# Solved papers for BCECE Medical BCECE Medical Solved Papers-2002

### done BCECE Medical Solved Papers-2002

• question_answer1) A body is vibrating in simple harmonic motion with an amplitude of 0.06 m and frequency of 15 Hz. The maximum velocity and acceleration of the body is:

A) 9.80 m/s and $9.03\times {{10}^{2}}m/{{s}^{2}}$

B) 8.90 m/s and $8.21\times {{10}^{2}}m/{{s}^{2}}$

C) 6.82 m/s and $7.62\times {{10}^{2}}m/{{s}^{2}}$

D) 5.65 m/s and $5.32\times {{10}^{2}}m/{{s}^{2}}$

• question_answer2) A motor cycle is travelling on a curved track of radius 500 m. If the coefficient of friction between tyres and road is 0.5 with$g=10\,\,m/{{s}^{2}}$, what should be the maximum speed to avoid skidding?

A) 10 m/s

B) 50 m/s

C) 250 m/s

D) 500 m/s

• question_answer3) If the equation of motion of standing wave is $y=0.3\sin \,(314\,t-1.57\,x)$,the velocity of standing wave is :

A) 400 unit

B) 250 unit

C) 200 unit

D) 150 unit

• question_answer4) On producing the waves of frequency 1000 Hz in a Kundts tube, the total distance between 6 successive nodes is 85 cm. Speed of sound in the gas filled in the tube is :

A) 300 m/s

B) 350 m/s

C) 340 m/s

D) 330 m/s

• question_answer5) A spring is vibrating with frequency under same mass. If it is cut into two equal pieces and same mass is suspended, then the new frequency will be :

A) $n\sqrt{2}$

B) $\frac{n}{\sqrt{2}}$

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

D) n

• question_answer6) Diamagnetic substances are :

A) strongly repelled by magnets

B) feebly repelled by magnets

C) feebly attracted by magnets

D) strongly attracted by magnets

• question_answer7) The study of the effects associated with electric field at rest is known as :

A) electrostatics

B) electromagnetism

C) magnetostatics

D) none of these

• question_answer8) For driving current of 2 A for 6 min in a circuit, 1000 J of work is to be done. The emf of the source in the circuit is :

A) 1.38V

B) 1.68V

C) 2.03V

D) 3.10V

• question_answer9) A current carrying wire in the neighbourhood produces :

A) electric and magnetic fields

B) magnetic field only

C) no field

D) electric field

• question_answer10) A resonance air column of length 20cm resonates with a tuning fork of frequency 250 Hz. The speed of the air is:

A) 75 m/s

B) 150 m/s

C) 200 m/s

D) 300 m/s

• question_answer11) An iron rod of length 2 m and cross-sectional area of 50 $m{{m}^{2}}$is stretched by 0.5 mm, when a mass of 250 kg is hung from its lower end. Youngs modulus of iron rod is :

A) $19.6\times {{10}^{20}}N/{{m}^{2}}$

B) $19.6\times {{10}^{18}}N/{{m}^{2}}$

C) $19.6\times {{10}^{10}}N/{{m}^{2}}$

D) $19.6\times {{10}^{15}}N/{{m}^{2}}$

• question_answer12) Frequency of infrared wave is approximately:

A) 1018 Hz

B) 1014 Hz

C) 109 Hz

D) 1016 Hz

• question_answer13) A wire has resistance of $3.1\,\,\Omega$ at ${{30}^{o}}C$ and resistance $4.5\,\,\Omega$ at ${{100}^{o}}C$. The temperature coefficient of resistance of the wire is :

A) ${{0.0012}^{o}}{{C}^{-1}}$

B) ${{0.0024}^{o}}{{C}^{-1}}$

C) ${{0.0032}^{o}}{{C}^{-1}}$

D) ${{0.0064}^{o}}{{C}^{-1}}$

• question_answer14) If the current through $3\,\,\Omega$ resistor is 0.8 A, then potential drop through $4\,\,\Omega$ resistor is :

A) 1.2V

B) 2.6V

C) 4.8 V

D) 9.6 V

• question_answer15) The direction of the null points on the equatorial line of a bar magnet, when the north pole of the magnet is pointing to :

A) west

B) east

C) south

D) north

• question_answer16) Two batteries of emf 4 V and 8 V having the internal resistance of $1\,\,\Omega$ and $2\,\,\Omega$. respectively are connected in circuit with a resistance of $9\,\,\Omega$ as shown in a figure. The current and potential difference between the points P and Q are :

A) $\frac{1}{2}$A and 12 V

B) $\frac{1}{9}$A and 9 V

C) $\frac{1}{6}$A and 4 V

D) $\frac{1}{3}$ A and 3 V

• question_answer17) The dimensions of gravitational constant G are:

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

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

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

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

• question_answer18) A 30 g bullet initially travelling at 120 m/s penetrates 12 cm into wooden block. The average resistance exerted by the wooden block is :

A) 1800 N

B) 2000 N

C) 2200 N

D) 2850 N

• question_answer19) Angle of dip is ${{90}^{o}}$ at:

A) equator

B) middle point

C) poles

D) none of these

• question_answer20) Two magnets each of magnetic moment M are placed so as to form a cross at right angles to each other. The magnetic moment of the system will be :

A) M

B) 0.5 M

C) V2M

D) 2M

• question_answer21) Plate current will be maximum when :

A) both the grid and anode are negative

B) both the grid and anode are positive

C) grid is positive and anode is negative

D) grid is negative and anode is positive

• question_answer22) Sodium has body centered packing. Distance between two nearest atoms is 3.7 $\overset{o}{\mathop{A}}\,$. The lattice parameter is :

A) 4.9 $\overset{o}{\mathop{A}}\,$

B) 4.3 $\overset{o}{\mathop{A}}\,$

C) 3.8 $\overset{o}{\mathop{A}}\,$

D) 3.4 $\overset{o}{\mathop{A}}\,$

• question_answer23) The instrument used to measure the temperature of the source from its thermal radiation is :

A) hydrometer

B) barometer

C) thermopile

D) pyrometer

• question_answer24) Which of the following are not the transverse waves?

A) Sound waves

B) Visible light waves

C) X-rays

D) y-rays

• question_answer25) The displacement x of a particle moving along a straight line at time t is given by $x={{a}_{0}}+{{a}_{1}}\,t+{{a}_{2}}{{t}^{2}}$ The acceleration of the particle is :

A) $4\,{{a}_{2}}$

B) $2\,{{a}_{2}}$

C) $2\,{{a}_{1}}$

D) ${{a}_{2}}$

• question_answer26) A bomb is dropped from an aeroplane moving horizontally at constant speed. If air resistance is taken into consideration, then the bomb :

A) falls on earth exactly below the aeroplane

B) falls on the earth exactly behind ?e aeroplane

C) falls on the earth ahead of the aeroplane

D) flies with the aeroplane

• question_answer27) In a p -type semiconductor germanium is doped with :

A) aluminium

B) boron

C) gallium

D) all of these

• question_answer28) Boolean algebra is essentially based on :

A) numbers

B) symbol

C) logic

D) truth

• question_answer29) When a bus suddenly takes a turn, the passengers are thrown outwards because of:

A) speed of motion

B) inertia of motion

C) acceleration of motion

D) none of the above

• question_answer30) The logic behind NOR gate is that which gives :

A) high output when both inputs are high

B) low output when both inputs are low

C) high output when both inputs are low

D) none of the above

• question_answer31) How can the chromatic aberration be corrected?

A) By providing different suitable curvature to its two surfaces

B) By combining it with another lens of opposite nature

C) By reducing its aperture

D) By providing proper polishing of its two surfaces

• question_answer32) Which one of the following is not dependent on the intensity of incident photon in a photoelectric experiment?

A) Work function of the surface

B) Number of photoelectrons

C) Stopping potential

D) Amount of photoelectric current

• question_answer33) If red light and violet light rays are of focal lengths ${{f}_{R}}$ and ${{f}_{V}}$, then which one of the following is true ?

A) ${{\lambda }_{R}}\le {{\lambda }_{V}}$

B) ${{\mu }_{R}}>{{\mu }_{V}}$

C) ${{\lambda }_{R}}={{\lambda }_{V}}$

D) ${{\mu }_{R}}<\mu {{\,}_{V}}$

• question_answer34) The large scale destruction, that would be caused due to the use of nuclear weapons known as :

A) neutron reproduction factor

B) nuclear holocaust

C) thermonuclear reaction

D) none of the above

• question_answer35) If in Ramsdens eyepiece, the field lenses have focal lengths ${{f}_{1}}$ and ${{f}_{2}}$ respectively and separated by a distance d then :

A) ${{f}_{1}}=3{{f}_{2}}$ and $d={{f}_{1}}+{{f}_{2}}$

B) ${{f}_{1}}={{f}_{2}}$ and $d=\frac{2}{3}{{f}_{1}}$

C) ${{f}_{1}}=\frac{2}{3}{{f}_{2}}$ and $d=\frac{2}{3}{{f}_{1}}$

D) ${{f}_{1}}={{f}_{2}}$ and $d={{f}_{1}}+{{f}_{2}}$

• question_answer36) Huygens wave theory of light could not explain :

A) photoelectric effect

B) polarisation

C) diffraction

D) interference

• question_answer37) The rain drops are spherical in shape due to :

A) residual pressure

B) thrust on drop

C) surface tension

D) viscosity

• question_answer38) The work done in pulling up a block of wood weighing 2 kN for a length of 10 m on a smooth plane inclined at an angle of ${{15}^{o}}$ with the horizontal is :

A) 9.82 kJ

B) 8.91 kJ

C) 5.17 kJ

D) 4.36 kJ

• question_answer39) The thermions are :

A) positrons

B) photons

C) electrons

D) protons

• question_answer40) The internal resistance of cell of emf 2 V is$0.1\,\,\Omega$. It is connected to a resistance of $3.9\,\,\Omega$. The voltage across the cell is :

A) 2.71 V

B) 1.95 V

C) 1.68 V

D) 0.52 V

• question_answer41) The earth of mass 6 xl024 kg revolves around the sun with an angular velocity of $2\times {{10}^{-7}}$ rad/s. In a circular orbit of radius $1.5\times {{10}^{8}}$ km, the force exerted by the sun, on the earth is :

A) $27\times {{10}^{39}}N$

B) $36\times {{10}^{21}}N$

C) $18\times {{10}^{25}}N$

D) $6\times {{10}^{19}}N$

• question_answer42) A stone is thrown with an initial speed of 4.9 m/s from a bridge in vertically upward direction. It falls down in water after 2 s. The height of the bridge is :

A) 24.7 m

B) 19.8 m

C) 9.8m

D) 4.9m

• question_answer43) A ball of mass 150 g moving with an acceleration 20 $m/{{s}^{2}}$ is hit by a force, which acts, on it for 0.1 s. The impulsive force is:

A) 1.2 N-S

B) 0.3 N-s

C) 0.1 N-s

D) 0.5 N-s

• question_answer44) If the heat of 110 J is added to a gaseous system, whose internal energy is 40 J, then the amount of external work done is :

A) 80 J

B) 70 J

C) 115 J

D) 140 J

• question_answer45) The substance in which the magnetic moment of a single atom is not zero, is called as :

A) femmagnetism

B) paramagnedsm

C) ferromagnetism

D) diamagnetism

• question_answer46) The luminous efficiency of a lamp is 4 lumen/W and its luminous intensity is 30 Cd. The power of lamp is :

A) 60 W

B) 78 W

C) 94 W

D) 136 W

• question_answer47) The transfer ratio $\beta$ of a transistor is 50. The input resistance of the transistor when used in the common-emitter configuration is $1\,k\Omega$. The peak value of the collector AC current for an AC input voltage of 0.01 V, is :

A) 500 $\mu A$

B) 0.25 $\mu A$

C) 0.01 $\mu A$

D) 100 $\mu A$

• question_answer48) Two vectors $\vec{A}$ and $\vec{B}$ are such that $\vec{A}+\vec{B}=\vec{C}$and ${{A}^{2}}+{{B}^{2}}={{C}^{2}}$. If $\theta$ is the angle between $\vec{A}$ and $\vec{B}$ then correct statement is :

A) $\theta =\pi$

B) $\theta =\frac{2\pi }{3}$

C) $\theta =0$

D) $\theta =\frac{\pi }{2}$

• question_answer49) A rough vertical board has an acceleration a along the horizontal, so that a block of mass M pressing against it does not fall. The coefficient of friction between block and the board is:

A) $>\frac{a}{g}$

B) $<\frac{g}{a}$

C) $=\frac{a}{g}$

D) $>\frac{g}{a}$

• question_answer50) An aeroplane is moving with a horizontal velocity u at a height h. The velocity of packet dropped from it on the earths surface will be:

A) $\sqrt{{{u}^{2}}-2g\,h}$

B) $2\,g\,\,h$

C) $\sqrt{2\,g\,\,h}$

D) $\sqrt{{{u}^{2}}+2\,g\,\,h}$

• question_answer51) Which of the following having highest number of molecules?

A) $16\,g\,{{O}_{2}}$

B) $14\,g\,{{N}_{2}}$

C) $2\,g\,{{H}_{2}}$

D) $6\,g\,{{I}_{2}}$

• question_answer52) The size of isoelectronic ions depends on :

A) ionisation energy

B) nuclear charge

• question_answer53) At constant temperature the pressure of a gas is increased to three times, then its volume becomes :

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

B) $\frac{2}{3}V$

C) 3V

D) none of these

• question_answer54) Find the temperature of hydrogen gas which has the same velocity as that of oxygen at a temperature of ${{0}^{o}}C$:

A) $273\div 16\text{ }K$

B) $273\times 8\text{ }K$

C) $273\div 32\text{ }K$

D) $273\times 4\text{ }K$

• question_answer55) What is the bond order in case of $O_{2}^{+}$?

A) 2.5

B) 2

C) 1.5

D) 3

• question_answer56) Lindlars catalyst is :

A) Pd supported over $BaC{{O}_{3}}$

B) Hg supported over $PbS{{O}_{4}}$

C) Ni supported over $CuS{{O}_{4}}$

D) Ni supported over $CdS{{O}_{4}}$

• question_answer57) In $s{{p}^{3}}$d-hybridisation, the d-orbital that participate in hybridisation is :

A) $dxy$

B) $dxz$

C) $d{{x}^{2}}-{{y}^{2}}$

D) $d{{z}^{2}}$

• question_answer58) Which of the following is correct in the reaction? ${{H}_{2}}(g)+{{I}_{2}}(g)\xrightarrow{{}}2HI(g)$

A) ${{K}_{p}}={{K}_{c}}$

B) ${{K}_{p}}>{{K}_{c}}$

C) ${{K}_{p}}<{{K}_{c}}$

D) None of these

• question_answer59) A $CaC{{O}_{3}}$ sample contains $3.01\times {{10}^{23}}$ ions of $\overset{2+}{\mathop{Ca}}\,$ and $C{{O}_{3}}^{2-}$. The mass of sample is:

A) 40

B) 50

C) 60

D) 70

• question_answer60) The increasing order for the value of charge/mass for electron [e], proton [p], neutron [n] and alpha particle [a] is :

A) $e<p<n<\alpha$

B) $n<p<e<\alpha$

C) $n<p<\alpha <e$

D) $n<\alpha <p<e$

• question_answer61) The bond order of ${{O}_{2}}^{-}$ is :

A) 1

B) zero

C) 1.5

D) 2

• question_answer62) d and $l$ tartaric acids are:

A) enantiomers

B) tautomers

C) mesomers

D) diastereomers

• question_answer63) In the reaction, $2C(s)+{{O}_{2}}(g)2CO\,\,(g)$ the partial pressure of CO and ${{O}_{2}}$ is 8 atm and 4 arm respectively, then find its equilibrium constant:

A) 16

B) 24

C) 8

D) 2

• question_answer64) Which is the correct electronic configuration of of Cr (chromium)?

A) $1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{1}}3{{d}^{5}}$

B) $1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{2}}3{{d}^{4}}$

C) $1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{2}}3{{d}^{6}}$

D) $1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{1}}3{{d}^{8}}$

• question_answer65) If heat of neutralisation of $C{{H}_{3}}COOH$ and $NaOH$ is -50.6 kJ equivalent and the heat of neutralisation of $N{{H}_{4}}OH$ and $HCl$ is -51.4 kJ equivalent then the heat of neutralisation of $C{{H}_{3}}COOH$ and $N{{H}_{4}}OH$ is:

A) 102 kJ

B) -0.8 kJ

C) 0.8 kJ

D) none of these

• question_answer66) At ${{25}^{o}}C\,{{K}_{a}}$ for $C{{H}_{3}}COOH$ is $1.8\times {{10}^{-5}}$ and ${{K}_{b}}$ for $N{{H}_{4}}OH$ is also $1.8\times {{10}^{-5}}$. The nature of aqueous solution of $C{{H}_{3}}COON{{H}_{4}}$ is :

A) neutral

B) basic

C) acidic

D) amphoteric

• question_answer67) On bombarding $_{7}{{N}^{14}}$ with $\alpha$-particles, the nuclei of the product formed after the release of a proton is :

A) $_{8}{{O}^{17}}$

B) $_{8}{{O}^{18}}$

C) $_{9}{{F}^{7}}$

D) $_{9}{{F}^{18}}$

• question_answer68) Coordination number and oxidation number of Cr in ${{K}_{3}}Cr{{({{C}_{2}}{{O}_{4}})}_{3}}$ are respectively :

A) 6 and +3

B) 4 and-2

C) 3 and 0

D) 3 and +3

• question_answer69) Thermite is a mixture of:

A) $MgO+Al$

B) $F{{e}_{3}}{{O}_{4}}+Al$

C) $Zn+CaC{{O}_{3}}$

D) $Zn+{{P}_{2}}{{O}_{5}}$

• question_answer70) Geometrical isomerism is shown by :

A)

B)

C)

D)

• question_answer71) The oxidation state of sulphur in ${{H}_{2}}S{{O}_{4}}$:

A) +6

B) +4

C) +2

D) +3

• question_answer72) For detection of sulphur in an. Organic compound, sodium nitroprusside is added to the Lassaignes filtrate the ppt. obtained is :

A) purple colour

B) black colour

C) blood-red colour

D) white colour

• question_answer73) Which of the following is correct for$^{60}Co\xrightarrow{-{{\beta }^{-}}}$?

A) $^{61}Co$

B) $^{60}Ni$

C) $^{59}Ni$

D) $^{60}Cu$

• question_answer74) Which of the following is not linear?

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

B) $HCN$

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

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

• question_answer75) Which of the following compound is optically active?

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

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

C) $HOOC\,.\,C{{H}_{2}}\,.\,COOH$

D) $C{{H}_{3}}\,.\,\,CO\,.\,COOH$

• question_answer76) The boiling point of phenols are higher than the hydrocarbons of comparable masses due to:

A) more polarising power

B) presence of hydrogen bonding

C) resonance stabilisation

D) acidic character

• question_answer77) The product obtained is :

A) benzoic acid

B) benzaldehyde

C) salicylaldehyde

D) salicylic acid

• question_answer78) The reduction of aldehyde and ketones to the corresponding hydrocarbons with amalgamated zinc and concentrated $HCl$ is called :

A) Wolff- Kishner reduction

B) Clemmensen reduction

C) Coupling reduction

D) Cross- Cannizaro reaction

• question_answer79) The enthalpy and entropy change for a reaction is $-2.5\times {{10}^{3}}\,cal$ and 7.4 cal ${{\deg }^{-1}}$respectively. At 298 K the reaction is:

A) reversible

B) irreversible

C) spontaneous

D) non-spontaneous

• question_answer80) The energy of an electron in the first Bohr orbit is -13.6 eV, then find the energy of $H{{e}^{+}}$ in the same Bohr orbit:

A) 27.2 eV

B) -27.2 eV

C) 54.4 eV

D) -54.4 eV

• question_answer81) Aldehydes and ketones can be distinguished by:

A) Tollens reagent

B) 2, 4 DNP test

C) Molisch test

D) Mullikans test

• question_answer82) The electrical conductance is shown by :

A) sodium

B) diamond

C) graphite

D) potassium

• question_answer83) The largest number of molecules are present in:

A) $5g\,N{{H}_{3}}$

B) $11\,g\,C{{O}_{2}}$

C) $8\,g\,S{{O}_{2}}$

D) $4\,g\,{{H}_{2}}$

• question_answer84) The splitting of spectral lines under the influence of magnetic field is known as :

A) Zeeman effect

B) photoelectric effect

C) Stark effect

D) electromagnetic effect

• question_answer85) Write the product: \begin{matrix} C{{H}_{2}}OH \\ \begin{align} & | \\ & C{{H}_{2}}OH \\ \end{align} \\ \end{matrix}\xrightarrow{HI{{O}_{4}}}

A) formaldehyde

B) acetaldehyde

C) formic acid

D) acetic acid

• question_answer86) lonizarion energy of hydrogen is :

A) slightly higher than chlorine

B) much higher than chlorine

C) lesser than chlorine

D) equal to chlorine

• question_answer87) In LPG gas the main constituent of the gas is :

A) ethane

B) methane

C) butane

D) propane

• question_answer88) Which plays a major role in the formation of complex compound?

A) Transition metal

B) Lanthanides and actinides

C) Representative elements

D) p-block element

• question_answer89) The conjugate base of ${{H}_{2}}PO_{4}^{-}$ is :

A) ${{H}_{3}}P{{O}_{4}}$

B) $HP{{O}_{4}}^{2-}$

C) $P{{O}_{4}}^{3-}$

D) ${{H}_{2}}P{{O}_{3}}^{-}$

• question_answer90) The product obtained from :

A)

B)

C)

D) none of these

• question_answer91) Benzaldehyde on treatment with ethanolic KCN produce :

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

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

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

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

• question_answer92) When aniline is warm with $CHC{{l}_{3}}$ and ale.$KOH$, it forms a compound which having offensive smell, the compound formed is :

A)

B)

C)

D)

• question_answer93) The formation of large number of compounds of carbon is due to its :

A) non-metallic nature

B) catenation character

C) high ionisation potential

D) four valency

• question_answer94) Orthophosphoric acid is :

A) monobasic

B) dibasic

C) tribasic

D) tetrabasic

• question_answer95) The volume strength of 1,5 (N) ${{H}_{2}}{{O}_{2}}$ solution is:

A) 4.8

B) 8.4

C) 3

D) 8

• question_answer96) A gas has a vapour density 11.2. The volume occupied by 1 g of gas at NTP is :

A) 1 L

B) 11.2 L

C) 22.4 L

D) unpredictable

• question_answer97) What is the rate of a reaction in a first order reaction, if its half life period is 693 s and its concentration is 2 mol/L?

A) 100

B) 0.002

C) 0.02

D) 200

• question_answer98) Write the product formed in the reaction : $(A)\xrightarrow[anhydride]{acetic}(B)$

A)

B)

C)

D)

B) uranium

C) polonium

D) thorium

• question_answer100) A compound contains 38.8% C, 16% H and 45.2% N. The empirical formula of the compound will be :

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

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

C) $CHN$

D) $C{{H}_{10}}{{N}_{2}}$

• question_answer101) Malignant tertian malaria is caused by :

A) Plasmodium falciparum

B) P. ovale

C) P. vivax

D) P. malariae

• question_answer102) Agar-agar is extracted from :

A) Selaginella

B) Spirogyra

C) Gelidium

D) Diatoms

• question_answer103) Cause of death during snake bite :

A) failure of nerves

B) destruction of RBCs

C) permanent contraction of muscles

D) both [a] and [b]

• question_answer104) The metal ion involved in stomatal regulation is:

A) Fe

B) Mg

C) Zn

D) K

• question_answer105) Oviparous mammals are :

A) kangaroo

B) duck billed platypus

C) whale

D) rabbit

• question_answer106) Oxygen which is liberated during photosynthesis comes from:

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

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

C) phosphoglyceric acid

D) chlorophyll

• question_answer107) In Singer and Nicolson model of plasma membrane/the extrinsic proteins are :

A) tightly associated with intrinsic protein and can be easily separated

B) loosely associated with intrinsic protein and can be easily separated

C) loosely associated with intrinsic protein and cant be easily separated

D) tightly associated with intrinsic protein and cant be easily separated

• question_answer108) Ribosomes are associated with:

A) RNA synthesis

B) protein synthesis

C) enzyme mobilisation

D) DNA synthesis

• question_answer109) Minimata disease caused by water pollution is due to:

B) arsenic chloride poisoning

C) mercuric poisoning

D) ammonia pollution

A) cell elongation and cell wall formation

B) shoot elongation

C) leaf fall and dormancy

D) cell division

• question_answer111) A material, which arrests cell division is obtained from:

A) Crocus

B) Colchicum

C) Delbergia

D) Chrysanthemum

• question_answer112) African sleeping sickness is caused by:

A) Trypanosoma cruzi by its vector tse-tse fly

B) T. gambiensis by G. palpalis

C) W. bancroftii by sandfly

D) T. solium by eating measly pork

• question_answer113) Syncytial or coenocytic epidermis is associated with:

A) Hydra

B) Star fish

C) earthworm

D) Ascaris

• question_answer114) Silver fish is a:

A) fish

B) crustacean

C) cnidarian

D) insect

• question_answer115) Rhinoceros sp. can be associated with:

A) Corbett

B) Runn of Kutch

C) Gir

D) Kaziranga

• question_answer116) Soil carried by gravity is:

A) alluvial

B) colluvial

C) elluvial

D) glacial

• question_answer117) Little leaf disease of brinjal is caused by:

A) mycoplasma

B) fungus

C) algae

D) virus

• question_answer118) Progesterone is secreted by:

A) corpus luteum

B) corpus albicans

C) corpus striatum

D) corpus collosum

• question_answer119) Black rust of wheat is caused by:

A) Rhizopus

B) Puccinia

C) Yeast

D) Penicillium

• question_answer120) Which is not a Coelenterate?

A) Polyp

B) Portuguese man of war

C) Jellyfish

D) Silver fish

A) insecticide only

B) fungicides, herbicides, insecticides nematicides and rodenticides

C) insecticides, nematicides and rodenticide

D) herbicides insecticides and nematicides

• question_answer122) A new species is formed when:

A) because of new genie populations organism with new traits are born

B) exchange of parts between homologous chromosomes takes place

C) change in the genotype in population leads to sexual isolation

D) the exchange of parts of chromosomes during gametogenesis leads to the formation of new genotype

• question_answer123) Which hormone is used to induce ripening in banana?

A) Cytokinin

B) Ethylene

C) ABA

D) $G{{A}_{3}}$

• question_answer124) A new strain for industry produced through biotechnology belongs to;

A) E. coli

B) Bacillus subtilis

C) Pseudomonas putida

D) Saccharomyces cerevisiae

• question_answer125) Closed ancestor to man was:

A) Neanderthal man

B) Homo habilis

C) Cro-magnon man

D) Australopithecus

A) double stranded round

B) single stranded round

C) double stranded straight

D) double stranded RNA as nucleic acid

• question_answer127) Klinefelters syndrome is associated with/marked by:

A) XYY

B) XXY

C) XO

D) XY

• question_answer128) Primary growth is caused by:

A) apical meristem

B) lateral meristem

C) dermatogen

D) plerome

• question_answer129) Loop of Henie is associated with:

A) uriniferous tubules

B) seminiferous tubules

C) neurons

D) muscle fibres

• question_answer130) Botanical name of cauliflower is:

A) Brassica oleracea var. capitata

B) Brassica oleracea var. gemmifera

C) Brassica campestris

D) Brassica oleracea var. botrytis

• question_answer131) Respiratory pigment or oxygen carrier in frogs blood is :

A) haemocyanin

B) haemoglobin

C) haemazoin

D) lymphocytes

• question_answer132) An introduction to embryology of angiosperm book was written by:

A) P.Maheshwari

B) K.C. Mehta

C) A.K. Sharma

D) M.S. Swaminathan

A) quickly and they fatigue

B) quickly and unfatigued

C) slowly and are not fatigued

D) slowly and they fatigue

• question_answer134) Why Amoeba has been kept in Protozoa?

A) Due to contractile vacuole

B) Because of nutrition being insectivorous

C) Cell wall

D) Unicellular body

A) Arachnida

B) Apoda

C) Gastropda

D) Cestoda

• question_answer136) Verticillaster, which is the characteristic of family Labiatae is a type of:

A) phyllotaxis

B) inflorescence

C) placentation

D) venation

• question_answer137) Which one of the following is associated with sex-linked inheritance?

A) Night-blindness

B) Muscular dystrophy

C) Astigmatism

D) Colourblindness

• question_answer138) The book Micrographia was written by:

A) Huxley

B) Robert Hooke

C) Fritsch

D) J.D. Hooker

• question_answer139) Velamen tissues are associated with:

A) haustorial function

B) assimilation

C) absorption of moisture

D) nutrition

• question_answer140) Significance of Krebs cycle:

A) synthesis of ATP by oxidative phosphorylation

B) synthesis of amino acids

C) synthesis of vitamins

D) activates photosynthesis

• question_answer141) A flower characterised by monoadelphous tubular stamens belongs to :

A) Solanaceae

B) Liliaceae

C) Malvaceae

D) Brassicaceae

• question_answer142) The upper pigmented part of egg is concerned with :

A) nourishment

B) camouflage

C) respiration

D) colouration

• question_answer143) Study of relationship between communities and environment is called :

A) ecology

B) synecology

C) autecology

D) ethology

• question_answer144) The branch of science related with improvement of mankind by genetics is :

A) human genetics

B) common genetics

C) eugenics

D) heredity

• question_answer145) Biogeochemical cycling means :

A) cycling of nutrients in an ecosystem

B) cycling of water

C) cycling of energy in an ecosystem

D) cycling of gases between plants and the atmosphere

• question_answer146) Uric acid is the main excretory product in :

A) insects

B) earthworm

C) amphibians

D) mammals

• question_answer147) In plants, respiration takes place :

A) during day only

B) during night only

C) all the 24 hours

D) at dusk

A) animals living in burrows

B) remnants of extinct animals and plants

C) floating organisms

D) fast runners

• question_answer149) Semiconservative replication of DNA was given by:

A) Watson and Crick

B) Bateson and Punnet

C) Messelson and Stahl

D) Avery, McCarty and MacLeod

• question_answer150) Female hormone is :

A) progesterone

B) estrogen