speed the ratio of kinetic energy in the two cases is:

A) 1 : 1

B) 4 : 1

C) 1 : 2

D) 2 : 1

• question_answer58) A rain drop of radius 0.3 mm has a terminal velocity of 1 m/s in air. The viscosity of air is $18\times {{10}^{-5}}$poise. The visious forces on the drop will be:

A) $16.95\times {{10}^{-9}}N$

B) $1.695\times {{10}^{-9}}N$

C) $10.17\times {{10}^{-9}}N$

D) $101.73\times {{10}^{-9}}N$

• question_answer59) The force required to separate two glass plates of area ${{10}^{-2}}{{m}^{2}}$with a film of water 0.05 mm thick between them, is (Surface tension of water is$70~\times {{10}^{-3}}N/m$)

A) 28 N

B) 14 N

C) 50 N

D) 38 N

• question_answer60) The dimension of $\frac{1}{2}{{\varepsilon }_{0}}{{E}^{2}}$ (${{\varepsilon }_{0}}$is the permittivity of free space, and E is electric field), is:

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

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

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

D) $[ML{{T}^{-1}}]$

• question_answer61) Which one of the following defects in the crystals lowers its density?

A) F centres

B) Interstitial defect

C) Frenkel defect

D) Schottky

• question_answer62) ${{H}_{2}}(g)+C{{l}_{2}}(g)\to 2HCl(g).$ $\Delta H=-44k.cal$ $2Na(s)+2HCl(g)\to 2NaCl(s)+{{H}_{2}}(g),$ $\Delta H=-152k.cal$ For the reaction, $Na(s)+\frac{1}{2}C{{l}_{2}}(g)\xrightarrow{{}}NaCl(s),\Delta H=?$

A) $-108k,\,cal$

B) $-196k,\,cal$

C) $-98k,\,cal$

D) $54k,\,cal$

• question_answer63) The fatty acid that shows reducing property is:

A) acetic acid

B) ethanoic acid

C) oxalic acid

D) formic acid

• question_answer64) By adding $20\text{ }ml\text{ }0.1N\,\,HCl$to $20\text{ }ml\,0.001\text{ }N\text{ }KOH$, the pH of the obtained solution will be:

A) $2$

B) $1.3$

C) $0$

D) $7$

• question_answer65) In the synthesis of ammonia ${{N}_{2}}(g)+3{{H}_{2}}\rightleftharpoons 2N{{H}_{3}}(g)$ When $100ml$. of ${{N}_{2}}$ has reacted, the volume of ${{H}_{2}}$ which has also reacted and ammonia produced are :

A) $300ml$. ${{H}_{2}}$ and$200ml$. $N{{H}_{3}}$

B) $300ml.$${{H}_{2}}$ and $300ml.$. $N{{H}_{3}}$

C) $100ml.$. ${{H}_{2}}$ and $100ml.$. $N{{H}_{3}}$

D) $100ml.$${{H}_{2}}$ and $200ml.$. $N{{H}_{3}}$

• question_answer66) When 9-65 coulombs of electricity is passed through a solution of silver nitrate (atomic mass of $Ag=108g\text{ }mo{{l}^{-1}}$), the amount of silver deposited is:

A) $16-2mg$

B) $21-2mg$

C) $10-8mg$

D) $64mg$

• question_answer67) The strongest Bronsted base in the following anion is:

A) $ClO_{3}^{-}$

B) $ClO_{4}^{-}$

C) $Cl{{O}^{-}}$

D) $ClO_{2}^{-}$

• question_answer68) Bleaching powder loses its power on keeping for a long time because :

A) it changes into calcium hypochlorate

B) it changes into calcium chloride and calcium hydroxide

C) it absorbs moisture

D) it changes into calcium chloride and calcium chlorate

• question_answer69) When potassium ferrocyanide crystals are heated with concentrated sulphuric acid, the gas evolved is:

A) sulphur dioxide

B) ammonia

C) carbon dioxide

D) carbon monoxide

• question_answer70) ${{H}_{2}}+C{{l}_{2}}\xrightarrow{{}}2HCl,\,\Delta H=194kJ$. In this reaction heat of formation of $HCl$ in kJ is:

A) $+914kJ$

B) $+97kJ$

C) $-97kJ$

D) $-194\text{ }kJ$

• question_answer71) One mole of an ideal gas is allowed to expand reversibly and adiabatically from a temperature of ${{27}^{o}}C$. If the work done during the process is 3 kJ, the final temperature will be equal to ($C\upsilon =20\,J\,{{K}^{-1}}$)

A) $150K$

B) $100K$

C) $26-{{85}^{o}}C$

D) $295K$

• question_answer72) Solution of sodium metal in liquid ammonia is strongly reducing due to the presence in the solution of the following:

A) sodium hydride

B) sodium amide

C) sodium atoms

D) solvated electrons

• question_answer73) The IUPAC name of $C{{H}_{3}}-C{{H}_{2}}-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{H}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{\overset{{{C}_{4}}{{H}_{9}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,}}\,}}\,-C{{H}_{3}}$

A) 3, 4, 4-trimethyl-heptane

B) 3, 4, 4-trimethyl-octane

C) 2-butyl, 2-methyl, 3 ethyl butane

D) 2-ethyl, 3, 3-dimethyl-heptane

• question_answer74) Which of the following has lowest percentage of carbon?

A) steel

B) all have same percentage

C) cast ion

D) wrought iron

• question_answer75) When ethanal is heated with Fehlings solution it gives a precipitate of:

A)  $CuO$

B)  $C{{u}_{2}}O+CuO$

C)  $Cu$

D)  $C{{u}_{2}}O$

• question_answer76) The number of unpaired electrons in $F{{e}^{3+}}(Z=26)$are:

A) $5$

B) $6$

C) $3$

D) $4$

• question_answer77) The pKa of a certain weak acid is 4-0. What should be the [salt] to [acid] ratio if we have to prepare a buffer with pH=5 using the acid and one of the salts?

A) $10:1$

B) $1:10$

C) $4:5$

D) $5:4$

• question_answer78) Which one of the following contains both covalent and ionic bonds?

A) $N{{H}_{4}}Cl$

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

C) $CC{{l}_{4}}$

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

• question_answer79) The nitride ion in lithium nitride is composed of:

A) 7 protons $+10$electrons

B) 10 protons $+10$electrons

C) 7 protons $+7$ protons

D) 10 protons $+7$ electrons

• question_answer80) In a face centred cubic cell, an atom at the face contributes to the unit cell:

A) $1/4part$

B) $1/8part$

C) $1part$

D) $1/2part$

• question_answer81) Unpleasant smelling carbylamines are formed by heating alkali and chloroform with:

A) any aliphatic amine

B) any aromatic amine

C) any amine

D) any primary amine

• question_answer82) Which of the following alkyi halides is used as a methylating agent?

A) ${{C}_{2}}{{H}_{5}}Br$

B) ${{C}_{6}}{{H}_{5}}Cl$

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

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

• question_answer83) A radioactive isotope having a half-life of 3 days was received after 12 days. It was found that there were 3 g of the isotope in the container. The initial weight of the isotope when packed was:

A) $36g$

B) $48g$

C) $12g$

D) $24g$

• question_answer84) Cuprous ion is colourless while cupric ion is coloured because :

A) both have half filled p and d-orbitals

B) cuprous ion has incomplete d-orbital and cupric ion has a complete d-orbital

C) both have unpaired electrons in the d-orbitals

D) cuprous ion has a complete d-orbital and cupric ion has an incomplete d-orbital

• question_answer85) Which of the following ions can cause coagulation of proteins?

A) $A{{g}^{+}}$

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

C) $M{{g}^{++}}$

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

• question_answer86) Number of molecules in one litre of water is close to:

A) $\frac{18}{22.4}\times {{10}^{23}}$

B) $55.5\times 6.023\times {{10}^{23}}$

C) $\frac{6.023}{23.4}\times {{10}^{23}}$

D) $18\times 6.023\times {{10}^{23}}$

• question_answer87) Which of the following alkali metal ions has lowest ionic mobility in aqueous solution?

A) $R{{b}^{+}}$

B) $C{{s}^{+}}$

C) $L{{i}^{+}}$

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

• question_answer88) At ${{490}^{o}}C$, the equilibrium constant for the synthesis of $HI$ is 50, the value of K for the dissociation of $HI$ will be:

A) $20.0$

B) $2.0$

C) $0.2$

D) $0.02$

• question_answer89) For which of the following reactions are the numerical value of ${{K}_{p}}$ and ${{K}_{c}}$the same?

A) ${{H}_{2}}(g)+C{{l}_{2}}(g)\rightleftharpoons 2HCl(g)$

B) ${{H}_{2}}(g)+{{I}_{2}}(g)\rightleftharpoons 2HI(g)$

C) $2NOCl(g)\rightleftharpoons 2NO(g)+C{{l}_{2}}(g)$

D) ${{N}_{2}}(g)+3{{H}_{2}}(g)\rightleftharpoons 2N{{H}_{3}}(g)$

• question_answer90) The number of $\pi$-bonds in $C{{H}_{2}}=CH-CH=CH-C\equiv CH$is:

A) $2$

B) $5$

C) $4$

D) $3$

• question_answer91) The normality of $2.3\text{ }M\text{ }{{H}_{2}}S{{O}_{4}}$solution is:

A) $2.3\text{ }N$

B) $4.6\text{ }N$

C) $0.46\text{ }N$

D) $0.23\text{ }N$

• question_answer92) Hydrolytic reaction of fats with caustic soda is known as:

A) acetylation

B) carboxylation

C) esterification

D) saponification

• question_answer93) Aluminium chloride is a/an :

A) Bronsted Lowry acid

B) Arrhenius acid

C) Lewis acid

D) Lewis acid

• question_answer94) A reaction is $A+B\rightleftharpoons C+D$ initially. We start with equal concentration of A and B. At equilibrium we find the moles of C is two times that of A. What is the equilibrium constant of the reaction?

A) $1/4$

B) $1/2$

C) $4$

D) $2$

• question_answer95) Which of the following is not used in Friedel-Crafts reaction?

A) phenyl acetanilide

B) bromobenzene

C) benzene

D) chlorobenzene

• question_answer96) On heating sodium metal in current of dry ammonia, the compound formed is:

A) sodium amide

B) sodium azide

C) sodium nitride

D) sodium hydride

• question_answer97) Hydrogen bonding is maximum in:

A) ethyl chloride

B) triefhyl amine

C) ethanol

D) diethyl ether

• question_answer98) Phenol is heated with pthalic anhydride in presence of cone. ${{H}_{2}}S{{O}_{4}}$. The product gives pink colour with alkali. The product is:

A) phenolphthalein

B) bakelite

C) salicylic acid

D) fluorescein

• question_answer99) A reaction that is of the first order with respect to reactant A has a rate constant $6\text{ }mi{{n}^{-1}}$. If we start with $[A]=0.5\,mol\,{{L}^{-1}}$ when would [A] reach the value $0.05mol\,{{L}^{-1}}$?

A) $0.384\text{ }min$

B) $0.15\text{ }min$

C) $3\text{ }min$

D) $3.84\text{ }min$

• question_answer100) Helium atom is two times heavier than a hydrogen molecule at 298 K. The average kinetic energy of helium is:

A) four times that of a hydrogen molecule

B) half that of a hydrogen molecule

C) two times that of a hydrogen molecule

D) same as that of a hydrogen molecule

• question_answer101) Froth floatation process is used for the metallurgy of:

A) chloride ores

B) amalgams

C) oxide ores

D) sulphide ores

• question_answer102) litre solution of urea contains 240 g urea. The active mass of urea will be

A) $0.04$

B) $0.02$

C) $0.4$

D) $0.2$

• question_answer103) Which of the following does not reduce Benedicts solution?

A) sucrose

B) aldehyde

C) glucose

D) fructose

A) $C{{u}_{2}}S$and $FeS$

B) $CuS$ and $F{{e}_{2}}{{S}_{3}}$

C) $Fe$

D) $C{{u}_{2}}S$

• question_answer105) The name of the product obtained by the addition of $HI$ to propene in presence of peroxide catalyst is:

A) isopropyl iodide

B) 2-iodo propene

C) 2-iodopropane

D) 1-iodopropane

• question_answer106) In Nesslers reagent the ion present is:

A) $Hg{{I}^{2-}}$

B) $HgI_{4}^{2-}$

C) $H{{g}^{+}}$

D) $H{{g}^{++}}$

• question_answer107) The calorific value is maximum in case of:

A) milk

B) minerals

C) carbohydrates

D) proteins

• question_answer108) Flux is used to:

A) remove all impurities from ores

B) reduce metal oxide

C) remove silica

D) remove silica and undesirable metal oxides

• question_answer109) Which of the following molecules has the largest root mean square velocity at ${{25}^{o}}C$?

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

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

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

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

• question_answer110) Stainless steel contains :

A) $Fe+Cr+Cu$

B) $Fe+C+Ni$

C) $Fe+Cr+Ni$

D) $Fe+Ni+Cu$

A) $0.225$to $0.414~$

B) $0.414~$to $0.732$

C) $0$ to $0.155~$

D) $0.155~$to $0.225$

• question_answer112) For the process dry $ice\xrightarrow{{}}C{{O}_{2}}(g)$

A) $\Delta H$ is positive while $\Delta \rho$ is negative

B) both $\Delta H$ and $\Delta \rho$ are negative

C) both $\Delta H$ and $\Delta \rho$ are positive

D) $\Delta H$ is negative while $\Delta \rho$ is positive

• question_answer113) $N{{H}_{3}}$ and $B{{F}_{3}}$ form an adduct readily because they form:

A) a co-ordinate bond

B) a hydrogen bond

C) an ionic bond

D) a covalent bond

• question_answer114) The brown ring test for $N{{O}_{2}}$ and $NO_{3}^{-}$ is due to the formation of complex ion with the formula:

A) ${{[Fe{{({{H}_{2}}O)}_{6}}]}^{2+}}$

B) ${{[Fe(NO)\,\,{{(CN)}_{5}}]}^{2+}}$

C) ${{[Fe{{({{H}_{2}}O)}_{5}}NO]}^{2+}}$

D) ${{[Fe{{({{H}_{2}}O)}_{5}}{{(NO)}_{5}}]}^{2+}}$

• question_answer115) Amino acids usually exist in the form of Zwitter ions. This means that it consists of:

A) the basic group $-N{{H}_{2}}$ and the acidic group $-COOH$

B) the basic group $-NH_{3}^{+}$ and the acidic group $-C{{O}_{2}}$

C) the basic group $-CO_{2}^{-}$ and the acidic group $-NH_{3}^{+}$?

D) no acidic or basic group

• question_answer116) A certain compound gives negative test with ninhydrin and positive test with Benedicts solution; it is:

A) an amino acid

B) a monosaccharide

C) a lipid

D) a protein

• question_answer117) If formaldehyde and KOH are heated we get:

A) methane

B) methyl alcohol

C) ethyl formate

D) acetylene

• question_answer118) Which of the following reagents is used to distinguish ethene from ethyne?

A) bromine in $CC{{l}_{4}}$

B) ammonical $C{{u}_{2}}C{{l}_{2}}$

C) bromine water

D) alkaline KMn04

• question_answer119) Brass is an alloy of:

A) $Al$ and $Zn$

B) $Cu$and $Al$

C) $Ni$ and $Zn$

D) $Cu$ and $Zn$

• question_answer120) In the above reaction X stands for:

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

B) $NH_{3}^{+}C{{l}^{-}}$

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

D) $Cl$

• question_answer121) A molecule of sedoheptulose has carbon atoms numbering:

A) 3

B) 4

C) 6

D) 7

• question_answer122) The genus Euphorbia has:

A) Spike

B) Thyrsus

C) Catkin

D) Cyathium

• question_answer123) The Lac Operon concept of Escherichia coli was proposed in 1961 by:

A) Watson and Crick

B) H.G. Khorana

C) Meselson and Stahl

D) Jacob and Monod

• question_answer124) Heart wood helps in:

A) ascent of sap

B) translocation of food

C) mechanical support

D) circulation of solutes

• question_answer125) Queen Victoria of England was:

A) haemophilic

B) colorblind

C) AIDS patient

D) deaf

• question_answer126) Ion carriers are located in:

A) cell wall

B) intercellular spaces

C) cell membranes

D) nucleus

• question_answer127) The chemical formula of chlorophyll- b is:

A) ${{C}_{55}}{{H}_{72}}{{O}_{5}}{{N}_{5}}Mg$

B) ${{C}_{55}}{{H}_{72}}{{O}_{5}}{{N}_{4}}Mg$

C) ${{C}_{55}}{{H}_{70}}{{O}_{6}}Mg$

D) ${{C}_{55}}{{H}_{70}}{{O}_{5}}{{N}_{5}}Mg$

• question_answer128) The reaction of glycolysis occurs in:

A) mitochondria

B) ribosomes

C) cytoplasm

D) golgi complex

• question_answer129) Grey crescent is present in:

A) eye of frog

B) retina of cockroach

C) brain of rabbit

D) fertilized egg of frog

• question_answer130) The synthesis of w-RNA by DNA is called:

A) Translation

B) Translocation

C) Transcription

D) Chain termination

• question_answer131) Match the names of organisms listed under column I with the diploid number of chromosomes given under  column II choose the answer which gives the correct combination of the alphabets of the two columns:

 Column I (Organism) Column II (Diploid chromosome number) A Allium cepa (Onion) p 20 B Arachis hypogea(Groundnut) q 14 C Pisum sativum (Pea) r 40 D Zea mays (Maize) s 16 t 46

A)  A = p, B = q, C = r, D = s

B)  A = r, B = s, C = p, D = q

C)  A = s, B = r, C = q, D = p

D)  A = s, B = r, C = t, D = q

• question_answer132) Match the terms listed under column I with the structures which they occur given under column II; choose the answer which gives the correct combination of alphabets of the columns:

 Column-I (Structure) Column-II (Occurrence) A Haversian canal p Kidney B Dendrites q Cartilage C Sarcolemma r Muscle D Chondrocytes s Nerve cells t Bone

A) A = t, B = s, C = r, D = q

B) A = s, B = t, C = q, D = r

C) A = q, B = r, C = s, D = t

D) A = p, B = t, C = s, D = t

• question_answer133) A human female reaches menopause around the age of:

A) 25 years

B) 50 years

C) 70 years

D) 15 years

• question_answer134) The total heat content or potential energy of a system is called:

A) free energy

B) enthalpy

C) entropy

D) tropical energy

• question_answer135) Which of the following is used for fruit ripening on commercial scale?

A) 2, 4-D

B) 2, 4, 5-T

C) IAA

D) ethylene

• question_answer136) Match the different types of instruments listed under Column I with their uses given under Column II; choose the answer which gives the correct combination of the alphabets of the two columns:

 Column-I (Instrument) Column-II (Uses) A Auxanometer p Measurement of Imbibition pressure B Photometer q Measurement of Blood pressure C Dilatometer r Measurement of transpiration rate D Sphygmomanometer s Measurement of diffusion t Measurement of growth rate in plants

A) A = t, B = r, C = q, D = p

B) A = t, B = i, C = p, D = q

C) A = t, B = p, C = r, D = q

D) A = s, B = r, C = q, D = p

• question_answer137) The dihybrid test cross ratio is:

A) 3 : 1

B) 9 : 3 : 3 : 1

C) 1 : 1 : 1 : 1

D) 1 : 1

• question_answer138) Molecular Scissors used in genetic engineering is:

A) DNA polymerase

B) DNA ligase

C) restriction endonuclease

D) helicase

• question_answer139) Blood pressure of a healthy person is:

A) 120 / 80

B) 140 / 60

C) 90 / 60

D) 200 / 130

• question_answer140) Person who is colorblind cannot distinguish:

A) yellow and white

B) green and blue

C) black and yellow

D) red and green

• question_answer141) Lateral roots develop from:

A) epiblema

B) pericycle

C) medulla

D) endodermis

• question_answer142) Match the names of plants given under Column I with the families to which they belong given under Column II; choose the answer which gives the correct combination of the alphabets:

 Column-I (Plant names) Column-II (Family names) A Nerium indicum p Arecaceae B Cassia fistula q Solanaceae C Caryota urens r Liliaceae D Nicotiana tobacum s Apocynaceae t Caesalpiniaceae

A) A = s, B = f, C = p, D = q

B) A = s, B = t, C = q, D = p

C) A = t, B = s, C = q, D = p

D) A = s, B = p, C = t, D = q

• question_answer143) Animals living at the bottom of the sea are called:

A) lentic

B) lotic

C) benthic

D) pelagic

A) National Ecological and Environmental Research Institute

B) National Environmental Engineering Research Institute

C) National Ethological and Ecological Research Institute

D) National Eugenics and Ecological Research Institute

• question_answer145) In a human being, the number of cranial nerves are:

A) 10 pairs

B) 12 pairs

C) 6 pairs

D) 20 pairs

• question_answer146) The animal used to explain industrial melanism is:

A) lizard

B) frog

C) monkey

D) peppered moth

• question_answer147) Match the animals list with names under Column I with the animals listed with regular zoological name given Column II; choose the answer which given the correct combination of the alphabets of the two columns:

 Column-I (Animals with common name) Column-II (Animals with zoological name) A Starfish p Sepia B Jellyfish q Asteropecten C Devilfish r Aurelia D Cuttlefish s Octopus t Hippocampus

A) A = q, B = p, C = s, D = r

B) A = q, B = r, C = s, D = p

C) A = t, B = p, C = s, D = q

D) A = t, B = s, C = p, D = r

• question_answer148) Match the names of the diseases/disorders given under Column I with the organ system affected under Column II; choose the answer which gives the correct combination of the alphabets of the two columns:

 Column-I (Diseases/ Disorders) Column-II (Organ system) A Emphysema p Nervous system B Ulcer q Circulatory system C Arteriosclerosis(AS) r Respiratory system D Epilepsy s Digestive system t Excretory system

A) A = r, B = s, C = t, D = q

B) A = r, B = s, C = q, D = p

C) A = r, B = s, C = p, D = t

D) A = r, B = t, C = p, D = q

• question_answer149) Match the names of triplet codons listed under the Column I with the amino acids given under Column II; choose the answer which gives the correct combination of the alphabets of the two columns:

 Column-I (Triplet codons) Column-II (Amino acids) A UUU p Alanine B CCC q Glycine C AAA r Lysine D GGG s Proline t Phenyl alanine

A) A = p, B = r, C = s, D = t

B) A = q, B = r, C = s, D = t

C) A = s, B = t, C = q, D = r

D) A = t, B = s, C = r, D = q

• question_answer150) Emerson effect is associated with:

A) respiration

B) salt absorption

C) photosynthesis

D) transpiration

• question_answer151) Match the names of the structure listed under Column I with the functions given under Column II; choose the answer which gives the correct combination of the alphabets of the two columns:

 Column-I (Structure) Column-II (Function) A Stomata p Protection of stem B Bark q Plant movements C Cambium r Secondary growth D Hydathode s Transpiration t Guttation

A) A = t, B = r, C = p, D = s

B) A = p, B = s, C = t, D = r,

C) A = q, B = s, C = p, D = r

D) A = s, B = p, C = r, D = t

• question_answer152) The species of animal protected in Kaziranga sanctuary is:

A) Panthera leo

B) Rhinoceros unicomis

C) Macaca mulatto

D) Panthera tigris

• question_answer153) The concept of ecological pyramids was developed by:

A) Darwin

B) Elton

C) Reiter

D) Odum

• question_answer154) Match the names of activities listed under Column I with the description of activity given under Column II; choose the answer which gives the correct combination of the alphabets of the two columns:

 Column-I (Activities) Column-II (Description of activity) A Transpiration p Anaerobic respiration in yeast B Guttation q Active absorption of water C Exudation r Loss of water vapour from plant parts D Fermentation s Loss of liquid water from leaves t Loss of water from injured plant parts

A) A = p, B = t, C = s, D = r

B) A = q, B = r, C = s, D = t

C) A = s, B = r, C = p, D = t

D) A = r, B = s, C = t, D = p

• question_answer155) Match the names of branches of science listed under Column I with the field of study given under Column II; choose the choice which gives the correct combination of the alphabets:

 Column-I (Branch of science) Column-II (Field of study) A Mycology p Study of birds B Ornithology q Study of worms C Herpetology r Study of fishes D Ichthyology s Study of fungi t Study of snakes

A) A = s, B =t, C = p, D = r

B) A = s, B =p, C = t, D = r

C) A = p, B =s, C = r, D = t

D) A = q, B =s, C = r, D = t

• question_answer156) The largest gland in the human body is:

A) pancreas

B) brain

D) liver

• question_answer157) The atmospheric humidity is measured by:

A) photometer

B) potometer

C) auxanometer

D) hygrometer

• question_answer158) A cross between ${{F}_{1}}$hybrid and the recessive parent is called:

A) monohybrid cross

B) dihybrid cross

C) trihybrid cross

D) test cross

• question_answer159) Passage cells are found in:

A) endodermis

B) pericycle

C) epidermis

D) pith

• question_answer160) Iodine test is used to detect:

A) malaria

B) typhoid

C) carbohydrates

D) fats

• question_answer161) Tyloses are the structures found in xylem vessels:

A) help in efficient flow of water

B) help in efficient flow of nutrients

C) function is neutral

D) all the time hinders the flow of water

• question_answer162) Match the types of animal tissues listed under Column I with the location given under Column II; choose the answer which gives the correct combination of the alphabets of the two columns:

 Column-I (Tissues) Column-II (Location) A Simple columnar epithelium p Wall of heart B Cardiac muscle q Bone joints C Adipose tissue r Inner lining of stomach and intestine D Hyaline cartilage s Below the skin in the abdomen, buttocks, thighs and breasts t Diaphragm

A) A = p, B = r, C = s, D = t

B) A = r, B = p, C = t, D = s

C) A = r, B = p, C = s, D = q

D) A = r, B = t, C = q, D = s

• question_answer163) As it travels along the food chain the concentration of DDT:

A) increases

B) decreases

C) stays constant

D) fluctuates randomly

• question_answer164) Many transplanted seedlings may not survive because:

A) they do not like the new soil

B) they do not get the required mineral salts

C) the leaves get damaged during the transfer

D) most of the root hairs are lost during transplantation

• question_answer165) Match the name of the scientists given under Column I with the areas of contributions given under Column II; choose the answer which gives correct combination of the alphabets:

 Column-I (Scientists) Column-II (Contributions) A H.H. Dixon and J. Jolly p Photosynthesis B Earnest Munch q Photoperiodism C Levitt r Stomatal mechanism D W.W. Garner and H.H. Allard s Translocation of organic solutes t Ascent of sap

A) A = t, B = s, C = q, D = r

B) A = t, B = r, C = s, D = q

C) A = s, B = t, C = q, D = r

D) A = t, B = s, C = r, D = q

• question_answer166) The blood protein involved in blood coagulation is:

A) thrombin

B) fibrin

C) fibrinogen

D) prothrombin

• question_answer167) Bacteria cannot survive in a highly salted pickle because:

A) the pickle does not contain nutrients necessary for bacteria to live

B) bacteria do not get enough light for photosynthesis

C) bacteria get plasmolysed and are consequently killed

D) salt inhibits reproduction

• question_answer168) Match the name of commonly abused drugs listed under Column I with the example given under Column II; choose the choice which gives the correct combination of the alphabets:

 Column-I (Commonly abused drugs) Column-II (Examples) A Opiates p Ganja and Charas B Stimulants q Nembutal and Seconal C Hallucinogens r Benzedrine and Methedrine D Depressents s Rum and Whisky t Opium and Heroin

A) A = s, B = t, C =r, D = p

B) A = t, B = q, C =r, D = p

C) A = t, B = r, C =q, D = p

D) A = t, B = r, C =p, D = q

• question_answer169) The TMV capsid has capsomeres numbering:

A) 2310

B) 3120

C) 1230

D) 2130

• question_answer170) In the diagram of T.S. of the spinal cord as given below, certain parts have been indicated by alphabets; choose the answer in which these alphabets have been correctly matched with the parts of which they indicate: T.S. of Spinal

A) A = Dorsal septum, B = Dorsal horn C = Grey matter, D = White matter E = Central cavity, F = Ventral root G = Dorsal root and ganglion, H = Venral horn.

B) A = Dorsal septum, B = Dorsal horn C = Central cavity, D = Grey matter E = Ventral hom, P = White matter G = Dorsal root and ganglion, H = Ventral root

C) A = Dorsal septum, B = Dorsal horn, C = Grey matter, D = Central cavity E = White matter, F = Ventral horn, G = Ventral root, H = Dorsal root and ganglion

D) A = Dorsal septum, B = Dorsal horn C = Central cavity, D = Grey matter E = Ventral horn, F = White matter G = Dorsal root and ganglion, H = Ventral root

• question_answer171) The frog that feeds on an insect is a:

A) primary consumer

B) secondary consumer

C) tertiary consumer

D) decomposers

A) 1 ATP

B) 2 APT

C) 3 ATP

D) 38 ATP

• question_answer173) ${{G}_{1}}$, S and ${{G}_{2}}$stages are seen in:

A) prophase

B) metaphase

C) interphase

D) anaphase

• question_answer174) Match the digestive juices listed under Column I with the enzymes given under Column II; choose the choice which gives the correct combination of the alphabets of the two columns:

 Column-I (Digestive juices) Column-II (Enzymes) A Saliva p Disaccharases B Gastric juice q Trypsin C Pancreatic juice r Ptyalin D Intestinal juice s Pepsin t Cellulase

A)  A = r, B = t, C = p, D = q

B)  A = r, B = s, C = p, D = t

C)  A = r, B = s, C = q, D = p

D)  A = s, B = r, C = p, D = t

• question_answer175) Match the names of the parts listed under Column I with the names of the organs listed under Column II; choose the answer which gives the correct combination of the alphabets:

 Column-I (Parts) Column-II (Organs) A Bicuspid valve p Brain B Nephron q Liver C Alveoli r Heart D Cerebrum s Kidney t Lungs

A)  A = s, B = q, C = p, D = t

B)  A = s, B = s, C = p, D = t

C)  A = r, B = t, C = s,D = p

D)  A = r, B = s, C = t, D = p

• question_answer176) Cell eating is called:

A) osmosis

B) diffusion

C) pinocytosis

D) phagocytosis

A) worm

B) limbless reptile

C) limbless amphibian

D) limbless mammal

• question_answer178) The following organism causes the African sleeping sickness:

A) Pammecium

B) Amoeba

C) Plasmodium

D) Trypanosoma

• question_answer179) The minimata disease of Japan was caused by:

B) mercury pollution

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

D) $S{{O}_{2}}$pollution

• question_answer180) Agar-agar which is used in tissue culture is obtained from a:

A) Fungi

B) Algae

C) Pteridophyta

D) Bryophyta