# Solved papers for CET Karnataka Medical CET - Karnataka Medical Solved Paper-2003

### done CET - Karnataka Medical Solved Paper-2003

• question_answer1) The dimensions of $\frac{a}{b}$ in the equation P = $\frac{a-{{t}^{2}}}{bx}$ where P is pressure, x is distance and t is time, are:

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

B) $\left[ M{{T}^{-2}} \right]$

C) $\left[ L{{T}^{-3}} \right]$

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

• question_answer2) Three vectors satisfy the relation $\overrightarrow{A}.\overrightarrow{B}=0$and $\overrightarrow{A}.\overrightarrow{C}=0,$then A is parallel to:

A) $\overrightarrow{C}$

B) $\overrightarrow{B}$

C) $\overrightarrow{B}\times \overrightarrow{C}$

D) $\overrightarrow{B}.\overrightarrow{C}$

• question_answer3) A student is standing at a distance of 50 metre from the bus. As soon as the bus begins its motion with an acceleration of $1\text{ }m{{s}^{-2}},$ the student starts running towards the bus with a uniform velocity u. Assuming the motion to be along a straight road, the minimum value of u, so that the student is able to catch the bus is:

A) $8m{{s}^{-1}}$

B) $5m{{s}^{-1}}$

C) $12m{{s}^{-1}}$

D) $10m{{s}^{-1}}$

• question_answer4) For a given velocity, a projectile has the same range R for two angles of projection if ${{t}_{1}}$and ${{t}_{2}}$are the time of flight in the two cases, then:

A) ${{t}_{1}}{{t}_{2}}\propto R$

B) ${{t}_{1}}{{t}_{2}}\propto {{R}^{2}}$

C) ${{t}_{1}}{{t}_{2}}\propto \frac{1}{{{R}^{2}}}$

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

• question_answer5) Weight of a body of mass m decreases by 1% when it is raised to height h above the earths surface. If the body is taken to a depth h in a mine, change in its weight is:

A) 0.5% decrease

B) 2% decrease

C) 0.5% increase

D) 1% increase

• question_answer6) The displacement time graph of a particle executing S.H.M. is as shown in the figure. The corresponding force-time graph of the particle is:

A)

B)

C)

D)

• question_answer7) Which of the following sets of concurrent forces maybe in equilibrium?

A) ${{F}_{1}}=3N,{{F}_{2}}=5N,{{F}_{3}}=1N$

B) ${{F}_{1}}=3N,{{F}_{2}}=5N,{{F}_{3}}=9N$

C) ${{F}_{1}}=3N,{{F}_{2}}=5N,{{F}_{1}}=6N$

D) ${{F}_{1}}=3N,{{F}_{2}}=5N,{{F}_{3}}=15N$

• question_answer8) Youngs modulus of perfectly rigid body material is:

A) infinite

B) zero

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

D) $1\times {{10}^{10}}N/{{m}^{2}}$

• question_answer9) An ideal monoatomic gas at $27{}^\circ C$ is compressed adiabatically to 8/27 times of its present volume. The increase in temperature of the gas is:

A) $375{}^\circ C$

B) $402{}^\circ C$

C) $175{}^\circ C~$

D) $475{}^\circ C$

• question_answer10) A sample of ideal monoatomic gas is taken round the cycle ABCA as shown in the figure. The work done during the cycle is:

A) 3 PV

B) zero

C) 9 PV

D) 6 PV

• question_answer11) A bucket full of hot water is kept in a room. It cools from $75{}^\circ C$ to $70{}^\circ C$ in ${{t}_{1}}$minutes, from $70{}^\circ C$ to $65{}^\circ C$ in ${{t}_{2}}$minutes and from $65{}^\circ C$to $60{}^\circ C$in 13 minutes. Then:

A) ${{t}_{1}}<{{t}_{2}}<{{t}_{3}}$

B) ${{t}_{1}}={{t}_{2}}={{t}_{3}}$

C) ${{t}_{1}}<{{t}_{2}}>{{t}_{3}}$

D) ${{t}_{1}}>{{t}_{2}}>{{t}_{3}}$

• question_answer12) A fish, looking up through the water sees the outside world contained in a circular horizon. If the refractive index of water is $4/3$ and the fish is 12 cm below the surface of water, the radius of the circle in centimetre is:

A) $\frac{12\times 3}{\sqrt{5}}$

B) $12\times 3\times \sqrt{5}$

C) $\frac{12\times 3}{\sqrt{7}}$

D) $12\times 3\times \sqrt{7}$

• question_answer13) A given ray of light suffers minimum deviation in an equilateral prism P. Additional prisms Q and R of identical shape and material are now added to P, as shown in the figure. The ray will suffer:

A) same deviation

B) greater deviation

C) total internal reflection

D) no deviation

• question_answer14) The aperture of the objective lens of a telescope is made large so as to:

A) increase the resolving power of the telescope

B) increase the magnifying power of the telescope

C) to focus on distant objects

D) make image aberration less

• question_answer15) A lamp hanging 4 metres above the table is lowered by 1 metre. The illumination on the table:

A) decreased by 25%

B) increased by 25%

C) decreased by 66.7%

D) increased by 77.7%

• question_answer16) The equation of a transverse wave travelling along positive x axis with amplitude 0.2 m, velocity 360 m/sec and wavelength 60 m can be written as:

A) $y=0.2\sin \pi \left[ 6t+\frac{x}{60} \right]$

B) $y=0.2\sin \pi \left[ 6t-\frac{x}{60} \right]$

C) $y=0.2\sin 2\pi \left[ 6t-\frac{x}{60} \right]$

D) $y=0.2\sin 2\pi \left[ 6t+\frac{x}{60} \right]$

• question_answer17) If ${{\upsilon }_{m}}$is the velocity of sound in moist air, ${{\upsilon }_{d}}$ is the velocity of sound in dry air, under identical conditions of pressure and temperature:

A) ${{\upsilon }_{m}}<{{\upsilon }_{d}}$

B) ${{\upsilon }_{m}}>{{\upsilon }_{d}}$

C) ${{\upsilon }_{m}}{{\upsilon }_{d}}=1$

D) ${{\upsilon }_{m}}={{\upsilon }_{d}}$

• question_answer18) If T is the reverberation time of an auditorium of volume V, then

A) $T\propto {{V}^{2}}$

B) $T\propto V$

C) $T\propto \frac{1}{V}$

D) $T\propto \frac{1}{{{V}^{2}}}$

• question_answer19) Two wires are fixed in a sonometer. Their tensions are in the ratio 8 : 1. The lengths are in the ratio 36 : 35. The diameters are -in the ratio 4 : 1. Densities of the materials are in the ratio 1 : 2. If the higher frequency in the setting is 360 Hz, the beat frequency when the two wires are sounded together, is:

A) 8

B) 5

C) 10

D) 6

• question_answer20) A sound source is moving towards stationary listener with $\frac{1}{10}th$ of the speed of sound. The ratio of apparent to real frequency is:

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

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

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

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

• question_answer21) If v is the speed of sound in air then the shortest length of the closed pipe which resonates to a frequency n, is:

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

B) $\frac{v}{4n}$

C) $\frac{4n}{v}$

D) $\frac{2n}{v}$

• question_answer22) Cavitation is a special application property exhibited only by:

A) ultrasonics

B) electromagnetic waves

C) audible sound

D) infrasonics

• question_answer23) In Youngs double slit experiment, the fringe width is P, If the entire arrangement is placed in a liquid of refractive index n, the fringe width becomes:

A) $n\beta$

B) $\frac{\beta }{n+1}$

C) $\frac{\beta }{n-1}$

D) $\frac{\beta }{n}$

• question_answer24) Yellow light is used in single slit diffraction experiment with slit width 0.6 mm. If yellow light is replaced by X-rays, then the pattern will reveal that:

A) no diffraction pattern

B) that the central maxima narrower

C) less number of fringes

D) more number of fringes

• question_answer25) In an interference experiment, third bright fringe is obtained at a point on the screen with a light of 700 run. What should be the wavelength of the light source in order to obtain 5th bright fringe at the same point?

A) 630 nm

B) 500 nm

C) 420 nm

D) 750 nm

• question_answer26) If a ray of light in a denser medium enters into a rarer medium at an angle of incidence i, the angle of reflection and refraction are respectively r and r. If the reflected and refracted rays are at right angles to each other, the critical angle for the given pair of media is:

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

B) ${{\sin }^{-1}}\left( \tan r \right)$

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

D) cot (tan i)

• question_answer27) Waves that cannot be polarised are:

A) electromagnetic waves

B) light waves

C) longitudinal waves

D) transverse waves

• question_answer28) The phenomenon of rotation of plane of plane polarized light is called:

A) Kerr effect

B) double refraction

C) optical activity

D) dichroism

• question_answer29) As a result of interference of two coherent sources of light energy is:

A) redistributed and the distribution does not very with time

B) increased

C) redistributed and that distribution changes with time

D) decreased

• question_answer30) There are n1 photons of frequency v1 in a beam of light. In an equally energetic beam there are n2 photons of frequency v2. Then the correct relation:

A) $\frac{{{n}_{1}}}{{{n}_{2}}}=\frac{{{v}_{1}}}{{{v}_{2}}}$

B) $\frac{{{n}_{1}}}{{{n}_{2}}}=1$

C) $\frac{{{n}_{1}}}{{{n}_{2}}}=\frac{{{v}_{2}}}{{{v}_{1}}}$

D) $\frac{{{n}_{1}}}{{{n}_{2}}}=\frac{{{v}_{2}}^{2}}{{{v}_{1}}^{2}}$

• question_answer31) A charge q is placed at the centre of the line joining two equal point charges each equal to Q. The system of 3 charges will be in equilibrium if q is equal to:

A) + Q / 4

B) - Q / 2

C) + Q / 2

D) - Q / 4

• question_answer32) The inward and outward electric flux from a closed surface are respectively $8\times {{10}^{3}}$and $4\times {{10}^{3}}$ units. Then the net charge inside the closed surface is:

A) $-4\times {{10}^{3}}$coulomb

B) $4\times {{10}^{3}}$coulomb

C) $\frac{-4\times {{10}^{3}}}{{{\varepsilon }_{0}}}$ coulomb

D) $-\text{ }4\times {{10}^{3}}{{\varepsilon }_{0}}$coulomb

• question_answer33) In the circuit as shown in the figure, the effective capacitance between A and B is:

A) 2$\mu$F

B) 2$\mu$F

C) 8$\mu$F

D) 4$\mu$F

• question_answer34) Capacitance of a parallel plate capacitor becomes $\frac{4}{3}$times its original value, if a dielectric slab of thickness t = d/2 is inserted between the plates [d is the separation between the plates]. The dielectric constant of the slab is:

A) 4

B) 8

C) 2

D) 6

• question_answer35) A charged particle of mass m and charge q is released from rest in an uniform electric field E neglecting the effect of gravity, the kinetic energy of the charged particle after t second is:

A) $\frac{2{{E}^{2}}{{t}^{2}}}{mq}$

B) $\frac{E{{q}^{2}}m}{2{{t}^{2}}}$

C) $\frac{Eqm}{t}$

D) $\frac{{{E}^{2}}{{q}^{2}}{{t}^{2}}}{2m}$

• question_answer36) Two wires of the same dimensions but resistivities ${{\rho }_{1}}\,and\,{{\rho }_{2}}$ are connected in series. The equivalent resistivity of the combination is:

A) $\frac{{{\rho }_{1}}+{{\rho }_{2}}}{2}$

B) ${{\rho }_{1}}+{{\rho }_{2}}$

C) $2\left( {{\rho }_{1}}+{{\rho }_{2}} \right)$

D) $\sqrt{{{\rho }_{1}}{{\rho }_{2}}}$

• question_answer37) If a 30V, 90W bulb is to be worked in 120V line, the resistance to be connected in series with the bulb is:

A) 20 $\Omega$

B) 10 $\Omega$

C) 40 $\Omega$

D) 30 $\Omega$

• question_answer38) The potential difference between the terminals of a cell in open circuit is 2.2 volt with resistance of 5 ohm across the terminals of a cell , the terminal potential difference is 1.8 volt. The internal resistance of the cell is:

A) $\frac{9}{10}ohm$

B) $\frac{10}{9}ohm$

C) $\frac{7}{12}ohm$

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

• question_answer39) Thirteen resistances each of resistance R ohm are connected in the circuit as shown in the figure. The effective resistance between A and B is:

A) $\frac{4R}{3}\Omega$

B) $2R\,\Omega$

C) $R\,\Omega$

D) $\frac{2R}{3}\,\Omega$

• question_answer40) A group of N cells whose emf varies directly with the internal resistance as per the equation EN = 1.5 rN are connected as shown in the figure above. The current J in the circuit is:

A) 5.1 A

B) 0.51 A

C) 1.5 A

D) 0.15 A

• question_answer41) The temperature coefficient of resistance of a wire is $0.00125/{}^\circ C$. Its resistance is 1 ohm at 300 K. Its resistance will be 2 ohm at:

A) 1127 K

B) 1400 K

C) 1154 K

D) 1100 K

• question_answer42) A potentiometer has uniform potential gradient. The specific resistance of the material of the potentiometer wire is 10 ohm- metre and the current passing through it is 0.1 ampere, cross-section of the wire is 10 m. The potential gradient along the potentiometer wire is:

A) ${{10}^{-6}}V/m$

B) ${{10}^{-4}}V/m$

C) ${{10}^{-8}}V/m$

D) ${{10}^{-2}}V/m$

• question_answer43) A fuse wire with radius 1 mm blows at 1.5 ampere. The radius of the fuse wire of the same material to blow at 3A will be:

A) ${{3}^{1/4}}mm$

B) ${{4}^{1/3}}mm$

C) ${{3}^{1/2}}mm$

D) ${{2}^{1/3}}mm$

• question_answer44) A wire in the form of a circular loop of one turn carrying a current produces a magnetic field B at the centre. If the same wire is looped into a coil of two turns and carries the same current, the new value of magnetic induction at the centre is:

A) 3B

B) 56

C) 4B

D) 2B

• question_answer45) To send 10% of the main current through a moving coil galvanometer of resistance 99 ohm, the shunt required is:

A) 10 ohm

B) 9.9 ohm

C) 9 ohm

D) 11 ohm

• question_answer46) The magnetic flux linked with a coil at any instant t is given by $\phi =5{{t}^{3}}-100t+300,$the emf induced in the coil at t = 2 second is:

A) 40 V

B) -40 V

C) 300 V

D) 140 V

• question_answer47) A charged particles moves along the line AB, which lies in the same plane of a circular loop of conducting wire as shown in the figure. Then:

A) no current will be induced in the loop

B) the current induced in the loop will change its direction as the charged particle passes by

C) the current induced will be anticlockwise

D) the current induced, will be clockwise

• question_answer48) The time taken by A.C. of 50 Hz in reaching from zero to the maximum value is:

A) $50\times {{10}^{-3}}sec$

B) $5\times {{10}^{-3}}sec$

C) $1\times {{10}^{-3}}sec$

D) $2\times {{10}^{-3}}sec$

• question_answer49) The ratio of the secondary to the primary turns in a transformer is 3 : 2 and the output power is P. Neglecting all power losses, the input power must be:

A) F/2

B) P

C) 2P/3

D) 3P/2

• question_answer50) The material used for permanent magnet has:

A) low retentivity, high coercivity

B) high retentivity, low coercivity

C) high retentivity, high coercivity

D) low retentivity, low coercivity

• question_answer51) A particle of mass M at rest decays into two masses ${{m}_{1}}$and ${{m}_{2}}$with non zero velocities. The ratio of de-Broglie wavelengths of the particles $\frac{{{\lambda }_{1}}}{{{\lambda }_{2}}}$is:

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

B) $\frac{{{m}_{1}}}{{{m}_{2}}}$

C) $\frac{\sqrt{{{m}_{1}}}}{\sqrt{{{m}_{2}}}}$

D) 1 : 1

• question_answer52) For an electron in the second orbit of Bohrs hydrogen atom, the moment of linear momentum is:

A) $\pi h$

B) $2\pi h$

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

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

• question_answer53) If elements with principal quantum number n > 4 were not allowed in nature, the number of possible elements would have been:

A) 32

B) 60

C) 64

D) 4

• question_answer54) In photoelectric effect, the number of electrons ejected per second is:

A) proportional to the wavelength of light

B) proportional to the intensity of light

C) proportional to the work function of the metal

D) proportional to the frequency of light

• question_answer55) Half life of a radioactive substance is 20 minutes. The time between 20% and 80% decay will be:

A) 40 minutes

B) 20 minutes

C) 25 minutes

D) 30 minutes

• question_answer56) A hypothetical radioactive nucleus decays according to the following series $_{72}{{A}^{180}}\xrightarrow{\alpha }{{A}_{1}}\xrightarrow{{{\beta }^{-}}}{{A}_{2}}\xrightarrow{\alpha }{{A}_{3}}\xrightarrow{\gamma }{{A}_{4}}$ If the mass number and atomic number of A are respectively 180 and 72. Then the atomic number and mass number of A will respectively be:

A) 69, 171

B) 70, 172

C) 68, 172

D) 69, 172

• question_answer57) Nucleus A is converted into C through the following reactions: $A\xrightarrow[{}]{{}}B+\alpha$ [$\alpha$- alpha particle $B\xrightarrow[{}]{{}}C+2\beta$ $\beta$- electron] then:

A) A and B are isotopes

B) A and C are isobars

C) A and B are isobars

D) A and C are isotopes

• question_answer58) If $m,\text{ }{{m}_{n}}$and ${{m}_{p}}$are the masses of $_{Z}{{X}^{A}}$nucleus, neutron and proton respectively:

A) $m=(A-Z){{m}_{n}}+Z{{m}_{p}}$

B) $m<(A-Z){{m}_{n}}+Z{{m}_{p}}$

C) $m>(A-Z){{m}_{n}}+Z{{m}_{p}}$

D) $m=(A-Z){{m}_{p}}+Z{{m}_{n}}$

• question_answer59) The electrical circuit used to get smooth D.C output from a rectifier circuit is called:

A) filter

B) oscillator

C) logic gates

D) amplifier

• question_answer60) In the case of constants a and p of a transistor:

A) $\alpha =\beta$

B) $\beta <1,\alpha >1$

C) $\alpha \beta =1$

D) $\beta >1,\alpha <1$

• question_answer61) A colourless crystalline salt x is soluble in dilute $HCl$. On adding $NaOH$ solution, it gives a white precipitate which is insoluble in excess of $NaOH$. x is:

A) $A{{l}_{2}}{{(S{{O}_{4}})}_{3}}$

B) $ZnS{{O}_{4}}$

C) $MgS{{O}_{4}}$

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

• question_answer62) Which metal is used to make alloy steel for armour plates, safes and helmets?

A) $Al$

B) $Mn$

C) $Cr$

D) $Pb$

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

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

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

D) $C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{3}}$

• question_answer64) A gaseous carbon compound is soluble in dilute $HCl$. The solution on treating with NaN02 gives off nitrogen leaving behind a solution which smells of wood spirit. The carbon compound is:

A) $HCHO$

B) $CO$

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

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

• question_answer65) Which of the following statements is incorrect regarding benzyl chloride?

A) It gives white precipitate with alcoholic $AgN{{O}_{3}}$

B) It is an aromatic compound with substitution in the side chain

C) It undergoes nucleophilic substitution reaction

D) It is less reactive than vinyl chloride

• question_answer66) Enthalpy of formation of $HF$ and $HCl$ are $-161kJ$and $-92kJ$respectively which of the following statements is incorrect?

A) $HCl$ is more stable than HP

B) $HF$ and $HCl$ are exothermic compounds

C) The affinity of fluorine to hydrogen is greater than the affinity of chlorine to hydrogen

D) $HF$ is more stable than $HCl$

• question_answer67) Heat liberated with $100ml$of $1N\text{ }NaOH$is neutralised by $300ml$of IN $HCl$:

A) $11.56kJ$

B) $5.73kJ$

C) $22.92kJ$

D) $17.19kJ$

• question_answer68) For a reaction $A+B\xrightarrow{{}}C+D,$, if concentration of A is doubled without altering that of B, rate doubles. If concentration of B is increased nine times without altering that of A, rate triples. Order of the reaction is:

A) $2$

B) $1$

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

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

• question_answer69) In Goldschmidt aluminothermic process, thermite contains:

A) 3 parts of $A{{l}_{2}}{{O}_{3}}$and 4 parts of $Al$.

B) 3 parts of $F{{e}_{2}}{{O}_{3}}$and 2 parts of $Al$

C) 3 parts of $F{{e}_{2}}{{O}_{3}}$ and 1 part of $Al$

D) 1 part of $F{{e}_{2}}{{O}_{3}}$ and 1 part of $Al$

• question_answer70) The structure of orthophosphoric acid is:

A) $H-O-\underset{H}{\mathop{\overset{O}{\mathop{\overset{\uparrow }{\mathop{\underset{|}{\mathop{\underset{O}{\mathop{\underset{|}{\mathop{P}}\,}}\,}}\,}}\,}}\,}}\,-O-H$

B) $O\leftarrow \underset{H}{\mathop{\overset{H}{\mathop{\overset{|}{\mathop{\underset{\begin{smallmatrix} | \\ O \\ | \end{smallmatrix}}{\mathop{P}}\,}}\,}}\,}}\,-O-H$

C) $O\leftarrow \underset{H}{\mathop{\overset{H}{\mathop{\overset{|}{\mathop{\underset{|}{\mathop{P}}\,}}\,}}\,}}\,-O-H$

D) $H-\overset{O}{\mathop{\overset{|}{\mathop{OP}}\,}}\,=O$

• question_answer71) A galvanic cell is constructed using the redox reaction,$\frac{1}{2}{{H}_{2}}(g)+AgCl(s){{H}^{+}}(aq)+C{{l}^{-}}(aq)+Ag(s)$ it is represented as:

A) $Pt|{{H}_{2}}(g)|HCl(sol.n)||AgN{{O}_{3}}(sol.n)|Ag$

B) $Ag|AgCl(s)|KCl(sol.n)|HCl(sol.n),{{H}_{2}}(g)Pt$

C) $Pt|{{H}_{2}}(g)|KCl(sol.n)||AgCl(s)|Ag$

D) $Pt|{{H}_{2}}(g),HCl(sol.n)||AgCl(s)|Ag$

• question_answer72) Same amount of electric current is passed through solutions of $AgN{{O}_{3}}$ and $HCl$, If 1.08 g of silver is obtained in the first case, the amount of hydrogen liberated at S.T.P. in the second case is:

A) $224c{{m}^{3}}$

B) $1.008g$

C) $112c{{m}^{3}}$

D) $22400c{{m}^{3}}$

• question_answer73) The flame colours of metal ions are due to:

A) Frenkel defect

B) Schottky defect

C) Metal deficiency defect

D) Metal excess defect

• question_answer74) The order of reactivities of methyl halides in the formation of Grignard reagent is:

A) $C{{H}_{3}}I<C{{H}_{3}}Br>C{{H}_{3}}Cl$

B) $C{{H}_{3}}Cl>C{{H}_{3}}Br>C{{H}_{3}}I$

C) $C{{H}_{3}}Br>C{{H}_{3}}Cl>C{{H}_{3}}I$

D) $C{{H}_{3}}Br>C{{H}_{3}}I>C{{H}_{3}}Cl$

• question_answer75) The reaction of an organic compound with ammonia followed by nitration of the product gives a powerful explosive, called RDX. The organic compound is:

A) phenol

B) toluene

C) glycerine

D) formaldehyde

• question_answer76) A signature, written in carbon pencil weighs 1 mg. What is the number of carbon atoms present in the signature?

A) $5.02\times {{10}^{23}}$

B) $5.02\times {{10}^{20}}$

C) $6.02\times {{10}^{20}}$

D) $0.502\times {{10}^{20}}$

• question_answer77) $N{{H}_{3}}$ and $HCl$ gas are introduced simultaneously from the two ends of a long tube. A white ring of $N{{H}_{4}}Cl$ appears first:

A) nearer to the $HCl$ end

B) at the centre of the tube

C) throughout the tube

D) nearer to the $N{{H}_{3}}$ end

• question_answer78) A gas formed by the action of alcoholic $KOH$on ethyl iodide, decolourises alkaline $KMn{{O}_{4}}$. The gas is:

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

B) $C{{H}_{4}}$

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

D) ${{C}_{2}}{{H}_{4}}$

• question_answer79) Which of the following is not a characteristic of chemisorption?

A) $\Delta H$ is of the order of 400 kJ

C) Adsorption may be multimolecular layer

• question_answer80) The concentration of electrolyte required to coagulate a given amount of $A{{s}_{2}}{{S}_{3}}$ sol. is minimum in the case of:

A) magnesium nitrate

B) potassium nitrate

C) potassium sulphate

D) Aluminium nitrate

• question_answer81) Identify the organic compound which, on heating with strong solution of $NaOH$, partly converted into an acid salt and partly into alcohol:

A) Benzyl alcohol

B) Acetaldehyde

C) Acetone

D) Benzaldehyde

• question_answer82) The process by which synthesis of protein takes place based on the genetic information present in m-RNA is called:

A) translation

B) transcription

C) replication

D) messenger hypothesis

• question_answer83) The enthalpies of formation of $A{{l}_{2}}{{O}_{3}}$ and $C{{r}_{2}}{{O}_{3}}$ are $-1596kJ$and $-1134kJ$ respectively. $\Delta H$ for the reaction, $2Al+C{{r}_{2}}{{O}_{3}}\xrightarrow{{}}2Cr+A{{l}_{2}}{{O}_{3}}$ is:

A) $-2730kJ$

B) $-462kJ$

C) $-1365kJ$

D) $+2730kJ$

• question_answer84) The gaseous reaction $A+B\rightleftharpoons 2C+D+Q$ is most favoured at:

A) low temperature and high pressure

B) high temperature and high pressure

C) high temperature and low pressure

D) low temperature and low pressure

• question_answer85) Temperature coefficient of a reaction is 2. When temperature is increased from ${{30}^{o}}C$to ${{100}^{o}}C$, rate of the reaction increases by:

A) 128 times

B) 100 times

C) 500 times

D) 250 times

• question_answer86) The volume of water to be added to $\frac{N}{2}HCl$to prepare $500c{{m}^{3}}$of solution $\frac{N}{10}$is:

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

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

C) $45c{{m}^{3}}$

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

• question_answer87) The equivalent weight of a certain trivalent element is 20. Molecular weight of its oxide is:

A) $152$

B) $56$

C) $168$

D) $68$

• question_answer88) Identify the reaction that doesnt take place during the smelting process of copper extraction:

A) $2FeS+3{{O}_{2}}\xrightarrow{{}}2FeO+2S{{O}_{2}}\uparrow$

B) $C{{u}_{2}}O+FeS\xrightarrow{{}}C{{u}_{2}}S+FeO$

C) $2C{{u}_{2}}S+3{{O}_{2}}\xrightarrow{{}}2C{{u}_{2}}O+2S{{O}_{2}}\uparrow$

D) $FeO+Si{{O}_{2}}\xrightarrow{{}}FeSi{{O}_{3}}$

• question_answer89) Pick out the complex compound in which the central metal atom obeys BAN rule strictly:

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

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

C) $[Cr{{({{H}_{2}}O)}_{6}}]C{{l}_{3}}$

D) $[Cu{{(N{{H}_{3}})}_{4}}]S{{O}_{4}}$

• question_answer90) In a reversible reaction, the catalyst :

A) increases the activation energy of the backward reaction

B) increases the activation energy of the forward reaction

C) decreases the activation energy of both, forward and backward reaction

D) decreases the activation energy of forward reaction

• question_answer91) Solubility product of a salt AB is $1\times {{10}^{-8}}$ in a solution in which concentration of A is ${{10}^{-3}}M$. The salt will precipitate when the concentration of B becomes more than:

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

B) ${{10}^{-7}}M$

C) ${{10}^{-6}}M$

D) ${{10}^{-5}}M$

• question_answer92) The standard reduction potentials of $Zn$ an$Ag$ in water at 298 K are, $Z{{n}^{+2}}+2{{e}^{-}}Zn;$ ${{E}^{o}}=-0.76V$ and $A{{g}^{+}}+{{e}^{-}}Ag;$ ${{E}^{o}}=+0.80V$. Which of the following reactions take place?

A) $Z{{n}^{+2}}(aq)+2Ag(s)\xrightarrow{{}}2A{{g}^{+}}(aq)+Zn(s)$

B) $Zn(s)+2A{{g}^{+}}(aq)\xrightarrow{{}}Z{{n}^{+2}}(aq)+2Ag(s)$

C) $Z{{n}^{+2}}(aq)+A{{g}^{+}}(aq)\xrightarrow{{}}Zn(s)+Ag(s)$

D) $Zn(s)+Ag(s)\xrightarrow{{}}Z{{n}^{+2}}(aq)+A{{g}^{+}}(aq)$

• question_answer93) The ratio of cationic radius to anionic radius in an ionic crystal is greater than$0.732$. Its co-ordination number is:

A) $6$

B) $8$

C) $1$

D) $4$

• question_answer94) Dacron is obtained by the condensation polymerisation of:

A) Dimethyl terephthalate and ethylene glycol

B) Terephthalic acid and formaldehyde

C) Phenol and phthalic acid

D) Phenol and formaldehyde

• question_answer95) 4-chloro-3, 5-dimethyl phenol is called :

A) Chloramphenicol

B) Paracetamol

C) Barbital

D) Dettol

• question_answer96) The percentage s-character of the hybrid orbitals in methane, ethene and ethyne are respectively:

A) $25,33,50$

B) $25,50,75$

C) $50,75,100$

D) $10,20,40$

• question_answer97) In the manufacture of sulphuric acid by contact process, Tyndall box is used to:

A) filter dust particles

B) remove impurities

C) convert $S{{O}_{2}}$ to $S{{O}_{3}}$

D) test the presence of dust particles

• question_answer98) The pH value of gastric juice in human stomach is about 1.8 and in the small intestine it is about 7.8. The $_{p}{{K}_{a}}$ value of aspirin is 3.5. Aspirin will be

A) completely ionised in the small intestine and in the stomach

B) unionised in the small intestine and in the stomach

C) ionised in the small intestine and almost unionised in the stomach

D) ionised in the stomach and almost unionised in the small intestine

• question_answer99) The number of $\alpha$ and $\beta$particles emitted during the transformation of $_{90}T{{h}^{232}}$to $_{82}P{{b}^{208}}$are respectively:

A) $4,2$

B) $2,2$

C) $8,6$

D) $6,4$

• question_answer100) When chlorine is passed through warm benzene in presence of the sunlight, the product obtained is

A) Benzotrichloride

B) Chlorobenzene

C) Gammexane

D) DDT

• question_answer101) Ethyl benzoate reacts with $PC{{l}_{5}}$ to give:

A) ${{C}_{2}}{{H}_{5}}Cl+{{C}_{6}}{{H}_{5}}COCl+POC{{l}_{3}}+HCl$

B) ${{C}_{2}}{{H}_{5}}Cl+{{C}_{6}}{{H}_{5}}COCl+POC{{l}_{3}}$

C) $C{{H}_{3}}COCl+{{C}_{6}}{{H}_{5}}COCl+POC{{l}_{3}}$

D) ${{C}_{2}}{{H}_{5}}Cl+{{C}_{6}}{{H}_{5}}COOH+POC{{l}_{5}}$

• question_answer102) Pick out the statement which is not relevant in the discussion of colloids:

A) Sodium aluminum silicate is used in the softening of hard water

B) Potash alum is used in shaving rounds and as a styptic in medicine

C) Artificial rain is caused by throwing electrified sand on the clouds from an aeroplane

D) Deltas are formed at a place where the river pours its water into the sea

• question_answer103) A wooden box excavated from Indus valley had an activity of $1.18\times {{10}^{13}}$ disintegration per minute per gm. Of carbon. What is the approximate age of this civilisation?

A) $4000years$

B) $5700years$

C) $8100years$

D) $6000years$

• question_answer104) For a reaction if ${{K}_{p}}>{{K}_{c}}$, the forward reaction is favoured by:

A) low pressure

B) high pressure

C) high temperature

D) low temperature

• question_answer105) In a lime kiln, to get higher yield of $C{{O}_{2}}$, the measure that can be taken is:

A) to remove $CaO$

B) to add more $CaC{{O}_{3}}$

C) to maintain high temperature

D) to pump out $C{{O}_{2}}$

• question_answer106) What is the volume of 20 volume ${{H}_{2}}{{O}_{2}}$ required to get 5000 cm of oxygen at S.T.P?

A) $250c{{m}^{3}}$

B) $50c{{m}^{3}}$

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

D) $125c{{m}^{3}}$

• question_answer107) The IUPAC name of ${{(C{{H}_{3}})}_{3}}C-CH=C{{H}_{2}}$is :

A) 1, 1, l-trimethyl-2-propene

B) 3, 3, 3-trimethyl-2-propene

C) 2, 2-dimethyl-3-butene

D) 3, 3-dimethyl-l-butene

• question_answer108) Railway wagon axles are made by heating iron rods embedded in charcoal powder. This process is known as:

A) Tempering

B) Case hardening

C) Sherardising

D) Annealing

• question_answer109) Thomas slag is ...

A) $CaSi{{O}_{3}}$

B) $C{{a}_{3}}{{(P{{O}_{4}})}_{2}}$

C) $MnSi{{O}_{3}}$

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

• question_answer110) Urea is preferred to ammonium sulphate as a nitrogenous fertilizer because:

A) it is more soluble in water

B) it is cheaper than ammonium sulphate

C) it is quite stable

D) it does not cause acidity in the soil

• question_answer111) Two gas cylinders having same capacity have been filled with 44 g of ${{H}_{2}}$ and 44 g of $C{{O}_{2}}$ respectively. If the pressure in $C{{O}_{2}}$ cylinder is 1 atmosphere at a particular temperature, the pressure in the hydrogen cylinder at the same temperature is:

A) 2 atmosphere

B) 1 atmosphere

C) 22 atmosphere

D) 44 atmosphere

• question_answer112) Angular momentum of an electron in the nth orbit of hydrogen atom is given by:

A) $\frac{nh}{2\pi }$

B) $nh$

C) $\frac{2\pi }{nh}$

D) $\frac{\pi }{2nh}$

• question_answer113) The element with atomic number 36 belongs to ......... block in the periodic table:

A) $p$

B) $s$

C) $f$

D) $d$

• question_answer114) The function of $AlC{{l}_{3}}$ in Friedel-Crafts reaction is:

A) to absorb $HCl$

B) to absorb water

C) to produce nucleophile

D) to produce electrophile

• question_answer115) An important reaction of acetone is auto condensation in presence of , concentrated sulphuric acid to give the aromatic compound......

A) mesitylene

B) mesityl oxide

C) trioxan

D) phorone

• question_answer116) Kinetic energy of one mole of an ideal gas at 300 K in kJ is:

A) $3.74$

B) $348$

C) $34.8$

D) $3.48$

• question_answer117) The tripe tide hormone present in most living cells is:

A) glutathione

B) glutamine

C) oxytocin

D) ptyalin

• question_answer118) Phenol $\xrightarrow{NaN{{O}_{2}}|{{H}_{2}}S{{O}_{4}}}B\xrightarrow{{{H}_{2}}O}C\xrightarrow{NaOH}D$ name of the reaction is:

A) Liebermanns reaction

B) Phthalein fusion test

C) Reimer Tiemann reaction

D) Schotten-Baumann reaction

• question_answer119) Energy is stored in our body in the form of:

A) ATP

C) Fats

D) Carbohydrates

• question_answer120) An organic compound answers Molischs test as well as Benedicts test. But it does not answer Scliwanoffs test. Most probably, it is:

A) sucrose

B) protein

C) fructose

D) maltose

• question_answer121) The two chromatids of a metaphase chromosome represent:

A) replicated chromosomes to be separated at anaphase

B) homologous chromosomes of a diploid set

C) non-homologous chromosomes joined at the centromere

D) maternal and paternal chromosomes joined at the centromere

A) nucleoside of DNA

B) nucleotide of DNA

C) nucleoside of RNA

D) nucleotide of RNA

• question_answer123) The source of energy for non-biological nitrogen fixation is:

A) by ionizing events such as lightning and effect of cosmic rays

B) ferredoxin enzyme and nitrogenase

C) by reduction of proteins to ammonia

D) by oxidation of ammonia to protein

• question_answer124) A single amino acid is often coded by more than one triplet code. In most of the cases the first two bases are the same but the third base is different. This feature of the genetic code is called:

A) universality

B) non - overlapping and commaless

C) redundancy and degeneracy

D) non - ambiguity

A) oxygenated blood is pumped into the pulmonary artery and deoxygenated blood is pumped into the artery

B) oxygenated blood is pumped into the aorta and deoxygenated blood is pumped into the pulmonary vein

C) oxygenated blood is pumped into the pulmonary vein and deoxygenated blood is pumped into the pulmonary artery

D) oxygenated blood is pumped into the aorta and deoxygenated blood pumped into the pulmonary artery

• question_answer126) Which is the correct sequence of the air passage in man?

A) Nasal cavity pharynx trachea larynx bronchi bronchioles alveoli

B) Nasal cavity larynx pharynx trachea bronchi bronchioles alveoli

C) Nasal cavity pharynx larynx trachea bronchi bronchioles alveoli

D) Nasal cavity larynx bronchi pharynx trachea bronchioles alveoli

• question_answer127) Which one of the following statements is correct with regard to the principle of safe blood transfusion?

A) The donors red blood corpuscles should not contain antibodies against the recipients serum

B) The recipients serum should not contain antigens against the donors antibodies

C) The recipients serum should not contain the antibodies against the red blood corpuscles of the donor

D) The recipients red blood corpuscles should not contain antibodies against the donors antigen

• question_answer128) The formation of erythrocytes in foetus takes place in:

A) liver and spleen

B) red bone marrow

C) blood plasma

D) sarcoplasm

• question_answer129) A decrease in photosynthetic rate with increased availability of oxygen is called:

A) Warburg effect

B) Richmond Lang effect

C) Blackmans law of limiting factors

D) Emerson enhancement effect

• question_answer130) The correct sequence of meanings from inner to outer side is:

A) duramater $\to$arachnoid membrane $\to$piamater

B) duramater $\to$piamater $\to$arachnoid membrane

C) piamater $\to$arachnoid membrane $\to$duramater

D) arachnoid membrane $\to$duramater $\to$piamater

• question_answer131) In a germinating seed when protein is aerobically oxidized, the R.Q. value will be:

A) more than one

B) less than one

C) one

D) zero

• question_answer132) Match the name of the cells given under Column-I with the name of organs/parts in which they occur, given under Column-II. Choose the answer which gives correct combination of the alphabets of the two columns.

 Column-I (Cells) Column-II (Parts/Organs) A. Van Kupffer cells p. islets of Langerhans B. $\beta$- cells q. liver sinusoids C. Brush border cells r. thyroid gland D. Paneth cells s. proximal convoluted tubule t. small intestine

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

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

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

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

• question_answer133) Match the components of Lac Operon of E. coli given under Column- I with their function listed in Column- II. Choose the answer with correct combination of alphabets of the two columns.

 Column-I (Components of Lac Operon) Column-II (Function) A. Structural gene p. binding site for represser protein B. Operator gene q. codes for represser protein C. Promoter gene r. induces lactose transport from the medium D. Regulator gene s. codes for enzyme proteins t. binding site for RNA- polymerase

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

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

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

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

• question_answer134) Pons Varolii connects the:

A) two cerebral hemispheres

B) two lobes of cerebellum

C) cerebrum and cerebellum

D) spinal cord with the brain

• question_answer135) Three children in a family have blood types O, AB and B respectively. What are the genotypes of their parents?

A) ${{I}^{A}}i$and ${{I}^{B}}i~~~~~~~~~~$

B) ${{I}^{A}}{{I}^{B}}$and $ii$

C) ${{I}^{B}}{{I}^{B}}$and${{A}^{A}}{{I}^{A}}$

D) ${{I}^{A}}{{I}^{A}}$and ${{I}^{B}}i$

• question_answer136) Match the items given in Column- I with those listed in Column- II. Choose the answer with correct combination of alphabets of the two columns.

 Column-I (Characters) Column-II (Genotypes) A. Monohybrid cross p. T and t B. Test cross q. TT C. Alleles r. Tt $\times$ Tt D. Homozygous tall s. tt t. Tt $\times$ tt

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

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

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

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

• question_answer137) Match the types of WBC listed in Column- I with the shape of nucleus given under Column- II. Choose the answer which gives the correct combination of alphabets of the two columns.

 Column-I (Type of WBC) Column-II (Shape of nucleus) A. Neutrophils p. kidney - shaped B. Eosinophils q. S - shaped C. Basophils r. 3 to 5 lobes D. Monocytes s. 2 lobes t. disc- shaped

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

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

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

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

• question_answer138) The Christmas disease patient lacks antihaemophilic:

A) homogentisic acid oxidase

B) factor VIII

C) factor XI

D) factor IX

• question_answer139) In which of the following tissue is the matrix not a product of synthesis of its cells?

A) Vascular tissue

B) Osseus tissue

C) Loose connective tissue

• question_answer140) An X-ray of the lower abdomen shows a shadown in the region of the ureter suspected to be an ureteric calculus. A possible clinical symptom would be:

A) Acute Renal Failure (ARF)

B) Anuria and haematuria

C) Motor aphasia

D) Chronic Renal Failure (CRF)

• question_answer141) In spermatogenesis the phase of maturation involves:

A) the growth of spermatogonia into primary spermatocyte

B) the formation of spermatogonia from gonocytes through mitosis

C) the formation of spermatids from primary spermatocytes through meiosis

D) the formation of oogonia from the spermatocytes through meiosis

• question_answer142) The concept of genetic drift was introduced by:

A) Sewall Wright

B) Hardy Weinberg

C) Julian Huxley

D) G.G. Simpson

• question_answer143) Match the phytohormones given in Column- I with their functions given in Column- II. Choose the answer with correct combination of alphabets.

 Column-I (Phytohormones) Column-II (Functions) A. Auxins p. breaking seed dormancy B. Gibberelines q. inducting fruit ripening C. Cytokinins r. formation of abscission layer D. Ethylene s. root initiation t. Chloroplast development and chlorophyll synthesis

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

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

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

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

• question_answer144) Human blood maintains homeostasis in the internal environment of the body by:

A) replenishment of nutrients and oxygen and elimination of metabolic wastes from the extracellular fluid

B) replenishment of oxygen and elimination of $C{{O}_{2}}$

C) maintenance of blood sugar level and conversion of amino acids into urea and destruction of wornout RBCs

D) maintenance of ion concentration in the blood and body fluids by eliminating nitrogenous wastes

• question_answer145) The lower most layer of atmosphere in which man and other living organisms exist, is called:

A) stratosphere

B) mesosphere

C) thermosphere

D) trophosphere

• question_answer146) Match the type of cells listed under Column- I and their secretions given under Column- II. Choose the answer which gives the correct combination of the alphabets of the two columns:

 Column-I (Type of cells) Column-II (Secretions) A. Peptic cells p. mucus B. Oxyntic cells q. Alkaline fluid C. Goblet cells r. Pro-enzymes s. HCL

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

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

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

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

• question_answer147) The patient in the picture possibly depicts an instance of:

A) myxoedema

B) acromegaly

C) cretinisms

D) simple goiter

• question_answer148) Every cell of the body contributes gemmules to the germ cells and so shares in the transmission of inherited characters. This theory is known as:

A) theory of inheritance of acquired characteristics

B) theory of germplasm

C) theory of pangenesis

D) theory of mutations

• question_answer149) The enzymes which are commonly used in genetic engineering:

A) restriction endonuclease and polymerase

B) endonuclease and ligase

C) restriction endonuclease and ligase

D) ligase and polymerase

• question_answer150) A branch of Ecology which is concerned with the study of individual species at all stages of its life cycle in relation to environment is called:

A) synecology

B) ecological niche

C) reproductive ecology

D) autecology

• question_answer151) The organization which has been published the Red Data Book is:

A) International Union for Conservation of Nature and Natural Resources

B) National Environmental Engineering Research Institute

C) National Wild life Action Plan

D) Conservation on International Trade in Endangered species of Wild Fauna and Flora

• question_answer152) The valves which allow blood to flow from the ventricles into the arteries and not in the opposite direction are:

A) A.V. valve (Atrio ventricular valve) and semilunar valve

B) bicuspid and tricuspid valve

C) semilunar and tricuspid valve

D) aortic and mitral valve

• question_answer153) The absorption of glycerol, fatty acids and monoglycerides takes place by the:

A) lymph vessels within the villi

B) wall of the stomach

C) colon

D) capillaries within the villi

• question_answer154) Which of the following represent bile salts?

A) Haemoglobin and biliverdin

B) Bilirubin and biliverdin

C) Bilirubin and haemoglobin

D) Sodium glycocholate and taurocholate

• question_answer155) The experimental set up shown in the adjacent diagram is for:

A) the demonstration of development of suction force due to transpiration

B) measuring the rate of transpiration

C) the demonstration of ascent of sap.

D) the demonstration of anaerobic respiration

• question_answer156) During expiration the diaphragm becomes:

A) dome - shaped

B) oblique

C) normal

D) flattened

• question_answer157) Match the breeds of cattle given under Column- I with the place of their origin listed under Column-II. Choose the answer which gives the correct combination of alphabets of the two columns.

 Column-I (Cattle breeds) Column-II (Place of origin) A. Amrithmahal p. Hassan and Tumkur districts B. Ongole q. Coimbatore district C. Khillari r. Nellore and Guntur districts D. Hallikar s. Chikmangalore and Chitradurga districts t. Satara and Sholapur districts

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

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

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

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

• question_answer158) The first case of IVF - ET technique success, was reported by:

A) Louis Joy Brown and Banting Best

B) Patrick Steptoe and Robert Edward

C) Robert Steptoe and Gilbert Brown

D) Baylis and Starling Taylor

• question_answer159) Which of the following statements is true?

A) All chordates are vertebrates

B) All vertebrates are chordates

C) Invertebrates possess a tubular nerve cord

D) Non-chordates have a vertebral

• question_answer160) Which are the primary constituent of photochemical smog?

A) Carbon dioxide and $N{{O}_{2}}$

B) Hydrocarbons and $CFCs$

C) $S{{O}_{2}}$ and $CO$

D) $N{{O}_{2}}$ and hydrocarbons

• question_answer161) Match the abnormalities given under Column- I with the symptoms, listed under Column- II. Choose the answer which gives the correct combination of alphabets of the two columns.

 Column-I (Abnormalities) Column-II (Symptoms) A. Hemiplegia p. formation of internal blood clot B. Cerebral thrombosis q. sudden insensibility accompanies by seizures C. Epilepsy r. speech defect D. Aphasia s. loss of function of one half of body E. t. inability to recognize objects

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

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

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

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

• question_answer162) Loss of forests, urbanization, increasing pollution are all due to:

A) global warming

B) green house effect

C) population explosion

D) ozone depletion

• question_answer163) In a comparative study of grassland ecosystem and pond ecosystem it may be observed that:

A) the biotic components are almost similar

B) the abiotic components are almost column

C) primary and secondary consumers are similar

D) both biotic and abiotic components are different

• question_answer164) The basic feature of typical C4 plants showing Kranz Anatomy is:

A) the presence of chloroplasts in bundle sheath cells

B) the presence of chloroplasts in mesophyll and epidermal cells

C) the presence of typical chloroplasts with well-formed grana in bundle sheath cells and rudimentary chloroplasts in the mesophyll cells

D) the presence of rudimentary chloroplasts in bundle sheath cells and typical chloroplasts with well formed grana is mesophyll cells

• question_answer165) Which of the following is the Pribnow box?

A) 5 TATAAT 3

B) 5 TAATTA 3

C) 5 AATAAT 3

D) 5 ATATTA 3

• question_answer166) Match the branches of Biology listed in Column- I with the areas of study listed in Column- II. Choose the answer which gives the correct combination of alphabets of the columns.

 Column-I (Branches of biology) Column-II (Area of study) A Helminthology p. study of insects B Entomology q. study of fungi C Ornithology r. study of algae D Phycology s. study of birds t. study of worms

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

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

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

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

• question_answer167) The post mitotic phase of the cell in which active synthesis of RNA and proteins takes place is:

A) S-phase

B) amitotic phase

C) Gz-phase

D) Gi-phase

• question_answer168) Hodgkins disease is :

A) cancer of the lymphoid tissue

B) cancer of the mammary gland

C) cancer of the WBC

D) cancer of the liver

• question_answer169) Which one of the following is a monocarpic tree?

A) Bomssus flabellifer

B) Corypha umbraculifera

C) Phoenix dactylifera

D) Elaeis guineensis

• question_answer170) Basidiospores are produced by :

A) Yeasts

B) Diatoms

C) Agaricus

D) Bacteria

• question_answer171) Sertoli cells are found :

A) between the seminiferous tubules

B) in the germinal epithelium of ovary

C) in the upper part of the fallopian tube

D) in the germinal epithelium of the seminiferous tubules

• question_answer172) Gymnosperms are naked seeded plants because :

A) there is no fruit

B) there is no ovule

C) there is no fertilization

D) there is no ovary and fruit

• question_answer173) The stem of grasses and related plants elongate by the activity of :

A) lateral meristem

B) apical meristem

C) both apical and intercalary meristem

D) intercalary meristem

• question_answer174) Green leaf-like modified aerial stems/branches with a single internodes are called :

B) phyllodes

C) bulbils

• question_answer175) In the following diagram of a leg of cockroach 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 = coxa, B = tibia, C = tarsus, D =femur, ? = trochanter

B) A = coxa, B = femur, C = trochanter, D = tarsus, E = tibia

C) A = coxa, B = tarsus, C = femur, D = tibia, E = trochanter

D) A = coxa, B = trochanter, C = femur, D = tibia, E = tarsus

• question_answer176) When a lysosome fuses with a phagosome, it results in the formation of:

A) secondary lysosomes

B) primary lysosome

C) autophagic vacuole

D) residual body

A) homochlamydeous unisexual and hypogynous

B) homochlamydeous bisexual and epigynous

C) dichlamydeous bisexual and hypogynous

D) heterochlamydeous bisexual and epigynous

• question_answer178) Select the correct combination of inflorescences :

A) simple raceme, corymb, umbel, simple cyme

B) simple raceme, spadix, spike, catkin

C) cyathium, verticillaster, hypanthodium, catkin

D) capitulum, globose head, verticillaster, catkin

• question_answer179) Which of the following statements is correct with reference to the flowers of family Solanaceae?

A) Pentamerous, actinomorphic, unisexual, hypogynous

B) Pentamerous, zygomorphic, bisexual, epigynous

C) Pentamerous, bisexual, actinomorphic, hypogynous

D) Trimerous, actinomorphic, bisexual, hypogynous

• question_answer180) Match the various classes of animals given under Column-I with the examples listed in Column-II. Choose the answer which gives the correct combination of alphabets of the two columns.

 Column-I (Classes) Column-II (Examples) A. Polychaeta p. Scorpion B. Trematoda q. Pila C. Arachnida r. liver fluke D. Gastropoda s. Nereis t. Star fish

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

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

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

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