Solved papers for JCECE Medical JCECE Medical Solved Paper-2003

JCECE Medical Solved Paper-2003 Total Questions - 150

1) The internal resistance of a cell is the resistance of:

A)

electrolyte used in cell

B)

electrodes of the cell

C)

material used in cell

D)

vessel of the cell

View Answer
2) A device for generating an alternating current of a desired frequency is known as:

A)

an oscillator

B)

an amplifier

C)

a rectifier

D)

none of these

View Answer
3) The angle of minimum deviation for a thin prism with respect to air and when dipped in water will be:\[\left( {{\,}_{a}}{{\mu }_{g}}=\frac{3}{2}{{,}_{a}}{{\mu }_{w}}=\frac{4}{3} \right)\]

A)

\[\frac{1}{4}\]

B)

\[\frac{1}{8}\]

C)

\[\frac{1}{3}\]

D)

\[\frac{1}{2}\]

View Answer
4) Escape velocity of a body when projected from the earths surface is 11.2 km/s. If it is projected at an angle of \[\text{5}{{\text{0}}^{\text{o}}}\] from the horizontal, the escape velocity is:

A)

11.8 km/s

B)

16.5 km/s

C)

11.2 km/s

D)

14.5 km/s.

View Answer
5) A diamagnetic substance is brought near a strong magnet, then it is:

A)

attracted by a magnet

B)

repelled by a magnet

C)

repelled by north pole and attracted by south pole

D)

attracted by north pole and repelled by south pole

View Answer
6) The ratio of intensities of two waves is 9:16. If they interfere, the ratio of maximum to minimum intensity will be:

A)

4 : 1

B)

1 : 25

C)

1 : 3

D)

49 : 1

View Answer
7) The sun emits a light with maximum wavelength 510 nm while another star emits a light with maximum wavelength of 350 nm. The ratio of surface temperature of sun and the star will be:

A)

0.69

B)

0.46

C)

1.45

D)

2.1

View Answer
8) If the equation of motion of standing wave is \[y=0.3\,\sin (314\,t-1.57x),\]then the velocity of standing wave is:

A)

400 unit

B)

350 unit

C)

209 unit

D)

200 unit

View Answer
9) 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)

2.03 V

B)

2.54 V

C)

1:25 V

D)

1.39 V

View Answer
10) The moment of momentum for an electron in second orbit of hydrogen atom as per Bohrs model is:

A)

\[\frac{h}{\pi }\]

B)

\[2\pi h\]

C)

\[\frac{2h}{\pi }\]

D)

\[\frac{\pi }{h}\]

View Answer
11) The latent heat of vaporisation of water is \[\text{2250}\,\text{J/kg}\text{.}\]If the work done in the process of vaporisation of 1 kg is 168 J, then increase in internal energy will be:

A)

1904 J

B)

1984 J

C)

3202 J

D)

2082 J

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

A)

photoelectric effect

B)

interference

C)

diffraction

D)

polarization

View Answer
13) In a triode valve, when the plate potential is increased from 200 V to 220 V and grid potential is decreased from \[-0.5\text{ V}\]to \[-\text{ 1}\text{.3 V,}\] there is 1 no change in plate current. The amplification factor of the triode is:

A)

25

B)

14

C)

11

D)

73

View Answer
14) A bar magnet of magnetic moment \[\text{220 A}{{\text{m}}^{\text{2}}}\]is suspended in a magnetic field of intensity 0.25 N/Am. The couple required to deflect it through \[\text{3}{{\text{0}}^{\text{o}}}\]is:

A)

27.5 Nm

B)

20.25 Nm

C)

47.63 Nm

D)

12 Nm

View Answer
15) A plano-convex lens has refractive index 1.5 and radius of curvature 50 cm. What is focal length of lens?

A)

100 cm

B)

200 cm

C)

178 cm

D)

150 cm

View Answer
16) A source and an observer move away from each other, with a velocity of 20 m/s. If the apparent frequency heard by the observer is 1840 Hz, the actual frequency of the source is: (Velocity of sound in air = 340 m/s):

A)

2486 Hz

B)

2070 Hz

C)

2134 Hz

D)

1872 Hz

View Answer
17) The speed of wave in a medium is 650 m/s. If 3500 waves are passing through a point in the medium in 1.67 min, then its wavelength will be:

A)

16.25m

B)

14.29m

C)

18.57m

D)

20.50m

View Answer
18) The body is projected at such angle that the horizontal range is three times the greatest height. The angle of projection is:

A)

\[{{43}^{o}}8\]

B)

\[{{25}^{o}}8\]

C)

\[{{33}^{o}}7\]

D)

\[{{53}^{o}}1\]

View Answer
19) On the horizontal surface of a truck, a block of mass 1 kg is placed \[(\mu =0.6)\] and truck is moving with acceleration \[\text{5}\,\text{m/}{{\text{s}}^{\text{2}}}\text{.}\] The frictional force acting on the block will be:\[(g=10\,m/{{s}^{2}})\]

A)

6 N

B)

5.88 N

C)

7 N

D)

9 N

View Answer
20) Calculate the work done when a force \[\vec{F}=2\hat{i}+3\hat{j}-5\hat{k}\]units acts on a body producing a displacement\[\vec{s}=2\hat{i}+4\hat{j}+3\hat{k}\] units:

A)

1 unit

B)

20 unit

C)

5 unit

D)

zero

View Answer
21) The efficiency of Car not engine is 50% and temperature of sink is 500 K. If the temperature of source is kept constant and its efficiency is to be raised to 60%, then the required temperature of the sink will be:

A)

600 K

B)

400 K

C)

500 K

D)

100 K

View Answer
22) What happens to the internal energy of a gas during isothermal expansion?

A)

Internal energy will decrease

B)

Internal energy: will increase

C)

Internal energy will become zero

D)

Internal energy will remain same

View Answer
23) 100 g ice is mixed with 100 g of water at \[100{{\,}^{o}}C.\] What will be the final temperature of the mixture?

A)

\[~10{{\,}^{o}}C\]

B)

\[~27{{\,}^{o}}C\]

C)

\[~14{{\,}^{o}}C\]

D)

none of these

View Answer
24) Black hole consists of:

A)

ozone layer

B)

super dense planetary material

C)

upper surface of atmosphere

D)

none of the above

View Answer
25) Three resistors \[2\Omega ,\,3\Omega \] and \[4\Omega \] are connected as shown in the given diagram. The equivalent resistance will be:

A)

\[\frac{12}{13}\]

B)

\[\frac{11}{10}\]

C)

2

D)

\[\frac{10}{11}\]

View Answer
26) If an electron jumps from first orbit to third orbit of hydrogen atom it will:

A)

not loose energy

B)

release energy

C)

absorb energy

D)

not gain energy

View Answer
27) A body of mass 10 kg moving with velocity 10 m/s collides with a stationary body of mass 5 kg. After collision both bodies stick to each other, velocity of the joint body after collision is:

A)

\[\frac{3}{10}\,m/s\]

B)

\[20\,m/s\]

C)

\[\frac{20}{3}\,m/s\]

D)

\[15\,m/s\]

View Answer
28) If a body starts from rest and travels 110 cm in the 9th second, then acceleration of the body is:

A)

\[0.13\text{ }m/{{s}^{2}}\]

B)

\[~0.16\text{ }m/{{s}^{2}}\]

C)

\[~0.18\text{ m/}{{\text{s}}^{2}}\]

D)

\[~0.34\text{ }m/{{s}^{2}}\]

View Answer
29) If the momentum of a particle is doubled, then its de-Broglie wavelength will:

A)

become four times

B)

become half

C)

become two times

D)

remain unchanged

View Answer
30) Dimensions of torque are:

A)

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

B)

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

C)

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

D)

\[[M{{L}^{0}}{{T}^{-2}}]\]

View Answer
31) Two vectors have magnitudes 3 and 5. If angle between them is \[\text{6}{{\text{0}}^{\text{o}}}\text{,}\] then the dot product of two vectors will be:

A)

7.5

B)

6.5

C)

8.4

D)

7.9

View Answer
32) The kinetic energy of 1 g molecule of a gas, at normal temperature and pressure is:\[\text{(R}\,\text{=}\,\text{8}\text{.321}\,\text{J/mol-K)}\]

A)

\[1.2\times {{10}^{2}}J\]

B)

\[3.4\times {{10}^{3}}J\]

C)

\[1.66\times {{10}^{4}}J\]

D)

\[2.97\times {{10}^{4}}J\]

View Answer
33) If the coefficient of cubical expansion is \[x\]times of the coefficient of superficial expansion, then value of \[x\] is:

A)

2.7

B)

2

C)

1.5

D)

9.5

View Answer
34) X-ray will not show the phenomenon of:

A)

interference

B)

deflection by electric field

C)

diffraction

D)

polarization

View Answer
35) Bernoullis theorem is based on:

A)

conservation of mass, energy and momentum

B)

conservation of mass

C)

conservation of momentum

D)

conservation of energy

View Answer
36) In bringing an electron towards another electron, the electrostatic potential energy of the system:

A)

decreases

B)

increases

C)

remains same

D)

becomes zero

View Answer
37) The half-life of radium is 1600 yr. What is the mean life and disintegration constant of radium?

A)

\[2309\,yr,\,\frac{1}{2309}/yr\,\]

B)

\[3309\,yr,\,\frac{1}{3309}/yr\,\]

C)

\[1309\,yr,\,\frac{1}{1309}/yr\,\]

D)

none of the above

View Answer
38) Energy obtained when 1 mg mass is completely converted in to energy will be:

A)

\[9\times {{10}^{13}}\,J\]

B)

\[3\times {{10}^{8}}\,J\]

C)

\[3\times {{10}^{15}}\,J\]

D)

\[9\times {{10}^{15}}\,J\]

View Answer
39) A ray of light is incident on a surface of a plate of glass of refractive index 1.5 at polarising angle. The angle of refraction of the ray will be:

A)

\[{{53.7}^{o}}\]

B)

\[~{{43.7}^{o}}\]

C)

\[{{33.7}^{o}}\]

D)

none of these

View Answer
40) A closed organ pipe and an open organ pipe are tuned to the same fundamental frequency. The ratio of their lengths is:

A)

1 : 2

B)

4 : 1

C)

1 : 4

D)

2 : 1

View Answer
41) A particle is moving along a circular path of radius 5m with uniform speed 5 m/s. What will be the average acceleration -when the particle completes half revolution?

A)

\[\frac{10}{\pi }m/{{s}^{2}}\]

B)

\[10\,m/{{s}^{2}}\]

C)

\[10\pi \,m/{{s}^{2}}\]

D)

zero

View Answer
42) A body of mass m is attached between two springs of force constants \[{{k}_{1}}\]and \[{{k}_{2}}\]as shown in figure. The other ends of the springs are fixed to firm supports. The frequency of the oscillation is:

A)

\[n=\frac{1}{2\pi }\sqrt{\frac{{{k}_{1}}-{{k}_{2}}}{m}}\]

B)

\[n=\frac{1}{2\pi }\sqrt{\frac{{{k}_{1}}{{k}_{2}}}{m}}\]

C)

\[n=\frac{1}{2\pi }\sqrt{\frac{{{k}_{1}}+{{k}_{2}}}{m}}\]

D)

none of the above

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

A)

boron

B)

gallium

C)

aluminium

D)

all of these

View Answer
44) In a full wave rectifier circuit operating from 50 Hz mains frequency, what is the fundamental frequency in the ripple?

A)

\[50\,Hz\]

B)

\[100\,Hz\]

C)

\[25\,Hz\]

D)

\[70\,Hz\]

View Answer
45) An ideal gas at \[27{{\,}^{o}}C\]is compressed adiabatically to \[\frac{8}{27}\] of its original volume. The rise in temperature will be \[\left( \gamma =\frac{5}{3} \right):\]

A)

\[~480{{\,}^{o}}C\]

B)

\[~275{{\,}^{o}}C\]

C)

\[~450{{\,}^{o}}C\]

D)

\[~375{{\,}^{o}}C\]

View Answer
46) When you make ice cubes, entropy of water:

A)

does not change

B)

increases

C)

decreases

D)

may either increase or decrease depending on the process used

View Answer
47) The focal length of the objective lens and eye-piece of an astronomical telescope are 2m and 0.05 m. Find the length of the telescope.

A)

2.05 m

B)

1.16 m

C)

1.05 m

D)

2.9 m

View Answer
48) Two identical batteries, each of emf 2 V and internal resistance \[1\,\Omega \]pass a current through external resistance \[R=0.5\,\Omega .\]The maximum power that can be developed across R using these batteries is:

A)

3.2W

B)

8.2W

C)

4 W

D)

2 W

View Answer
49) At what height from the earths surface, the acceleration due to gravity will be half the value of g at surface? (R= 6400 km)

A)

6400 km

B)

8200 km

C)

4800 km

D)

1600 km

View Answer
50) In a semiconducting material the mobilities of electrons and holes are \[{{\mu }_{e}}\]and \[{{\mu }_{h}}\] respectively which of the following is true?

A)

\[{{\mu }_{e}}>{{\mu }_{h}}\]

B)

\[{{\mu }_{e}}<{{\mu }_{h}}\]

C)

\[{{\mu }_{e}}={{\mu }_{h}}\]

D)

\[{{\mu }_{e}}<0,\,{{\mu }_{h}}>0\]

View Answer
51) Tyndall effect is shown by:

A)

solution

B)

precipitate

C)

sol

D)

none of these

View Answer
52) In reaction, \[MnO_{4}^{-}+{{H}^{+}}+{{C}_{2}}O_{4}^{2-}\xrightarrow{{}}M{{n}^{2+}}\] \[+\,{{H}_{2}}O+C{{O}_{2}}\] What is happening?

A)

Reduction of Mn

B)

Reduction of \[{{\text{C}}_{\text{2}}}\text{O}_{4}^{2-}\]

C)

Oxidation of Mn

D)

None of these

View Answer
53) In which of the following ionic bond is present?

A)

\[B{{F}_{3}}\]

B)

\[CC{{l}_{4}}\]

C)

\[HCl\]

D)

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

View Answer
54) Deficiency of vitamin E causes:

A)

scurvy

B)

beri-beri

C)

sterility

D)

xerophthalmia

View Answer
55) The reaction of Lucas reagent is fast with:

A)

\[C{{H}_{3}}C{{H}_{2}}OH\]

B)

\[{{(C{{H}_{3}})}_{3}}COH\]

C)

\[{{(C{{H}_{3}})}_{2}}CHOH\]

D)

\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\]

View Answer
56) IUPAC name of the compound is: \[H-\overset{\text{O}}{\mathop{\overset{||}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{2}}-COOH\]

A)

3-oxo-butanoic acid

B)

4-oxo-propanoic acid

C)

3-formyl-propanoic acid

D)

none of the above

View Answer
57) Tollens reagent is:

A)

alkaline \[\text{CuS}{{\text{O}}_{\text{4}}}\]solution

B)

ammoniacal cuproxide solution

C)

aqueous solution of sodium cupritartarate

D)

ammoniacal \[\text{AgN}{{\text{O}}_{\text{3}}}\]solution

View Answer
58) Epsom salt is:

A)

\[MgS{{O}_{4}}.2{{H}_{2}}O\]

B)

\[BaS{{O}_{4}}.2{{H}_{2}}O\]

C)

\[MgS{{O}_{4}}.7{{H}_{2}}O\]

D)

\[CaS{{O}_{4}}.2{{H}_{2}}O\]

View Answer
59) Which of the following carbonate decompose most easily on heating?

A)

\[R{{b}_{2}}C{{O}_{3}}\]

B)

\[{{K}_{2}}C{{O}_{3}}\]

C)

\[N{{a}_{2}}C{{O}_{3}}\]

D)

\[MgC{{O}_{3}}\]

View Answer
60) In an isothermal expansion of an ideal gas:

A)

\[W=0\]

B)

\[\Delta E=0\]

C)

\[q=0\]

D)

\[\Delta V=0\]

View Answer
61) The degree of hydrolysis of \[\text{0}\text{.01 M N}{{\text{H}}_{\text{4}}}\text{C1}\]is:\[({{K}_{h}}=2.5\times {{10}^{-9}})\]

A)

\[5\times {{10}^{-5}}\]

B)

\[5\times {{10}^{-4}}\]

C)

\[5\times {{10}^{-3}}\]

D)

\[5\times {{10}^{-7}}\]

View Answer
62) The number of gram equivalent of \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]in 1000 mL 3M solution, is:

A)

3

B)

6

C)

4

D)

1.5

View Answer
63) The radioactive isotope used in cancer therapy, is

A)

\[{{1}^{128}}\]

B)

\[C{{o}^{60}}\]

C)

\[C{{o}^{59}}\]

D)

\[{{P}^{32}}\]

View Answer
64) The expression of angular momentum of an electron in a Bohrs orbit is:

A)

\[\frac{n}{3}\frac{h}{\pi }\]

B)

\[\frac{n}{2}\frac{h}{\pi }\]

C)

\[\frac{h}{4\pi }\]

D)

\[\sqrt{l(l+1)}.\frac{h}{2\pi }\]

View Answer
65) Which of the following is called Hofmanns bromamide reaction?

A)

\[C{{H}_{3}}CN+2{{H}_{2}}O\xrightarrow{{}}C{{H}_{3}}COO+N{{H}_{3}}\]

B)

\[C{{H}_{3}}CN+4H\xrightarrow{Na/EtOH}C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}\]

C)

\[C{{H}_{3}}CON{{H}_{2}}\xrightarrow{B{{r}_{2}}/NaOH}C{{H}_{3}}N{{H}_{2}}\]

D)

\[C{{H}_{2}}COCl+C{{H}_{3}}OH\xrightarrow{{}}\]\[C{{H}_{3}}COOC{{H}_{3}}+HCl\]

View Answer
66) Which one among the following contains a phenolic-OH group?

A)

Oxalic acid

B)

Formic acid

C)

Picric acid

D)

Citric acid

View Answer
67) In the reaction, product X is: \[C{{H}_{3}}-C\equiv CH+{{H}_{2}}O\xrightarrow{{{H}^{+}}/H{{g}^{2+}}}X\]

A)

\[C{{H}_{3}}C{{H}_{2}}CHO\]

B)

\[C{{H}_{3}}C{{H}_{2}}COOH\]

C)

\[C{{H}_{3}}-C(OH)=CHOH\]

D)

\[C{{H}_{3}}COC{{H}_{3}}\]

View Answer
68) Which is an amphoteric oxide?

A)

\[MgO\]

B)

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

C)

\[A{{l}_{2}}{{O}_{3}}\]

D)

\[CuO\]

View Answer
69) The oxidation number of S in \[{{\text{H}}_{\text{2}}}{{\text{S}}_{\text{2}}}{{\text{O}}_{\text{8}}}\]is:

A)

\[+\,6\]

B)

\[-\,6\]

C)

\[+\,\,4\]

D)

\[+\,\,8\]

View Answer
70) Bleaching powder is obtained by treating chlorine with:

A)

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

B)

\[Ca{{(OH)}_{2}}\]

C)

\[CaO\]

D)

none of these

View Answer
71) For reaction, \[PC{{l}_{3}}(g)+C{{l}_{2}}(g)PC{{l}_{5}}(g)\] the value of \[{{K}_{c}}\]at \[\text{250}{{\,}^{\text{o}}}\text{C}\]is 26. At the same temperature, the value of \[{{K}_{p}}\]is:

A)

0.46

B)

0.61

C)

0.95

D)

0.73

View Answer
72) The volume of a gas is reduced to 1.0 L at \[\text{25}{{\,}^{\text{o}}}\text{C}\]and 1 atm. pressure. Its pressure at \[\text{35}{{\,}^{\text{o}}}\text{C}\]would be:

A)

0.96 atm

B)

1.03 atm

C)

2.04 atm

D)

3.08 atm

View Answer
73) The strongest acid among the following is:

A)

\[C{{H}_{3}}COOH\]

B)

\[C{{H}_{2}}ClCOOH\]

C)

\[C{{H}_{2}}FCOOH\]

D)

\[C{{H}_{3}}C{{H}_{2}}COOH\]

View Answer
74) The compressibility factor for an ideal gas is:

A)

\[<1\]

B)

\[=1\]

C)

\[>1\]

D)

always 2

View Answer
75) The standard reduction potential of \[\text{L}{{\text{i}}^{\text{+}}}\text{,}\,\text{B}{{\text{a}}^{\text{2+}}}\text{,}\,\text{N}{{\text{a}}^{\text{+}}}\]and \[\text{M}{{\text{g}}^{2+}}\]are \[-3.05,-2.73,\]\[-2.71\]and \[-2.37\] volts respectively. Which one is the strongest reducing agent?

A)

Li

B)

Na

C)

Mg

D)

Ba

View Answer
76) The unit of rate constant for 1st order reaction is:

A)

\[mol\,{{L}^{-1}}{{s}^{-1}}\]

B)

\[mo{{l}^{-1}}\,L{{s}^{-1}}\]

C)

\[{{s}^{-1}}\]

D)

\[mo{{l}^{2}}{{L}^{-2}}{{s}^{-1}}\]

View Answer
77) In which of the following, the dipole moment is zero?

A)

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

B)

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

C)

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

D)

\[N{{H}_{3}}\]

View Answer
78) The bond order of \[\text{O}_{\text{2}}^{\text{+}}\] is:

A)

2

B)

2.5

C)

1.5

D)

0.5

View Answer
79) Addition of \[\text{H}\text{gC}{{\text{l}}_{\text{2}}}\]to \[\text{SnC}{{\text{l}}_{\text{2}}}\]gives a black colour due to:

A)

oxidation of Sn

B)

reduction of \[\text{HgC}{{\text{l}}_{\text{2}}}\]

C)

formation of amalgum

D)

oxidation of Hg

View Answer
80) Which one of the following is a trihydric alcohol containing only secondary hydroxyl group?

A)

\[C{{H}_{3}}-\underset{OH}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}OH\]

B)

\[\underset{OH}{\mathop{\underset{|}{\mathop{C{{H}_{2}}}}\,}}\,-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-\underset{OH}{\mathop{\underset{|}{\mathop{C{{H}_{2}}}}\,}}\,\]

C)

\[C{{H}_{3}}-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{3}}\]

D)

None of the above

View Answer
81) How many sigma and n-bonds are there in the following compound? \[C{{H}_{2}}=CH-C\equiv C-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,=C{{H}_{2}}\]

A)

\[11\sigma ,4\pi \]

B)

\[12\sigma ,3\pi \]

C)

\[14\sigma ,4\pi \]

D)

\[15\sigma ,4\pi \]

View Answer
82) In the nitration of benzene, the reactive species is:

A)

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

B)

\[NO_{2}^{+}\]

C)

\[NO_{2}^{-}\]

D)

\[N{{O}^{-}}\]

View Answer
83) Reaction of phenol with \[\text{CC}{{\text{l}}_{\text{4}}}\]and\[\text{NaOH,}\] followed by hydrolysis is likely to give:

A)

B)

C)

D)

View Answer
84) In the reaction,\[{{\,}_{\text{92}}}{{\text{U}}^{\text{238}}}\xrightarrow{{}}{{\,}_{\text{82}}}\text{P}{{\text{b}}^{\text{206}}}\text{,}\] the number of\[\alpha \]and \[\beta -\]particles emitted are:

A)

\[7\alpha ,5\beta \]

B)

\[6\alpha ,4\beta \]

C)

\[4\alpha ,3\beta \]

D)

\[8\alpha ,6\beta \]

View Answer
85) Which is the correct Gibbs Helmholtz equation?

A)

\[\Delta H=\Delta G-T.\Delta S\]

B)

\[\Delta S=\frac{1}{T}[\Delta G-\Delta H]\]

C)

\[\Delta S=\frac{1}{T}[\Delta H-\Delta G]\]

D)

\[-\Delta G=\Delta H-T.\Delta S\]

View Answer
86) Vinegar is:

A)

8-10% acetic acid,

B)

6-10% ethyl alcohol

C)

glacial acetic acid

D)

10% formic acid

View Answer
87) Decreasing order of - electron affinity of halogens is:

A)

\[Cl>Br>F>I\]

B)

\[Cl>F>Br>I\]

C)

\[Br>Cl>F>I\]

D)

\[F>Cl>Br>I\]

View Answer
88) Which of the following is an acidic salt?

A)

\[N{{a}_{2}}S{{O}_{4}}\]

B)

\[Pb(OH)Cl\]

C)

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

D)

\[N{{a}_{2}}HP{{O}_{4}}\]

View Answer
89) Which one is the Lewis acid?

A)

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

B)

\[AlC{{l}_{3}}\]

C)

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

D)

\[N{{H}_{3}}\]

View Answer
90) 720 g water contain the number of moles:

A)

2

B)

190

C)

40

D)

55

View Answer
91) \[2HCHO\xrightarrow{50%\,NaOH}C{{H}_{3}}OH+HCOONa\] This reaction is called:

A)

aldol condensation

B)

Tischenko reaction

C)

Cannizaro reaction

D)

Reimer Tiemann reaction

View Answer
92) The geometry of the molecule having s and \[p-\]characters equal to 25% and 75% respectively, is:

A)

trigonal

B)

linear

C)

tetrahedral

D)

octahedral

View Answer
93) Impossible configuration is:

A)

\[1{{s}^{2}},2{{s}^{2}}2{{p}^{2}},3{{s}^{2}}\]

B)

\[1{{s}^{2}},2{{s}^{2}}\]

C)

\[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}}\]

D)

none of these

View Answer
94) The solubility product of \[\text{PbB}{{\text{r}}_{\text{2}}}\]is \[\text{10}\text{.8}\times {{10}^{-5}}.\] It is 70% dissociated in saturated solution. The solubility of salt is:

A)

\[4.18\times {{10}^{-2}}\]

B)

\[6.76\times {{10}^{-3}}\]

C)

\[3.4\times {{10}^{-4}}\]

D)

\[5.44\times {{10}^{-2}}\]

View Answer
95) The latent heat of vaporisation of water is \[540\,\text{cal}\,{{\text{g}}^{-1}}\]at \[\text{100}{{\,}^{\text{o}}}\text{C}\text{.}\] What will be the entropy increase when one mole of water is evaporated at \[\text{100}{{\,}^{\text{o}}}\text{C?}\]

A)

\[28\,cal\,{{K}^{-1}}\,mo{{l}^{-1}}\]

B)

\[26\,cal\,{{K}^{-1}}\,mo{{l}^{-1}}\]

C)

\[540\,cal\,{{K}^{-1}}mo{{l}^{-1}}\]

D)

\[1.82\,cal\,{{K}^{-1}}mo{{l}^{-1}}\]

View Answer
96) The brown ring in the test of nitrate is formed due to:

A)

\[{{[Fe{{({{H}_{2}}O)}_{5}}N{{O}_{2}}]}^{2+}}\]

B)

\[Fe{{(N{{O}_{3}})}_{3}}\]

C)

\[{{[Fe{{({{H}_{2}}O)}_{5}}NO]}^{2+}}\]

D)

\[{{[Fe({{H}_{2}}O){{(NO)}_{5}}]}^{2+}}\]

View Answer
97) The corrosive sublimate is:

A)

Hg

B)

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

C)

\[H{{g}_{2}}C{{l}_{2}}\]

D)

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

View Answer
98) The half-life of radium is 1580 yr. Its average life is:

A)

\[2.275\times {{10}^{3}}yr\]

B)

\[3.735\times {{10}^{2}}yr\]

C)

\[1.62\times {{10}^{3}}yr\]

D)

\[7.28\times {{10}^{2}}yr\]

View Answer
99) Cobalt is present in:

A)

vitamin\[{{B}_{12}}\]

B)

vitamin\[{{B}_{6}}\]

C)

vitamin \[{{B}_{2}}\]

D)

vitamin\[{{B}_{1}}\]

View Answer
100) Adipic acid and hexamethylene diamine, on polymerisation gives:

A)

nylon-6

B)

Dacron

C)

nylon-66

D)

Bakelite

View Answer
101) Reserpine is obtained from:

A)

Asafoetida

B)

Rauwolfia serpentine

C)

Curcuma longa

D)

Papaver somniferum

View Answer
102) Seed coat is derived from:

A)

pericarp

B)

epicarp

C)

integuments of ovule

D)

nucellus

View Answer
103) A characteristic feature of ovary of Brassica compesrris is:

A)

presence of replum

B)

axile placentation

C)

epigynous

D)

multilocular nature

View Answer
104) One of the characteristic of Hydra is:

A)

predation

B)

metamerism

C)

hibernation

D)

mimicry

View Answer
105) Which of the following pair lack the unit membrane?

A)

Nucleus and ER

B)

Mitochondria and chloroplast

C)

Ribosomes and nucleolus

D)

Golgi body and lysosome

View Answer
106) The number of DNA in chromosome at \[{{\text{G}}_{2}}\] stage:

A)

one

B)

two

C)

four

D)

eight

View Answer
107) Which of the following is a disaccharide?

A)

Glucose

B)

Fructose

C)

Sucrose

D)

Galactose

View Answer
108) Hydrolysis of lipid yields:

A)

fatty acids and maltose

B)

fatty acids and glycerol

C)

mannose and glycerol

D)

maltose and fatty acid

View Answer
109) Ctenophora shows affinities with:

A)

Cnidaria

B)

Aschelminthes

C)

Cephalopoda

D)

Turbelaria

View Answer
110) Exception of MendeFs law is:

A)

independent assortment

B)

linkage

C)

purity of gametes

D)

none of the above

View Answer
111) The position of protoxylem in leaf is:

A)

adaxial

B)

abaxial

C)

surrounded by metaxylem

D)

lateral

View Answer
112) In Pheretima, locomotion occurs with the help of:

A)

circular muscles

B)

longitudinal muscles and setae

C)

circular, longitudinal muscles and setae

D)

parapodia

View Answer
113) In Amoeba which controls the cytoplasmic osmality?

A)

nucleus

B)

ectoplasm

C)

biurets

D)

contractile vacuole

View Answer
114) Branched, aseptate, coenocytic mycelium present in:

A)

Aspergillus

B)

Albugo

C)

Penicillium

D)

Erysiphe

View Answer
115) The economically important plant of Malvaceae:

A)

Gossypium hirsutum

B)

Hibiscus cannabis

C)

Abelmoschus esculentus

D)

All of the above

View Answer
116) The cells without nuclei are present in:

A)

vascular cambium

B)

root hair

C)

companion cell

D)

members of sieve tube

View Answer
117) Which of the following is not correctly matched?

A)

Rhinencephalon- Olfactory

B)

Hypothalamus- Pituitary

C)

Cerebellum- Balance

D)

Medulla oblongata - Temperature regulation

View Answer
118) The scientist who was awarded Nobel Prize in 1959   for   in   vitro   synthesis   of polyribonucleotide?

A)

Mendel

B)

Calvin

C)

Khorana

D)

Ochoa

View Answer
119) Which of the following have sunken stomata?

A)

Nerium

B)

Mangifera

C)

Hydrilla

D)

Zeamays

View Answer
120) When a plasmolysed cell is placed in a hypotonic solution then water will move inside the cell. Which force causes this?

A)

DPD

B)

O.P

C)

WP

D)

None of these

View Answer
121) Group of two or more than two plants species is called as:

A)

plant community

B)

animal ecosystem

C)

plant ecosystem

D)

ecological niche

View Answer
122) Which type of kidneys are found in amphibians?

A)

Holonephric

B)

Mesonephric

C)

Pronephric

D)

Metanephric

View Answer
123) Which part of cell have enzymes for glycolysis?

A)

Cytoplasm

B)

Mitochondria

C)

Golgi complex

D)

Nucleus

View Answer
124) Botanical name of species which cause white rust of crucifers?

A)

Peronospora parasitica

B)

Puccinia graminis

C)

Pythium debaryanum

D)

Albugo Candida

View Answer
125) Which of the following nerve supplies organ of Cord?

A)

Auditory

B)

Olfactory

C)

Trochlear

D)

Vagus

View Answer
126) A pond is a:

A)

biome

B)

natural ecosystem

C)

artificial ecosystem

D)

community of plants and animals

View Answer
127) Which one of the following body functions is not performed by kidneys?

A)

Excretion

B)

Osmoregulation

C)

Regulation of blood volume

D)

Destruction of dead blood corpuscles

View Answer
128) The study of fossils is called:

A)

Palynology

B)

Palaeontology

C)

Fossil systematic

D)

Pharmacognosy

View Answer
129) The characteristic of blue-green algae is:

A)

DNA without histone

B)

nuclear membrane absent

C)

70S ribosome

D)

all of the above

View Answer
130) Classification of sponges is primarily based on the:

A)

body organisation

B)

body plan

C)

skeleton

D)

canal system

View Answer
131) In mammals corpus luteum is found in which organ?

A)

Brain

B)

Ovary

C)

Liver

D)

Eyes

View Answer
132) Which character is found only in mammals?

A)

Neck

B)

Diaphragm

C)

Optic lobes of brain

D)

Tail

View Answer
133) Which of the following is not correct for gastrulation?

A)

Archenteron is formed

B)

All germinal layers are formed

C)

Morphogenetic movements

D)

Some blastomeres and blastocoel degenerate

View Answer
134) The chemical formula of starch is:

A)

\[{{({{C}_{6}}{{H}_{10}}{{O}_{5}})}_{n}}\]

B)

\[{{({{C}_{6}}{{H}_{12}}{{O}_{6}})}_{n}}\]

C)

\[{{C}_{12}}{{H}_{22}}{{O}_{11}}\]

D)

\[C{{H}_{3}}COOH\]

View Answer
135) Which of the following is used during discovery of Calvin cycle?

A)

Spirogyra

B)

Volvox

C)

Chlamydomonas

D)

Chlorella

View Answer
136) Respiratory quotient of which diet is less than unity?

A)

Carbohydrate

B)

Fats

C)

Organic acids

D)

Sugar

View Answer
137) Velamen and spongy tissue is found in:

A)

breathing roots

B)

parasitic

C)

tuberous roots

D)

epiphytic roots

View Answer
138) The function of clitellum in Pheretima is:

A)

formation of cocoon

B)

secretion of hormone

C)

nutrition of sperm

D)

respiration

View Answer
139) Which of the following is not a function of water in cell?

A)

It provides energy for chemical reaction

B)

It act as a solvent

C)

It provides a medium for chemical reaction

D)

It release hydrogen ions on ionization

View Answer
140) In which of the following reptiles four chambered heart is present?

A)

Lizard

B)

Snake

C)

Scorpion

D)

Crocodile

View Answer
141) Rate of transpiration is measured by:

A)

nanometer

B)

auxanometer

C)

pofometer

D)

barometer

View Answer
142) Pigments present in chloroplast of Ulothrix:

A)

chlorophyll-a, chl. b, fucoxanthin \[\beta -\]carotene

B)

chl. a, chl. b, chl. c, c-phycocyanin, c-phycoerythrin

C)

chl. a, chl. b, \[\beta -\]carotene, xanthophyll

D)

chl. a, chl. b, r-phycocyanin r-phycoerythrin

View Answer
143) In Mirabilis a hybrid for red (RR) and white (rr) flower produces pink (Rr) flower. A plant with pink flower is crossed with white flower the expected phenotypic ratio is:

A)

red: pink : white (1 : 2:1)

B)

pink: white : (1 : 1)

C)

red: pink (1:1)

D)

red: pink (3:1)

View Answer
144) Which of the following is the site of lipid synthesis?

A)

Rough ER

B)

Smooth ER

C)

Golgi bodies

D)

Ribosome

View Answer
145) Which of the following vessel in rabbit starts with capillaries and ends in capillaries?

A)

Pulmonary artery

B)

Renal vein

C)

Hepatic portal vein

D)

Renal artery

View Answer
146) Which character is not same in aves and mammals?

A)

Single systemic arch

B)

Metaneptiric kidney

C)

Seven cervical vertebrae

D)

Homiotherms

View Answer
147) What is pollen grain?

A)

Microspore mother cell

B)

Male gamete

C)

Male gametophyte

D)

Partially developed embryo

View Answer
148) Solenocytes and nephridia are respectively found in:

A)

Platyhelminth and Annelids

B)

Annelids and Nematoda

C)

Cnidaria and Mollusca

D)

Mollusca and Echinodermata

View Answer
149) If a cell shrinks when placed in a solution, this solution is:

A)

hypotonic

B)

hypertonic

C)

isotonic

D)

mesotonic

View Answer
150) Aquatic reptiles are:

A)

ammonotelic

B)

ureotelic

C)

ureotelic in water

D)

ureotelic over land

View Answer

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