Solved papers for BCECE Medical BCECE Medical Solved Papers-2004

BCECE Medical Solved Papers-2004 Total Questions - 150

1) An object accelerates from rest to a velocity 27.5 m/s in 10 s, then the distance covered after next 10 s is :

A)

550 m

B)

137.5 m

C)

412.5 m

D)

175 m

View Answer
2) The position vector of a particle is \[\vec{r}=(a\cos \omega \,t)\,\hat{i}+(a\sin \omega \,t)\hat{j}\] The velocity vector of the particle is:

A)

parallel to position vector

B)

perpendicular to position vector

C)

directed towards the origin

D)

directed away from the origin

View Answer
3) If a person sitting in a train moving with a constant velocity along a straight line, throws a ball vertically upwards, then :

A)

ball will fall onwards the train

B)

ball will return to throwers hand

C)

ball will not return to throwers hand

D)

none of the above

View Answer
4) A stone thrown at an angle \[\theta \] to the horizontal reaches a maximum height H. Then the time of flight of stone will be :

A)

\[\sqrt{\frac{2H}{g}}\]

B)

\[2\sqrt{\frac{2H}{g}}\]

C)

\[2\sqrt{\frac{2H\sin \theta }{g}}\]

D)

\[\sqrt{\frac{2H\sin \theta }{g}}\]

View Answer
5) At the height 80 m, an aeroplane is moved with 150 m/s. A bomb is dropped from it, so as to hit a target. At what distance from the target should the bomb be dropped? \[(g=10\,m/{{s}^{2}})\]

A)

605.3 m

B)

600 m

C)

80 m

D)

230 m

View Answer
6) A spring has length \[l\] and spring constant k. If spring is divided in two equal parts then spring constant of each part is :

A)

k

B)

\[\frac{k}{2}\]

C)

2 k

D)

4 k

View Answer
7) A body is moving along a rough horizontal surface with an initial velocity 6 m/s. If the body comes to rest after travelling a distance 9 m, then the coefficient of sliding friction will be:

A)

0.4

B)

0.2

C)

0.6

D)

0.8

View Answer
8) If two soap bubbles of different radii are connected by a tube :

A)

air flows from the bigger bubble to the smaller bubble till the sizes become equal

B)

air flows from bigger bubble to the smaller bubble till the sizes are interchanged

C)

air flows from the smaller bubble to the bigger

D)

there is no flow of air

View Answer
9) If the momentum of body is increased by 100%, then the percentage increase in the kinetic energy will be :

A)

330%

B)

225%

C)

200%

D)

300%

View Answer
10) Water falls from a height 500 m. The rise in temperature of water at bottom if whole of the energy remains in water, will be : (specific heat of water is c = 4.2 kJ/kg)

A)

\[{{0.23}^{o}}C\]

B)

\[{{1.16}^{o}}C\]

C)

\[{{0.96}^{o}}C\]

D)

\[{{1.02}^{o}}C\]

View Answer
11) A bullet of mass 0.1 kg is fired with a speed of 100 m/s. The mass of gun being 50 kg. Then, the velocity of recoil become :

A)

0.05 m/s

B)

0.5 m/s

C)

0.1 m/s

D)

0.2 m/s

View Answer
12) A body of mass M moves with velocity v and collides elastically with another body of mass m (M >> m) at rest, then the velocity of body of mass m is :

A)

v

B)

2v

C)

v/2

D)

zero

View Answer
13) If torque is zero then :

A)

angular momentum is conserved

B)

linear momentum is conserved

C)

energy is conserved

D)

angular momentum is not conserved

View Answer
14) A solid sphere, a hollow sphere and a disc having same mass and radius roll down the same inclined plane from rest. Which one will reach the ground in least time?

A)

Solid sphere

B)

Hollow sphere

C)

Disc

D)

All will reach in same time

View Answer
15) In simple harmonic motion maximum velocity is at:

A)

extreme position

B)

half of extreme position

C)

equilibrium position

D)

between extreme and equilibrium position

View Answer
16) A ball is thrown from a point with a speed \[{{v}_{0}}\]at an angle of projection \[\theta \]. From the same point and at the same instant, a person starts running with a constant speed \[\frac{{{v}_{0}}}{2}\] to catch the ball. Will the person be able to catch the ball? If yes, what should be the angle of projection?

A)

Yes,\[{{60}^{o}}\]

B)

Yes, \[{{30}^{o}}\]

C)

No

D)

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

View Answer
17) The ratio of root mean square velocities of \[{{O}_{3}}\] and \[{{O}_{2}}\] is :

A)

1 : 1

B)

2 : 3

C)

3 : 2

D)

\[\sqrt{2}:\sqrt{3}\]

View Answer
18) If mass of He is 4 times that of hydrogen, then mean velocity of He is :

A)

2 times of H-mean value

B)

\[\frac{1}{2}\]times of H-mean value

C)

4 times of H-mean value

D)

same as H-mean value

View Answer
19) A wire elongates by \[l\] mm when a load w is hanged from it. If the wire goes over a pulley and two weights w each are hung at the two ends, the elongation of the wire will be (in mm):

A)

\[l\]

B)

\[2\,l\]

C)

zero

D)

\[l/2\]

View Answer
20) First law of thermodynamics is a consequence of the conservation of:

A)

energy

B)

charge

C)

heat

D)

all of these

View Answer
21) An ideal heat engine exhausting heat at \[{{77}^{o}}C\]is to have 30% efficiency. It must take hear at:

A)

\[{{127}^{o}}C\]

B)

\[{{227}^{o}}C\]

C)

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

D)

\[{{673}^{o}}C\]

View Answer
22) A liquid cools from \[{{50}^{o}}C\] to \[{{45}^{o}}C\] in 5 min and from \[{{45}^{o}}C\] to \[{{41.5}^{o}}C\] in the next 5 min. The temperature of the surrounding is :

A)

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

B)

\[{{40.3}^{o}}C\]

C)

\[{{23.3}^{o}}C\]

D)

\[{{33.3}^{o}}C\]

View Answer
23) At \[{{127}^{o}}C\], radiated energy is \[2.7\times {{10}^{-3}}\] J/s. At what temperature radiated energy is \[4.32\times {{10}^{6}}\]J/s?

A)

400 K

B)

4000 K

C)

80000 K

D)

40000 K

View Answer
24) If wave equation is \[y=0.08\sin \frac{2\pi }{\lambda }\,(200\,t-x)\], then the velocity of the wave will be :

A)

\[400\sqrt{2}\,m/s\]

B)

\[200\sqrt{2}\,m/s\]

C)

400 m/s

D)

200 m/s

View Answer
25) A plano-convex lens of refractive index 1.5 and radius of curvature 30 cm is silvered at the curved surface. Now, this lens has been used to form the image of an object. At what distance from this lens, an object be placed in order to have a real image of the size of the object?

A)

20 cm

B)

30 cm

C)

60 cm

D)

80 cm

View Answer
26) A man having height 6 m, observes image of 2 m height erect, then mirror used is:

A)

concave

B)

convex

C)

plane

D)

none of these

View Answer
27) Which of the following statements is true?

A)

If wavelength of light increases then frequency also increases

B)

If energy increases then frequency also increases

C)

Frequency of red light is greater than frequency of blue light

D)

If energy increases then frequency decreases

View Answer
28) If focal lengths of the objective and the eye piece of a telescope be \[{{f}_{o}}\] and \[{{f}_{e}}\] respectively, then its magnification is:

A)

\[\frac{1}{2}({{f}_{o}}+{{f}_{e}})\]

B)

\[{{f}_{o}}/{{f}_{e}}\]

C)

\[({{f}_{o}}+{{f}_{e}})\]

D)

\[{{f}_{o}}\times {{f}_{e}}\]

View Answer
29) Near and far points of human eye are :

A)

25 cm and infinite

B)

50 cm and 100 cm

C)

25 cm and 50 cm

D)

0 cm and 25 cm

View Answer
30) Work done in carrying a charge around an equipoteritial surface will :

A)

increase

B)

decrease

C)

zero

D)

infinity

View Answer
31) An air parallel plate capacitor has capacity C. The capacity and distance between plates are doubled when immersed in a liquid then dielectric constant of the liquid is :

A)

1

B)

2

C)

3

D)

4

View Answer
32) If the potential of a capacitor having capacity 6 \[\mu F\]is increased from 10 V to 20V, then increase in its energy is :

A)

\[12\times {{10}^{-6}}J\]

B)

\[9\times {{10}^{-4}}J\]

C)

\[4.5\times {{10}^{-6}}J\]

D)

\[2.25\times {{10}^{-6}}J\]

View Answer
33) The resistance of a bulb filament is 100 0 at temperature of \[{{100}^{o}}C\]. If its temperature coefficient of resistance be \[0.005{{/}^{o}}C\], its resistance will become 200\[\Omega \] at a temperature of:

A)

\[{{300}^{o}}C\]

B)

\[{{400}^{o}}C\]

C)

\[{{500}^{o}}C\]

D)

\[{{200}^{o}}C\]

View Answer
34) A galvanometer of resistance 22.8 \[\Omega \] measures 1 A. How much shunt should be used, so that it can be used to measure 20 A?

A)

1\[\Omega \]

B)

2\[\Omega \]

C)

1.2\[\Omega \]

D)

2.2\[\Omega \]

View Answer
35) If an ammeter is joined in parallel through a circuit, it can be damaged due to excess :

A)

resistance

B)

current

C)

voltage

D)

none of these

View Answer
36) The heat produced by a 100 W heater in 2 min will be equal to :

A)

\[12\times {{10}^{3}}J\]

B)

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

C)

\[6\times {{10}^{3}}J\]

D)

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

View Answer
37) Two wires have resistances R and 2R. When both are joining in series and in parallel, then ratio of heats generated in these situations on applying the same voltage, is :

A)

2 : 1

B)

1 : 2

C)

2 : 9

D)

9 : 2

View Answer
38) The current in a coil decreases from 1 A to 0.2 A in 10 s. The coefficient of self-inductance, if induced emf is 0.4 V, is :

A)

5 H

B)

3 H

C)

4 H

D)

2 H

View Answer
39) Cyclotron is a device which is used to :

A)

measure the charge

B)

measure the voltage

C)

accelerate protons

D)

accelerate electrons

View Answer
40) In L - R circuit, resistance is 8 \[\Omega \] and inductive reactance is 6 \[\Omega \], then impedance is :

A)

2\[\Omega \]

B)

14\[\Omega \]

C)

4\[\Omega \]

D)

10\[\Omega \]

View Answer
41) According to Maxwells hypothesis, changing electric field gives rise to :

A)

magnetic field

B)

pressure gradient

C)

charge

D)

voltage

View Answer
42) Dimensions of Plancks constant is :

A)

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

B)

\[[ML{{T}^{-2}}]\]

C)

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

D)

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

View Answer
43) In any fission process the ratio \[\frac{mass\text{ }of\text{ }fission\text{ }products}{mass\text{ }of\text{ }parent\text{ }nucleus}\] is :

A)

less than 1

B)

greater than 1

C)

equal to 1

D)

depends on the mass of parent nucleus

View Answer
44) If in a nuclear fusion process, the masses of the fusing nuclei be \[{{m}_{1}}\] and \[{{m}_{2}}\]and the mass of the resultant nucleus be \[{{m}_{3}}\] , then:

A)

\[{{m}_{3}}={{m}_{1}}+{{m}_{2}}\]

B)

\[{{m}_{3}}=({{m}_{1}}-{{m}_{2}})\]

C)

\[{{m}_{3}}<({{m}_{1}}+{{m}_{2}})\]

D)

\[{{m}_{3}}>({{m}_{1}}+{{m}_{2}})\]

View Answer
45) In BJT, maximum current flows in which of the following?

A)

Emitter region

B)

Base region

C)

Collector region

D)

Equal in all the regions

View Answer
46) In frequency modulated wave :

A)

frequency varies with time

B)

amplitude varies with time

C)

both frequency and amplitude vary with time

D)

both frequency and amplitude are constant

View Answer
47) The total energy of an electron in the first excited state of hydrogen is about -3.4 eV. Its kinetic energy in this state is :

A)

-3.4eV

B)

- 6.8 eV

C)

6.8 eV

D)

3.4 eV

View Answer
48) If \[{{\lambda }_{v}},{{\lambda }_{x}}\] and \[{{\lambda }_{m}}\] represent the wavelengths of visible light, X-rays and microwaves respectively, then :

A)

\[{{\lambda }_{m}}>{{\lambda }_{x}}>{{\lambda }_{v}}\]

B)

\[{{\lambda }_{v}}>{{\lambda }_{m}}>{{\lambda }_{x}}\]

C)

\[{{\lambda }_{m}}>{{\lambda }_{v}}>{{\lambda }_{x}}\]

D)

\[{{\lambda }_{v}}>{{\lambda }_{x}}>{{\lambda }_{m}}\]

View Answer
49) The manifestation of band structure in solids is due to :

A)

Heisenbergs uncertainty principle

B)

Faults exclusion principle

C)

Bohrs correspondence principle

D)

Boltzmanns law

View Answer
50) An electric power station transmits 100 MW power through long and thin cable. If the transmission is at (i) 20000 V, (ii) 200 V, in which case would be less power loss?

A)

In (i) only

B)

In (ii) only

C)

In each case, power loss is zero

D)

Data is insufficient

View Answer
51) Arrange the following as increase in oxidation number:

(i) \[M{{n}^{2+}}\]

(ii) \[Mn{{O}_{2}}\]

(iii) \[KMn{{O}_{4}}\]

(iv) \[{{K}_{2}}Mn{{O}_{4}}\]

A)

(i) > (ii) > (iii) > (iv)

B)

(i) < (ii) < (iv) < (iii)

C)

(ii) < (iii) < (i) < (iv)

D)

(iii) > (i) > (iv) > (ii)

View Answer
52) S-S bond is not present in :

A)

\[{{H}_{2}}{{S}_{2}}{{O}_{4}}\]

B)

\[{{H}_{2}}{{S}_{2}}{{O}_{6}}\]

C)

\[{{H}_{2}}{{S}_{2}}{{O}_{8}}\]

D)

none of these

View Answer
53) A radioactive substance after 48 days remains 25% of initial then find disintegration constant:

A)

\[2.89\times {{10}^{-2}}{{T}^{-1}}\]

B)

\[3.89\times {{10}^{-3}}{{T}^{-1}}\]

C)

\[4.89\times {{10}^{-2}}{{T}^{-1}}\]

D)

none of these

View Answer
54) Correct order of reactivity :

A)

\[{{I}_{2}}>B{{r}_{2}}>C{{l}_{2}}>{{F}_{2}}\]

B)

\[B{{r}_{2}}>{{I}_{2}}>C{{l}_{2}}>{{F}_{2}}\]

C)

\[C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}>{{F}_{2}}\]

D)

\[{{F}_{2}}>C{{l}_{2}}>B{{r}_{2}}>{{I}_{2}}\]

View Answer
55) Three elements A, B and C having reduction potential -1.5,-0.5 and 1.5 V respectively then arrange them in correct order according to reducing power:

A)

A > B > C

B)

B > A > C

C)

C > B > A

D)

B > C > A

View Answer
56) The standard reduction potential \[{{E}^{o}}\] for the half reactions are as : \[Zn\xrightarrow{{}}Z{{n}^{2+}}+2{{e}^{-}},\,\,{{E}^{o}}=0.76\,\,V\] \[Cu\xrightarrow{{}}C{{u}^{2+}}+2{{e}^{-}},\,\,{{E}^{o}}=0.34\,\,V\] The emf for the cell reaction: \[Zn+C{{u}^{2+}}\xrightarrow{{}}Z{{n}^{2+}}+Cu\]

A)

0.42 V

B)

- 0.42 V

C)

- 1.1 V

D)

1.1 V

View Answer
57) Variable oxidation state and degenerated orbital shows :

A)

s-block element

B)

p-block element

C)

d-block element

D)

all of these

View Answer
58) Which of the following is more acidic in nature?

A)

\[HClO\]

B)

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

C)

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

D)

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

View Answer
59) Unit of the constant of zero order reaction is :

A)

\[tim{{e}^{-1}}\]

B)

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

C)

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

D)

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

View Answer
60) Mole fraction of a solute in benzene is 0.2 then find molality of solute :

A)

3.2

B)

2

C)

4

D)

3.6

View Answer
61) What amount of water is added in 40 mL of NaOH (0.1 N) which is neutralized by 50 mL of HCl (0.2N)?

A)

80ml.

B)

60 mL

C)

40 mL

D)

90 mL

View Answer
62) Slope between PV and P at constant temperature is :

A)

zero

B)

1

C)

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

D)

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

View Answer
63) When pressure is applied to the equilibrium system ice \[\] water. Which of the following phenomenon will happen?

A)

More ice will be formed

B)

Water will evaporate

C)

More water will be formed

D)

Equilibrium will not be formed

View Answer
64) For \[A\xrightarrow{{}}B,\,\,\Delta \,H=4\,k\,cal\,\,mo{{l}^{-1}}\] \[\Delta S=10\,cal\,mo{{l}^{-1}}{{K}^{-1}}\] reaction is spontaneous when temperature can be:

A)

400 K

B)

300 K

C)

500K

D)

none of these

View Answer
65) Degree of dissociation of \[N{{H}_{4}}OH\] in water is \[1.8\times {{10}^{-5}}\], then hydrolysis constant of \[N{{H}_{4}}Cl\]is:

A)

\[1.8\times {{10}^{-5}}\]

B)

\[1.8\times {{10}^{-10}}\]

C)

\[5.55\times {{10}^{-5}}\]

D)

\[5.55\times {{10}^{-10}}\]

View Answer
66) A current of strength 2.5A was passed through\[CuS{{O}_{4}}\] solution for 6 min 26s. The amount of copper deposited is : (At. wt. of Cu = 63.5,1 F = 96500 C)

A)

0.3175 g

B)

3.175 g

C)

0.635 g

D)

6.35 g

View Answer
67) The charge on an electron was discovered by :

A)

J.J. Thomson

B)

Neil Bohr

C)

James Chadwick

D)

Mullikan

View Answer
68) The normality of mixture obtained by mixing 100 mL of 0.2 M \[{{H}_{2}}S{{O}_{4}}\] + 100 mL of 0.2 M NaOH is:

A)

0.2

B)

0.01

C)

0.1

D)

0.3

View Answer
69) The Bohrs orbit radius for the hydrogen atom \[(n=1)\] is approximately \[0.53\text{ }\overset{o}{\mathop{A}}\,\]. The radius for the first excited state \[(n=2)\] orbit is :

A)

\[0.27\overset{o}{\mathop{A}}\,\]

B)

\[1.27\overset{o}{\mathop{A}}\,\]

C)

\[2.12\overset{o}{\mathop{A}}\,\]

D)

\[3.12\overset{o}{\mathop{A}}\,\]

View Answer
70) A gas has a vapour density 11.2. The volume occupied by 1g of the gas at NTP is :

A)

1 L

B)

11.2 L

C)

22.4L

D)

4L

View Answer
71) If \[n=3,\,\,l=0\] and \[m=0\], then atomic, number is:

A)

12 or 13

B)

13 or 14

C)

10 or 11

D)

11 or 12

View Answer
72) Which is not a colligative property?

A)

Osmotic pressure

B)

Optical activity

C)

Elevation in boiling point

D)

Depression in freezing point

View Answer
73) The rate constant of a first order reaction is \[3\times {{10}^{-6}}\] per second and initial concentration is 0.10 M. Then the initial rate of reaction is:

A)

\[3\times {{10}^{-6}}m{{s}^{-1}}\]

B)

\[3\times {{10}^{-8}}m{{s}^{-1}}\]

C)

\[3\times {{10}^{-7}}m{{s}^{-1}}\]

D)

\[3\times {{10}^{-9}}m{{s}^{-1}}\]

View Answer
74) \[C{{H}_{2}}=C{{H}_{2}}(g)+{{H}_{2}}(g)\to C{{H}_{3}}-C{{H}_{3}}(g)\] The heat of reaction is [bond energy of C-C = 80 kcal, C = C = 145 kcal, C-H = 98 kcal, H-H = 103 kcal]

A)

-14 kcal

B)

-28 kcal

C)

-42 kcal

D)

-56 kcal

View Answer
75) Tyndall effect is shown by :

A)

precipitate

B)

sol

C)

plasma

D)

solution

View Answer
76) If \[p{{K}_{a}}\] values of four acids are given below at \[{{25}^{o}}C\] the strongest acid is :

A)

2.0

B)

2.5

C)

3.0

D)

4.0

View Answer
77) The solubility of gas in liquid depends upon :

A)

the nature of gas

B)

the temperature

C)

the nature of solvent

D)

all of the above ,

View Answer
78) Write the IUPAC name of: \[C{{H}_{3}}-C{{H}_{2}}-\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{2}}-C{{H}_{3}}\]

A)

3- methylpentane-3-ol

B)

3-hydroxyhexane

C)

3-hydroxy-3-methyl pentane

D)

all of the above

View Answer
79) Natural rubber is polymer of:

A)

\[{{H}_{2}}C=\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}\]

B)

\[{{H}_{2}}C=\overset{\begin{smallmatrix} Cl \\ | \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}\]

C)

\[\overset{\begin{smallmatrix} {{C}_{6}}{{H}_{5}} \\ | \end{smallmatrix}}{\mathop{C}}\,H=C{{H}_{2}}\]

D)

\[-{{(C{{H}_{2}}-C{{H}_{2}})}_{n}}-\]

View Answer
80) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\] reacts with hot and excess HI, then formed product is :

A)

\[C{{H}_{3}}C{{H}_{2}}-I\] and \[C{{H}_{3}}C{{H}_{2}}OH\]

B)

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

C)

\[C{{H}_{3}}-C{{H}_{2}}-I\]

D)

none of the above

View Answer
81) X compounds reacts with Na to give\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}C{{H}_{3}}\] , then compound X is :

A)

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

B)

\[C{{H}_{3}}C{{H}_{2}}-Cl\]

C)

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

D)

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

View Answer
82) In the following compound, least number of mono chlorination is possible :

A)

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

B)

\[C{{H}_{3}}-\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,H-C{{H}_{2}}-C{{H}_{3}}\]

C)

\[C{{H}_{3}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-H\]

D)

\[C{{H}_{3}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,}}\,-C{{H}_{3}}\]

View Answer
83) \[C{{H}_{3}}C{{H}_{2}}OH\] convert into \[C{{H}_{3}}CHO\] in the presence of:

A)

\[N{{a}_{2}}C{{r}_{2}}{{O}_{7}}\] and \[NaOH\]

B)

\[N{{a}_{2}}C{{r}_{2}}{{O}_{7}}\] and dil. \[{{H}_{2}}S{{O}_{4}}\]

C)

\[NaOH\]

D)

Fe in presence of \[NaOH\]

View Answer
84) Which of the following reactant give Tollens reagent and Fehlings solution test?

A)

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

B)

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

C)

\[C{{H}_{3}}-\underset{\begin{smallmatrix} || \\ O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\]

D)

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

View Answer
85) The alcohol manufactured from water gas is :

A)

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

B)

\[{{C}_{2}}{{H}_{5}}OH\]

C)

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

D)

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

View Answer
86) The most stable alkene is :

A)

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

B)

\[RCH=CHR\]

C)

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

D)

\[RCH=C{{R}_{2}}\]

View Answer
87) The most favourable condition for the manufacture of \[N{{H}_{3}}\] is :

A)

high temperature and high pressure

B)

low temperature and low pressure

C)

high temperature-and low pressure

D)

low temperature and high pressure

View Answer
88) The conversion of benzaldehyde into benzyl alcohol takes place by :

A)

Fittig reaction

B)

Wurtz Fittig reaction

C)

Wurtz reaction

D)

Cannizaros reaction

View Answer
89) Paracetamol is an:

A)

antibiotic

B)

antipyretic

C)

antimalarial

D)

analgesic

View Answer
90) Benzaldehyde gives a positive test with :

A)

Tollens reagent

B)

Fehling solution

C)

Benedicts solution

D)

all of the above

View Answer
91) Which of the following is not soluble in\[NaOH\]?

A)

\[Fe{{(OH)}_{3}}\]

B)

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

C)

\[Al{{(OH)}_{3}}\]

D)

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

View Answer
92) Which of the following has least oxidation state of Fe?

A)

\[{{K}_{3}}[Fe{{(OH)}_{6}}]\]

B)

\[{{K}_{2}}[Fe{{O}_{4}}]\]

C)

\[FeS{{O}_{4}}{{(N{{H}_{4}})}_{2}}S{{O}_{4}}\,.\,6{{H}_{2}}O\]

D)

\[{{[Fe{{(CN)}_{6}}]}^{3-}}\]

View Answer
93) Green vitriol is formed by :

A)

\[Fe{{S}_{2}}+{{H}_{2}}O+{{O}_{2}}\]

B)

\[Fe{{S}_{2}}+{{H}_{2}}O+C{{O}_{2}}\]

C)

\[Fe{{S}_{2}}+CO+C{{O}_{2}}\]

D)

\[Fe{{S}_{2}}+CO\]

View Answer
94) \[NaOH+{{P}_{4}}+{{H}_{2}}O\xrightarrow{{}}?\]

A)

\[P{{H}_{3}}+Na{{H}_{2}}P{{O}_{2}}\]

B)

\[P{{H}_{3}}+N{{a}_{2}}P{{O}_{4}}\]

C)

\[P{{H}_{3}}+N{{a}_{2}}HP{{O}_{2}}\]

D)

\[{{H}_{3}}P{{O}_{4}}+NaO\]

View Answer
95) Slag is represented by:

A)

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

B)

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

C)

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

D)

\[CaO\]

View Answer
96) Which of the following is not a nucleophile?

A)

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

B)

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

C)

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

D)

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

View Answer
97) Fuming sulphuric acid is :

A)

\[{{H}_{2}}S{{O}_{4}}+S{{O}_{3}}\]

B)

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

C)

\[{{H}_{2}}S{{O}_{4}}\]

D)

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

View Answer
98) On strong heating \[MgC{{l}_{2}}\,.\,\,6{{H}_{2}}O\], the product obtained is :

A)

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

B)

\[MgO\]

C)

\[MgC{{l}_{2}}\,.\,2{{H}_{2}}O\]

D)

\[MgC{{l}_{2}}\,.\,4{{H}_{2}}O\]

View Answer
99) The highest first ionisation potential is of :

A)

carbon

B)

boron

C)

oxygen

D)

nitrogen

View Answer
100) In sulphur detection of an organic compound, sodium nitroprusside solution is added to sodium extract. Formation of violet colour is due to:

A)

\[N{{a}_{3}}Fe{{(CN)}_{6}}\]

B)

\[N{{a}_{3}}[Fe{{(CN)}_{5}}NOS]\]

C)

\[Fe{{(CNS)}_{3}}\]

D)

none of these

View Answer
101) Mycology is related with :

A)

algae

B)

fungi

C)

bacteria

D)

yeast

View Answer
102) Phylum of Taenia solium is :

A)

Aschelminthes

B)

Annelida

C)

Platyhelminthes

D)

Mollusca

View Answer
103) Which base is present in RNA but not in DNA?

A)

Uracil

B)

Thymine

C)

Guanine

D)

Cytosine

View Answer
104) Cell wall of a cell is removed, the remaining is called

A)

etioplast

B)

aleuroplast

C)

amyloplast

D)

protoplast

View Answer
105) Movement among cells against concentration gradient is called :

A)

osmosis

B)

active transport

C)

diffusion

D)

passive transport

View Answer
106) Synapsis occurs in ...... phase of meiosis :

A)

zygotene

B)

diplotene

C)

pachytehe

D)

leptotene

View Answer
107) Which cell organelle is absent in human sperm?

A)

ER

B)

Mitochondria

C)

Nucleus

D)

Centrioles

View Answer
108) Number of carbons in ring of deoxyribose sugar is:

A)

four

B)

five

C)

six

D)

three

View Answer
109) Which of the following act as secondary messenger in metabolism?

A)

ATP

B)

C-AMP

C)

ADP

D)

NAD

View Answer
110) Which of the following, does not help in clotting of blood?

A)

Heparin

B)

Prothrombin

C)

\[C{{a}^{2+}}\]

D)

Fibrinogen

View Answer
111) Pollination by wind is called :

A)

anemophily

B)

hydrophily

C)

zoophily

D)

entomophily

View Answer
112) Laticiferous gland found in which plant part?

A)

Cortex

B)

Epidermis

C)

Endodermis

D)

Vascular bundle

View Answer
113) The joint between axon of a neuron and the dendrite of the next is called :

A)

synapse

B)

bridge

C)

junction

D)

joint

View Answer
114) Fruiting body of mushrooms is present in :

A)

fungi

B)

algae

C)

like monocotyledon seeds

D)

like dicotyledon seeds

View Answer
115) Black stem rust of wheat is caused by :

A)

fungi

B)

Protozoa

C)

algae

D)

bacteria

View Answer
116) \[{{O}_{2}}\] released in the process of photosynthesis, comes from:

A)

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

B)

water

C)

sugar

D)

pyruvic acid

View Answer
117) Excretory organ of spider is :

A)

coxal gland

B)

flame cells

C)

Malpighian tubule

D)

nephridia

View Answer
118) In human teeth, which help in cutting:

A)

canine

B)

incisor

C)

molar

D)

premolar

View Answer
119) Hyposecretion of growth hormone causes:

A)

dwarfism

B)

cretinism

C)

myxoedema

D)

acromegaly

View Answer
120) Hormone prolactin is secreted by :

A)

posterior pituitary

B)

thyroid

C)

anterior pituitary

D)

hypothalamus

View Answer
121) Human urine as compared to human blood is:

A)

hypotonic

B)

hypertonic

C)

isotonic

D)

all of these

View Answer
122) \[HCl\] is secreted by which of the following cell of stomach?

A)

Chief cells

B)

Parietal cells (oxyntic cells)

C)

Peptic cells

D)

Goblet cells

View Answer
123) Blood haemoglobin has high affinity for:

A)

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

B)

CO

C)

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

D)

H

View Answer
124) Steroid hormone is derived from :

A)

corticoid

B)

cholesterol

C)

AAD

D)

protein

View Answer
125) Insulin deficiency causes :

A)

diabetes insipidus

B)

diabetes mellitus

C)

goitre

D)

all of the above

View Answer
126) Activity of brain is recorded by :

A)

ECG

B)

EEG n

C)

MET

D)

CT

View Answer
127) Increase glucose level in human is called :

A)

hypoglycemia

B)

hyperglycemia

C)

hyposuria

D)

hypersuria

View Answer
128) Development of animal embryo from egg without fertilization is called :

A)

parthenogenesis

B)

parthenocarpy

C)

apospory

D)

apomixes

View Answer
129) Which part of the brain is affected first in a drunk person?

A)

Cerebrum

B)

Olfactory lobe

C)

Cerebellum

D)

Medulla oblongata

View Answer
130) Testosterone is secreted by :

A)

Leydig cells

B)

Sertoli cells

C)

Seminiferous tubule

D)

None of the above

View Answer
131) Reproduction in most of the bacteria is by a process known as :

A)

binary fission

B)

budding

C)

sexual

D)

sporulation

View Answer
132) Lion is kept under in Eltolian pyramid as :

A)

producer

B)

primary consumer

C)

secondary consumer

D)

tertiary consumer

View Answer
133) Plants developing in dry condition are :

A)

xerophytes

B)

mesophytes

C)

lithophytes

D)

hydrophytes

View Answer
134) Bacteria and fungi developing on dead decaying organisms are :

A)

parasites

B)

commensals

C)

saprophytes

D)

symbionts

View Answer
135) Klinefelters syndrome is denoted by chromosome :

A)

44 + XXY

B)

44 + XO

C)

44 + XXX

D)

44 + YY

View Answer
136) Oxygenic compounds of biological process, which activates chemical reactions are :

A)

vitamins

B)

hormones

C)

enzymes

D)

fats

View Answer
137) 72 beat per minute heart beat rate of man is controlled by :

A)

SA-node

B)

Ventricles

C)

Purkinje fibres

D)

AV-node

View Answer
138) When plant cell is kept in saline drip, cell:

A)

decrease in size

B)

bursts out

C)

increase in size

D)

unchanged

View Answer
139) Animals active at night are :

A)

diurnal

B)

nocturnal

C)

parasites

D)

nocto- diurnal

View Answer
140) Collagen fibre are secreted by :

A)

mast cells

B)

macrophage

C)

histiocytes

D)

fibroblasts

View Answer
141) Main function of glomerulus is :

A)

filtration of urine

B)

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

C)

reabsorption of \[N{{a}^{+}}\]

D)

concentration of urine

View Answer
142) Bond present between two carbohydrate molecules is :

A)

glycosidic

B)

hydrogen bond

C)

phosphodiester

D)

amide

View Answer
143) Guard cellcontrols :

A)

intensity of light entering

B)

photosynthesis

C)

closing and opening of stomata

D)

change in green colour

View Answer
144) Water molecules are connected by :

A)

van der Wall force

B)

covalent bond

C)

H-bond

D)

amide linkage

View Answer
145) The cell which destroy worn out white and red blood cells, bacteria and micro organisms passing from the liver is :

A)

P-cells

B)

T-cells

C)

Kupffer cells

D)

Oxytocin cells

View Answer
146) Pollen tube enters into ovule through micropyle is called :

A)

porogamy

B)

chalazogamy

C)

mesogamy

D)

none of these

View Answer
147) Which plant hormone causes fruit ripening?

A)

JAA

B)

Cytokinin

C)

Ethylene

D)

GA

View Answer
148) Which hormone is responsible for apical growth?

A)

IAA

B)

ABA

C)

GA

D)

All of these

View Answer
149) Which cell organelle is present in both prokaryotic and eukaryotic cell?

A)

Ribosome

B)

Mitochondria

C)

ER

D)

Nucleus

View Answer
150) Rhabditiform larva occurs in :

A)

Neries

B)

Ascaris

C)

Taenia

D)

Fasciola

View Answer

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