Solved papers for BCECE Medical BCECE Medical Solved Papers-2002

BCECE Medical Solved Papers-2002 Total Questions - 150

1) 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 \[5.32\times {{10}^{2}}m/{{s}^{2}}\]

View Answer
2) 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

View Answer
3) 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

View Answer
4) 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

View Answer
5) 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

View Answer
6) Diamagnetic substances are :

A)

strongly repelled by magnets

B)

feebly repelled by magnets

C)

feebly attracted by magnets

D)

strongly attracted by magnets

View Answer
7) The study of the effects associated with electric field at rest is known as :

A)

electrostatics

B)

electromagnetism

C)

magnetostatics

D)

none of these

View Answer
8) 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

View Answer
9) A current carrying wire in the neighbourhood produces :

A)

electric and magnetic fields

B)

magnetic field only

C)

no field

D)

electric field

View Answer
10) 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

View Answer
11) 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)

\[19.6\times {{10}^{15}}N/{{m}^{2}}\]

View Answer
12) Frequency of infrared wave is approximately:

A)

1018 Hz

B)

1014 Hz

C)

109 Hz

D)

1016 Hz

View Answer
13) 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)

\[{{0.0064}^{o}}{{C}^{-1}}\]

View Answer
14) 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

View Answer
15) 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

View Answer
16) 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

View Answer
17) 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)

\[[{{M}^{-1}}{{L}^{3}}{{T}^{-2}}]\]

View Answer
18) 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

View Answer
19) Angle of dip is \[{{90}^{o}}\] at:

A)

equator

B)

middle point

C)

poles

D)

none of these

View Answer
20) 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

View Answer
21) 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

View Answer
22) 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 \[\overset{o}{\mathop{A}}\,\]

View Answer
23) The instrument used to measure the temperature of the source from its thermal radiation is :

A)

hydrometer

B)

barometer

C)

thermopile

D)

pyrometer

View Answer
24) Which of the following are not the transverse waves?

A)

Sound waves

B)

Visible light waves

C)

X-rays

D)

y-rays

View Answer
25) 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)

\[{{a}_{2}}\]

View Answer
26) 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

View Answer
27) In a p -type semiconductor germanium is doped with :

A)

aluminium

B)

boron

C)

gallium

D)

all of these

View Answer
28) Boolean algebra is essentially based on :

A)

numbers

B)

symbol

C)

logic

D)

truth

View Answer
29) 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

View Answer
30) 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

View Answer
31) 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

View Answer
32) 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

View Answer
33) 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)

\[{{\mu }_{R}}<\mu {{\,}_{V}}\]

View Answer
34) 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

View Answer
35) 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 \[d={{f}_{1}}+{{f}_{2}}\]

View Answer
36) Huygens wave theory of light could not explain :

A)

photoelectric effect

B)

polarisation

C)

diffraction

D)

interference

View Answer
37) The rain drops are spherical in shape due to :

A)

residual pressure

B)

thrust on drop

C)

surface tension

D)

viscosity

View Answer
38) 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

View Answer
39) The thermions are :

A)

positrons

B)

photons

C)

electrons

D)

protons

View Answer
40) 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

View Answer
41) 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)

\[6\times {{10}^{19}}N\]

View Answer
42) 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

View Answer
43) 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

View Answer
44) 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

View Answer
45) 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

View Answer
46) 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

View Answer
47) 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 \[\mu A\]

View Answer
48) 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)

\[\theta =\frac{\pi }{2}\]

View Answer
49) 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)

\[>\frac{g}{a}\]

View Answer
50) 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)

\[\sqrt{{{u}^{2}}+2\,g\,\,h}\]

View Answer
51) 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)

\[6\,g\,{{I}_{2}}\]

View Answer
52) The size of isoelectronic ions depends on :

A)

ionisation energy

B)

nuclear charge

C)

ionic radius

D)

covalent radius

View Answer
53) 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

View Answer
54) 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)

\[273\times 4\text{ }K\]

View Answer
55) What is the bond order in case of \[O_{2}^{+}\]?

A)

2.5

B)

2

C)

1.5

D)

3

View Answer
56) 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 \[CdS{{O}_{4}}\]

View Answer
57) 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)

\[d{{z}^{2}}\]

View Answer
58) 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

View Answer
59) 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

View Answer
60) 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)

\[n<\alpha <p<e\]

View Answer
61) The bond order of \[{{O}_{2}}^{-}\] is :

A)

1

B)

zero

C)

1.5

D)

2

View Answer
62) d and \[l\] tartaric acids are:

A)

enantiomers

B)

tautomers

C)

mesomers

D)

diastereomers

View Answer
63) 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

View Answer
64) 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)

\[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}4{{s}^{1}}3{{d}^{8}}\]

View Answer
65) 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

View Answer
66) 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

View Answer
67) 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)

\[_{9}{{F}^{18}}\]

View Answer
68) 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

View Answer
69) Thermite is a mixture of:

A)

\[MgO+Al\]

B)

\[F{{e}_{3}}{{O}_{4}}+Al\]

C)

\[Zn+CaC{{O}_{3}}\]

D)

\[Zn+{{P}_{2}}{{O}_{5}}\]

View Answer
70) Geometrical isomerism is shown by :

A)

B)

C)

D)

View Answer
71) The oxidation state of sulphur in \[{{H}_{2}}S{{O}_{4}}\]:

A)

+6

B)

+4

C)

+2

D)

+3

View Answer
72) 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

View Answer
73) Which of the following is correct for\[^{60}Co\xrightarrow{-{{\beta }^{-}}}\]?

A)

\[^{61}Co\]

B)

\[^{60}Ni\]

C)

\[^{59}Ni\]

D)

\[^{60}Cu\]

View Answer
74) Which of the following is not linear?

A)

\[BeC{{l}_{2}}\]

B)

\[HCN\]

C)

\[ZnC{{l}_{2}}\]

D)

\[{{H}_{2}}O\]

View Answer
75) 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)

\[C{{H}_{3}}\,.\,\,CO\,.\,COOH\]

View Answer
76) 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

View Answer
77) The product obtained is :

A)

benzoic acid

B)

benzaldehyde

C)

salicylaldehyde

D)

salicylic acid

View Answer
78) 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

View Answer
79) 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

View Answer
80) 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

View Answer
81) Aldehydes and ketones can be distinguished by:

A)

Tollens reagent

B)

2, 4 DNP test

C)

Molisch test

D)

Mullikans test

View Answer
82) The electrical conductance is shown by :

A)

sodium

B)

diamond

C)

graphite

D)

potassium

View Answer
83) 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)

\[4\,g\,{{H}_{2}}\]

View Answer
84) 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

View Answer
85) 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

View Answer
86) lonizarion energy of hydrogen is :

A)

slightly higher than chlorine

B)

much higher than chlorine

C)

lesser than chlorine

D)

equal to chlorine

View Answer
87) In LPG gas the main constituent of the gas is :

A)

ethane

B)

methane

C)

butane

D)

propane

View Answer
88) 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

View Answer
89) 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)

\[{{H}_{2}}P{{O}_{3}}^{-}\]

View Answer
90) The product obtained from :

A)

B)

C)

D)

none of these

View Answer
91) 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)

\[{{C}_{6}}{{H}_{5}}CHOHCO{{C}_{6}}{{H}_{5}}\]

View Answer
92) 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)

View Answer
93) 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

View Answer
94) Orthophosphoric acid is :

A)

monobasic

B)

dibasic

C)

tribasic

D)

tetrabasic

View Answer
95) The volume strength of 1,5 (N) \[{{H}_{2}}{{O}_{2}}\] solution is:

A)

4.8

B)

8.4

C)

3

D)

8

View Answer
96) 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

View Answer
97) 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

View Answer
98) Write the product formed in the reaction : \[(A)\xrightarrow[anhydride]{acetic}(B)\]

A)



B)



C)



D)



View Answer
99) The most radioactive element is :

A)

radium

B)

uranium

C)

polonium

D)

thorium

View Answer
100) 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)

\[C{{H}_{10}}{{N}_{2}}\]

View Answer
101) Malignant tertian malaria is caused by :

A)

Plasmodium falciparum

B)

P. ovale

C)

P. vivax

D)

P. malariae

View Answer
102) Agar-agar is extracted from :

A)

Selaginella

B)

Spirogyra

C)

Gelidium

D)

Diatoms

View Answer
103) Cause of death during snake bite :

A)

failure of nerves

B)

destruction of RBCs

C)

permanent contraction of muscles

D)

both [a] and [b]

View Answer
104) The metal ion involved in stomatal regulation is:

A)

Fe

B)

Mg

C)

Zn

D)

K

View Answer
105) Oviparous mammals are :

A)

kangaroo

B)

duck billed platypus

C)

whale

D)

rabbit

View Answer
106) Oxygen which is liberated during photosynthesis comes from:

A)

\[C{{O}_{2}}\]

B)

\[{{H}_{2}}O\]

C)

phosphoglyceric acid

D)

chlorophyll

View Answer
107) 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

View Answer
108) Ribosomes are associated with:

A)

RNA synthesis

B)

protein synthesis

C)

enzyme mobilisation

D)

DNA synthesis

View Answer
109) Minimata disease caused by water pollution is due to:

A)

lead poisoning

B)

arsenic chloride poisoning

C)

mercuric poisoning

D)

ammonia pollution

View Answer
110) Abscisic acid controls:

A)

cell elongation and cell wall formation

B)

shoot elongation

C)

leaf fall and dormancy

D)

cell division

View Answer
111) A material, which arrests cell division is obtained from:

A)

Crocus

B)

Colchicum

C)

Delbergia

D)

Chrysanthemum

View Answer
112) 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

View Answer
113) Syncytial or coenocytic epidermis is associated with:

A)

Hydra

B)

Star fish

C)

earthworm

D)

Ascaris

View Answer
114) Silver fish is a:

A)

fish

B)

crustacean

C)

cnidarian

D)

insect

View Answer
115) Rhinoceros sp. can be associated with:

A)

Corbett

B)

Runn of Kutch

C)

Gir

D)

Kaziranga

View Answer
116) Soil carried by gravity is:

A)

alluvial

B)

colluvial

C)

elluvial

D)

glacial

View Answer
117) Little leaf disease of brinjal is caused by:

A)

mycoplasma

B)

fungus

C)

algae

D)

virus

View Answer
118) Progesterone is secreted by:

A)

corpus luteum

B)

corpus albicans

C)

corpus striatum

D)

corpus collosum

View Answer
119) Black rust of wheat is caused by:

A)

Rhizopus

B)

Puccinia

C)

Yeast

D)

Penicillium

View Answer
120) Which is not a Coelenterate?

A)

Polyp

B)

Portuguese man of war

C)

Jellyfish

D)

Silver fish

View Answer
121) Pesticides include:

A)

insecticide only

B)

fungicides, herbicides, insecticides nematicides and rodenticides

C)

insecticides, nematicides and rodenticide

D)

herbicides insecticides and nematicides

View Answer
122) 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

View Answer
123) Which hormone is used to induce ripening in banana?

A)

Cytokinin

B)

Ethylene

C)

ABA

D)

\[G{{A}_{3}}\]

View Answer
124) A new strain for industry produced through biotechnology belongs to;

A)

E. coli

B)

Bacillus subtilis

C)

Pseudomonas putida

D)

Saccharomyces cerevisiae

View Answer
125) Closed ancestor to man was:

A)

Neanderthal man

B)

Homo habilis

C)

Cro-magnon man

D)

Australopithecus

View Answer
126) Prokaryotic DNA is:

A)

double stranded round

B)

single stranded round

C)

double stranded straight

D)

double stranded RNA as nucleic acid

View Answer
127) Klinefelters syndrome is associated with/marked by:

A)

XYY

B)

XXY

C)

XO

D)

XY

View Answer
128) Primary growth is caused by:

A)

apical meristem

B)

lateral meristem

C)

dermatogen

D)

plerome

View Answer
129) Loop of Henie is associated with:

A)

uriniferous tubules

B)

seminiferous tubules

C)

neurons

D)

muscle fibres

View Answer
130) Botanical name of cauliflower is:

A)

Brassica oleracea var. capitata

B)

Brassica oleracea var. gemmifera

C)

Brassica campestris

D)

Brassica oleracea var. botrytis

View Answer
131) Respiratory pigment or oxygen carrier in frogs blood is :

A)

haemocyanin

B)

haemoglobin

C)

haemazoin

D)

lymphocytes

View Answer
132) 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

View Answer
133) Cardiac muscles contract:

A)

quickly and they fatigue

B)

quickly and unfatigued

C)

slowly and are not fatigued

D)

slowly and they fatigue

View Answer
134) Why Amoeba has been kept in Protozoa?

A)

Due to contractile vacuole

B)

Because of nutrition being insectivorous

C)

Cell wall

D)

Unicellular body

View Answer
135) Alimentary canal is not found in:

A)

Arachnida

B)

Apoda

C)

Gastropda

D)

Cestoda

View Answer
136) Verticillaster, which is the characteristic of family Labiatae is a type of:

A)

phyllotaxis

B)

inflorescence

C)

placentation

D)

venation

View Answer
137) Which one of the following is associated with sex-linked inheritance?

A)

Night-blindness

B)

Muscular dystrophy

C)

Astigmatism

D)

Colourblindness

View Answer
138) The book Micrographia was written by:

A)

Huxley

B)

Robert Hooke

C)

Fritsch

D)

J.D. Hooker

View Answer
139) Velamen tissues are associated with:

A)

haustorial function

B)

assimilation

C)

absorption of moisture

D)

nutrition

View Answer
140) Significance of Krebs cycle:

A)

synthesis of ATP by oxidative phosphorylation

B)

synthesis of amino acids

C)

synthesis of vitamins

D)

activates photosynthesis

View Answer
141) A flower characterised by monoadelphous tubular stamens belongs to :

A)

Solanaceae

B)

Liliaceae

C)

Malvaceae

D)

Brassicaceae

View Answer
142) The upper pigmented part of egg is concerned with :

A)

nourishment

B)

camouflage

C)

respiration

D)

colouration

View Answer
143) Study of relationship between communities and environment is called :

A)

ecology

B)

synecology

C)

autecology

D)

ethology

View Answer
144) The branch of science related with improvement of mankind by genetics is :

A)

human genetics

B)

common genetics

C)

eugenics

D)

heredity

View Answer
145) 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

View Answer
146) Uric acid is the main excretory product in :

A)

insects

B)

earthworm

C)

amphibians

D)

mammals

View Answer
147) In plants, respiration takes place :

A)

during day only

B)

during night only

C)

all the 24 hours

D)

at dusk

View Answer
148) Fossils are :

A)

animals living in burrows

B)

remnants of extinct animals and plants

C)

floating organisms

D)

fast runners

View Answer
149) Semiconservative replication of DNA was given by:

A)

Watson and Crick

B)

Bateson and Punnet

C)

Messelson and Stahl

D)

Avery, McCarty and MacLeod

View Answer
150) Female hormone is :

A)

progesterone

B)

estrogen

C)

estradiol

D)

all of these

View Answer