Solved papers for JCECE Medical JCECE Medical Solved Paper-2006

JCECE Medical Solved Paper-2006 Total Questions - 150

1) Which of the following rays can be polarised?

A)

Water wave and sound wave

B)

Sound wave and radio wave

C)

X-rays and water wave

D)

Light wave and X-ray

View Answer
2) Quantum nature can prove :

A)

Interference

B)

photoelectric effect

C)

diffraction

D)

polarization

View Answer
3) Which one has highest binding energy per nucleon?

A)

\[F{{e}^{56}}\]

B)

\[L{{i}^{6}}\]

C)

\[{{U}^{235}}\]

D)

\[C{{a}^{40}}\]

View Answer
4) Huygens wave theory cant explain:

A)

interference

B)

photoelectric-effect

C)

diffraction

D)

all of these

View Answer
5) If the refractive index of a glass prism is cot (A/2) and A is angle of prism, then angle of minimum deviation is:

A)

\[\left( \frac{\pi }{2}-A \right)\]

B)

\[\left( 2\pi -\frac{A}{2} \right)\]

C)

\[\left( \frac{\pi -A}{2} \right)\]

D)

\[(\pi -2A)\]

View Answer
6) If\[f\] is the frequency when mass m is attached to a spring of spring constant\[k,\]then new frequency for this arrangement, is:

A)

\[f/2\]

B)

\[\sqrt{2f}\]

C)

\[f/\sqrt{2}\]

D)

\[2\sqrt{2f}\]

View Answer
7) What is equivalent capacitance of the network? Each capacitor has \[\text{1}\,\text{ }\!\!\mu\!\!\text{ F}\]capacitance:

A)

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

B)

\[2\mu F\]

C)

\[\frac{3}{2}\mu F\]

D)

\[3\mu F\]

View Answer
8) The two capacitors \[{{\text{C}}_{\text{1}}}\]and \[{{\text{C}}_{\text{2}}}\]are charged to potentials\[{{\text{V}}_{1}}\]and\[{{\text{V}}_{2}}\] and then connected in parallel. There will be no flow of energy, if:

A)

\[{{C}_{1}}{{V}_{1}}={{C}_{2}}{{V}_{2}}\]

B)

\[{{V}_{1}}={{V}_{2}}\]

C)

\[{{C}_{1}}=C{{ }_{2}}\]

D)

\[\frac{{{C}_{1}}}{{{V}_{1}}}=\frac{{{C}_{2}}}{{{V}_{2}}}\]

View Answer
9) Which is not the unit of electric field?

A)

\[\frac{N}{C}\]

B)

\[\frac{N-m}{C}\]

C)

\[\frac{V}{m}\]

D)

\[\frac{J}{C-m}\]

View Answer
10) If a body moves for 2 s with 15 m/s velocity towards east and then moves with 5 m/s velocity for 8 s towards north, then average velocity is :

A)

5 m/s

B)

15 m/s

C)

30 m/s

D)

7.5 m/s

View Answer
11) For monoatomic gas which is correct?

A)

\[{{C}_{V}}=\frac{3}{5}R\]

B)

\[{{C}_{P}}=\frac{5}{2}R\]

C)

\[{{C}_{P}}-{{C}_{V}}=2R\]

D)

\[\frac{{{C}_{P}}}{{{C}_{V}}}=\frac{3}{5}\]

View Answer
12) Which is correct relationship for diode?

A)

B)

C)

D)

View Answer
13) In a properly biased transistor:

A)

both depletion layers are equally large

B)

both depletion layers are equally small

C)

emitter-base depletion layer is large but base-collector depletion layer is small

D)

emitter-base depletion layer is small but base-collector depletion layer is large

View Answer
14) A wire has resistance \[20\,\Omega .\] If its length is increased three times its initial length, then new resistance is:

A)

\[40\,\Omega .\]

B)

\[80\,\Omega .\]

C)

\[60\,\Omega .\]

D)

\[180\,\Omega .\]

View Answer
15) A circular coil of diameter d is rotated in electric field such that electric flux is changed from zero to maximum value \[\text{o }\!\!|\!\!\text{ }\] then, electric field is:

A)

\[\frac{\text{o }\!\!|\!\!\text{ }}{\pi {{d}^{2}}}\]

B)

\[\frac{\text{2o }\!\!|\!\!\text{ }}{\pi {{d}^{\,2}}}\]

C)

\[\frac{4{{d}^{2}}}{\pi \text{o}{{\text{ }\!\!|\!\!\text{ }}^{\,2}}}\]

D)

\[\frac{4\text{o }\!\!|\!\!\text{ }}{\pi {{d}^{2}}}\]

View Answer
16) Work done in rotating a bar magnet from 0 to angle \[\text{ }\!\!\theta\!\!\text{ }\] is:

A)

\[MH(1-cos\theta )\]

B)

\[\frac{M}{H}(1-cos\theta )\]

C)

\[\frac{M}{H}(cos\theta -1)\]

D)

\[MH(cos\theta -1)\]

View Answer
17) If a convex lens of refractive index 1.44 is dipped in liquid of refractive index 1.49, then it behaves as:

A)

concave lens

B)

convex lens

C)

mirror

D)

none of these

View Answer
18) If a source approaches and recedes from observer with same velocity, the ratio of frequencies (apparent) is 6 : 5, then velocity of source is: \[({{v}_{s}}=330\,m/s)\]

A)

20 m/s

B)

10 m/s

C)

30 m/s

D)

33 m/s

View Answer
19) If a boy swings in a circle so the minimum and maximum height from ground is 3 m and 6 m, then, its maximum velocity is:

A)

\[5\sqrt{2}\,m/s\]

B)

\[2\sqrt{5}\,m/s\]

C)

\[3\sqrt{5}\,m/s\]

D)

\[5\sqrt{3}\,m/s\]

View Answer
20) If percentage decrease in radius of earth is 1% without changing its mass, then percentage change in acceleration due to gravity is:

A)

2% decrease

B)

2% increase

C)

1% decrease

D)

1% increase

View Answer
21) A black body radiates at two temperatures \[{{T}_{1}}\]and \[{{T}_{2}}\]such that \[{{T}_{1}}<{{T}_{2}}.\]The frequency corresponding to maximum intensity is:

A)

less at \[{{T}_{1}}\]

B)

more at \[{{T}_{1}}\]

C)

equally in the two cases

D)

cannot say

View Answer
22) If temperature is increased by 1 K at constant volume, then work done on the gas is:

A)

\[\frac{5}{2}R\]

B)

\[\frac{3}{2}R\]

C)

zero

D)

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

View Answer
23) A body cools from \[\text{75}{{\,}^{\text{o}}}\text{C}\]to \[\text{70}{{\,}^{\text{o}}}\text{C}\]in time \[{{t}_{1}},\]from \[\text{70}{{\,}^{\text{o}}}\text{C}\]to \[65{{\,}^{o}}C\]in time\[{{t}_{2}}\]and from \[65{{\,}^{o}}C\]to \[60{{\,}^{o}}C\]in time \[{{t}_{3}},\] then:

A)

\[{{t}_{3}}>{{t}_{2}}>{{t}_{1}}\]

B)

\[{{t}_{1}}>{{t}_{2}}>{{t}_{3}}\]

C)

\[{{t}_{2}}>{{t}_{1}}={{t}_{3}}\]

D)

\[{{t}_{1}}>{{t}_{2}}>{{t}_{3}}\]

View Answer
24) A gas is at\[\text{2}{{\text{7}}^{\text{o}}}\text{C}\text{.}\] Its volume is doubled keeping pressure constant, then final temperature is:

A)

\[600{{\,}^{o}}C\]

B)

327 K

C)

\[327{{\,}^{o}}C\]

D)

\[~273{{\,}^{o}}C\]

View Answer
25) If the volume of gas is changed from \[{{V}_{1}}\]to \[{{V}_{2}}\]isothermally, then work done is:

A)

\[RT\,\ln \frac{{{V}_{1}}}{{{V}_{2}}}\]

B)

\[RT\,\ln \frac{{{V}_{2}}}{{{V}_{1}}}\]

C)

\[R({{T}_{2}}-{{T}_{1}})ln\frac{{{V}_{2}}}{{{V}_{1}}}\]

D)

\[R({{V}_{2}}-{{V}_{1}})ln\frac{{{T}_{2}}}{{{T}_{1}}}\]

View Answer
26) If energy is supplied to a gas isochorically, increase in internal energy is \[dU\]then:

A)

\[dQ=dU+dW\]

B)

\[dQ=dU-dW\]

C)

\[dQ=dU\]

D)

\[dQ=-dU\]

View Answer
27) A nucleus \[_{\text{Z}}^{\text{A}}\text{X}\]emits one \[\alpha \]and \[2\beta \] particles, then final nucleus is:

A)

\[Y_{Z}^{A}-2\]

B)

\[Y_{Z-4}^{A-4}\]

C)

\[Y_{Z}^{A-4}\]

D)

\[X_{Z}^{A}\]

View Answer
28) The fringe width for red light is approximately how many times that for violet light in Youngs slit experiment?

A)

2 times

B)

3 times

C)

Equal

D)

1/2 times

View Answer
29) A person sees clearly at a distance of 100 cm, then power of lens used to see object at 40 cm is:

A)

3D

B)

\[-3D\]

C)

\[~-1.5\text{ }D\]

D)

\[4-1.5\text{ }D\]

View Answer
30) The electric potential Vis given as a function of distance \[x\](metre) by \[V=(5{{x}^{2}}+10x-4)V.\]Value of electric field at \[x=1\,m\]is:

A)

\[-23\,V/m\]

B)

\[11\,\,V/m\]

C)

\[6\,V/m\]

D)

\[-20\,V/m\]

View Answer
31) In an image convenor tube fluorescent material is bombarded by:

A)

visible radiation

B)

electron radiation

C)

infrared radiation

D)

ultra violet radiation

View Answer
32) A particle executes, simple harmonic motion with a frequency\[f.\] The frequency with which its kinetic energy oscillates is:

A)

\[f/2\]

B)

\[f\]

C)

\[2f\]

D)

\[4f\]

View Answer
33) The work done by the centripetal force F when the body completes one rotation around the circle of radius R is:

A)

\[2\pi RF\]

B)

\[~2RF\]

C)

RF

D)

zero

View Answer
34) The unit mass having \[\vec{r}=8\hat{i}-4\hat{j}\]and \[\vec{v}=8\hat{i}+4\hat{j}\]in its angular momentum is:

A)

64 unit in \[-\,\hat{k}\]direction

B)

64 unit in \[+\,\hat{k}\]direction

C)

64 unit in \[+\,\hat{j}\]direction

D)

64 unit in \[-\,\,\hat{i}\] direction.

View Answer
35) Which is nuclear fusion direction?

A)

Hydrogen to helium

B)

Uranium to krypton

C)

Hydrogen to water

D)

Neutron to proton

View Answer
36) If an AC produces same heat as that produced by a steady current of 4 A, then peak value of current is:

A)

4 A

B)

1.56 A

C)

5.6 A

D)

1.41 A

View Answer
37) In LCR circuit\[f=\frac{50}{\pi }Hz,\,V=50\,\text{volt,}\]\[\,\text{R}\,\text{=}\,\text{300}\,\Omega .\] If\[\text{L}\,\text{=}\,\text{1}\,\text{H}\]and \[C=20\,\mu C,\]then voltage across capacitor is:

A)

zero

B)

20 V

C)

30 V

D)

50 V

View Answer
38) If two forces each of 2 N are inclined at \[\text{6}{{\text{0}}^{\text{o}}}\text{,}\] then resultant force is:

A)

2N

B)

\[2\sqrt{5}\,N\]

C)

\[3\sqrt{2}\,N\]

D)

\[4\sqrt{2}\,N\]

View Answer
39) A block of mass 10 kg is placed on a rough horizontal surface whose coefficient of friction is 0.5. If a horizontal force of 100 N is applied on it, then acceleration of block will be:

A)

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

B)

\[5\,m/{{s}^{2}}\]

C)

\[15\text{ }m/{{s}^{2}}\]

D)

\[~0.5\,m/{{s}^{2}}\]

View Answer
40) The potential difference across an instrument in an AC circuit of frequency \[f\] is V and the current through it is \[I\] such, that \[V=5\cos \,2\pi ft\,\text{volt}\] and\[I=2\sin 2\pi ft\] amp. The power dissipated in the instrument is:

A)

zero

B)

10 W

C)

5 W

D)

2.5 W

View Answer
41) If ratio of intensities of interfering waves is 16: 9, then ratio of maximum to minimum intensity is:

A)

49 : 1

B)

225 : 81

C)

3:1

D)

9:1

View Answer
42) The power of a lens, a short sighted person uses is -2 D. Find the maximum distance of an object which he can see without spectacles:

A)

25 cm

B)

50 cm

C)

100 cm

D)

10 cm

View Answer
43) The first overtone frequency of a wave on string of length 2 m is 250 Hz. Then, its velocity is:

A)

1000 m/s

B)

25 m/s

C)

500 m/s

D)

10 m/s

View Answer
44) What is the current flowing in arm AB?

A)

\[\frac{35}{4}A\]

B)

\[\frac{13}{7}A\]

C)

\[\frac{5}{7}A\]

D)

\[\frac{7}{5}A\]

View Answer
45) A projectile is fired making an angle \[2\theta \]with horizontal with velocity 4 m/s. At any instant it makes an angle \[\theta ,\] then its velocity is:

A)

\[4\cos \theta \]

B)

\[4(2cos\theta -sec\theta )\]

C)

\[(2cos\theta +4sec\theta )\]

D)

\[4(sec\theta +cos\theta )\]

View Answer
46) If path difference becomes \[(2n-1)\frac{\lambda }{2}\]then: 2»

A)

white fringe is formed

B)

bright fringe is formed

C)

uniform illumination is obtained

D)

dark fringe is formed

View Answer
47) If the intensity of fringe at wavelength\[\lambda \] is \[K,\]then its intensity at wavelength\[\lambda /2\]is:

A)

\[\frac{K}{2}\]

B)

\[K\]

C)

zero

D)

\[\sqrt{2}K\]

View Answer
48) A positively charged particle moving with velocity v enters a region of space having a uniform magnetic field B. The particle will experience the large deflecting force, when the angle between v and B is:

A)

\[{{0}^{o}}\]

B)

\[{{45}^{o}}\]

C)

\[{{90}^{o}}\]

D)

\[{{180}^{o}}\]

View Answer
49) In a step-up transformer the turn ratio is 1:8. A lead accumulator \[(emf=6V)\] is connected across the primary coil of the .transformer. The voltage across the secondary coil is:

A)

48 V

B)

0.75 V

C)

14 V

D)

zero

View Answer
50) The mass of a lift is 500 kg. When it ascends with an acceleration of \[\text{2}\,\text{m/}{{\text{s}}^{\text{2}}}\text{,}\] the tension in the cable will be: \[\text{(g}\,\text{=}\,\text{10}\,\text{m/}{{\text{s}}^{2}}\text{)}\]

A)

6000 N

B)

5000 N

C)

4000 N

D)

1000 N

View Answer
51) A water molecule can form maximum number of H-bond which is equal to:

A)

1

B)

2

C)

3

D)

4

View Answer
52) Bond angle in \[{{\text{H}}_{\text{2}}}\text{O}\]is:

A)

\[{{109}^{o}}28\]

B)

\[{{107}^{o}}10\,\]

C)

\[104.5{{\,}^{o}}\]

D)

\[{{92}^{o}}\]

View Answer
53) Calamine is:

A)

\[ZnS\]

B)

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

C)

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

D)

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

View Answer
54) Which is extremely stable?

A)

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

B)

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

C)

\[NB{{r}_{3}}\]

D)

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

View Answer
55) \[\text{C}{{\text{H}}_{\text{3}}}\text{COCl}\]does not react with:

A)

diethyl ether

B)

phenol

C)

ethanol

D)

aniline

View Answer
56) In \[\text{S}{{\text{O}}_{\text{2}}}\]hybridisation is:

A)

\[sp\]

B)

\[s{{p}^{3}}\]

C)

\[ds{{p}^{2}}\]

D)

\[s{{p}^{2}}\]

View Answer
57) Lowest melting point chloride is:

A)

\[\text{LiCl}\]

B)

\[\text{NaCl}\]

C)

\[\text{KCl}\]

D)

\[\text{CsCl}\]

View Answer
58) Half-life of a substance is 6 min. If its initial amount is 32 g, then amount present after 18 minis:

A)

4g

B)

8g

C)

16g

D)

2g

View Answer
59) If calcium acetate and calcium formate react, then product formed is:

A)

acetaldehyde

B)

acetic acid

C)

formic acid

D)

ethyl formate

View Answer
60) Reduction with aluminium isopropoxide in excess of isopropyl alcohol is called Meerwein Pondorf Verley reduction (MPV). What will be the firal product when cyclohex-2-enone is selectively reduced in MPV reaction?

A)

Cyclohexanol

B)

Cyclohex-2-enol

C)

Cyclohexanone

D)

Benzene

View Answer
61) If pH of a solution is 4, then \[{{\text{H}}^{\text{+}}}\]is:

A)

\[\text{1}{{\text{0}}^{4}}\]

B)

\[\text{1}{{\text{0}}^{10}}\]

C)

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

D)

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

View Answer
62) When sodium nitrate is heated above \[\text{600}{{\,}^{\text{o}}}\text{C,}\]then:

A)

only \[\text{N}{{\text{a}}_{\text{2}}}\text{O}\]is formed

B)

only \[{{\text{N}}_{2}}\]is formed

C)

only\[{{\text{O}}_{\text{2}}}\] is formed

D)

all are formed

View Answer
63) Which of the following produces \[\text{C}{{\text{l}}_{2}}\]gas?

A)

\[\text{NaCl}\,\text{+}\,\text{HN}{{\text{O}}_{\text{3}}}\]

B)

\[\text{Mn}{{\text{O}}_{\text{2}}}\text{+}\,\text{HCl}\]

C)

\[\text{KMn}{{\text{O}}_{\text{4}}}\text{+}\,\text{HCl}\]

D)

\[\text{HCl}\,\text{+}\,\text{HN}{{\text{O}}_{\text{3}}}\]

View Answer
64) Which is correctly arranged as increasing size?

A)

\[F<O<C<Cl<Br\]

B)

\[C<O<F<Cl<Br\]

C)

\[Cl<Br<F<C<O\]

D)

\[O<F<C<Cl<Br\]

View Answer
65) \[\text{N}{{\text{H}}_{\text{3}}}\]is absorbed by:

A)

ozone

B)

\[\text{CaO}\]

C)

pyrargallol

D)

\[\text{CaC}{{\text{l}}_{\text{2}}}\]

View Answer
66) \[\text{1}\text{.25}\,\text{g}\,\text{N}{{\text{H}}_{\text{3}}}\]contains how many atoms?

A)

\[{{10}^{23}}\]

B)

\[2\times {{10}^{23}}\]

C)

\[6\times {{10}^{13}}\]

D)

\[4\times {{10}^{23}}\]

View Answer
67) Which of the following has smallest bond angle?

A)

Ethane

B)

Ethene

C)

Ethyne

D)

Ethanol

View Answer
68) Chloroform in air is oxidised to:

A)

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

B)

dichloromethane

C)

phosgene

D)

oxygen

View Answer
69) Gypsum is:

A)

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

B)

\[CaS{{O}_{4}}.\frac{1}{2}{{H}_{2}}O\]

C)

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

D)

\[CuS{{O}_{4}}\]

View Answer
70) Which is not soluble in water?

A)

\[PbS{{O}_{4}}\]

B)

\[CdS{{O}_{4}}\]

C)

\[Bi{{(S{{O}_{4}})}_{2}}\]

D)

\[CuS{{O}_{4}}\]

View Answer
71) Which of the following is colour red?

A)

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

B)

\[CuF\]

C)

\[Zn{{F}_{2}}\]

D)

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

View Answer
72) How many unpaired electrons are present in \[[Cr{{(NH)}_{3}}]B{{r}_{3}}\]

A)

1

B)

2

C)

3

D)

4

View Answer
73) \[S+\frac{3}{2}{{O}_{2}}\xrightarrow{{}}S{{O}_{3}}\,\Delta H=y,\] then heat of formation of \[\text{S}{{\text{O}}_{\text{2}}}\]is:

A)

\[~2x-y\]

B)

\[~2x+y\]

C)

\[~x+y\]

D)

\[\frac{2x-y}{2}\]

View Answer
74) Reagent (catalyst) used in Friedel-Crafts alkylation reaction is:

A)

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

B)

\[\text{anhyd}\text{.}\,\,\text{AlC}{{\text{l}}_{\text{3}}}\]

C)

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

D)

\[He\]

View Answer
75) Catalyst used in making\[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\] in contact process is:

A)

\[{{\text{V}}_{\text{2}}}{{\text{O}}_{\text{5}}}\]

B)

\[F{{e}_{2}}{{O}_{3}}\]

C)

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

D)

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

View Answer
76) When acetamide is reacted with \[\text{NaOBr,}\]then product formed is:

A)

ethanamine

B)

methanamine

C)

methanamide

D)

ethanenitrile

View Answer
77) Isocyanide is prepared by:

A)

Friedel Crafts reaction

B)

Wurtzs reaction

C)

Williamson synthesis

D)

Carbylamine reaction

View Answer
78) If rate of diffusion of \[\text{C}{{\text{H}}_{\text{4}}}\]is twice than that of a gas\[x,\] then its molecular mass is:

A)

64 g

B)

16 g

C)

32 g

D)

8 g

View Answer
79) Which one is not Lewis acid?

A)

\[Be{{F}_{2}}\]

B)

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

C)

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

D)

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

View Answer
80) Natural gas mainly consists of:

A)

methane

B)

butane

C)

propane

D)

ethane + octane

View Answer
81) Phenol is treated with Zn to form:

A)

benzoic acid

B)

benzyl alcohol

C)

benzene

D)

benzoquinone

View Answer
82) Which one is isoelectronic with\[\text{CO}\]?

A)

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

B)

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

C)

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

D)

\[NO\]

View Answer
83) How much volume of \[\text{1M}\,{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]is required to neutralize 20 mL of\[\text{1M}\,\text{NaOH}\]?

A)

10 mL

B)

20 mL

C)

5mL

D)

15 mL

View Answer
84) Fentons reagent is:

A)

\[\text{SnC}{{\text{l}}_{\text{2}}}\text{+}\,\text{HCl}\]

B)

\[AgN{{O}_{3}}+N{{H}_{4}}OH\]

C)

\[CuS{{O}_{4}}+NaOH\]

D)

\[FeS{{O}_{4}}+{{H}_{2}}{{O}_{2}}\]

View Answer
85) \[C{{u}^{2}}+Ag\xrightarrow{{}}Cu+A{{g}^{+}}\]oxidation half reaction is:

A)

\[C{{u}^{2+}}\to Cu\]

B)

\[Ag\to A{{g}^{+}}\]

C)

\[Cu\to C{{u}^{2+}}\]

D)

all of these

View Answer
86) \[{{\text{C}}_{\text{4}}}{{\text{H}}_{\text{10}}}\text{O}\]has how many isomeric alcohols?

A)

1

B)

2

C)

3

D)

4

View Answer
87) IUPAC name of \[C{{H}_{3}}-C\equiv C-HC-{{(C{{H}_{3}})}_{2}}\] is:

A)

\[4-\]methyl\[-2-\]pentyne

B)

\[1,1-\] dimethyl\[-2-\]butyne

C)

\[2-\]methyl\[-4-\]pentyne

D)

\[4,4-\]dimethyl\[-2-\]butyne

View Answer
88) Fehling test is given by:

A)

glucose

B)

fructose

C)

sucrose

D)

all of these

View Answer
89) Number of isomeric primary amine of molecular formula \[{{\text{C}}_{\text{4}}}{{\text{H}}_{\text{11}}}\text{N}\]is:

A)

1

B)

2

C)

3

D)

4

View Answer
90) For reaction \[3X+Y{{X}_{3}}Y\] \[\Delta H=+\,ve,\] amount of \[{{X}_{3}}Y\]can be changed by:

A)

changing temperature

B)

changing pressure

C)

changing temperature, pressure,

D)

changing temperature, pressure, adding catalyst

View Answer
91) Which one is most ionic?

A)

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

B)

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

C)

\[M{{n}_{2}}{{O}_{7}}\]

D)

\[{{P}_{2}}{{O}_{3}}\]

View Answer
92) Which one gives \[{{I}_{2}}\] on reaction with\[KI\]?

A)

\[~A{{g}_{2}}S{{O}_{4}}\]

B)

\[CuS{{O}_{4}}\]

C)

\[~PbS{{O}_{4}}\]

D)

\[~CdS{{O}_{4}}\]

View Answer
93) Colour of the solution When \[\text{KI}\]reacts with \[\text{B}{{\text{r}}_{2}}\] is:

A)

blue

B)

black

C)

red

D)

no change

View Answer
94) Finely divided iron combines with CO to give:

A)

\[Fe{{(CO)}_{5}}\]

B)

\[F{{e}_{2}}{{(CO)}_{9}}\]

C)

\[F{{e}_{3}}{{(CO)}_{12}}\]

D)

\[Fe{{(CO)}_{6}}\]

View Answer
95) Which of the following is pyramidal?

A)

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

B)

\[CO_{3}^{2-}\]

C)

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

D)

\[NO_{3}^{-}\]

View Answer
96) Which of the following conducts electricity?

A)

Crystal\[\text{NaCl}\]

B)

Diamond

C)

Molten\[\text{KBr}\]

D)

Sulphur

View Answer
97) Ratio of kinetic energy of hydrogen and helium gas at \[\text{300}\,\text{K}\]is:

A)

2 : 1

B)

4 : 5

C)

1 : 1

D)

1 : 2

View Answer
98) Which of the following has highest energy?

A)

\[n=2,\,l=1\]

B)

\[n=3,\,l=2\]

C)

\[n=3,\,l=1\]

D)

\[n=2,\,l=0\]

View Answer
99) Oxidation   state   of   phosphorus   in pyrophosphoric acid is:

A)

+ 5

B)

+ 3

C)

+ 4

D)

+ 1

View Answer
100) If the 75% of a first order reaction is complete in 8 min, then time taken to decompose 50% of its initial amount is:

A)

2 min

B)

4 min

C)

12 min

D)

1 min

View Answer
101) Sequence of cytochromes is:

A)

\[cyt.\text{ }a,\text{ }b,\text{ }c,\text{ }{{a}_{3}}\]

B)

\[~cyt.\text{ }b,\text{ }c,\text{ }a,\text{ }{{a}_{3}}\]

C)

\[~cyt.\text{ }b,\text{ }a,\text{ }{{a}_{3}},c\]

D)

\[~cyt.\text{ }b,c,\,{{a}_{3}},a\]

View Answer
102) Cytochrome is a:

A)

Mg pyrole ring

B)

Fe porphyrin ring

C)

nucleotide

D)

alloy of nichrome

View Answer
103) Placentation in Brasicaceae is:

A)

parietal

B)

marginal

C)

axile

D)

basal

View Answer
104) Rauwolffia serpentina is used in:

A)

curing high blood pressure

B)

kideny failure

C)

eye defect

D)

diabetes

View Answer
105) Which one of the following is agranulocyte?

A)

Neutrophil

B)

Eosinophil

C)

Basophil

D)

Monocyte

View Answer
106) Who described \[{{\text{C}}_{\text{4}}}\]pathway for firsts time?

A)

Hatch and Slack

B)

Robert Hill

C)

Hans Krebs

D)

Melvin Calvin

View Answer
107) Who is the father of Indian Bryology?

A)

O.P. lyengar

B)

S. Kashyap

C)

E. J. Butlar

D)

R. Mishra

View Answer
108) Which one is absent in frog?

A)

Phrenic nerve

B)

Renal portal vein

C)

Both [a] and [b]

D)

None of these

View Answer
109) Poison gland in snake is located in:

A)

parietal

B)

maxilla

C)

mandible

D)

neck

View Answer
110) Eugene P. Odum is a:

A)

bryologist

B)

ecologist

C)

gerontologist

D)

neurologist

View Answer
111) Which of the following is not endocrine gland?

A)

Thyroid

B)

Adrenal

C)

Pituitary

D)

Sebaceous

View Answer
112) Animal protected in Kaziranga National park is:

A)

tiger

B)

lion

C)

elephant

D)

Rhinoceros

View Answer
113) In 125 amino acid sequence if 25 amino acid is mutated to UAA, then:

A)

a polypeptide of 124 amino acid is formed

B)

a polypeptide of 25 amino acid is formed

C)

a polypeptide of 24 amino acid is formed

D)

any of the above can be possible

View Answer
114) In gastrulation, which is (are) formed?

A)

endoderm

B)

mesoderm

C)

etoderm, endoderm

D)

ectoderm, mesoderm, endoderm

View Answer
115) In embryo sac, \[n,\text{ }2n,\text{ }3n\]conditions are found respectively in:

A)

egg, antipodal, endosperm

B)

nucleus, endosperm, egg .

C)

antipodal, zygote, endosperm

D)

endosperm; nucleus, egg

View Answer
116) Which of the following set is green-house gases?

A)

\[CFC,C{{H}_{4}},C{{O}_{2}},{{N}_{2}}O\]

B)

\[C{{O}_{2}},C{{H}_{4}},{{N}_{2}},{{O}_{2}}\]

C)

\[C{{O}_{2}},C{{H}_{4}},{{N}_{2}},{{O}_{3}}\]

D)

\[C{{O}_{2}},CFC,{{N}_{2}},{{O}_{2}}\]

View Answer
117) Krebs cycle takes place in:

A)

mitochondrial matrix

B)

cytoplasm

C)

lysosome

D)

nucleus

View Answer
118) Which of the following is monogenetic parasite?

A)

Entamoeba histolytica

B)

Taenia solium

C)

Wuchereria bancroftii

D)

Plasmodium vivax

View Answer
119) Stratified squammous epithelium is found in :

A)

pharynx

B)

trachea

C)

-ileum

D)

Bowmans capsule

View Answer
120) Which one is polymer?

A)

Sucrose

B)

Glycogen

C)

Fructose

D)

Lactose

View Answer
121) In cell division, spindle fibres are made up of protein:

A)

myoglobin

B)

tubulin

C)

albumin

D)

myosin

View Answer
122) In photosynthesis, for fixation of one mole of glucose number of ATP and \[\text{NADP}{{\text{H}}_{\text{2}}}\]required is:

A)

12 and 18

B)

18 and 12

C)

6 and 12

D)

18 and 18

View Answer
123) Bulk of histone proteins synthesized in:

A)

\[{{G}_{1}}-\]phase

B)

\[{{G}_{2}}-\] phase

C)

S-phase

D)

\[{{G}_{0}}-\]phase

View Answer
124) Species which is in danger of extinction is:

A)

endangered

B)

vulnerable

C)

rare

D)

critically endangered

View Answer
125) Mollusca is:

A)

triploblastic, acoeiomate

B)

triploblastic, coelomate

C)

dibloblastic, acoeiomate

D)

diploblastic, coelomate

View Answer
126) Cyathium and hypanthodium inflorescence are related in having:

A)

nectar glands

B)

unisexual flower

C)

both [a] and [b]

D)

none of these

View Answer
127) Exarch and polyarch condition found in:

A)

monocot stem

B)

dicot stem

C)

monocot root

D)

dicot root

View Answer
128) Which of the following enzymes helps in crossing plasma membrane?

A)

protease

B)

pepsin

C)

dehydrpgenase

D)

permease

View Answer
129) \[\text{N}{{\text{H}}_{\text{3}}}\]in Amoeba is excreted by:

A)

food vacuole

B)

contractile vacuole

C)

plasma membrane

D)

all of the above

View Answer
130) Antiparallel strands in DNA is due to:

A)

disulphite linkage

B)

hydrogen bond

C)

phosphodiester bond

D)

glycosidic bond

View Answer
131) Choose the incorrect match:

A)

nucleus-RNA

B)

lysosome-protein synthesis

C)

mitochondria-respiration

D)

cytoskeleton-microtubules

View Answer
132) More advancement in genetic engineering is due to:

A)

restriction endonuclease

B)

reverse transcriptase

C)

protease

D)

zymase

View Answer
133) Rough endoplasmic reticulum is associated with:

A)

fat synthesis

B)

steroid synthesis

C)

protein synthesis

D)

all of these

View Answer
134) In lung, maximum gaseous exchange is due to:

A)

simple diffusion

B)

active transport

C)

passive transport

D)

fascilitated diffusion

View Answer
135) Resolving power of electron microscope is:

A)

\[\text{1}\overset{\text{o}}{\mathop{\text{A}}}\,\]

B)

\[\text{10}\overset{\text{o}}{\mathop{\text{A}}}\,\]

C)

\[\text{100}\overset{\text{o}}{\mathop{\text{A}}}\,\]

D)

\[\text{1000}\overset{\text{o}}{\mathop{\text{A}}}\,\]

View Answer
136) The female children of haemophilic father and carrier mother:

A)

all haemophilic

B)

half haemophilic, half carrier

C)

all normal

D)

all carrier

View Answer
137) Number of Barr bodies in XXXXY is:

A)

1

B)

2

C)

3

D)

4

View Answer
138) Natural system of classification is given by:

A)

Benthem and Hooker

B)

Carolus Linnaeus

C)

Charles Darwin

D)

Engler and Pranti

View Answer
139) Leaves of grasses roll and unroll due to :

A)

hormonal change

B)

change in temperature

C)

change in turgor pressure

D)

presence of bulliform apparatus

View Answer
140) Stomata open and close due to:

A)

turgor pressure change

B)

hormonal change

C)

temperature change

D)

all of the above

View Answer
141) Haploid structure of Funaria is:

A)

protonema

B)

calyptra

C)

apophysis

D)

operculum

View Answer
142) Fruiting body of Penicillium is:

A)

cleistothecium

B)

pycniophysis

C)

sterigmata

D)

none of these

View Answer
143) Sperm of Cycas is:

A)

multiflagellated and very large

B)

small and biflagellated

C)

multiflagellated and small

D)

large and biflagellated

View Answer
144) Ecosystem has:

A)

plant and animal

B)

air and \[{{\text{H}}_{\text{2}}}\text{O}\]

C)

soil and light

D)

biotic and abiotic component

View Answer
145) For nitrogen fixation, pigment useful is :

A)

nitrogenase

B)

haemoglobin

C)

myoglobin

D)

leghaemoglobin

View Answer
146) Sal and teak are found in

A)

tropical rain forest

B)

tropical deciduous forest

C)

temperate board leaf forest

D)

temperate needle leaf forest

View Answer
147) In plasmolysed cell, the space between nucleus and plasma membrane is occupied by:

A)

hypotonic solution

B)

hypertonic solution

C)

isotonic solution

D)

air

View Answer
148) During oogenis, the small structure separated from egg is:

A)

polar bodies

B)

secondary endosperm

C)

herring bodies

D)

Hela cells

View Answer
149) Structural and functional unit of kidney is:

A)

neuron

B)

nephron

C)

lungs

D)

Schwanns cells

View Answer
150) Which hexaploid wheat is used to make bread?

A)

Triticum turgidum

B)

Triticum durum

C)

Triticum monococcum

D)

Triticum aestivum

View Answer

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done JCECE Medical Solved Paper-2006 Total Questions - 150

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JCECE Medical Solved Paper-2006 Total Questions - 150