Solved papers for CET Karnataka Medical CET - Karnataka Medical Solved Paper-2008

done CET - Karnataka Medical Solved Paper-2008

• question_answer1) --Solar spectrum is an example for

A) line emission spectrum

B) continuous emission spectrum

C) band absorption spectrum

D) line absorption spectrum

• question_answer2) When a piece of metal is illuminated by a monochromatic light of wavelength X, then stopping potential is$3{{V}_{s}}$b. When same surface is illuminated by light of wavelength 2/1, then stopping potential becomes${{V}_{s}}$. The value of threshold wavelength for photoelectric emission will be

A) $4\lambda$

B) $8\lambda$

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

D) $6\lambda$

• question_answer3) The maximum kinetic energy of emitted electrons in a photoelectric effect does not depend upon

A) wavelength

B) frequency

C) intensity

D) work function

• question_answer4) The ratio of minimum wavelengths of Lyman and Balmer series will be

A) 1.25

B) 0.25

C) 5

D) 10

• question_answer5) Hydrogen atom does not emit -X-rays because

A) it contains only a single electron

B) energy levels in it are far apart

C) its size is very small

D) energy levels in it are very dose to each other

• question_answer6) The potential difference between A and B in the following figure is A) 32 V

B) 48 V

C) 24 V

D) 14 V

• question_answer7) The magnetic field at the centre of a circular current carrying conductor of radius r is B. The magnetic field on its axis at a distance r from the centre is Bg. The value of ${{B}_{c}}:\text{ }{{B}_{a}}$will be

A) 1 : $\sqrt{2}$

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

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

D) $\sqrt{2}$ : 1

• question_answer8) Current I is flowing in conductor shaped as shown in the figure. The radius of the curved part is r and the length of straight portion is very large. The value of the magnetic field at the centre O will be A) $\frac{{{\mu }_{0}}I}{4\pi r}\left( \frac{3\pi }{2}+1 \right)$

B) $\frac{{{\mu }_{0}}I}{4\pi r}\left( \frac{3\pi }{2}-1 \right)$

C) $\frac{{{\mu }_{0}}I}{4\pi r}\left( \frac{\pi }{2}+1 \right)$

D) $\frac{{{\mu }_{0}}I}{4\pi r}\left( \frac{\pi }{2}-1 \right)$

• question_answer9) Two tangent galvanometers A and B are identical except in their number of turns. They are connected in series. On passing a current through them, deflections of $60{}^\circ$ and $30{}^\circ$are produced. The ratio of the number of turns in A and B is

A) 1 : 3

B) 3 : 1

C) 1 : 2

D) 2 : 1

• question_answer10) The resultant force on the current loop PQRS due to a long current carrying conductor will be A) ${{10}^{-4}}N$

B) $3.6\times {{10}^{-4}}N$

C) $1.8\times {{10}^{-4}}N$

D) $5\times {{10}^{-4}}N$

• question_answer11) How many 6$\mu$F, 200 V condensers are needed to make a condenser of 18 $\mu$F, 600 V?

A) 9

B) 18

C) 3

D) 27

• question_answer12) The total energy stored in the condenser system shown in the figure will be A) 2$\mu$J

B) 4$\mu$J

C) 8$\mu$J

D) 16$\mu$J

• question_answer13) A metal wire is subjected to a constant potential difference. When the temperature of the metal wire increases, the drift velocity of the electron ink

A) increases, thermal velocity of the electron decreases

B) decreases, thermal velocity of the electron decreases

C) increases, thermal velocity of the electron increases

D) decreases, thermal velocity of the electron increases

• question_answer14) The equivalent resistance between the points A and B will be (each resistance is 15$\Omega$) A) 30$\Omega$

B) 8$\Omega$

C) 10$\Omega$

D) 40$\Omega$

• question_answer15) In the Bohr model of hydrogen atom, the electron is pictured to rotate in a circular orbit of radius$5\times {{10}^{-11}}m$, at a speed $2.2\times {{10}^{6}}$m/s. What is the current associated with electron motion?

A) 1.12 mA

B) 3 mA

C) 0.75 mA

D) 2.25 mA

• question_answer16) A certain current on passing through a galvanometer produces a deflection of 100 divisions. When a shunt of one ohm is connected, the deflection reduces to 1 division. The galvanometer resistance is

A) 100$\Omega$

B) 99$\Omega$

C) 10$\Omega$

D) 9.9$\Omega$

• question_answer17) Two similar circular loops carry equal currents in the same direction. On moving coils further apart, the electric current will

A) increase in both

B) decrease in both

C) remain unaltered

D) increases in one and decreases in the second

• question_answer18) The value of alternating emf E in the given circuit will be A) 220 V

B) 140 V

C) 100 V

D) 20 V

• question_answer19) A current of 5 A is flowing at 220 V in the primary coil of a transformer. If the voltage produced in the secondary coil is 2200 V and 50% of power is lost, then the current in secondary will be

A) 2.5 A

B) 5 A

C) 0.25 A

D) 0.5 A

• question_answer20) For a series LCR circuit at resonance, the statement which is not true is

A) Peak energy stored by a capacitor = peak energy stored by an inductor.

B) Average power = apparent power.

C) Wattless current is zero.

D) Power factor is zero.

• question_answer21) If ${{\mu }_{0}}$permeability of free space and ${{\varepsilon }_{0}}$ is permittivity of free space, the speed of light in vacuum is given by

A) $\sqrt{{{\mu }_{0}}{{\varepsilon }_{0}}}$

B) $\sqrt{\frac{{{\mu }_{0}}}{{{\varepsilon }_{0}}}}$

C) $\sqrt{\frac{1}{{{\mu }_{0}}{{\varepsilon }_{0}}}}$

D) $\sqrt{\frac{{{\varepsilon }_{0}}}{{{\mu }_{0}}}}$

• question_answer22) In Youngs double slit experiment, a third slit is made in between the double slits. Then

A) intensity of fringes totally disappears

B) only bright light is observed on the screen

C) fringes of unequal width are formed

D) contrast between bright and dark fringes is reduced

• question_answer23) In a two slit experiment with monochromatic light fringes are obtained on a screen placed at some distance from the slits. If the screen is moved by $5\times {{10}^{-2}}$m towards the slits, the change in fringe width is$3\times {{10}^{-5}}m$. If separation between the slits is${{10}^{-3}}m$, the wavelength of light used is

A) $6000{{A}^{o}}$

B) $5000{{A}^{o}}$

C) $3000{{A}^{o}}$

D) $4500{{A}^{o}}$

• question_answer24) In a Fraunhofer diffraction experiment at a single slit using a light of wavelength 400 nm, the first minimum is formed at an angle of 30?. The direction 6 of the first secondary maximum is given by

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

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

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

D) $ta{{n}^{-1}}\left( \frac{2}{3} \right)$

• question_answer25) Maximum diffraction takes place in a given slit for

A) $\gamma$-rays

B) ultraviolet light

C) infrared light

• question_answer26) If an electron and a proton have the same de-Broglie wavelength, then the kinetic energy of the electron is

A) zero

B) less than that of a proton

C) more than that of a proton

D) equal to that of a proton

• question_answer27) Two protons are kept at a separation of$40{{A}^{o}}$. ${{F}_{n}}$ is the nuclear force and ${{F}_{e}}$is the electrostatic force between them. Then

A) ${{F}_{n}}>>{{F}_{e}}$

B) ${{F}_{n}}={{F}_{e}}$

C) ${{F}_{n}}<<{{F}_{e}}$

D) ${{F}_{n}}={{F}_{e}}$

• question_answer28) Blue colour of sea water is due to

A) interference of sunlight reflected from the water surface

B) scattering of sunlight by the water molecules

C) image of sky in water

D) refraction of sunlight

• question_answer29) The ratio of the nuclear radii of elements with mass numbers 216 and 125 is

A) 216 : 125

B) $\sqrt{216}:\sqrt{125}$

C) 6 : 5

D) None of these

• question_answer30) On bombarding ${{U}^{235}}$by slow neutron, 200 MeV energy is released. If the power output of atomic reactor is 1.6 MW, then the rate of fission will be

A) $5\times {{10}^{22}}/s$

B) $5\times {{10}^{16}}/s$

C) $8\times {{10}^{16}}/s$

D) $20\times {{10}^{16}}/s$

• question_answer31) A ray of light enters from a rarer to a denser medium. The angle of incidence is i. Then the reflected and refracted rays are mutually perpendicular to each other. The critical angle for the pair of media is

A) ${{\sin }^{-1}}\left( \tan \,i \right)$

B) $ta{{n}^{-1}}\left( sin\,i \right)$

C) $si{{n}^{-1}}\left( \cot \,i \right)$

D) ${{\cos }^{-1}}\left( \tan \,i \right)$

• question_answer32) A fish in water (refractive index n) looks at a bird vertically above in the air. If y is the height of the bird and x is the depth of the fish from the surface, then the distance of the bird as estimated by the fish is

A) $x+y\left( 1-\frac{1}{n} \right)$

B) $x+ny$

C) $x+y\left( 1+\frac{1}{n} \right)$

D) $y+x\left( 1-\frac{1}{n} \right)$

• question_answer33) Figure shows a mixture of blue, green and red colored rays incident normally on a right angled prism. The critical angles of the material of the prism for red, green and blue are$46{}^\circ$, $44{}^\circ$ and $43{}^\circ$respectively. The arrangement will separate A) red colour from blue and green

B) blue colour from red and green

C) green colour from red and blue

D) all the three colours

• question_answer34) A convex and a concave lens separated by distance d are then put in contact. The focal length of the combination

A) decreases

B) increases

C) becomes 0

D) remains the same

• question_answer35) A convex lens is made of 3 layers of glass of 3 different materials as in the figures. A point object is placed on its axis. The number of images of the object are A) 1

B) 2

C) 3

D) 4

• question_answer36) An unpolarised beam of intensity l0 falls on a Polaroid. The intensity of the emergent light is

A) $\frac{{{I}_{0}}}{2}$

B) ${{I}_{0}}$

C) $\frac{{{I}_{0}}}{4}$

D) Zero

• question_answer37) Which of the following as a dichroic crystal?

A) Quartz

B) Tourmaline

C) Mica

D) Selenite

• question_answer38) Two identical metal spheres charged with $+12\mu F$and $-8\mu F$are kept at certain distance in air. They are brought into contact and then kept at the same distance. The ratio of the magnitudes of electrostatic forces between them before and after contact is

A) 12 : 1

B) 8 : 1

C) 24 : 1

D) 4 : 1

• question_answer39) A small conducting sphere of radius r is lying concentrically inside a bigger hollow conducting sphere of radius R. The bigger and smaller spheres are charged with Q and q (Q > q)and are insulated from each other. The potential difference between the spheres will be

A) $\frac{1}{4\pi {{\varepsilon }_{0}}}\left( \frac{q}{r}-\frac{q}{R} \right)$

B) $\frac{1}{4\pi {{\varepsilon }_{0}}}\left( \frac{q}{R}-\frac{Q}{r} \right)$

C) $\frac{1}{4\pi {{\varepsilon }_{0}}}\left( \frac{q}{r}-\frac{Q}{R} \right)$

D) $\frac{1}{4\pi {{\varepsilon }_{0}}}\left( \frac{Q}{R}-\frac{q}{r} \right)$

• question_answer40) The charges Q, $+q$and $+q$ are placed at the vertices of an equilateral triangle of side L If the net electrostatic potential energy of the system is zero, then Q is equal to

A) $-\frac{q}{2}$

B) $-q$

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

D) Zero

• question_answer41) Dimensional formula for the universal gravitational constant G is

A) $\left[ {{M}^{-1}}{{L}^{2}}{{T}^{-2}} \right]~$

B) $\left[ {{M}^{0}}{{L}^{0}}{{T}^{0}} \right]$

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

D) $\left[ {{M}^{-1}}{{L}^{3}}{{T}^{-1}} \right]$

• question_answer42) A body is projected vertically upwards. The times corresponding to height h while ascending and while descending are ${{t}_{1}}$and ${{t}_{2}}$respectively. Then the velocity of projection is (g is acceleration due to gravity)

A) $g\sqrt{{{t}_{1}}{{t}_{2}}}$

B) $\frac{g{{t}_{1}}{{t}_{2}}}{{{t}_{1}}+{{t}_{2}}}$

C) $\frac{g\sqrt{{{t}_{1}}{{t}_{2}}}}{2}$

D) $\frac{g\left( {{t}_{1}}+{{t}_{2}} \right)}{2}$

• question_answer43) A mass of 10 kg is suspended from a spring balance. It is pulled aside by a horizontal string so that it makes an angle of $60{}^\circ$with the vertical. The new reading of the balance is

A) 20 kg-wt

B) 10 kg-wt

C) 10$\sqrt{3}$kg-wt

D) 20$\sqrt{3}$ kg-wt

• question_answer44) A body weighs 50 g in air and 40 g in water. How much would it weigh in a liquid of specific gravity 1.5?

A) 30 g

B) 35 g

C) 65 g

D) 45 g

• question_answer45) A body of mass 4 kg is accelerated upon by a constant force, travels a distance of 5 m in the first second and a distance of 2 m in the third second. The force acting on the body is

A) 2 N

B) 4 N

C) 6 N

D) 8 N

• question_answer46) A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest its time period is T. With what acceleration should the lift be accelerated upwards in order to reduce its period to T/2? ($g$is acceleration due to gravity).

A) 2 g

B) 3 g

C) 4 g

D) g

• question_answer47) If y is the ratio of specific heats and R is the universal gas constant, then the molar specific heat at constant volume ${{C}_{v}}$is given by

A) $\gamma R$

B) $\frac{\left( \gamma -1 \right)R}{\gamma }$

C) $\frac{R}{\gamma -1}$

D) $\frac{\gamma R}{\gamma -1}$

• question_answer48) An ideal gas is taken via path ABCA as shown in figure. The net work done in the whole cycle is A) $3{{p}_{1}}{{V}_{1}}$

B) $-3{{p}_{1}}{{V}_{1}}$

C) $6{{p}_{1}}{{V}_{1}}$

D) Zero

• question_answer49) In which of the processes, does the internal energy of the system remain constant?

B) Isochoric

C) Isobaric

D) Isothermal

• question_answer50) The coefficient of thermal conductivity of copper is 9 times that of steel. In the composite cylindrical bar shown in the figure, what will be the temperature at the junction of copper and steel? A) $75{}^\circ C~$

B) $67{}^\circ C$

C) $25{}^\circ C~$

D) $33{}^\circ C$

• question_answer51) The equation of a simple harmonic wave is given by $y=6$sin$2\pi$$(2t-0.1\text{ }x)$, where x and y are in mm and t is in seconds. The phase difference between two particles 2 mm apart at any instant is

A) $18{}^\circ$

B) $36{}^\circ$

C) $54{}^\circ$

D) $72{}^\circ$

• question_answer52) With what velocity should an observer approach a stationary sound source, so that the apparent frequency of sound should appear double the actual frequency? (v is velocity of sound).

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

B) $3v$

C) $2v$

D) $v$

• question_answer53) If a black body emits 0.5 J of energy per second when it is at$27{}^\circ C$, then the amount of energy emitted by it when it is at $627{}^\circ C$will be

A) 40.5 J

B) 162 J

C) 13.5 J

D) 135 J

• question_answer54) A string vibrates with a frequency of 200 Hz. When its length is doubled and tension is altered, it begins to vibrate with a frequency of 300 Hz. The ratio of the new tension to the original tension is

A) 9 : 1

B) 1 : 9

C) 3 : 1

D) 1 : 3

• question_answer55) How many times more intense is a 60 dB sound than a 30 dB sound?

A) 1000

B) 2

C) 100

D) 4

• question_answer56) The masses of two radioactive substances are same and their half-lives are 1 yr and 2 yr respectively. The ratio of their activities after 4 yr will be

A) 1 : 4

B) 1 : 2

C) 1 : 3

D) 1 : 6

• question_answer57) $_{92}{{u}^{235}}$Undergoes successive disintegrations with the end product of$_{82}P{{b}^{203}}$. The number of $\alpha$ and $\beta$ particles emitted are

A) a = 6, p = 4

B) a = 6, p = 0

C) a = 8, p = 6

D) a = 3, p = 3

• question_answer58) The most stable particle in Baryon group is

A) neutron

B) omega-particle

C) proton

D) lambda-particle

• question_answer59) In an unbiased p-n junction

A) Potential at p is more than that at n

B) Potential at p is less than that at n

C) Potential at p is equal to that at n

D) Potential at p is +ve and that at n is -ve

• question_answer60) To get an output Y = 1 from the circuit shown, the inputs A, B and C must be respectively A) 0, 1, 0

B) 1, 0, 0

C) 1, 0, 1

D) 1, 1, 0

• question_answer61) The number of nodal planes present in ${{\sigma }^{*}}s$ antibonding orbitals is

A) $1$

B) $2$

C) $0$

D) $3$

• question_answer62) Which of the following electrolytic solutions has the least specific conductance?

A) $0.02N$

B) $0.2N$

C) $2N$

D) $0.002N$

• question_answer63) The overlapping of orbitals in benzene is of the type

A) $sp-sp$

B) $p-p$

C) $s{{p}^{2}}-s{{p}^{2}}$

D) $s{{p}^{3}}-s{{p}^{3}}$

• question_answer64) The calculated bond order of superoxide ion $(O_{2}^{-})$ is

A) $2.5$

B) $2$

C) $1.5$

D) $1$

• question_answer65) Which of the following can be measured by the Ostwald-Walker dynamic method?

A) Relative lowering of vapour pressure

B) Lowering of vapour pressure

C) Vapour pressure of the solvent

D) All of the above

• question_answer66) Mesomeric effect involves delocalisation of

A) pi electrons

B) Sigma electrons

C) Protons

D) None of these

• question_answer67) Which of the following has the maximum number of unpaired d electrons?

A) $Z{{n}^{2+}}$

B) $F{{e}^{2+}}$

C) $N{{i}^{3+}}$

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

• question_answer68) One mole of which of the following has the highest entropy?

A) Liquid nitrogen

B) Hydrogen gas

C) Mercury

D) Diamond

• question_answer69) Which of the following species does not exert a resonance effect?

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

B) ${{C}_{6}}{{H}_{5}}\overset{+}{\mathop{N}}\,{{H}_{3}}$

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

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

• question_answer70) A complex compound in which the oxidation number of a metal is zero is

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

B) ${{K}_{3}}[Fe{{(CN)}_{6}}]$

C) $[Ni{{(CO)}_{4}}]$

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

• question_answer71) Catalytic dehydrogenation of a primary alcohol gives a

A) Secondary alcohol

B) Aldehyde

C) Ketone

D) Ester

• question_answer72) Excess of $PC{{l}_{5}}$ reacts with cone ${{H}_{2}}S{{O}_{4}}$ giving

A) Chlorosulphonic acid

B) Thionyl chloride

C) Sulphuryl chloride

D) Sulphurous acid

• question_answer73) If one mole of ammonia and one mole of hydrogen chloride are mixed in a closed container to form ammonium chloride gas, then

A) $\Delta H>\Delta U$

B) $\Delta H=\Delta U$

C) $\Delta H<\Delta U$

D) there is no relationship

• question_answer74) The compound on dehydrogenation gives a ketone. The original compound is

A) Primary alcohol

B) Secondary alcohol

C) Tertiary alcohol

D) Carboxylic acid

• question_answer75) Which is the most easily liquefiable rare gas?

A) $Xe$

B) $Kr$

C) $Ar$

D) $Ne$

• question_answer76) Three moles of $PC{{l}_{5}}$, three moles of $PC{{l}_{3}}$ and two moles of $C{{l}_{2}}$ are taken in a closed vessel. If at equilibrium the vessel has 1.5 moles of $PC{{l}_{5}}$, the number of moles of $PC{{l}_{3}}$ present in it is

A) $5$

B) $3$

C) $6$

D) $4.5$

• question_answer77) How many optically active stereomers are possible for butan-2,3-diol?

A) $1$

B) $2$

C) $3$

D) $4$

• question_answer78) An octahedral complex is formed when hybrid orbitals of the following type are involved

A) $s{{p}^{3}}$

B) $ds{{p}^{2}}$

C) ${{d}^{2}}s{{p}^{3}}$

D) $s{{p}^{2}}{{d}^{2}}$

• question_answer79) For the reaction $2HI(g)\rightleftharpoons {{H}_{2}}(g)+{{I}_{2}}(g)-Q\,kJ$,the equilibrium constant depends upon

A) Temperature

B) Pressure

C) Catalyst

D) Volume

• question_answer80) The angle strain in cyclobutane is

A) ${{24}^{o}}44$

B) ${{29}^{o}}16$

C) ${{19}^{o}}22$

D) ${{9}^{o}}44$

• question_answer81) Methoxy methane and ethanol are

A) Position isomers

B) Chain isomers

C) Functional isomers

D) Optical isomers

• question_answer82) When the azimuthal quantum number has the value of 2, the number of orbitals possible are

A) $7$

B) $5$

C) $3$

D) $0$

• question_answer83) For the reaction $F{{e}_{2}}{{O}_{3}}+3CO\xrightarrow{{}}2Fe+3C{{O}_{2}},$the volume of carbon monoxide required to reduce one mole of ferric oxide is

A) $22.4d{{m}^{3}}$

B) $44.8d{{m}^{3}}$

C) $67.2\text{ }d{{m}^{3}}$

D) $11.2\text{ }d{{m}^{3}}$

• question_answer84) The monomers of buna-S rubber are

A) Vinyl chloride and sulphur

C) Styrene and butadiene

D) Isoprene and butadiene

• question_answer85) An element with atomic number 21 is a

A) Halogen

B) Representative element

C) Transition element

D) Alkali metal

• question_answer86) n-propyl bromide on treating with alcoholic $KOH$ produces

A) Propane

B) propene

C) Propyne

D) propanol

• question_answer87) Mercury is a liquid metal because

A) It has a completely filled s orbital

B) It has a small atomic size

C) It has a completely filled d orbital that prevents d-d overlapping of orbitals

D) It has a completely filled d orbital that causes d-d overlapping

• question_answer88) A compound is formed by elements A and B. This crystallises in the cubic structure where the A atoms are at the comers of the cube and B atoms are at the body centres. The simplest formula of the compound is

A) $AB$

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

C) ${{A}_{8}}{{B}_{4}}$

D) $A{{B}_{6}}$

• question_answer89) Anisole can be prepared by the action of methyl iodide on sodium phenate. TW reaction is called

A) Wurtzs reaction

B) Williamsons reaction

C) Fittigs reaction

D) Etards reaction

• question_answer90) Malleability and ductility of metals can be accounted due to

A) The presence of electrostatic force

B) The crystalline structure in metal

C) The capacity of layers of metal ions to slide over the other

D) the interaction of electrons with metal ions in the lattice

• question_answer91) The correct order in which the first ionisation potential increases is

A) $Na,K,Be$

B) $K,Na,Be$

C) $K,Be,Na$

D) $Be,Na,K$

• question_answer92) $10c{{m}^{3}}$of $0.1N$monobasic acid requires $15\text{ }c{{m}^{3}}$of sodium hydroxide solution whose normality is

A) $1.5N$

B) $0.15N$

C) $0.066N$

D) $0.66N$

• question_answer93) The IUPAC name for tertiary butyl iodide is

A) 4-iodo butane

B) 2-iodo butane

C) l-iodo-3-methyl propane

D) 2-iodo-2-methyl propane

• question_answer94) When sulphur dioxide is passed in an acidified ${{K}_{2}}C{{r}_{2}}{{O}_{7}}$ solution, the oxidation state of sulphur is changed from

A) $+4$to $0$

B) $+4$ to $+2$

C) $+4$ to $+6$

D) $+6$ to $+4$

• question_answer95) Mass of $0.1$ mole of methane is

A) $1g$

B) $16g$

C) $1.6g$

D) $0.1g$

• question_answer96) The maximum number of hydrogen bonds that a molecule of water can have is

A) $1$

B) $2$

C) $3$

D) $4$

• question_answer97) A gas deviates from ideal behavior at a high pressure because its molecules

A) Attract one another

B) show the Tyndall effect

C) have kinetic, energy

D) are bound by covalent bonds

• question_answer98) The reagent used to convert an alkyne to alkene is

A) $Zn/HCl$

B) $Sn/HCl$

C) $Zn-Hg/HCl$

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

• question_answer99) When compared to $\Delta {{G}^{o}}$ for the formation of $A{{l}_{2}}{{O}_{3}}$, the $\Delta {{G}^{o}}$ for the formation of $C{{r}_{2}}{{O}_{3}}$ is

A) Higher

B) lower

C) Same

D) unpredicted

• question_answer100) In order to increase the volume of a gas by 10%, the pressure of the gas should be

A) Increased by 10%

B) Increased by 1%

C) Decreased by 10%

D) Decreased by 1%

• question_answer101) Helium is used in balloons in place of hydrogen because it is

A) Incombustible

B) Lighter than hydrogen

D) More abundant than hydrogen

• question_answer102) The basic principle of Cottrells precipitator is

A) Le-Chateliers principle

B) Peptisation

C) Neutralisation of charge on colloidal particles

D) Scattering of light

• question_answer103) When carbon monoxide is passed over solid caustic soda heated to${{200}^{o}}C$, it forms

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

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

C) $HCOONa~$

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

• question_answer104) ${{N}_{2}}+3{{H}_{2}}2N{{H}_{3}}+heat$. What is the effect of the increase of temperature on the equilibrium of the reaction?

A) Equilibrium is shifted to the left

B) Equilibrium is shifted to the right

C) Equilibrium is unaltered

D) Reaction rate does not change

• question_answer105) Hydrogen gas is not liberated when the following metal is added to dil $HCl$

A) $Ag$

B) $Zn$

C) $Mg$

D) $Sn$

• question_answer106) Consider the Born-Haber cycle for the formation of an ionic compound given below and identify the compound (Z) formed. A) ${{M}^{+}}{{X}^{-}}$

B) ${{M}^{+}}{{X}^{-}}(s)$

C) $MX$

D) ${{M}^{+}}{{X}^{-}}(g)$

• question_answer107) In the brown ring test, the brown colour of the ring is due to

A) Ferrous nitrate

B) Ferric nitrate

C) A mixture of $NO$ and $N{{O}_{2}}$

D) Nitrosoferrous sulphate

• question_answer108) Amines behave as

A) Lewis acid

B) Lewis base

C) Aprotic acid

D) Neutral compound

• question_answer109) Dalda is prepared from oils by

A) Oxidation

B) Reduction

C) Hydrolysis

D) Distillation

• question_answer110) The chemical name of anisole is

A) Ethanoic acid

B) Methoxy benzene

C) Propanone

D) Acetone

• question_answer111) The number of disulphide linkages present in insulin are

A) $1$

B) $2$

C) $3$

D) $4$

• question_answer112) 80 g of oxygen contains as many atoms as in

A) 80 g of hydrogen

B) 1 g of hydrogen

C) 10 g of hydrogen

D) 5 g of hydrogen

• question_answer113) Which metal has a greater tendency to form metal oxide?

A) $Cr$

B) $Fe$

C) $Al$

D) $Ca$

• question_answer114) Identify the reaction that does not take place in a blast furnace.

A) $CaC{{O}_{3}}\xrightarrow{{}}CaO+C{{O}_{2}}$

B) $CaO+Si{{O}_{2}}\xrightarrow{{}}CaSi{{O}_{3}}$

C) $2F{{e}_{2}}{{O}_{3}}+3C\xrightarrow{{}}4Fe+3C{{O}_{2}}$

D) $C{{O}_{2}}+C\xrightarrow{{}}2CO$

• question_answer115) Waxes are esters of

A) Glycerol

B) Long chain alcohols

C) Glycerol and fatty acid

D) long chain alcohols and long chain fatty acids

• question_answer116) An ionic compound is expected to have tetrahedral structure if ${{r}_{+}}/{{r}_{-}}$ lies in the range of

A) $0.414$to$0.732$,

B) $0.225$to $0.414$

C) 0.155 to $0.225$

D) $0.732$ to $1$

• question_answer117) Among the following, which is least acidic?

A) Phenol

B) o-cresol

C) p-nitrophenol

D) p-chlorophenol

• question_answer118) A ligand can also be regarded as

A) Lewis acid

B) Bronsted base

C) Lewis base

D) Bronsted acid

• question_answer119) The colour of sky is due to

A) Transmission of light

B) Wavelength of scattered light

C) Absorption of light by atomspheric gases

D) All of the above

• question_answer120) Which of the following organic compounds answers to both iodoform test and Fehlings test?

A) Ethanol

B) Methanal

C) Ethanal

D) Propanone

• question_answer121) A leaf peeling of Tradescantia is kept in a medium having 10% NaCl. After a few minutes if we observe the leaf peel under the microscope, we are likely to see

A) entry of water into the cell

B) the cells bursting out

C) diffusion of NaCl into the cell

D) exit of water from the cell

• question_answer122) Early leaf spot disease in Arachis hypogea is caused due to infection of

A) Circospora personata

B) Gibberella fujikuroi

C) Agrobacterium tumefaciens

D) Phytophthora infestans

• question_answer123) Excessive growth of hair on the pinna is a feature found only in males because

A) the female sex hormone estrogen suppresses the character in females

B) the gene responsible for the character is present on the Y - chromosome only

C) the gene responsible for the character is recessive in females and dominant only in males

D) the character is induced in males as males produce testosterone

• question_answer124) Rapid increase in the blood sugar level of a patient can be immediately reduced by

A) injecting insulin intravenously

B) injecting insulin intramuscularly

C) administering glucagon intravenously

D) consuming large quantities of insulin tablets

• question_answer125) Which of the following is found exclusively in the sea water?

A) Crabs

B) Oysters

C) Prawns

D) Trygon

• question_answer126) The problem of necrosis and gradual senescence while performing tissue culture can be overcome by

A) spraying auxins

B) spraying cytokinins

C) suspension culture

D) subculture

• question_answer127) The immunoglobulin present in mothers milk is

A) IgD

B) IgE

C) IgM

D) IgA

• question_answer128) The diagram given by the side represents the sectional view of A) amphitropous ovule

B) campylotropous ovule

C) anatropous ovule

D) orthotropous ovule

• question_answer129) In CAM plants, $C{{O}_{2}}$required for photosynthesis enters the plant body during

A) day time through the lenticles

B) night through the stomata which are kept open

C) day time when the stomata are open

D) night when the hydathodes are open

• question_answer130) A detritivorous animal of economic importance is

A) earthworm

B) giriraja fowl

C) caterpillar larva

D) leech

• question_answer131) Human egg is

A) alecithal

B) centrolecithal

C) telolecithal

D) megalecithal

• question_answer132) There are 64 codons in the genetic dictionary as

A) there are 3 nonsense codons and 61 sense codons

B) there are 64 different types of tRNA

C) there are 64 amino acids to be coded

D) genetic code has a triplet nature

• question_answer133) Vasopressin released from the neurohypophysis is mainly responsible for

A) facultative reabsorption of water through Henles loop

B) obligatory reabsorption of water through Bowmans capsule

C) facultative reabsorption of water through DCT

D) obligatory reabsorption of water through PCT

• question_answer134) Identify the substage of prophase - I of meiosis during which synapsis takes place

A) diplotene

B) zygotene

C) leptotene

D) pachytene

• question_answer135) Protein part of a holoenzyme is called

A) exoenzyme

B) endoenzyme

C) coenzyme

D) apoenzyme

• question_answer136) A gradual decrease in the size of the tail during metamorphosis in the life cycle of frog is a good example for

A) programmed cell death

B) cell necrosis

C) cell senescence

D) pinocytic activity

• question_answer137) Spot out the zone of our country considered as the Hot spot of biodiversity and regarded as the Cradle of Speciation.

A) Western Ghats

B) North East

C) Himalayan base

D) Deccan Plateau

• question_answer138) In Bt cotton, a transgenic plant, Bt refers to

A) botanical

B) beta

C) biotechnology

D) Bacillus thurengiensis

• question_answer139) Sequence of cellular layers from the periphery towards the cortex in an old dicot stem is

A) epidermis, hypodermis, phellogen, phelloderm

B) epidermis, phellogen, phellum, epidermis

C) epidermis, hypodermis, cortex, endodermis

D) epidermis, phellum, phellogen, phelloderm

• question_answer140) Higher frequency of melanine British moths and DDT resistance in mosquitoes are cited as examples for

A) natural selection

B) point mutation

C) arrival of the fittest

D) genetic drift

• question_answer141) Benedicts reagent test is conducted to confirm the presence of

A) polysaccharides like starch

B) lipids

C) reducing sugars

D) proteins

• question_answer142) An alkaloid called Reserpine is extracted from

A) leaves of ashwagandha

B) roots of sarpagandha

C) leaves of sarpagandha

D) roots of ashwagandha

• question_answer143) Nobel Prize for medicine was given for confirming the role of Helicobacter pylori in causing

A) nephritis

B) rhinitis

C) bronchitis

D) peptic ulcer

• question_answer144) In the sigmoid growth curve given by the side, the alphabets indicate the sequence of events. Choose the correct option where the alphabet specifies the event

A)

 A = Phase of slow growth B = Phase of exponential growth C = Phase of diminishing growth D = Stationary phase

B)

 A = Phase of rapid growth B = Phase of diminishing growth C = Stationary phase D = Phase of slow growth

C)

 A = Diminishing growth B = Exponential growth C = Slow growth D = Stationary growth

D)

 A = Stationary phase B = Phase of slow growth C = Phase of rapid growth D = Phase of diminishing growth

• question_answer145) Transformation of the early reducing atmosphere of the earth into an oxidizing atmosphere was mainly due to the activities of

A) anaerobic photosynthesizers

B) anaerobic chemoheterotrophs

C) aerobic photosynthesizers

D) anaerobic heterotrophs

• question_answer146) Genetically dwarf plants can be induced to grow tall by using

A) gibberellins

B) phycobillins

C) auxins

D) cytokinins

• question_answer147) Match the phenomenon listed under Column - I with those listed under Column - II. Select the correct answer from the options given

 Column - I Column - II A. Warburg effect 1. Change in gene frequency by chance B. Pasteur effect 2. Postponing severance in the leaves by applying cytokinin C. Emerson effect 3. Decline in the consumption of respiratory substrate due to a change from anaerobic to aerobic respiration D. Wright effect 4. Inhibitory effect of ${{O}_{2}}$on photosynthesis ` 5. Enhancement of photosynthesis by subjecting chlorophyll to the effect of two different wavelengths of light

A) A- 4 B-5 C-2 D-3

B) A-5 B-3 C-1 D-4

C) A- 5 B-4 C-1 D-2

D) A-4 B- 3 C-5 D-1

• question_answer148) Which of the following is an agrostologic method of soil conservation?

A) Basin listing

B) Terracing

C) Dry farming

D) Mulching

• question_answer149) The sequence of events mentioned below are symbolised by alphabets. Choose the correct answer where the alphabets are matched with the processes \begin{align} & RNA\xrightarrow[{}]{A}DNA\xrightarrow[{}]{B}DNA \\ & \xrightarrow[{}]{{}}mRNA\xrightarrow[{}]{D}Polypeptide \\ \end{align}

A)

 A = Replication B = Transformation C = Transcription D = Translation

B)

 A = Reverse transcription B = Replication C = Transcription D = Translation

C)

 A = Replication B = Transcription C = Translation D = Transduction

D)

 A = Reverse transcription B = Translation C = Transcription D = Replication

• question_answer150) Identify the alga known for a biological activity called bioluminescence

A) Spirogyra

B) Chlorella

C) Cydotella

D) Noctiluca

• question_answer151) Who among the following is recognized as the father of Immunology?

A) Robert Koch

B) Ferdinand Kohn

C) Edward Jenner

D) Louis Pasteur

• question_answer152) Whether a child died after normal birth or died before birth can be confirmed by measuring

A) tidal volume of air

B) residual volume of air

C) the weight of the child

D) the dead space air

• question_answer153) Syndactyly, prehensile tail and long protrusible tongue are the unique features of

A) rhesus monkey

B) Archaeopteryx

C) horse fish

D) Chaemeleon

• question_answer154) Match the hormones listed under Column - I with their functions listed under Column - II. Choose the answer which gives the correct combination of the alphabets of the two columns.

 Column-I Column-II A Oxytocin 1. Stimulates ovulation B Prolactin 2. Implantation and maintenance of pregnancy C Luteinizing hormone 3. Lactation after child birth D Progesteron 4. 5. Uterine contraction during labour Reabsorption of water by nephrons

A) A- 4 B-2 C- 3 D- 5

B) A-5 B-3 C-1 D-4

C) A-4 B-3 C-1 D-2

D) A- 5 B-2 C-4 D-3

• question_answer155) A dihybrid test cross-yielding a result of 1 : 1 : 1 : 1 ratio is indicative of

A) 4 different types of gametes produced by the ${{F}_{1}}$- dihybrid

B) homozygous condition of the ${{F}_{1}}$- dihybrid

C) 4 different types of ${{F}_{1}}$- generation dihybrids

D) 4 different types of gametes produced by the ${{P}_{1}}$- parent

• question_answer156) Intercalary meristem is a derivative of

A) lateral meristem

B) promeristem

C) primary meristem

D) secondary meristem

• question_answer157) Which one of the following is not a device to promote cross - pollination?

A) Cleistogamy

B) Heterostyly

C) Herkogamy

D) Dichogamy

• question_answer158) Anterior choroid plexus is present on the

A) floor of diencephalon

B) cerebral hemispheres

C) roof of diencephalon

D) roof of medulla oblongata

• question_answer159) Which of the following statement is true about viruses?

A) All viruses known to man are obligate parasites

B) Some viruses have cellular structure and are saprophytes

C) Viruses are filterable facultative parasites

D) Viruses are capable of performing metabolic activities on their own

• question_answer160) A condition where a certain gene is present in only a single copy in a diploid cell is called

A) heterozygous

B) monogamous

C) homozygous

D) hemizygous

• question_answer161) An autosomal genetic disorder called cri-du-chat is caused due to

A) non - disjunction

B) mutation

C) deletion

D) duplication

• question_answer162) Notochord, skeletal system and dermis of the skin are the derivatives of

A) mesoderm

B) endoderm

C) ectoderm

D) all the three layers

• question_answer163) Photosynthesis cannot continue for long if during light reaction, only cyclic photophosphorylation takes place. This is because

A) only ATP is formed $NADP{{H}^{+}}+\text{ }{{H}^{+}}$is not formed

B) photosystem-I stops getting excited at a wavelength of light beyond 680 nm

C) there is unidirectional cyclic movement of the electrons

D) there is no evolution of${{O}_{2}}$

• question_answer164) Which of the following sequence is truely a systemic circulation pathway?

A) Right ventricle $\to$ Pulmonary aorta $\to$ Tissues $\to$ Pulmonary veins $\to$ Left auricle

B) Right auricle $\to$ Left ventricle $\to$ aorta $\to$ Tissues $\to$ Veins $\to$ Right auricle

C) Left auricle $\to$ Left ventricle $\to$ pulmonary aorta $\to$ Tissues $\to$ Right auricle

D) Left auricle $\to$ Left ventricle $\to$ aorta $\to$ Arteries $\to$ Tissues $\to$ veins $\to$ Right atrium

• question_answer165) Oxalosuccinic acid, an intermediary compound of Krebs cycle is a

A) 5 carbon compound

B) 6 carbon compound

C) 4 carbon compound

D) 3 carbon compound

• question_answer166) When body tissues are injured resulting in the loss of blood, the process of blood clotting begins and the blood platelets release

A) fibrinogen

B) thromboplastin

C) prothrombin

D) thrombin

• question_answer167) According to the tac - operon concept, which functional unit of the bacterial genetic material is responsible for suppressing the activity of the operator gene in the absence of lactose?

A) regulator gene

B) structural gene

C) promoter gene

D) represser protein

• question_answer168) A hybrid where the cytoplasm of two parent cells are fused by retaining only one parental nucleus is called

A) asymmetric somatic hybrid

B) cybrid

C) an interbreed

D) symmetric somatic hybrid

• question_answer169) A sexually transmitted disease symptomized by the development of chancre on the genitals is caused by the infection of

A) Treponema pallidum

B) Neisseria gonorrhoeae

C) Human Immunodeficiency Virus

D) Hepatitis - B virus

• question_answer170) A phenomenon where the third base of r RNA at its 5 end can pair with a non - complementary base of mRNA is called

A) universality

B) colinearity

C) degenerency

D) wobbling

• question_answer171) Given below are two statements A and B. Choose the correct answer related to the statements.

 Statement A: Ammo acids are amphoteric in their function. Statement B: All ammo acids are necessary for our body.

A) Statement A is correct. Statement B is wrong

B) Both the Statements A and B are correct

C) Statement A is wrong. Statement B is correct

D) Both the Statements A and B are wrong

• question_answer172) Plants like Aegle mormelos, Ocimum sanctum and Ficus religeosa are a group of plants designated as

A) medicinal plant species

B) lesser known food plants

C) traditional food crops

D) sacred species of plants

• question_answer173) In the diagram given by the side, different parts are indicated by alphabets. Choose the answer in which these alphabets correctly match with the parts they indicate. A)

 A = Rostellum B = Hooks C = Sucker D = Proglottids

B)

 A = Suctorial mouth, B = Hooks, C = Sucker, D = Segments

C)

 A = Mouth, B = Tentacles, C = Sucker, D = Segments

D)

 A = Sucker, B = Hairs, C = Ring, D = Proglottids

• question_answer174) In a vascular bundle, if xylem vessels develop in a centripetal fashion, the xylem is likely to be

A) mesarch

B) centrarch

C) endarch

D) exarch

• question_answer175) Which of the following plant material is an efficient water imbibant?

A) Lignin

B) Pectin

C) Agar

D) Cellulose

• question_answer176) Identify the plant parts whose transverse section show a clear and prominent pith

A) dicot stem and monocot stem

B) dicot stem and monocot root

C) dicot root and monocot root

D) dicot stem and dicot root

• question_answer177) In the diagram of the lateral view of the human brain, parts are indicated by alphabets. Choose the answer in which these alphabets have been correctly matched with the part which they indicate. A)

 A = Temporal lobe B = Parietal lobe C = Cerebellum D = Medulla oblongata E = Frontal lobe

B)

 A = Frontal lobe B = Temporal lobe C = Cerebrum D = Medulla oblongata E = Occipetal lobe

C)

 A = Temporal lobe B = Parietal lobe C = Cerebrum D = Medulla oblongata E = Frontal lobe

D)

 A = Frontal lobe B = Temporal lobe C = Cerebellum D = Medulla oblongata E = Perietal lobe

• question_answer178) Of all the environmental factors which is the most influential in determining the rate of transpiration?

A) Light

B) Water

C) Relative humidity of atmosphere

D) Temperature

• question_answer179) Curved portion of the Henles loop of the nephrons are lined by

A) squamous epithelium

B) columnar epithelium

C) ciliated epithelium

D) cuboidal epithelium

• question_answer180) In succulent plants like Opuntia, the RQ value will be

A) less than 1

B) more than 1

C) infinity

D) zero

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