# Solved papers for JIPMER Jipmer Medical Solved Paper-1999

### done Jipmer Medical Solved Paper-1999

• question_answer1) A bullet of mass 50 g is fired from a 5 kg gun with a velocity of 1 km/sec. The speed of recoil of the gun is:

A) 5 m/s

B) 1 m/s

C) 0.5 m/s

D) 10 m/s

• question_answer2) If a parallel beam of white light is incident on a converging lens, the colour which is brought to focus nearest to the lens is:

A) violet

B) red

C) the mean colour

D) all the colours

• question_answer3) A bulb rated at (100 W - 200 V) is used on a 100 V line. The current in the bulb is:

A) $\frac{1}{4}$ amp

B) 4 amp

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

D) 2 amp

• question_answer4) A lens of focal power 0.5 dioptre is:

A) a convex lens of focal length 0.5 in

B) a concave lens of focal length 0.5 m

C) a convex lens of foc.il length 2 m

D) a concave lens of focal length 2 m

• question_answer5) A simple pendulum is set into vibrations. The bob of the pendulum comes to rest after sometime due to:

A) air friction

B) mass of inertia

C) weight of the bob

D) combination of all the above

• question_answer6) When the wavelength of light coming from a distant star is measured it is found shifted towards red. Then the conclusion is:

A) the star is approaching the observer

B) the star recedes away from earth

C) data incomplete

D) none of these

• question_answer7) The critical angle for glass-water boundary is C. If ${{\mu }_{g}}=1.5$ 1.5 and ${{\mu }_{\omega }}=\frac{4}{3}$ then the value of C is:

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

B) ${{\sin }^{-1}}\left( \frac{4}{3} \right)$

C) ${{\sin }^{-1}}\left( \frac{8}{9} \right)$

D) ${{\sin }^{-1}}\left( \frac{1}{2} \right)$

• question_answer8) Hot water kept in a beaker placed in a room cools from $70{}^\circ C$ to $60{}^\circ C$ in 4 minutes. The time taken by it to cool from$69{}^\circ C$ to$~59{}^\circ C$ will be:

A) the same 4 minutes

B) more than 4 minutes

C) less than 4 minutes

D) we cannot say definitely

• question_answer9) The ammeter A reads 2 A and the voltmeter V reads 20 V. The value of resistance R is:

A) exactly 10 ohm

B) less than 10 ohm

C) more than 10 ohm

D) we cannot definitely say

• question_answer10) A wire of resistance 12 ohm is in the form of a circle. The resistance between the ends of a diameter is :

A) 12 ohm

B) 6 ohm

C) 3 ohm

D) 1.2 ohm

• question_answer11) There are two liquid drops of different radii. The excess pressure inside over the outside is:

A) more in the big drop

B) more in the small drop

C) equal in both drops

D) there is no excess pressure inside the drops

• question_answer12) Two spheres made of same substance have diameters in the ratio 1 : 2. Their thermal capacities are in the ratio of:

A) 1 : 2

B) 1 : 8

C) 1 : 4

D) 2 : 1

• question_answer13) A photocell stops emission if it is maintained at 2 V positive potential. The energy of most energetic photoelectron is:

A) 2 eV

B) 2 J

C) 2 kJ

D) 2 keV

• question_answer14) Two identical wires have the same fundamental frequency of 400 Hz, when kept under the same tension. V the tension in one wire is increased by 2% the number of brats produced will be:

A) 4

B) 2

C) 8

D) 1

• question_answer15) A 10kg body hangs at rest from a rope wrapped around a cylinder of 0.2 m in diameter. The torque applied about the horizontal axis of the cylinder is:

A) 98 Nm

B) 19.6 Nm

C) 196 Nm

D) 9.8 Nm

• question_answer16) A force of 5 N acts on a 15 kg body initially at rest. The work done by the force during the first second of motion of the body is:

A) 5 J

B) $\frac{5}{4}$J

C) 6 J

D) 75 J

• question_answer17) The refractive index of the material of the prism for violet colour is 1.69 and that for red is 1.65. If the refractive index for mean colour is 1.66 the dispersive power of the material of the prism:

A) 0.66

B) 0.06

C) 0.65

D) 0.69

• question_answer18) A proton is accelerated through 50000 V. Its energy will increase by:

A) 5000 eV

B) $8\times {{10}^{-15}}$

C) 5000 J

D) 50000 J

• question_answer19) A ball thrown by a boy is caught by another after 2 sec. Some distance away in the same level. If the angle of projection is $30{}^\circ ,$ the velocity of projection is:

A) 19.6 m/s

B) 9.8 m/s

C) 14.7 m/s

D) the data given is not sufficient to calculate the velocity

• question_answer20) An unbanked curve has a radius of 60 m, The maximum speed at which a car can make a turn if the coefficient of static friction is 0.75 is:

A) 2.5 m/s

B) 14 m/s

C) 21 m/s

D) 7 m/s

• question_answer21) A body takes just twice as long to slide down a plane inclined at $30{}^\circ ,$ to the horizontal as if the plane were frictionless, The coefficient of friction between the body and the plane is:

A) $\frac{\sqrt{3}}{4}$

B) $\sqrt{3}$

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

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

• question_answer22) A man sitting in a moving train hears the whistle of the engine. The frequency of the whistle is 600 Hz:

A) the apparent frequency as heard by him is smaller than 600 Hz

B) the apparent frequency if larger than 600 Hz

C) the frequency as heard by him is 600 Hz

D) none of the above

• question_answer23) Which of the following phenomena suggests the presence of electron energy levels in atoms?

B) isotopes

C) spectral lines

D) $\alpha$-particles scattering

• question_answer24) The radius of the nucleus of an atom is about ${{10}^{-15}}m$ and the radius of the observable universe is about ${{10}^{23}}\,km$. The ratio of these quantities is:

A) $1:{{10}^{41}}$

B) 15 :23

C) 1: 38

D) $1:{{10}^{38}}$

• question_answer25) The quantity of heat required to raise one mole through one degree kelvin for a monoatomic gas at constant volume is:

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

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

C) $\frac{7}{1}R$

D) $4R$

• question_answer26) Two condensers having capacities $6\mu F$ and $3\mu F$ are connected in parallel. The resultant capacity of the combination is:

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

B) $3\mu F$

C) $2\mu F$

D) $9\mu F$

• question_answer27) The angle of dip at a place is $40.6{}^\circ$ and the intensity of the vertical component of earths magnetic field $V=6\times {{10}^{-5}}$ tesla. The total intensity of the earths magnetic field $I$ at this place is :

A) $7\times {{10}^{-5}}$ tesla

B) $6\times {{10}^{-5}}$ tesla

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

D) $9.2\times {{10}^{-5}}$ tesla

• question_answer28) At atmospheric pressure, the water boils at $100{}^\circ C$. If pressure is reduced, it will boil at :

A) higher temperature

B) minimum temperature

C) at critical temperature

D) at the same temperature

• question_answer29) The ratio of moments of an electron and $\alpha$-particle which are accelerated from rest by a potential difference of 100 V will be:

A) 1

B) $\sqrt{\frac{2{{m}_{e}}}{{{m}^{a}}}}$

C) $\sqrt{\frac{{{m}_{e}}}{{{m}_{\alpha }}}}$

D) $\sqrt{\frac{{{m}_{e}}}{2{{m}_{\alpha }}}}$

• question_answer30) If for a given angle of projection, the horizontal range is doubled, the time of flight becomes:

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

B) $\sqrt{2}$ times

C) 2 times

D) 4 times

• question_answer31) Two simple pendulum of lengths in the ratio 9 : 1 are started at time t = 0. They will again be in phase. After shorter pendulum has made n oscillation, where n is:

A) 2

B) 1

C) 1/2

D) 3/2

• question_answer32) The ratio of $rms$ speed of hydrogen molecules to that of oxygen molecules at a given temperature will be:

A) 1 : 16

B) 1 : 4

C) 4 : 1

D) 16 : 1

• question_answer33) A stretched wire is divided into three segments whose frequencies are in the ratio 2 : 3 : 4 then the length are in the ratio:

A) 2 : 3 : 4

B) 4 : 3 : 2

C) 3 : 2 : 1

D) 6 : 4 : 3

• question_answer34) 34.  of a transistor is 100 and input resistance is $10\,\Omega$ and out resistance is $10\,0\,\Omega$. Then power gain of the transistor is: (under CE)

A) ${{10}^{3}}$

B) ${{10}^{4}}$

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

D) ${{10}^{6}}$

• question_answer35) If the radius of a copper wire carrying a current is doubled. The drift velocity of the electron will be:

A) increase first then decrease

B) remain same

C) increase four time

D) decrease four times

• question_answer36) The minimum deviation produced by a $60{}^\circ$ prism is found to be$30{}^\circ$. The refractive index of the material of the prism is:

A) 1.414

B) 0.707

C) 1.5

D) 1.4

• question_answer37) A cell of emf 6 V and resistance 0.5 ohm is short circuited. The current in the cell is:

A) 3 amp

B) 12 amp

C) 24 amp

D) 6 amp

• question_answer38) The amount of heat energy required to convert 1 kg of ice at $0{}^\circ C$ into steam at $100{}^\circ C$ is:

A) 80 kcal

B) 540 kcal

C) 620 kcal

D) 720 kcal

• question_answer39) A heater draws a current of 2 A when connected to a 250 V source. The rate of energy dissipation is:

A) 500 W

B) 1000 W

C) 250 W

D) 125W

• question_answer40) Two like magnetic poles of strength 10 and 40 S.I. units are separated by a distance 30cm. The intensity of magnetic field is zero on the line joining them:

A) at a point 10 cm from the stronger pole

B) at a point 20 cm from the stronger pole

C) at the mid-point

D) at infinity

• question_answer41) If the same volume of two liquids of densities ${{d}_{1}}$and ${{d}_{2}}$ flow in times ${{t}_{1}}$ and ${{t}_{2}}$ through the same capillary tube the ratio of their coefficients of viscosity is given by:

A) $\frac{{{d}_{1}}{{d}_{2}}}{{{t}_{1}}{{t}_{2}}}$

B) $\frac{{{d}_{1}}{{d}_{2}}}{{{t}_{2}}{{t}_{1}}}$

C) $\frac{{{d}_{1}}{{d}_{1}}}{{{t}_{2}}{{t}_{2}}}$

D) $\frac{{{t}_{1}}}{{{t}_{2}}}$

• question_answer42) An electron enters between two horizontal plates separated by 2 mm and having a potential difference of 1000 V. The force on electron is:

A) $\text{8 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-12}}}\text{N}$

B) $\text{8 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-14}}}\text{N}$

C) $\text{8 }\!\!\times\!\!\text{ 1}{{\text{0}}^{9}}\text{N}$

D) $\text{8 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{14}}}\text{N}$

• question_answer43) A man travels 4 km due East and then 3 km due North. The magnitude of his displacement is:

A) 7 km

B) 1 km

C) 5 km

D) None of these

• question_answer44) The mass of an electron is $9.11\,\times {{10}^{-31}}\,kg$. Number of electrons required to make 10 g is:

A) $\text{1}\text{.1 }\!\!\times\!\!\text{ 1}{{\text{0}}^{27}}$

B) $\text{11 }\!\!\times\!\!\text{ 1}{{\text{0}}^{27}}$

C) $\text{9}\text{.11 }\!\!\times\!\!\text{ 1}{{\text{0}}^{-28}}$

D) $\text{9}\text{.11 }\!\!\times\!\!\text{ 1}{{\text{0}}^{28}}$

• question_answer45) The action of a nib split at the top is explained by:

A) gravity flow

B) diffusion of fluid

C) capillary action

D) osmosis of liquid

• question_answer46) For a triode the plate resistance is 25000 ohm and mutual conductance is $1.2\,\times {{10}^{-3}}\,mho$. What will be the amplification factor?

A) 30

B) 25

C) 12

D) 120

• question_answer47) A nucleus of an element $_{84}{{X}^{202}}$ emits an $\alpha$-particle first, a $\text{-}$particle next and then a gamma photon. The final nucleus formed has an atomic number :

A) 200

B) 199

C) 83

D) 198

• question_answer48) The half-life of random is 3.8 days. Three fourth of a radon sample decay in:

A) 5.02 days

B) 15.2 days

C) 7.6 days

D) 11.4 days

• question_answer49) The saturation vapour pressure of waters 373 K is:

A) 152 cm of mercury

B) 76 cm of mercury

C) zero

D) depends on external conditions an hence no definite value

• question_answer50) If the temperature of a black body increased rom $27{}^\circ C$ to $327{}^\circ C$, the radiation emitted increases by a fraction of:

A) 16

B) 8

C) 4

D) 2

• question_answer51) The echo of a gunshot is heard 8 secur after the gun is fired. How far from him (lie surface that reflects the sound (velocity of sound in air = 350 m/s)

A) 1400 m

B) 2800 m

C) 700 m

D) 350 m

• question_answer52) Two wires of brass of diameter 1 mm an 2 mm have equal weight. Their electrical resistance will be in the ratio :

A) 16 : 1

B) 1 : 16

C) 1 : 4

D) 4 : 1

• question_answer53) The ratio of the induced emf in a coli having 50 turns and rotating with 50 Hz to that of the induced emf in a coil having 100 turns and rotating with 150 Hz in the same magnetic field is:

A) 1 : 2

B) 2 : 3

C) 3 : 2

D) 1 : 6

• question_answer54) A body is sliding on a smooth inclined plane requires 4 second to reach the bottom starting from rest at the top. How much rime does it take to cover $\frac{1}{4}$ the distance starting from rest?

A) 1 s

B) 2 s

C) 3 s

D) 4 s

• question_answer55) Watt per ampere is unit of:

A) electric potential

B) electric field

C) electric energy

D) electric power

• question_answer56) A glass slab of thickness 4 cm contains same number of waves as 5 cm thickness of water, when both are traversed by the same monochromatic light. If the refractive index of water is 4/3, what is the refractive index of glass:

A) 5/3

B) 5/4

C) 16/5

D) 1.5

• question_answer57) The current through a lamp decreases by 1%. Then the power of the lamp will drop by:

A) 1%

B) 2%

C) 4%

D) 0.61%

• question_answer58) The first exitation energy of hydrogen atom is X eV, Then ionization energy of the atom would be : (in eV)

A) $\frac{3X}{4}$

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

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

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

• question_answer59) ${{\mu }_{0}}$ and ${{\varepsilon }_{0}}$ demote the permeability and permittivity of free space the dimension of ${{\mu }_{0}}{{\varepsilon }_{0}}$ are:

A) $\text{ }\!\![\!\!\text{ L}{{\text{T}}^{\text{-1}}}\text{ }\!\!]\!\!\text{ }$

B) $\text{ }\!\![\!\!\text{ }{{\text{L}}^{-2}}{{\text{T}}^{2}}\text{ }\!\!]\!\!\text{ }$

C) $[{{M}^{-1}}{{L}^{-3}}{{\theta }^{2}}{{T}^{2}}]$

D) $[{{M}^{-1}}{{L}^{-3}}{{\theta }^{2}}{{T}^{2}}]$

• question_answer60) If the radius of earth is reduced by 1% without changing the mass, then change in the acceleration due to gravity will be:

A) 2% decrease

B) 2% increase

C) 1% increase

D) 1% decrease

• question_answer61) The element which forms ions in the dimeric state is :

A) copper

B) nickel

C) silver

D) mercury

• question_answer62) Red phosphorus is chemically less reactive than white phosphorus because :

A) it has a polymeric structure

B) it does not contain tetrahedral${{P}_{4}}$molecules

C) it does not contain $PP$bonds

D) it has a linear structure

• question_answer63) Which of the following particles is not present in the nucleus?

A) Neutron

B) Proton

C) Electron

D) None of these

• question_answer64) What kind of radioactive decay does not lead to the formation of a daughter nucleus that is an isobar of the parent nucleus?

A) $\alpha$-partide

B) $\beta$-particle

C) Positron

D) Electron capture

• question_answer65) The smallest among the following ion is:

A) $M{{g}^{2+}}$

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

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

D) $A{{l}^{3+}}$

• question_answer66) When a molten ionic hydride is electrolysed :

A) hydrogen is liberated at cathode

B) hydrogen is liberated at anode

C) there is no reaction

D) ${{H}^{-}}$ions produced, migrate to the cathode

• question_answer67) The oxidation number of nickel in${{K}_{4}}[Ni{{(CN)}_{4}}]$ is:

A) - 2

B) - 1

C) + 2

D) 0

• question_answer68) Which of the following has minimum ionization energy?

A) Ge

B) Sc

C) As

D) Br

• question_answer69) Which one of the following compounds, is used in photography?

A) $AgCl$

B) $AgBr$

C) $AgI$

D) $AgN{{O}_{3}}$

• question_answer70) p-orbitals in a given shell can accommodate upto:

A) four electrons

B) two electrons with parallel spin

C) six electrons

D) two electrons with opposite spins

• question_answer71) The radiations from a naturally occurring radio element, as seen after deflection in a magnetic field in one direction, are:

A) definitely -rays

B) definitely -rays

C) both a and -rays

D) either a or -rays

• question_answer72) The carbonate which does not leave any residue on heating is:

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

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

C) $A{{g}_{2}}C{{O}_{3}}$

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

• question_answer73) Which is the strongest acid?

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

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

C) $HCl$

D) $HN{{O}_{3}}$

• question_answer74) The compound which does not possess a peroxide linkage is:

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

B) $Cr{{O}_{5}}$

C) ${{H}_{2}}S{{O}_{5}}$

D) $Pb{{O}_{2}}$

• question_answer75) The type of glass used in making lenses and prisms is:

A) flint glass

B) jena glass

C) pyrex glass

D) quartz glass

• question_answer76) The oxide which is not reduced by hydrogen is:

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

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

C) $F{{e}_{2}}{{O}_{3}}$

D) ${{P}_{4}}{{O}_{10}}$

• question_answer77) Which of the following complex has paramagnetic behaviour?

A) ${{K}_{4}}[Fe{{(CN)}_{6}}]$

B) $[Cu{{(N{{H}_{3}})}_{5}}Cl]$

C) ${{[NiC{{l}_{4}}]}^{2-}}$

D) all of these

• question_answer78) The half-life period of 10 g of radium sample is 1600 year. If 20 g of sample is taken, in how many years will it be remained 10 g?

A) 1600 years

B) 3200 years

C) 800 years

D) none of these

• question_answer79) Hydrogen has a tendency to gain one electron to acquire helium configuration. In this respect, it resembles:

A) halogens

B) actinides

C) transition elements

D) alkali metals

• question_answer80) The correct set of four quantum number of the valence electron (outermost) of rubidium (Z = 37) is:

A) $5,0,0,+\frac{1}{2}$

B) $5,1,0,+\frac{1}{2}$

C) $5,1,1,+\frac{1}{2}$

D) $6,0,0,+\frac{1}{2}$

• question_answer81) According to kinetic theory of gases:

A) there are inter-molecular attractions

B) there are no inter-molecular attractions

C) the velocity of the molecules decreases with each collision

D) molecules have considerable volume

• question_answer82) One litre of a gas is at a pressure of ${{10}^{-6}}$mm of mercury at$25{}^\circ C$. How many molecules are present in the vessel?

A) $3.2\times {{10}^{6}}$

B) $3.2\times {{10}^{10}}$

C) $3.2\times {{10}^{13}}$

D) $3.2\times {{10}^{4}}$

• question_answer83) The heat of formation of $PC{{l}_{5}}(s)$ will be: Given: $2P(s)+3C{{l}_{2}}(g)\xrightarrow{{}}2PC{{l}_{3}}(l);$ $\Delta H=-151.8\,k\,cal$ $PC{{l}_{3}}(l)+C{{l}_{2}}(g)\xrightarrow{{}}PC{{l}_{5}}(s)\,;$ $\Delta H=-\,32.8\,k\,cal$

A) $-108.7\text{ }k\,cal$

B) $+108.7\text{ }k\,cal$

C) $-184.6\text{ }k\,cal$

D) $+184.6\text{ }k\,cal$

• question_answer84) Which of the following compounds, is sparingly soluble in aqueous ammonia?

A) $AgI$

B) $AgBr$

C) $AgCl$

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

• question_answer85) The equilibrium pressure of $C{{O}_{2}},CO$ and ${{O}_{2}}$ are 0.6, 0.4 and 0.2 atmospheres respectively. ${{K}_{p}}$ for the reaction $2C{{O}_{2}}\rightleftharpoons 2CO+{{O}_{2}}$is:

A) 0.074

B) 0.0533

C) 0.177

D) 0.088

• question_answer86) The addition of an inert gas at constant volume to an equilibrium will favour :

A) the forward reaction

B) the reverse reaction

C) both reactions

D) neither forward nor backward reaction

• question_answer87) 20 ml of a N-solution of $KMn{{O}_{4}},$ just reacts with 20 ml of a solution of oxalic acid. The weight of oxalic acid crystals 1 litre of the solution is:

A) 31.5 g

B) 126 g

C) 63 g

D) 6.3 g

• question_answer88) Colloidal solution of gold is prepared by:

A) colloidal-mill method

B) reduction method

C) double decomposition method

D) Bredigs arc method

• question_answer89) For the reaction A + B$\xrightarrow{{}}$products, doubling the concentration of A, the rate of the reaction is doubled, but on doubling the concentration of B rate remains unaltered. The over-all order of the reaction is:

A) 1

B) 0

C) 2

D) 3

• question_answer90) The osmotic pressure of a dilute solution of a non-volatile solute, is:

A) directly proportional to its temperature

B) directly proportional to its absolute temperature

C) independent of the number of solute

D) independent of the nature of solvent

• question_answer91) Which of the following statements regarding a chemical equilibrium, is wrong?

A) An equilibrium can be shifted by altering the temperature or pressure

B) An equilibrium is dynamic

C) The same state of equilibrium is reached whether one starts with the reactants or the products

D) The forward reaction is favoured by the addition of a catalyst

• question_answer92) What will be the entropy change, if one mole of water at 373K is converted into steam? (latent heat of varporisation of water is $4.07\times {{10}^{4}}J\,mo{{l}^{-1}}$)

A) $10.91\,J{{K}^{-1}}\,mo{{l}^{-1}}$

B) $109.1\,J{{K}^{-1}}\,mo{{l}^{-1}}$

C) $2.07\,J{{K}^{-1}}\,mo{{l}^{-1}}$

D) cannot be calculated

• question_answer93) The total entropy of the universe always tends to reach at maximum. This statement is given by, which law of thermodynamics?

A) First law

B) Second law

C) Third law

D) Zeroth law

• question_answer94) What is the standard free-energy change at $25{}^\circ C$ for the reaction: $Cd(s)+P{{b}^{2+}}(aq.)\xrightarrow{{}}C{{d}^{2+}}(aq.)+Pb(s)$ Given: $E_{C{{d}^{2+}}/Cd}^{\text{o}}=-\,0.403\,V,$ $E_{P{{b}^{2+}}/Pb}^{\text{o}}=-\,0.126\,V$

A) $-\,5.346\text{ }kJ$

B) $-\,53.46\text{ }kJ$

C) $-\,106.92\text{ }kJ$

D) $-\,10.69\text{ }kJ$

• question_answer95) When salicylic acid is heated with zinc-powder, what is obtained?

A) Benzoic acid

B) Phenol

C) o-hydroxy benzyl alcohlol

D) Salicaldehyde

• question_answer96) Buna-S is polymer of:

B) styrene

D) chloroprene

• question_answer97) Sodium phenoxide, when treated with$C{{O}_{2}}$ under pressure, give:

A)

B)

C)

D) none of these

• question_answer98) The weakest base among the following is:

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

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

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

D) ${{C}_{6}}{{H}_{5}}N{{H}_{2}}$

• question_answer99) Chlorine reacts with ethanol to give:

A) ethyl chloride

B) chloroform

C) acetaldehyde

D) chloral

• question_answer100) Which of the following is the sweetest sugar?

A) Sucrose

B) Glucose

C) Fructose

D) Lactose

• question_answer101) In the presence of dil.NaOH, two molecules of an aldehyde may condense to form:

A) an acid

B) a -hydroxy aldehyde

C) a -hydroxy ketone

D) an alcohol

• question_answer102) Which of the following is false regarding diethyl ether?

A) It does not possess a dipole moment

B) It is soluble in water

C) It is soluble in concentrated ${{H}_{2}}S{{O}_{4}}$

D) It is inflammable

• question_answer103) Which of the following methods, is not used for purification of liquids?

A) Chromatography

B) Steam distillation

C) Distillation

D) Sublimation

• question_answer104) The alkaline hydrolysis of an ester represented by $RCOOR+O{{H}^{-}}\xrightarrow{{}}RCO{{O}^{-}}+ROH$is

A) first order, bimolecular

B) second order, bimolecular

C) bimolecular but zero order

D) unimolecular, first order

• question_answer105) The action of benzoyl chloride on hydroxy compounds in alkaline medium, is called:

A) Schotten-Baumann reaction

B) Friedel Crafts reaction

C) Perkin reaction

D) Kolbes reaction

• question_answer106) The structural formula of benzylphenyl ketone is:

A) ${{C}_{6}}{{H}_{5}}CO{{C}_{6}}{{H}_{5}}$

B) ${{C}_{6}}{{H}_{5}}CO\cdot CO{{C}_{6}}{{H}_{5}}$

C) ${{C}_{6}}{{H}_{5}}C{{H}_{2}}COC{{H}_{2}}{{C}_{6}}{{H}_{5}}$

D) ${{C}_{6}}{{H}_{5}}C{{H}_{2}}CO{{C}_{6}}{{H}_{5}}$

• question_answer107) The compound which reacts fastest with Lucas reagent is:

A) butan-1-ol

B) butan-2-ol

C) 2-methyl propan-1-ol

D) 2-methyl propan-2-ol

• question_answer108) What is the product, when phenol is treated with chloroform in presence of alkali?

A) Salcylic acid

B) Salicaldehyde

C) Benzoic acid

D) Phenacitin

• question_answer109) In the presence of$HCl$two molecules of acetone condense to form:

A) mesityloxide

B) forone

C) 4-methyl-2-pentanone

D) 4-methyl-2-pentanoic acid

• question_answer110) The product obtained, when acetophcnone is treated with zinc-amalgum in cone. $HCl,$is:

A) benzaldehyde

B) benzyl alcohol

C) ethyl benzene

D) cinnamic acid

• question_answer111) When ethyne is passed through dilute ${{H}_{2}}S{{O}_{4}}$ containing ${{H}_{g}}S{{O}_{4}},$ it forms:

A) ethanol

B) ethanoic acid

C) ethanal

D) ethene

• question_answer112) Which among the following pairs of reagents will not give an ether?

A) ${{C}_{2}}{{H}_{5}}Br+{{(C{{H}_{3}})}_{3}}CONa$

B) ${{C}_{2}}{{H}_{5}}Br+{{C}_{2}}{{H}_{5}}ONa$

C) ${{C}_{6}}{{H}_{5}}Br+{{C}_{3}}{{H}_{7}}ONa$

D) ${{C}_{2}}{{H}_{5}}Br+{{C}_{6}}{{H}_{5}}ONa$

• question_answer113) The compound required for the formation of a thermo-setting polymer with methanal is:

A) benzene

B) ammonia

C) benzaldehyde

D) phenol

• question_answer114) Which of the following gives lactic acid on treating with HCN followed by hydrolysis?

A) $HCHO$

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

C) ${{C}_{6}}{{H}_{5}}CHO$

D) $C{{H}_{3}}COC{{H}_{3}}$

• question_answer115) pH of a solution is 5. Its hydroxyl ion concentration is:

A) $5$

B) $10$

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

D) ${{10}^{-9}}$

• question_answer116) Which of the following ${{K}_{a}}$ values, represents the strongest acid?

A) ${{10}^{-4}}$

B) ${{10}^{-8}}$

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

D) ${{10}^{-2}}$

• question_answer117) Solder is an alloy of:

A) $Pb+Cu$

B) $Cu+Sn$

C) $Pb+Sn$

D) $Sn+Al$

• question_answer118) Phosgene, a poisonous gas, is chemically:

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

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

C) $COC{{l}_{2}}$

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

• question_answer119) Which is the purest form of iron?

A) Pig iron

B) Cast iron

C) Wrought iron

D) Steel

• question_answer120) Isotonic solution have same:

A) boiling point

B) freezing point

C) molar concentration

D) vapour pressure

• question_answer121) In nature, autogamy in plants is avoided since the seeds produced:

A) are fewer in number

B) do not germinate successfully

C) do not produce healthy plant

D) all of the above

• question_answer122) Dialysis is performed on patients suffering from:

A) heart trouble

B) lung trouble

C) ulcer

D) kidney failure

• question_answer123) Dragonflies play an important role because they:

A) arc pollinating agent

B) feed entirely on mosquito adults and mosquito larva

D) are vectors for disease carrying germs

• question_answer124) Which type of soil is best suited for the cultivation of cotton in India?

A) Loamy soil

B) Black soil

C) Sandy soil

D) Clayey soil

• question_answer125) The aerial vertical stout part of the banana is formed the:

A) stem

B) leaf sheaths

C) lamina of leaves

D) midrib of leaves

• question_answer126) In fern plant, the ejection of spores with force is achieved by the:

A) sporangiophore

B) annulus

C) stomium

D) indusium

• question_answer127) The commercial bath sponges belongs to:

A) Protozoa

B) Porifera

C) Coetenterata

D) Echinodermata

• question_answer128) The part of the leaf between the upper epidermis and the lower epidermis is called:

A) mid rib

B) hypodermis

C) mesophyll

• question_answer129) The smallest flower is that of the:

A) onion

B) mustard

C) fig

D) Wolff Microscopia

• question_answer130) Ginger is a stem, not a root because it has:

A) food storage

B) burning taste

C) nodes and internodes

D) flowers

• question_answer131) Which of the following grouping is correct?

A) Amoeba, Paramecium, Plasmodium

B) Tape worm, Liver fluke, Ascaris

C) Butterfly, Cockroach, Oyster

D) Parrot, King fisher, Rana

• question_answer132) Which part of the sperm has the aggregation of Golgi bodies?

A) Middle piece

B) Tail

C) Axial filament

D) Acrosome

• question_answer133) The seeds of Cycas are:

A) enclosed by fruit wall

B) enclosed within the flower

C) naked and there is no fruit wall

D) absent

• question_answer134) The gaseous hormone inducing die ripening of fruits is:

A) auxin

B) gibberellin

C) florigen

D) ethylene

• question_answer135) Kwashiorkor, an African word to signify rejected ones affecting children of under developed and developing countries with symptoms of stunted growth/ loss of appetite, anaemia, protruding bellies, matchstick legs, resulting in great mortality, is due the deficiency of:

A) vitamins

B) fats

C) proteins

D) carbohydrates

• question_answer136) A hyphae which is multinucleated and asptate is known as:

A) hormogone

B) mycelium

C) coenocytic

D) hypanthodium

• question_answer137) The antherozoids are the:

A) pollen grains produced from anthers

B) biciliated male gametes of fern

C) antheridial clusters

D) female gametes

• question_answer138) The blood corpuscle that engulf bacteria that get into our body is termed:

A) erythrocyte

B) phagocyte

C) thrombocyte

D) eosinophils

A) useful in cellulose digestion

B) an excretory structure

C) a vestigial organ

• question_answer140) Whales are aquatic mammals and the respiration is with the help of:

A) gills

B) lungs

C) skin

D) oral cavity

• question_answer141) The tusk of the elephant is formed:

A) from incisors

B) from canines

C) of prolongation of the skull

D) by the thickening of the skin of the head

• question_answer142) Primordial atmosphere was believed to have contained:

A) ammonia

B) methane

C) water vapour

D) all of these

• question_answer143) Nitrates are good for increasing the food production. At the same time it has become harmful to man, because of pollution of water when it is taken with drinking water since it:

A) kills the intestinal symbiotic bacteria

B) produces excess of amino acids in our body

C) upsets the enzyme production

D) combines with the haemoglobin of R.B.C reducing oxygen transportability termed methaeglobinemia

• question_answer144) During voyaga, sea sickness is caused by the:

A) lungs

B) internal ears (semi-circular canal)

C) upset of stomach

D) muscles

• question_answer145) Mulberry-growing is associated with the:

A) control of insect pests

B) silk worm culture (Sericulture)

C) support for the grape vine

D) fodder for the cattle

• question_answer146) During hot days, the leaves wilt because:

A) the heat affects the chloroplasts

B) of excess of transpiration

C) of excess of photosynthesis

D) too much $C{{O}_{2}}$ is given out

• question_answer147) During the second conception, if the $R{{h}^{-}}$ mother has $R{{h}^{+}}$ foetus, it will:

A) have no effect

B) enable the embryo grow fast

C) cause erthroblastosis foetus when R.B.C. of foetus get destroyed at time lending to abortion.

D) change the $R{{h}^{+}}$ of foetus to $R{{h}^{-}}$

• question_answer148) Which of the following disease is caused by air pollution?

A) Rheumatism

B) Heart failure

C) Bronchitis

D) Leukemia

• question_answer149) The term test-tube baby implies the:

A) fertilization and the development of the ovum in the test tube

B) fertilization in the uterus and the development in the test tube

C) fertilization in the test tube and the development in the uterus

D) fertilization and development in the uterus

• question_answer150) An anti-viral substance, known to prevent the synthesis of new virus in the cell, is known as:

A) transferon

B) anti-body

C) interferon

D) inferno

• question_answer151) Cataract is caused by:

A) accumulation of the dust in the eye

B) lens getting opaque

C) nerves supplying the eyes getting weak

D) conjective becoming thickened

• question_answer152) Grafting involved the formation of a young plant:

A) with the root of scion and shoot of stalk

B) with the root of stalk and shoot of scion

C) by stem cutting

D) by layering

• question_answer153) Cleistogamous condition is present in:

A) Brassica

B) Solanum

C) Commelina

D) Allium cepa

A) male and female sex organs occurring in the same thallus

B) male and female sex organs occurring in different thallus

C) the differentiation of thallus shapes

D) the absence of sex organs

• question_answer155) Final product of carbohydrate digestion is:

A) maltose

B) sucrose

C) lactose

D) glucose

• question_answer156) Valves are present in:

A) arteries

B) veins

C) capillaries

D) bile duct

• question_answer157) In the hens egg the albumen is twisted on either ends forming two chords termed the:

A) chalaza

B) latebra

C) blastodisc

D) nucleus of Pander

• question_answer158) In the chlorophyta, the reserve food of protein surrounded by starch, form a compact body termed:

A) paramylum

B) pyrenoid

C) volutin

D) eye spot

• question_answer159) In plants respiration takes place:

A) during day only

B) during night only

C) all the 24 hours

D) at dusk

• question_answer160) The plant which is the source of commercial rubber is:

A) Euphorbia

B) Ficus

C) Parthenium

D) Haevia brasiliensis

• question_answer161) Androgens are secreted by:

A) testis

B) ovary

C) placenta

D) none of these

• question_answer162) In blue-green algae photosynthetic pigments are located in:

A) thylakoid

B) chromoplasm

C) chloroplast

D) centroplasm

• question_answer163) Calcium level in the blood is controlled by the:

A) thyroxin

B) parathormone

C) insulin

D) glucagon

• question_answer164) Eggs of Culex are:

A) boat shaped

B) cigar shaped

C) elongated

D) round

• question_answer165) The total larval period in housefly is:

A) 2-4 days

B) 4-6 days

C) 6-8 days

D) 10-14 days

• question_answer166) Insulin, the effective hormone for diabetes can be got only from animals and cannot be artificially produced. Recently, humulin a substance allied to insulin has been produced by introducing a coded DNA into the body of bacteria and this achievement is through:

A) cloning

B) inoculation

C) hybridization

D) genetical engineering

• question_answer167) The cell wall of the fungus contains:

A) pectin and cellulose

B) cellulose and chitin

C) chitin and pectin

D) silica and pectin

• question_answer168) When the blood comes out of the blood vessels, it thick and turns jelly like, plugging the wound, and it is termed:

A) agglutination

B) coagulation

C) haemolysis

D) haemophilia

• question_answer169) Sea urchin eggs are termed as:

A) cleidoic egg

B) microlecithal egg

C) mesolecithal egg

D) atecithal egg

A) fore brain

B) mid brain

C) hind brain

D) spinal cord

• question_answer171) Planktons are organisms which arc:

A) surface floaters

B) free swimmers

C) deep sea forms

D) burrowing forms

• question_answer172) When the centromere of a chromosome is located near the tip of the chromosome, the position is described as:

A) acrocentric

B) metacentric

C) telocentric

D) acentric

• question_answer173) The reptiles and birds cannot afford to lose water and hence, they excrete:

A) ammonia

B) urea

C) creatinine

D) uric acid

• question_answer174) The fertilized secondary nucleus of the ovule, during double fertilization, establishes the:

A) seed coat

B) embryo plant

C) endosperm

D) pericarp

• question_answer175) The type of inflorescence where in the main axis has limited growth and ends in a flower, is termed:

A) racemose

B) cymose

C) hypanthodium

D) cyathium

• question_answer176) In man the meiotic cell division takes place in:

B) nerve cells

C) muscular tissue

D) none of these

• question_answer177) The ventricles of the brain and the spinal canal of man contain a fluid termed the:

A) lymph

B) pyrenoid

C) volutin

D) cerebro-spinal fluid

• question_answer178) The method of the two strands of DNA separating like a zipper is termed:

A) delamination

B) reproduction

C) duplication

D) replication

• question_answer179) Pasteurisation of milk means:

A) removal of fat

B) addition of vitamin A and D

C) heating to 100?C for 30 minutes followed by quick cooling

D) heating upto 60?C for 30 minutes followed by quick cooling

• question_answer180) Lichen is a symbiotic association between:

A) bryophyta and fungi

B) algae and fungi

C) angiosperm and fungi

D) pteridophyta and algae

• question_answer181) To fly off the handle:

A) to be airborne

B) to lose ones temper

C) to take off

D) to dislocate

• question_answer182) To talk through ones hat:

A) to talk ignorantly

B) to talk nonsense

C) to talk discourteously

D) to talk boastfully

• question_answer183) To take with a grain of salt:

A) to take with some reservation

B) to take wholeheartedly

C) to take with total disbelief

D) to take seriously

• question_answer184) To meet ones Waterloo:

A) to die an ignoble death

B) to meet ones final defeat

C) to meet a strong adversary

D) to die fighting

• question_answer185) Something up ones sleeve:

A) something important

B) grand idea

C) a profitable plan

D) a secret plan

• question_answer186) To pull a long face:

A) to look angry

B) to look cheerful

C) to look gloomy

D) to look indifferent

• question_answer187) To fish in troubled waters:

A) to indulge in evil conspiracies

B) to make profit out of a disturbance

C) to catch fish in disturbed waters

D) to aggravate the situation

• question_answer188) To beat the air:

A) to make efforts in vain

B) to move vigorously

C) to talk foolishly

D) to move sluggishly

• question_answer189) A snake in the grass:

A) a secret or hidden enemy

B) a very ferocious snake

C) an unrecognizable danger

D) not a reliable person

A) misunderstanding

B) distrust

C) angry feeling

D) jealousy

• question_answer191) It has been raining cats and dogs.

A) raining musically

B) raining highly

C) raining cruelly

D) raining heavily

• question_answer192) He was cool as a cucumber.

A) nervous

B) fainted

D) cool and composed

• question_answer193) The long and the short of it is that they decided to marry.

A) stoutly

B) staunchly

C) all that need be left unsaid is

D) all that can need and be said is

• question_answer194) He refused point-blank to compromise on principles.

A) coldly

B) in a soft voice

C) flatly

D) hotly

• question_answer195) As our army attacked, the enemy retreated pell-mell.

A) in a courageous manner

B) in a disorderly manner

C) in an orderly manner

D) in a heap

• question_answer196) Directions: In the following questions, a proverb/idiom/phrase is followed by four alternative choices. Select from amongst the given alternatives which best explains the meaning of the proverb/idiom/phrases. One swallow does not always make a summer:

A) only one hot day does not mean that the summer has set in

B) one secret cannot save a persons life

C) one difficulty overcome does not mean that trouble is over

D) spring does not always follow a winter

• question_answer197) Directions: In the following questions, a proverb/idiom/phrase is followed by four alternative choices. Select from amongst the given alternatives which best explains the meaning of the proverb/idiom/phrases. Sent to Coventry:

A) ostracized

B) welcomed

C) sent to public school

D) None of these

• question_answer198) Directions: In the following questions, a proverb/idiom/phrase is followed by four alternative choices. Select from amongst the given alternatives which best explains the meaning of the proverb/idiom/phrases. To have a second string to ones bow:

A) to have second alternative in case the first one fails

B) so deceive someone

C) to keep ones powder dry

D) None of the above

• question_answer199) Directions: In the following questions, a proverb/idiom/phrase is followed by four alternative choices. Select from amongst the given alternatives which best explains the meaning of the proverb/idiom/phrases. To look a gift-horse in the mouth:

A) to pick flaws in a gift or favour

B) to appreciate a gift or favour

C) to be indifferent

D) None of these

• question_answer200) Directions: In the following questions, a proverb/idiom/phrase is followed by four alternative choices. Select from amongst the given alternatives which best explains the meaning of the proverb/idiom/phrases. To make fish of one and flesh of another:

A) to be extra smart

B) to be impartial

C) to become a non-vegetarian

D) to be partial