Solved papers for CET Karnataka Medical CET - Karnataka Medical Solved Paper-2001

done CET - Karnataka Medical Solved Paper-2001

• question_answer1) Two spherical black bodies of radii ${{r}_{1}}$and ${{r}_{2}}$ with surface temperature ${{T}_{1}}$and ${{T}_{2}}$respectively. Radiate the same power. Then the ratio of r1 and r2 will be:

A) ${{\left( \frac{{{T}_{2}}}{{{T}_{1}}} \right)}^{2}}$

B) ${{\left( \frac{{{T}_{2}}}{{{T}_{1}}} \right)}^{4}}$

C) ${{\left( \frac{{{T}_{1}}}{{{T}_{2}}} \right)}^{2}}$

D) ${{\left( \frac{{{T}_{1}}}{{{T}_{2}}} \right)}^{4}}$

• question_answer2) A source having frequency of 240 Hz is moving towards on observer with a speed of 20 m/s when the observer is moving towards the source with a velocity of 20 m/s. Then apparent frequency heard by the observer, if velocity of sound is 330 m/s, will be:

A) 268 Hz

B) 271 Hz

C) 368 Hz

D) 250 Hz

• question_answer3) In the circuit shown in figure neglecting source resistance the voltmeter and ammeter reading will respectively, will be: A) 0 V, 3 A

B) 150 V, 3A

C) 150 V, 6 A

D) 0 V, 8 A

• question_answer4) Three rods of same dimensions are arranged as shown in figure they have thermal conductivities ${{K}_{1}},\text{ }{{K}_{2}}$and ${{K}_{3}}.$The points P and Q are maintained a at different temperatures for the heat to flow at the same rate along PRQ and PQ: A) ${{K}_{3}}=\frac{1}{2}\left( {{K}_{1}}+{{K}_{2}} \right)$

B) ${{K}_{3}}={{K}_{1}}+{{K}_{2}}$

C) ${{K}_{3}}=\frac{{{K}_{1}}{{K}_{2}}}{{{K}_{1}}+{{K}_{2}}}$

D) ${{K}_{3}}=2\left( {{K}_{1}}+{{K}_{2}} \right)$

• question_answer5) PQRS is a square loop made of uniform conducting wire the current enters the loop at P and leaves at S. Then the magnetic field will be: A) maximum at the centre of the loop

B) zero at the centre of loop

C) zero at all points inside the loop

D) zero at all points outside of the loop

• question_answer6) If the velocity of sound in air is 336 m/s. The maximum length of a closed pipe that would produce a just audible sound will be:

A) 3.2 cm

B) 4.2 m

C) 4.2 cm

D) 3.2 m

• question_answer7) How will the image formed by a convex lens be affected, if the central portion of the lens is wrapped in black paper as shown in the figure: A) full image will be formed but without central portion

B) two image will be formed one due to each exposed half

C) full image will be formed but it is less bright

D) no image will be formed

• question_answer8) A ray of light is incident normally on one of the falls of a prism of angle 30? and refractive index$\sqrt{2}$. The angle of deviation will be:

A) $26{}^\circ$

B) $0{}^\circ$

C) $23{}^\circ$

D) $13{}^\circ$

• question_answer9) Translational kinetic energy of a gas molecule, for one mole of the gas, is equal to:

A) 2KT

B) $\frac{1}{2}$RT

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

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

• question_answer10) If the radius of earth is reduced by 2% keeping its mass constant. Then the weight of the body on its surface will:

A) increases

B) decreases

C) remain same

D) either or

• question_answer11) An ideal gas is taken around PQRP as shown in the figure of PV diagram. The work done during a cycle is: A) zero

B) $\frac{1}{2}$PV

C) PV

D) 2PV

• question_answer12) In an as trinomial telescope, the focal length of objective lens and eye piece are 150 cm and 6 cm respectively. In normal adjustment the magnifying power is:

A) 20

B) 30

C) 60

D) 15

• question_answer13) In an experiment with Kunds tube, the distance between consecutive nodes is 5 cm, when air is inside and it is 13.4 cm, when hydrogen is inside then the velocity of sound in hydrogen will be (velocity of sound in air = 330 m/s):

A) 884.4 m/s

B) 984.4 m/s

C) 1084.4 m/s

D) none of these

• question_answer14) A second harmonic has to be generated in a string of length I stretched between two rigid supports. The point where the string has to be plucked and touched are:

A) plucked at $\frac{l}{4}$ and touch at $\frac{l}{2}$

B) plucked at $\frac{l}{4}$and touch at $\frac{3l}{4}$

C) plucked at $\frac{l}{2}$ and touched at $\frac{l}{4}$

D) plucked at $\frac{l}{2}$ and touched at $\frac{3l}{2}$

• question_answer15) Five resistance are connected as shown in figure. The equivalent resistance between P and Q will be: A) $\frac{10}{3}\Omega$

B) $\frac{20}{3}\Omega$

C) $\frac{16}{2}\Omega$

D) none of these

• question_answer16) In a parallel plate capacitor of capacitance C, a metal sheet is inserted between the plates, parallel to them. If the thickness of the sheet is reduced to half of the separation between the plates. The capacitance will be:

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

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

C) 4 C

D) 2 C

• question_answer17) The forward voltage in a diode increased the width of the depletion region:

A) does not change

B) decreases

C) increases

D) none of these

• question_answer18) An electric bulb is designed to draw power P0 at voltage V0. If the voltage is V it draws a power P2. Then:

A) $P={{\left( \frac{{{V}_{0}}}{V} \right)}^{2}}{{P}_{0}}$

B) $P={{\left( \frac{V}{{{V}_{0}}} \right)}^{2}}{{P}_{0}}$

C) $P=\left( \frac{V}{{{V}_{0}}} \right){{P}_{0}}$

D) $P=\left( \frac{{{V}_{0}}}{V} \right){{P}_{0}}$

• question_answer19) A magnet dropped into a coil of conducting wire along its axis will fall with an acceleration:

A) more than g

B) equal to g

C) less than g

D) none of these

• question_answer20) The resistors of resistances 2$\Omega$, 4$\Omega$ and 8$\Omega$ are connected in parallel, then the equivalent resistance of the combination will be:

A) $\frac{8}{7}\Omega$

B) $\frac{7}{8}\Omega$

C) $\frac{7}{4}\Omega$

D) $\frac{4}{9}\Omega$

• question_answer21) A ball of mass 1g and charge 10-8 C moves from a point A. Where potential is 600 volt to the point B where potential is zero. Velocity of the ball at the point B is 20 cm/s. The velocity of the ball at the point A will be:

A) 22.8 cm/s

B) 228 cm/s

C) 16.8 m/s

D) 168 m/s

• question_answer22) A small object is placed 10 cm in front of a plane mirror. If you stand behind the object 30 cm from the mirror and look at its image, the distance focused for your eye will be:

A) 60 cm

B) 20 cm

C) 40 cm

D) 80 cm

• question_answer23) A milliammeter of range 10 mA has a coil of resistance 1$\Omega$. To use it as voltmeter of range 10 volt, the resistance that must be connected in series with it, will be:

A) 999 $\Omega$

B) 99 $\Omega$

C) 1000 $\Omega$

D) none of these

• question_answer24) While a capacitor remains connected to a battery and dielectric slab is applied between the plates, then:

A) potential difference between the plates is changed

B) charge flows from the battery to the capacitor

C) electric field between the plates increases

D) energy store in the capacitor decreases

• question_answer25) There are two electric bulbs of 40 volt and 60 watt. The ratio of their resistance will be:

A) 5 : 4

B) 4 : 3

C) 3 : 2

D) 2 : 3

• question_answer26) A charge q is placed at the centre of the line joining two equal charges Q. The system of there charges will be in equilibrium if q is equal to

A) $-\frac{Q}{4}$

B) $-\frac{Q}{2}$

C) $+\frac{Q}{2}$

D) $+\frac{Q}{4}$

• question_answer27) If a ball is thrown vertically upwards; assuming the air resistance to be constant and considerable, then:

A) time of ascent $\ge$ time of descent

B) time of ascent = time of descent

C) time of ascent < time of descent

D) time of ascent > time of descent

• question_answer28) The work function for aluminium is 4.125 eV. The cutoff wavelength for photoelectric effect for aluminium will be:

A) 420 nm

B) 350 nm

C) 300 nm

D) 200 nm

• question_answer29) A bus is moving with a velocity of 5 m/s towards a huge well. The driver sounds a horn of frequency 165 Hz. If the speed of sound in air is 355 m/s, the number of beats heard per second by a passenger on the bus will be:

A) 6

B) 5

C) 3

D) 4

• question_answer30) If the critical angle for total internal reflection from a medium to vacuum is $30{}^\circ$, then velocity of light in the medium is:

A) $1.5\times {{10}^{8}}m/s$

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

C) $0.75\text{ }m/s$

D) $6\times {{10}^{8}}m/s$

• question_answer31) In a stationary wave, all particles of the medium cross the mean position with:

A) different velocities at different instants

B) different velocities at same instants

C) same speed at all instants

D) different speed at all instants

• question_answer32) A cylinder of 5 litre capacity, filled with air at N.T.P. is connected with another evacuated cylinder of 30 litres of capacity the resultant air pressure in both the cylinders will be:

A) 38.85 cm of Hg

B) 21.85 cm of Hg

C) 10.85 cm of Hg

D) 14.85 cm of Hg

• question_answer33) As the intensity of incident light increases then:

A) K.E. of photoelectron decreases

B) K.E. of photoelectron increases

C) photoelectric current increases

D) photoelectric current decreases

• question_answer34) Which of- the following statement is not the true?

A) while taking reading of tangent galvanometer, the plane of the coil must be set at right angles to the earths magnetic meridian

B) a short magnet is used in a tangent galvanometer since a long magnet would be heavy and may not easily move

C) measurements with the tangent galvanometer will be more accurate, when the deflection is around 45?

D) a tangent galvanometer cannot be used in the polar region

• question_answer35) Pick out the statement which is not true:

A) shortest wavelength UV radiation are beneficial to living tissue while longer wavelength are harmful:

B) UV radiation have wavelength extending from 200 nm to 400 nm.

C) UV radiation are used for sterlisation of water

D) sun is natural source of UV radiation

• question_answer36) The relative permeability is represented by ${{\mu }_{r}}$and the susceptibility is denoted by % for a magnetic substance. Then for a paramagnetic substance:

A) ${{\mu }_{r}}<1,\chi <0$

B) ${{\mu }_{r}}<1,\chi >0$

C) ${{\mu }_{r}}>1,\chi <0$

D) ${{\mu }_{r}}>1,\chi >0$

• question_answer37) An electron moving in a circular orbit of radius r makes n rotation per second. The magnetic field produced at the centre has a magnitude of:

A) $\frac{{{\mu }_{0}}ne}{2r}$

B) $\frac{{{\mu }_{0}}{{n}^{2}}e}{2r}$

C) $\frac{{{\mu }_{0}}ne}{2\pi r}$

D) zero

• question_answer38) A train is moving towards north with a speed of 180 km/hr. If the vertical component of the earths magnetic field is $0.2\times {{10}^{-4}}$ the e. m. f. induced, in the axle 1-5 m long, is:

A) 1.5 mV

B) 15 mV

C) 5.4 mV

D) 54 mV

• question_answer39) When a ceiling fan is switched off its angular velocity radius 50% while its makes 36 rotations. How many more rotation will it make before coming to rest (Assume uniform angular retardation):

A) 18

B) 12

C) 36

D) 48

• question_answer40) During an adiabatic process the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio of ${{C}_{p}}/{{C}_{v}}$for the gas is:

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

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

C) 2

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

• question_answer41) Three fourth of the active nuclei present in a radioactive sample decay in 3/4 sec. The half life of the sample is:

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

B) 1 sec

C) $\frac{3}{8}$ sec

D) $\frac{3}{4}$sec

• question_answer42) A gas at the temperature 250 K is contained in a closed vessel. If the gas is heated through 1 K, then the percentage increase in its pressure will be:

A) 0.4%

B) 0.2%

C) 0.1%

D) 0.8%

• question_answer43) Transverse waves of same frequency are generated in two steel wires A and B. The diameter of A is twice of B and the tension in A is half that in B. The ratio of velocities of wave in A and B is:

A) 1 : 3$\sqrt{2}$

B) 1 : 2$\sqrt{2}$

C) 1 : 2

D) $\sqrt{2}$: 1

• question_answer44) A block of mass 1 kg slides down a rough inclined plane of inclination 60? starting from its top. If coefficient of kinetic friction is 0.5 and length of the plane d = 1 m then work done against friction is:

A) 2.45 J

B) 4.9 J

C) 9.8 J

D) 19.6 J

• question_answer45) A bar magnet of magnetic moment M is cut into two parts of equal length. The magnetic moment of each part will be

A) 12 M

B) M

C) 0.5 M

D) zero

• question_answer46) A body, thrown upwards with some velocity, reaches the maximum height of 20 m. Another body with double the mass thrown up, with double initial velocity will reach a maximum height of:

A) 200 m

B) 16 am

C) 80 m

D) 40 m

• question_answer47) A particle having charge 100 times that of an electron is revolving in a circular path of radius 0.8 m with one rotation per second. Magnetic field produced at the centre of particle will be:

A) 10-17${{\mu }_{0}}$

B) 10-11${{\mu }_{0}}$${{10}^{-11}}{{\mu }_{0}}$

C) ${{10}^{-7}}{{\mu }_{0}}$

D) ${{10}^{-3}}{{\mu }_{0}}$

• question_answer48) The resultant of two forces 3P and IP is R If the first force is doubled then the resultant is also doubled. The angle between the two forces is:

A) $60{}^\circ$

B) $120{}^\circ$

C) $70{}^\circ$

D) $180{}^\circ$

• question_answer49) In an n - p - n transistor circuit, the collector current is 10 mA. If 90% of the electrons emitted reach the collector, the emitter current IE and base current IB are given by:

A) ${{I}_{E}}=9mA,\,{{I}_{B}}=-1mA$

B) ${{I}_{E}}=-1mA,\text{ }{{I}_{B}}=9mA$

C) ${{I}_{E}}=1\text{ }mA,\text{ }{{I}_{B}}=11mA$

D) ${{I}_{E}}=11mA,\text{ }{{I}_{B}}=1mA$

• question_answer50) The energy of hydrogen atom in its ground state is -13.6 eV. The energy of the level corresponding to the quantum number n is equal 5 is:

A) -5.40 eV

B) -2.72 eV

C) -0.85 eV

D) -0.54 eV

• question_answer51) Which of the following relation is correct in magnetism?

A) ${{V}^{2}}=\text{ }I+H$

B) $V={{I}^{2}}+{{H}^{2}}$

C) $I=V+H$

D) ${{I}^{2}}={{V}^{2}}+{{H}^{2}}$

• question_answer52) Magnetic fields at two points on the axis of a circular coil at a distance of 0.05 m and 0.2 m from the centre are in the ratio 8:1. The radius of the coil is:

A) 1.0 m

B) 0.1 m

C) 0.15 m

D) 0.2 m

• question_answer53) A balloon starts rising from the ground with an acceleration of $1.25\text{ }m/{{s}^{2}}$after 8s, a stone is released from the balloon. The stone will$(g=10m/{{s}^{2}})$:

A) reach the ground in 4 second

B) begin to move down after being released

C) have a displacement of 50 m

D) cover a distance of 40 m in reaching the ground

• question_answer54) If a white light is used in Youngs double slit experiments then a very large number of colored fringes can be seen:

A) with first order violet fringes being closer to the central white fringes

B) first order red fringes being closer to the central white fringes

C) with a central white fringe

D) with a central black fringe

• question_answer55) In the experiment of diffraction at a single slit, if the slit width is decreased, the width of the central maximum:

A) decreases in Fresnels diffraction but increases in Fraun hofer diffraction

B) increases in Fresnels diffraction but decreases in Fraun hofer diffraction

C) decreases in both Fresnel and Fraun hofer diffraction

D) increases in both Fresnel and Fraun hofer diffraction

• question_answer56) A satellite with kinetic energy ${{E}_{k}}$is revolving round the earth in a circular orbit. How much more kinetic energy should be given to it so that it may just escape into outer space.

A) ${{E}_{k}}$

B) $2{{E}_{k}}$

C) $\frac{1}{2}{{E}_{k}}$

D) $3{{E}_{k}}$

• question_answer57) The ionisation potential of hydrogen is 13.6 eV. Then the energy released when an electron jumps from n = 3 to n = 2 orbit, is:

A) 2.89 eV

B) 1.89 eV

C) 3.89 eV

D) 4.89 eV

• question_answer58) In an X-ray tube electrons bombarding the target produce X-rays of minimum wavelength 1 A. What must be the energy of bombarding electrons:

A) 13375 eV

B) 12375 eV

C) 14375 eV

D) 15375 eV

• question_answer59) Two progressive wave are represented by the following equations: $y1=5\sin 2\pi \left( 10t-0.1x \right)$ $y2=10\sin 2\pi \left( 20t-0.2x \right)$ The ratio of intensities will be:

A) 1 : 16

B) 1 : 4

C) 1 : 2

D) 1 : 1

• question_answer60) The frequency of a tuning fork is 384 per second and velocity of sound in air is 352 m/s. How far the sound has traversed while fork completes 36 vibration?

A) 3 m

B) 13 m

C) 23 m

D) 33 m

• question_answer61) At what temperature will the RMS velocity of $S{{O}_{2}}$ be the same as that of ${{O}_{2}}$ at 303 K?

A) $403K$

B) $303K$

C) $606\text{ }K$

D) $273K$

• question_answer62) Phenol is treated with .bromine water and shaken well. The white precipitate formed during the process is:

A) m-bromophenol

B) 2, 4, 6 tribromophenol

C) 2-4 dibromophenol

D) a mixture of o-and p-bromophenols

• question_answer63) In thermite process the metal-used as reducing agent is:

A) nickel

B) zinc

C) sodium

D) aluminium

• question_answer64) Which of the following compounds on boiling with alkaline $KMn{{O}_{4}}$ and subsequent acidification will not give benzoic acid?

A) benzyl alcohol

B) acetophenone

C) anisole

D) toluene

• question_answer65) The base present in DNA, but not in RNA is:

A) guanine

C) uracil

D) thymine

• question_answer66) The total number of lattice arrangements in different crystal system is:

A) $7$

B) $3$

C) $8$

D) $14$

• question_answer67) The conversion of A to B follows second order kinetics. Doubling the concentration of A will increase the rate of formation of B by a factor of:

A) $4$

B) $2$

C) $1/4$

D) $1/2$

• question_answer68) $R-COO{{R}^{1}}+{{H}_{2}}O\xrightarrow{HCl}$ $R-COOH+{{R}^{1}}OH.$ What type of reaction is this?

A) second order

B) unimolecular

C) pseudo-unimolecular

D) third order

• question_answer69) The unit of quantity of electricity is:

A) ohm

B) ampere

C) coulomb

D) volt

• question_answer70) $_{p}{{K}_{a}}$ values of two acids A and B are 4 and 5. The strengths of these two acids are related as:

A) acid A is 10 times stronger than acid B

B) strength of acid A : strengths of acid $B=4:5$

C) the strengths of the two acids can not be compared

D) acid B is 10 times stronger than acid A

• question_answer71) $10\text{ }d{{m}^{3}}$of ${{N}_{2}}$gas and $10\text{ }d{{m}^{3}}$of gas X at the same temperature and pressure contain the same number of molecules. The gas X is:

A) $NO$

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

C) $C{{O}_{2}}$ or $Co$

D) all of these

• question_answer72) When the electrons of hydrogen atoms return to L shell from shells of higher energy, we get a series of lines in the spectrum. This series is called

A) Balmer series

B) Lyman series

C) Bracket! series

D) Paschen series

• question_answer73) The alcohol obtained by the hydrolysis of oils and fats is:

A) glycol

B) glycerol

C) propanol

D) pentanol

• question_answer74) Which of the following alloys is used for making magnets for hearing aids?

A) alnico

B) german silver

C) invar

D) monel metal

• question_answer75) One $d{{m}^{3}}$of 2M ethanoic acid is mixed with one $d{{m}^{3}}$ of 3M ethanol to form an ester $C{{H}_{3}}COOH+{{C}_{2}}{{H}_{5}}OH\xrightarrow{{}}$ $C{{H}_{3}}COO{{C}_{2}}{{H}_{5}}+{{H}_{2}}O$ The decrease in the initial rate if each solution is diluted with an equal volume of water would be:

A) 2 times

B) 4 times

C) $0.25$times

D) $0.5$ times

• question_answer76) Which one of the following can be classified as a Bronstead base?

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

B) ${{H}_{3}}{{O}^{+}}$

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

D) $NH_{4}^{+}$

• question_answer77) pH of a solution produced when an aqueous solution of pH 6 is mixed with an equal volume of an aqueous solution of pH 3 is about:

A) $3.3$

B) $4.3$

C) $4.0$

D) $4.5$

• question_answer78) Aluminium displaces hydrogen from acids, but copper does not. A Galvanic cell prepared by combining $Cu/C{{u}^{2+}}$and $Al/A{{l}^{3+}}$ has an emf of $2.0V$at 298 K. If the potential of copper electrode is $+0.34V$, that of aluminium electrode is:

A) $-2.3V$

B) $+2.34V$

C) $-1.66V$

D) $+1.66V$

• question_answer79) $1.5$ moles of ${{O}_{2}}$ combine with $Mg$ to form the oxide $MgO$. The mass of $Mg$that has combined is $(Mg=24)$:

A) $72g$

B) $36g$

C) $48g$

D) $24g$

• question_answer80) How much of $NaOH$ is required to neutralise $1500c{{m}^{3}}$ of$0.1NHC1$? $(Na=23)$:

A) $60g$

B) $6g$

C) $4g$

D) $40g$

• question_answer81) The boiling point of water is exceptionally high because:

A) water molecule is not linear

B) water molecule is linear

C) there is covalent bond between H and O

D) water molecules associate due to hydrogen bonding

• question_answer82) ${{P}_{4}}{{O}_{10}}$is not used with to dry $N{{H}_{3}}$ gas because:

A) ${{P}_{4}}{{O}_{10}}$is basic and $N{{H}_{3}}$ is acidic

B) ${{P}_{4}}{{O}_{10}}$ is acidic and $N{{H}_{3}}$ is basic

C) ${{P}_{4}}{{O}_{10}}$ is not a drying agent

D) ${{P}_{4}}{{O}_{10}}$ reacts with moisture in $N{{H}_{3}}$

• question_answer83) A radioactive isotope has a half-life of 10 years. What percentage of the original amount of it remain after 20 years:

A) $0$

B) $12.5$

C) $8$

D) $25$

• question_answer84) 75% of a first order reaction is completed in 30 minutes. What is the time required for 93-75% of the reaction (in minutes)?

A) $45$

B) $120$

C) $90$

D) $60$

• question_answer85) Excess of $N{{a}^{+}}$ ions in our system causes:

A) high B.P.

B) low B.P.

C) diabetes

D) anaemia

• question_answer86) Alcoholic potash is used to bring about:

A) dehydrogenation

B) dehydration

C) dehydrohalogenation

D) dehalogenation

• question_answer87) Which of the following organic compounds answers both iodoform test and Fehlings test?

A) methanal

B) ethanol

C) propane

D) ethanol

• question_answer88) Gold sol is an electronegative sol. The amount of electrolyte required to coagulate a certain amount of gold sol is minimum in the case of:

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

B) $NaCl$

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

D) $N{{a}_{2}}S{{O}_{4}}$

• question_answer89) The oxidation number and the electronic configuration of sulphur in ${{H}_{2}}S{{O}_{4}}$ is:

A) $+4;1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}$

B) $+2;1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{2}}$

C) $+3;1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{1}}$

D) $+6;1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}$

• question_answer90) The mass of $112c{{m}^{3}}$of $C{{H}_{4}}$ gas at STP is:

A) $0.16\text{ }g$

B) $0.8\text{ }g$

C) $0.08g$

D) $1.6g$

• question_answer91) The volume of water to be added to $100c{{m}^{3}}$of $0.5\text{ }N\text{ }{{H}_{2}}S{{O}_{4}}$ to get decinormal concentration is:

A) $400c{{m}^{3}}$

B) $500c{{m}^{3}}$

C) $450c{{m}^{3}}$

D) $100c{{m}^{3}}$

• question_answer92) In which of the following equilibrium systems is the rate of the backward reaction favoured by increase of pressure?

A) $PC{{l}_{5}}\rightleftharpoons PC{{l}_{3}}+C{{l}_{2}}$

B) $2S{{O}_{2}}+{{O}_{2}}\rightleftharpoons 2S{{O}_{3}}$

C) ${{N}_{2}}+3{{H}_{2}}\rightleftharpoons 2N{{H}_{3}}$

D) ${{N}_{2}}+{{O}_{2}}\rightleftharpoons 2NO$

• question_answer93) In order to decompose 9g water $142.5\text{ }kJ$heat is required. Hence the enthalpy of formation of water is:

A) $-142.5\text{ }kJ$

B) $+142.5\text{ }kJ$

C) $-285kJ$

D) $+285kJ$

• question_answer94) A quantity of $PC{{l}_{5}}$ was heated in a 10 $d{{m}^{3}}$vessel at ${{250}^{o}}C$ $PC{{l}_{5}}(g)\rightleftharpoons PC{{l}_{3}}(g)+C{{l}_{2}}(g)$ At equilibrium the vessel contains $0.1$mole of $PC{{l}_{5}}$ and $0.2$ mole of $C{{l}_{2}}$. The equilibrium constant of the reaction is:

A) $0.05$

B) $0.02$

C) $0.025$

D) $0.04$

• question_answer95) Which among the following species has the highest ionisation potential?

A) $B$

B) $Li$

C) $Ne$

D) $F$

• question_answer96) Which one of the following metallic hydroxides does not dissolve in sodium hydroxide solution?

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

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

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

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

• question_answer97) IUPAC name of ${{K}_{3}}Fe{{(CN)}_{6}}$ is:

A) potassium ferricyanide

B) hexacyano ferrate (III).

C) potassium hexacyano ferrate (III)

D) potassium hexacyano ferrate (II)

• question_answer98) Unpleasant smell of carbylamine is obtained when chloroform and alcoholic $KOH$ are heated with:

A) any aliphatic amine

B) any amine

C) any primary amine

D) any aromatic amine

• question_answer99) Which of the following is an aldohexose?

A) cellulose

B) sucrose

C) glucose

D) raffinose

• question_answer100) When a mixture of calcium acetate and calcium formate is dry distilled, the product formed as:

A) ethanal

B) butanone

C) methanal

D) acetophenone

• question_answer101) The test used for identifying peptide linkage in proteins is:

A) Borsches test

B) Molischs test

C) Ninhydrin test

D) Biuret test

• question_answer102) Which of the following is not used to distinguish ethene from ethane?

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

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

C) alkaline $KMn{{O}_{4}}$

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

• question_answer103) To get a n-type doped semiconductor, impurity to be added to silicon should have the following number of valence electrons :

A) $1$

B) $3$

C) $5$

D) $2$

• question_answer104) For the equilibrium ${{N}_{2}}(g)+3{{H}_{2}}(g)\rightleftharpoons 2N{{H}_{3}}(g)$ The equilibrium constant, ${{K}_{p}}$ is equal to:

A) ${{K}_{c}}={{(RT)}^{2}}$

B) ${{K}_{c}}(RT)$

C) $\frac{{{K}_{c}}}{{{(RT)}^{2}}}$

D) ${{K}_{c}}$

• question_answer105) 5 moles of $S{{O}_{2}}$ and 5 moles of ${{O}_{2}}$ are allowed to react to form $S{{O}_{3}}$ in a closed vessel. At the equilibrium stage 60% of $S{{O}_{2}}$ is used up. The total number of moles of $S{{O}_{2}},{{O}_{2}}$ and $S{{O}_{3}}$ in the vessel now is:

A) $10.0$

B) $8.5$

C) $10.5$

D) $3.9$

• question_answer106) For a given reaction ${{t}_{1/2}}=\frac{1}{Ka}$The order of the reaction is:

A) $1$

B) $0$

C) $3$

D) $2$

• question_answer107) In the case of small cuts, bleeding is stopped by applying potash alum. Here alum acts as:

A) fungicide

B) disinfectant

C) germicide

D) coagulating agent

• question_answer108) For the reaction ${{H}_{2}}O(s)\rightleftharpoons {{H}_{2}}O(l)$ at ${{0}^{o}}C$and normal pressure:

A) $\Delta H>T\Delta S$

B) $\Delta H=T\Delta S$

C) $\Delta H=\Delta G$

D) $\Delta H<T\Delta S$

• question_answer109) When salicylic acid is distilled with zinc dust, the product obtained is :

A) zinc salicylate

B) salicylaldehyde

C) phenol

D) benzoic acid

• question_answer110) The percentage of ${{N}_{2}}$ in urea is about:

A) $28$

B) $18$

C) $85$

D) $46$

• question_answer111) On heating ethanol with excess of cone. ${{H}_{2}}S{{O}_{4}}$ at${{170}^{o}}C$, the product obtained is:

A) ethene

B) ethoxy ethane

C) ethyne

D) ethane

• question_answer112) To calculate the amount of work done in joules during reversible isothermal expansion of an ideal gas, the volume must be expressed in:

A) $d{{m}^{3}}$only

B) ${{m}^{3}}$ only

C) any unit

D) $c{{m}^{3}}$ unit

• question_answer113) The quantity of electricity required to liberate $112c{{m}^{3}}$of hydrogen at STP from acidified water is:

A) 965 Coulombs

D) 96500 Coulombs

• question_answer114) Hydrogen ion concentration of an aqueous solution is $1\times {{10}^{-4}}M$. The solution is diluted with equal volume of water. Hydroxyl ion concentration of the resultant solution in terms of mol $d{{m}^{-3}}$ is:

A) $1\times {{10}^{-8}}$

B) $1\times {{10}^{-6}}$

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

D) $0.5\times {{10}^{-10}}$

• question_answer115) The shape of cup ammonium ion is:

A) trigonal

B) tetrahedral

C) octahedral

D) square planar

• question_answer116) The enthalpy of combustion of ${{C}_{6}}{{H}_{6}}(l)$is $-3250kJ$. When $0.39g$of benzene is burnt in excess of oxygen in an open vessel, the amount of heat liberated is:

A) $16.25J$

B) $16.25kJ$

C) $32.5J$

D) $32.5kJ$

• question_answer117) In an adiabatic expansion of an ideal gas:

A) $W=-\Delta E$

B) $W=\Delta E$

C) $\Delta E=0$

D) $W=0$

• question_answer118) The solubility product of a binary weak electrolyte is $4\times {{10}^{-10}}$at$298K$. Its solubility in $mol\text{ }d{{m}^{-3}}$at the same temperature is:

A) $4\times {{10}^{-5}}$

B) $2\times {{10}^{-5}}$

C) $8\times {{10}^{-10}}$

D) $16\times {{10}^{-20}}$

• question_answer119) Propane is the product obtained by dehydrogenation of:

A) 2-propanol

B) 1-propanol

C) propanal

D) n-propyl alcohol

• question_answer120) To get DDT chlorobenzene has to react with the following compound in the pressure of concentrated sulphuric acid :

A) trichloro ethane

B) dichloro acetone

C) dichloro acetaldehyde

D) trichloro acetaldehyde

• question_answer121) Vaccination against small pox was developed by:

A) Louis Pasteur

B) Edward Jenner

C) Robert Koch

D) Alexander Flemming

• question_answer122) The value of human diastolic blood pressure is:

A) 120-80 =40 mm. Hg

B) 120 mm. Hg

C) 80 mm. Hg

D) 128/80 mm. Hg

• question_answer123) Balance theory of sex determination holds good for:

A) Allium cepa

B) Drosophila

C) Humans

D) Grasshoppers

• question_answer124) The plants respond to photo-periods due to the presence of:

A) Phytochromes

B) Stomata

C) Enzymes

D) Phytohormones

• question_answer125) Identify the edible fresh-water telesots:

A) Sharks

B) Rays and Skates

C) Hilsa ilisha

D) Catia catia

• question_answer126) Plasmids occur in:

A) viruses

B) chromosomes

C) bacteria

D) chloroplasts

• question_answer127) Match the names of antibiotics listed under Column I with their source given under Column II; choose the correct combination .of alphabets of the two columns:

 Column-I (Antibiotics) Column-II (Source) A Neomycin p Streptomyces fradiae B Terramycin q Penicillin notatum C Viridin r Streptomyces rimosus D Penicillium s Gliocladium wrens

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

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

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

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

• question_answer128) The bond formed between the first phosphate group and adenosine in ATP is:

A) nitro-phosphate bond

C) phosphoester bond

D) phosphoanhydride bond

• question_answer129) The Protists have:

A) gene containing nucleo-proteins condensed together in loose mass

B) nucleo-protein in direct contact with the nest of the cell substance

C) only tree nucleic acid aggregates

D) membrane bound nucleo-proteins lying embedded in the cytoplasm

• question_answer130) Antrum is the cavity of:

A) gastrula

B) graffian follicle

C) ovary

D) blastula

• question_answer131) Which of the following statements is wrong?

A) Endospores are produced in pteridophyta

B) Naked seeds are seen in gymnosperms

C) Capsule is present in the sporophyte of bryophyta

D) Basidiocarp is the fruiting body of fungus

• question_answer132) The pioneers in the field of organic evolution are:

A) Darwin, Hugo de Vries, Lamarck, Huxley

B) Karl Landsteiner, Hugo de Vries, Malthus, Darwin

C) Lamarck, Karl Landsteiner, Malthus, De Vries

D) Darwin, Lamarck, Karl Landsteiner, De Vries

• question_answer133) This one is the characteristic of epithelial tissues:

A) these cells never produce glands.

B) the cells have a rapid rate of cell division

C) tissues are highly vascularised

D) large intercellular spaces are seen between the cells

• question_answer134) Great Indian Bustard sanctuary is located in:

A) Rajasthan

B) Maharashtra

C) Pakistan

• question_answer135) The result of ozone hole is:

A) acid rain

B) global warming

C) the UV radiations reach the earth

D) green-house effect

• question_answer136) This is not cells of areolar tissue:

A) Macrophages

B) Schwann cell

C) Plasma cell

• question_answer137) The pH of stomach range between:

A) 7.1 - 8-2

B) 7-6 - 8-6

C) 1-5-2-0

D) 6.8-7-2

• question_answer138) Match the names of the experiments listed under Column I with the aim of the experiment given under Column II; choose the answer which gives the correct combination of the alphabets:

 Column-I (Experiment) Column-II (Aim) A Gridling experiment P Ascent of sap B Cobalt chloride paper method q Transpiration C Crescograph r Unequal transpiration on leaf surfaces D Bell jar experiment s Translocation

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

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

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

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

• question_answer139) Number of endangered species of angiosperms in India is:

A) 15,000

B) 500

C) 3,000

D) None of these

• question_answer140) Transduction in bacteria is mediated by:

A) Cosmids

B) F - factors

C) Plasmid vectors

D) Phage vectors

• question_answer141) Match the common names of diseases listed under Column I unit their medical terms listed under Column II; choose the answer which gives the correct combination of the alphabets of the two columns:

 Column-I (Common names) Column-II (Medical terms) A Blood clotting in small capillaries p Rhinitis B Value defects q Stenosis C Hay fever r Parkinsons disease D Paralysis s Coronany thrombosis

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

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

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

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

• question_answer142) The cell wall of bacteria is composed of:

A) murein

B) chirm

C) cellulose

D) suberin

• question_answer143) The phenomenon, in which an allele of one gene suppresses the activity of an allele of another gene, is known as:

A) Suppression

B) Inactivation

C) Epistasis

D) Dominance

• question_answer144) Which of the following is the aim of Mohls half-leaf experiment?

A) To show that carbon-dioxide is produced during anaerobic reactions

B) To show that carbon-dioxide is produced during aerobic reactions

C) To show the importance of carbon-dioxide for photosynthesis

D) To show chlorophyll is necessary for photosynthesis

• question_answer145) This is not produced by E. coli in the lactose rnedium:

A) lactose dehydrogenase

B) thiogalactoside transacetylase

C) $\beta$ -galactosidase

D) lactose permease

• question_answer146) Match the locomotory organs given under Column I with the phylum in which they are seen, listed under Column II; choose the answer which gives the correct combination of the alphabets of the two columns:

 Column-I (Locomotory organs) Column-II (Phylum) A Pseudopdia p Mollusca B Parapodia q Chondriehthyes (Pisces) C Muscular foot r Protozoa D Fins s Annelida

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

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

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

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

• question_answer147) The larve of Bombyx mori is:

A) cocon

B) nymph

C) caterpillar

D) trochophor

• question_answer148) The first stable intermediate product of photosynthesis in C4 plant is:

A) Phospho- glyceric acid

B) Ribulose 1, 5-biphosphate

C) PGAL

D) Oxaloacetate

• question_answer149) The lytic enzymes released by sperm is:

A) acrosome

B) ligase

C) androgamone

D) hyaluronidase

• question_answer150) An example for the enucleated living plant cell is:

A) xylem parenchyma

B) RBCs

C) sieve tubes of phloem

D) companion cells of phloem

• question_answer151) The example for polypetalous, zygomorphic corlla is:

A) Ocimum

B) Crotalaria

C) Rose

D) Mustard

• question_answer152) Identify the correct sequence of taxa in Linnaen hierarchy:

A) species, genus, family, order, class

B) class, family, species, genus, order

C) species, genus, phylum, family, class

D) phylum, class, family, species, order

• question_answer153) Match the biological molecules listed under Column I with their Biological functions listed under Column II; choose the choice which gives correct combination of alphabets of the two columns:

 Column-I (Biological molecules) Column-II (Function) A Glycogen p Hormone B Globulin q Bicatalyst C Steroids r Antibody D Thrombin s Storage product

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

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

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

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

• question_answer154) This one is a viral disease in silk worm:

A) Flacherie

B) Grasserie

C) Muscardine

D) Pebrine

• question_answer155) In the diagram of the portion of the TS of Helianthns leaf passing through the midrib given below, certain parts have been indicated by alphabets, choose the answer in which these alphabets have been correctly matched with the parts which they indicate: A) A = Epidermis, B = Spongy parenchyma, C = Palisade parenchyma, D = Stomata, E = Guard cells, F = Phloem.

B) A = Epidermis, B = Palisade parenchyma, C = Spongy parenchyma, D = Sub- stomatal cavity, E = Guard cells, F = Phloem, G = Metaxylem, H = Protoxylem.

C) A = Epidermis, B = Palisade parenchyma, C = Spongy parenchyma, D = Stomata, E = Guard cells, F = Endodermis, G = Xylem, H = Phloem.

D) A = Epidermis, B = Palisade parenchyma, C = Spongy parenchyma, D = Stomata, E = Guard cells.

• question_answer156) This is an insectivorous plant:

A) Opuntia

B) Eichhomia

C) Utriciilaria

D) Crotalaria

• question_answer157) Corpus callosum is seen in:

A) the pituitary

B) the ovary

C) the brain

D) the corpus luteum

• question_answer158) Anemophily means:

A) pollination by birds

B) pollination by wind

C) animal loving plants

D) pollination by animals

• question_answer159) The order Insectivora comes under:

A) class Mammalia

B) class Insecta

C) phylum Echinodermata

D) phylum Arthropoda

• question_answer160) An example of obligate anaerobe is:

A) Aspergillus sp.

B) Clostridium

C) Penicillium notatum

D) HIV

• question_answer161) Transfer of genes from one gene pool to another is called:

A) Speciation

B) Genetic drift

C) Gene flow

D) Mutation

• question_answer162) Match the names of glands 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 (Glands) Column-II (Location) A Crypts of liberkuhn p Loop of duodenum B Pancreas q Stomach C Adrenal glands r Intestine D Gastric glands s Kidney

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

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

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

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

• question_answer163) This is a method of birth-control:

A) IUDs

C) HTF

D) IVE- ET

• question_answer164) Swan-necked flask experiment was done by:

A) Aristotle

B) Francisco Redi

C) Louis Pasteur

D) Robert Koch

• question_answer165) In the diagram of the section of bone tissue given below, certain parts have been indicatd by alphabets, choose the answer in which these alphabets have been correctly matched with the parts which they indicate. A) A = Interstitial lamellae, B = Laemae with osteocytes, C = Blood vessels, D = Nerve, E = Canaliculi, F = Haversian canal, G = Lamellae.

B) A = Interstitial lamellae, B = Osteocytes in the laemae, C = Blood vessels, D = Nerve, E = Lamellae,

C) A = Interstitial lamellae, B = Osteocytes, C = Nerve, D = Blood vessels, E = Canaliculi, F = Haversian system, G = Lamellae.

D) A = Interstitial lamellae, B = Laemae with osteocytes, C = Blood vessels, D = Nerve, E = Canaliculi, F = Haversian canal, G = Lamellae.

• question_answer166) This is not an electron transferring molecule:

A) Co-enzyme

B) Fe-s protein

C) ATP

D) $NA{{D}^{+}}$

• question_answer167) A sudden change from. anaerobic to aerobic process is called:

A) Blackmans law

B) Emersons effect

C) Chargaff rule

D) Pasteur effect

• question_answer168) This is an inverted pyramid:

A) Pyramid of energy in a pond ecosystem.

B) Pyramid of numbers in a grassland ecosystem

C) Pyramid of biomass in a pond ecosystem

D) Pyramid of biomass in a grassland ecosystem

• question_answer169) Duramen is:

A) periderm

B) bark

C) sapwood

D) heart wood

• question_answer170) MOET is a method of:

A) fish cultivation

B) birth control in humans

C) cloning in sheep

D) hybridization in catties

• question_answer171) The spark-discharge apparatus to test chemical evolution of life was designed by:

A) Oparin and Haldane

B) Urey and Miller

C) Jacob and Monad

D) Dixon and Jolly

• question_answer172) Which one of the following is not a component of Lac-Operon model?

A) Promoter gene

B) Structural gene

C) Primer gene

D) Regulator gene

• question_answer173) Paurometaboly is:

A) complete metabolism

B) anabolism

C) incomplete metamorphosis

D) catabolism

• question_answer174) The best milch breed in the world is:

A) Chittagong

B) Deoni

C) Holsten-Friesian

D) Sindhi

• question_answer175) In the monocot root we observe:

A) exodermis, endarch, tetrach closed bundles

B) conjoint, collateral, open polyarch vascular bundle

C) suberized exodermis, polyarch xylem, pith

D) suberized exodermis, casparian strip, passage cells, cambium

• question_answer176) The plant cell differs from the animal cell in:

A) the presence of lysosomes

B) the presence of large vacuole

C) the absence of cellulosic cell wall

D) the absence of chloroplast

• question_answer177) The term Biocoenosis is coined by:

A) Charles Darwin

B) Karl Mobius

C) Earnst Haeckel

D) E. P. Odum

• question_answer178) Epicanthus is the symptom of:

A) haploidy

B) heteroploidy

C) Turners syndrome

D) Downs syndrome

• question_answer179) The possible blood groups of the off- springs of the parents with blood group 0 and AB:

A) A, B and AB

B) O, A, B and AB

C) O and AB

D) A and B

• question_answer180) Match the names of branches of biology listed under Column I with the field of study given under column II; choose the answer which gives the correct combination of alphabets of the two columns:

 Column-I (Branch of science) Column-II (Field of study) A Palynology p Silk worms B Oncology q Pollens C Phycology r Cancer D Sericulture s Algae

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

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

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

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

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