Solved papers for DUMET Medical DUMET Medical Solved Paper-2002

DUMET Medical Solved Paper-2002 Total Questions - 200

1) Which one of the following is the dimensionless quantity?

A)

Plancks constant

B)

Dielectric constant

C)

Solid angle

D)

Strain

View Answer
2) A car travels half of the distance with constant velocity of 30 km/h and another half with a constant velocity of 50 km/h along a straight line. The average velocity of the car in km/h is:

A)

38.7

B)

42

C)

37.5

D)

40

View Answer
3) A train of length ISO m is going towards north direction at the speed of 10 m/s. A parrot flies at a speed of 5 m/s towards south direction parallel to the railway track then the time taken by the parrot to cross the train is equal to:

A)

15 s

B)

10 s

C)

12 s

D)

8 s

View Answer
4) The position vector of a particle is determined by the expression\[\vec{r}=3{{t}^{2}}\hat{i}+4{{t}^{2}}\hat{j}+7\hat{k}\]. The distance traversed in first 10 s is :

A)

500 m

B)

300 m

C)

150 m

D)

100 m

View Answer
5) The horizontal range of a projectile is \[4\sqrt{3}\] times of its maximum height, the angle of projection will be :

A)

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

B)

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

C)

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

D)

\[{{40}^{o}}\]

View Answer
6) A body is accelerated from rest by applying a force of 30 N. The momentum of the body after 2 s will be :

A)

60 kg m/s

B)

120 kg m/s

C)

67.5kg m/s

D)

30 kg m/s

View Answer
7) A car weighing 500 kg working against a resistance of 500 N, accelerates from rest to 20 m/s within 100 s. The work done by the engine of car will be : \[(g=10\,m/{{s}^{2}})\]

A)

\[1.05\times {{10}^{5}}J\]

B)

\[1.0\times {{10}^{4}}J\]

C)

\[15\times {{10}^{4}}J\]

D)

none of these

View Answer
8) An object A of mass 2 kg is moving with a velocity of 3 m/s and collides head-on with an object B of mass 1 kg moving in opposite direction with a velocity of 4 m/s. After collision both objects coalesce, so that they move with a common velocity equal to :

A)

3 m/s

B)

2 m/s

C)

1 m/s

D)

\[\frac{2}{3}\,m/s\]

View Answer
9) The radius of earth is about 6400 km and that of mars is about 3200 km. The mass of the earth is about 10 times the mass of mars. A object weighs 200 N on earths surface, then its weight on the surface of mars will be :

A)

80 N

B)

40 N

C)

8N

D)

20 N

View Answer
10) A body executing simple harmonic motion has a maximum acceleration equal to \[24\,m/{{s}^{2}}\]and maximum velocity equal to 16 m/s. The amplitude of SHM is :

A)

\[\frac{64}{9}m\]

B)

\[\frac{1024}{9}m\]

C)

\[\frac{3}{32}m\]

D)

\[\frac{32}{9}m\]

View Answer
11) Assuming earth to be a sphere of uniform density. What is the value of acceleration due to gravity at a point 100 km below the earths surface? (Given, \[R=6380\times {{10}^{3}}m\])

A)

\[3.6\,m/{{s}^{2}}\]

B)

\[6.6\,m/{{s}^{2}}\]

C)

\[7.66\,m/{{s}^{2}}\]

D)

\[9.65\,m/{{s}^{2}}\]

View Answer
12) A bullet is tired from a gun with a speed of 1000 m/s in order to hit a target 100 m away. The height above the target the gun should be aimed will be : (The resistance of air is negligible and \[g=10\,m/{{s}^{2}}\])

A)

25 cm

B)

12 cm

C)

9 cm

D)

5 cm

View Answer
13) In a thermodynamic process, pressure of a fixed mass of a gas is changed in such a manner that the gas releases 20 J of heat and 8 J of work is done on the gas. If the initial internal energy of the gas was 30 J, the final internal energy will be:

A)

18 J

B)

9 J

C)

4.5 J

D)

36 J

View Answer
14) Two bodies are at temperatures \[{{27}^{o}}C\]and. The \[{{927}^{o}}C\] heat energy radiated by them will be in the ratio :

A)

\[1:256\]

B)

\[1:64\]

C)

\[1:4\]

D)

\[1:16\]

View Answer
15) The efficiency of a Carnot engine operating between reservoirs maintained at temperatures \[{{27}^{o}}C\] and \[={{123}^{o}}C\] is:

A)

0.75

B)

0.4

C)

0.25

D)

0.5

View Answer
16) At Rihand dam project water falls from a height of 210 m. Assuming whole of energy due to fall is converted into heat, the rise in temperature of water would be, (J = 4.2 J/cal):

A)

\[{{490}^{o}}C\]

B)

\[{{49}^{o}}C\]

C)

\[{{0.49}^{o}}C\]

D)

\[{{4.9}^{o}}C\]

View Answer
17) At what temperature the speed of sound in air will become double of its value at \[{{27}^{o}}C\]?

A)

\[{{54}^{o}}C\]

B)

\[{{627}^{o}}C\]

C)

\[{{927}^{o}}C\]

D)

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

View Answer
18) The frequency of a tuning fork is 384/s and velocity of sound in air is 352 m/s. Find how far the sound has traversed while fork completes 36 vibrations.

A)

33 m

B)

16.5 m

C)

11 m

D)

22 m

View Answer
19) An air column pipe closed at one end and open at the other end, resonates with a tuning fork and when 45 cm, 99 cm are two other lengths in between these values, the wavelength of sound in air column is :

A)

36cm

B)

54cm

C)

108cm

D)

180cm

View Answer
20) The equation of a stationary wave is,\[y=5\,\sin \,\frac{\pi x}{3\,}\,\cos \,40\,\pi t\] where\[x\] and \[y\] are in cm and t in second. The separation between two consecutive nodes is :

A)

1.5cm

B)

6.0cm

C)

3cm

D)

12cm

View Answer
21) In a hydrogen atom, the electron revolves round the nucleus in an orbit of radius \[0.53\times {{10}^{-10}}m\]. The electric potential produced by the nucleus at the position of the electron is :

A)

17.2V

B)

23.6V

C)

13.6V

D)

27.2V

View Answer
22) In the circuit shown in the given figure the potential difference across \[3\mu F\]capacitor is:

A)

16V

B)

10V

C)

4V

D)

6V

View Answer
23) A parallel plate capacitor has plates of area \[200\,c{{m}^{2}}\] and separation 0.05 cm. It has been charged to a potential difference of 300 V, the energy of the capacitor is :

A)

\[2.0\times {{10}^{-6}}J\]

B)

\[2.4\times {{10}^{-5}}\]

C)

\[0.8\times {{10}^{-5}}J\]

D)

\[1.6\times {{10}^{-5}}J\]

View Answer
24) If 2.2 kW power is transmitted through a \[10\,\,\Omega \]line at 22000 V, the power loss per second in the form of heat will be :

A)

100 W

B)

10W

C)

1 W

D)

0. 1W

View Answer
25) Two 1000 W heaters when connected in parallel across 220 V supply produce heat \[{{Q}_{p}}\] in time t. If they are connected in series across the same power supply the heat produced in the same time is \[{{Q}_{s}}\] then \[{{Q}_{P}}/{{Q}_{S}}\] will be :

A)

0.25

B)

0.5

C)

4

D)

2

View Answer
26) The resistance of a tungsten filament at \[{{150}^{o}}C\]is \[133\,\Omega \] What will be its resistance at \[{{500}^{o}}C\]? The temperature coefficient of resistance of tungsten is 0.0045.

A)

\[258\,\,\Omega \]

B)

\[300\,\,\Omega \]

C)

\[158\,\,\Omega \]

D)

\[58\,\,\Omega \]

View Answer
27) The resistance of the wire is R ohm. Its new resistance, if it is stretched n times to its original length, will be :

A)

\[nR\]

B)

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

C)

\[n{{R}^{2}}\]

D)

\[{{n}^{2}}R\]

View Answer
28) In the given figure the steady state current in \[2\,\,\Omega \] resistor is :

A)

zero

B)

0.6 A

C)

0.9 A

D)

1.5A

View Answer
29) The Wheatstone bridge shown in figure is balanced. The resistance S is :

A)

\[0.7\,\,\Omega \]

B)

\[70\,\,\Omega \]

C)

\[7\,\,\Omega \]

D)

\[700\,\,\Omega \]

View Answer
30) If resistance of a galvanometer is \[6\,\,\Omega \] and it can measure a maximum current of 2 A, then the required shunt resistance to convert it into an ammeter reading upto 6 A will be :

A)

\[5\,\,\Omega \]

B)

\[4\,\,\Omega \]

C)

\[3\,\,\Omega \]

D)

\[2\,\,\Omega \]

View Answer
31) A driving current of 2 A for 6 min in a circuit is flowing then 1000 J of work is to be done. The en-if of the source in the circuit is :

A)

1.38V

B)

1.68V

C)

2.03V

D)

3.10V

View Answer
32) A charged particle is moving in uniform magnetic field in a circular path. The radius of circular path is R. When energy of particle is doubled, then new radius will be :

A)

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

B)

\[2R\]

C)

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

D)

\[\sqrt{2}R\]

View Answer
33) Radius of First orbit of hydrogen is \[0.53\,\overset{o}{\mathop{A}}\,\]. The radius in fourth orbit is :

A)

\[8.48\,\overset{o}{\mathop{A}}\,\]

B)

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

C)

\[4.24\,\overset{o}{\mathop{A}}\,\]

D)

\[0.193\,\overset{o}{\mathop{A}}\,\]

View Answer
34) The light of wavelength 5000 A is incident on a metal whose work function is 2eV, the maximum kinetic energy of the photoelectron will be :

A)

0.2eV

B)

0.47eV

C)

1.5eV

D)

2eV

View Answer
35) Slow neutrons can cause fission in :

A)

uranium-238

B)

uranium-235

C)

hydrogen

D)

thorium

View Answer
36) In a pure electric conductor the width of the forbidden band is :

A)

5 to 10eV

B)

2.1eV

C)

0.8eV

D)

zero

View Answer
37) Magnetic permeability is maximum for :

A)

paramagnetic substances

B)

ferromagnetic substances

C)

diamagnetic substances

D)

all of the above

View Answer
38) Magnetic field along the axis at a point distance d from a short bar magnet, is :

A)

\[\frac{{{\mu }_{0}}}{3N}\times \frac{M}{{{d}^{3}}}\]

B)

\[\frac{{{\mu }_{0}}}{N}\times \frac{M}{{{d}^{3}}}\]

C)

\[\frac{{{\mu }_{0}}}{2\pi }\times \frac{M}{{{d}^{3}}}\]

D)

\[\frac{{{\mu }_{0}}}{4\pi }\times \frac{M}{{{d}^{3}}}\]

View Answer
39) A coil has an inductance of 0.03 H. The emf induced, when the current in the coil changes at a rate of 200 A/s, will be :

A)

15V

B)

12V

C)

9 C

D)

6 V

View Answer
40) The work function of a photometal is 6.626eV the threshold wavelength will be :

A)

\[1575\,\overset{o}{\mathop{A}}\,\]

B)

\[1868\,\overset{o}{\mathop{A}}\,\]

C)

\[2875\,\overset{o}{\mathop{A}}\,\]

D)

\[3921\,\overset{o}{\mathop{A}}\,\]

View Answer
41) A prism has a refracting angle of \[{{60}^{o}}\]. It produces a minimum deviation of \[{{30}^{o}}\], the angle of incidence is :

A)

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

B)

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

C)

\[{{35}^{o}}\]

D)

\[{{15}^{o}}\]

View Answer
42) A convex lens forms a real image of an object for its two different positions on the screen. If height of the images in two cases are 8 cm and 2 cm, then the height of the object will be :

A)

2 cm

B)

4 cm

C)

8 cm

D)

16 cm

View Answer
43) If 1 g of hydrogen is converted into 0.993 g of helium in a thermonuclear reaction, then the energy released in this reaction will be:

A)

\[0.63\times {{10}^{10}}J\]

B)

\[6.63\times {{10}^{14}}J\]

C)

\[63\times {{10}^{10}}J\]

D)

\[0.63\times {{10}^{7}}J\]

View Answer
44) In junction diode, the holes are due to :

A)

missing electron

B)

proton

C)

neutron

D)

none of the above

View Answer
45) The setting sun looks red because of:

A)

external reflection

B)

internal reflection

C)

scattering of light

D)

none of the above

View Answer
46) An X-ray machine is operated at 40 kV. deduce the short wavelength bisect of continuous X-ray \[(h=6.63\times {{10}^{34}}\,Js,c=3\times {{10}^{8}}\,m/s,e=1.6\times {{10}^{-19}}C)\]

A)

\[0.31\,\overset{o}{\mathop{A}}\,\]

B)

\[0.62\,\overset{o}{\mathop{A}}\,\]

C)

\[1.62\,\overset{o}{\mathop{A}}\,\]

D)

\[1.31\,\overset{o}{\mathop{A}}\,\]

View Answer
47) Yellow sodium light has wavelength of \[5893\,\overset{o}{\mathop{A}}\,\] then its frequency will be :

A)

\[16.25\times {{10}^{20}}Hz\]

B)

\[9.20\times {{10}^{19}}Hz\]

C)

\[7.15\times {{10}^{15}}Hz\]

D)

\[5.09\times {{10}^{14}}Hz\]

View Answer
48) If an electron moves in a circular path of radium 15 cm in a magnetic Held of \[4\times {{10}^{-4}}T\], the speed of electron will be :

A)

\[5.87\times {{10}^{8}}m/s\]

B)

\[3.01\times {{10}^{4}}m/s\]

C)

\[2.03\times {{10}^{6}}m/s\]

D)

\[1.06\times {{10}^{7}}m/s\]

View Answer
49) The peak value of an alternating current frequency 50 Hz is 14.14 A. Find the rms value of current, and how much time will the current take in reaching from zero to maximum value?

A)

10 A, 0.005s

B)

15 A, 0.05s

C)

12 A, 0.05s

D)

8 A, 0.01s

View Answer
50) The half-life of radium is 1600 yr. What fraction of sample of radium will be disintegrated after 6400 yr?

A)

\[\frac{13}{16}\]

B)

\[\frac{1}{16}\]

C)

\[\frac{8}{17}\]

D)

\[\frac{15}{16}\]

View Answer
51) Which of the following on hydrolysis, forms acetic acid?

A)

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

B)

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

C)

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

D)

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

View Answer
52) Principle product (X) in the reaction \[C{{H}_{3}}CON{{H}_{2}}\xrightarrow[B{{r}_{2}}+NaOH]{}X\] is:

A)

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

B)

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

C)

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

D)

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

View Answer
53) The molecule with highest percentage of ionic character is:

A)

HF

B)

\[HCl\]

C)

\[HBr\]

D)

HI

View Answer
54) Oxidation number of P in \[{{H}_{3}}P{{O}_{2}}\] is:

A)

+ 5

B)

+ 3

C)

+ 2

D)

+ 1

View Answer
55) Catalyst used in Friedel-Craffs reaction is:

A)

anhydrous aluminium chloride

B)

sodium

C)

ferric chloride

D)

zinc oxide

View Answer
56) A compound with empirical formula \[C{{H}_{2}}O\] has a vapour density of 30. Its molecular formula is:

A)

\[{{C}_{3}}{{H}_{6}}{{O}_{3}}\]

B)

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

C)

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

D)

\[{{C}_{6}}{{H}_{12}}{{O}_{6}}\]

View Answer
57) Which of the following is optically active?

A)

Tartaric acid

B)

Glycerol

C)

Ethylene glycol

D)

Oxalic acid

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

A)

Lucas test

B)

Tollens reagent

C)

Molishtest

D)

none of these

View Answer
59) The acetic acid reacts with \[NaOH\] to give:

A)

\[HCOONa\]

B)

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

C)

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

D)

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

View Answer
60) Toluene on oxidation with chromyl chloride gives:

A)

benzoic acid

B)

benzaldehyde

C)

benzoylchloride

D)

chlorobenzene

View Answer
61) Le-Chatelier principle is applicable only to a:

A)

system in equilibrium

B)

irreversible reaction

C)

homogeneous reaction

D)

heterogeneous reaction

View Answer
62) Gibbs free energy G is defined as :

A)

\[G=H-TS\]

B)

\[G=H+TS\]

C)

\[G=E+TS\]

D)

\[G=E-TS\]

View Answer
63) Sweetest sugar is:

A)

fructose

B)

maltose

C)

glucose

D)

sucrose

View Answer
64) Hydrolysis of sucrose is called :

A)

inversion

B)

esterification

C)

saponification

D)

hydration

View Answer
65) Which of the following enzyme increases the pulse rate and blood pressure?

A)

Estrone

B)

Cortisone

C)

Adrenaline

D)

Thyroxine

View Answer
66) Which ethyl iodide and propyl iodide react with Na in the presence of ether, they form :

A)

two alkanes

B)

four alkanes

C)

three alkanes

D)

one alkane

View Answer
67) Froth floatation process is used in the metallurgy of:

A)

oxide ores

B)

chloride ores

C)

amalgams

D)

sulphide ores

View Answer
68) When chlorine reacts with ethyl alcohol, it forms:

A)

chloroform

B)

chloral

C)

ethyl chloride

D)

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

View Answer
69) The solubility of \[AgCl\] at \[{{20}^{o}}C\] is\[1.435\times {{10}^{-5}}g/L\]. The solubility product of \[AgCl\] is:

A)

\[108\times {{10}^{-3}}\]

B)

\[1.0\times {{10}^{-14}}\]

C)

\[2\times {{10}^{-16}}\]

D)

\[1.035\times {{10}^{-5}}\]

View Answer
70) Which of the following statements is correct for covalent bond?

A)

Its direction is polar

B)

Electrons are shared between two atoms

C)

Valency electrons are attracted in this bond

D)

Its direction is non-polar.

View Answer
71) Which of the following statement is correct?

A)

Phenol is more acidic than ethyl alcohol

B)

Phenol is less acidic than ethyl alcohol

C)

Phenol is more acidic than carboxylic acid

D)

Phenol is more acidic than carbonic acid

View Answer
72) Palmitic acid is:

A)

\[{{C}_{16}}{{H}_{31}}COOH\]

B)

\[{{C}_{17}}{{H}_{35}}COOH\]

C)

\[{{C}_{15}}{{H}_{31}}COOH\]

D)

\[{{C}_{17}}{{H}_{31}}COOH\]

View Answer
73) The values of heat of formation of \[S{{O}_{2}}\] and \[S{{O}_{3}}\] are 298.2 kJ and 98.2kJ. The heat of this reaction will be \[S{{O}_{2}}+1/2{{O}_{2}}\xrightarrow{{}}S{{O}_{3}}\]:

A)

- 396.2 kJ

B)

-200 kJ

C)

-356.2 kJ

D)

+200kJ

View Answer
74) If 0.15 g of a solute dissolved in 15 got solvent is boiled at a temperature higher by \[{{0.216}^{o}}C\], than that of the pure solvent, the molecular weight of the substance, (molal elevation constant for the solvent is \[{{2.16}^{o}}C\]):

A)

100

B)

10.1

C)

10

D)

1.01

View Answer
75) Which of the following is the IUPAC name of the given compound? \[C{{H}_{3}}-CH=\underset{\begin{smallmatrix} | \\ C{{H}_{2}}-C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\]

A)

3-methyl-3-pentene

B)

2-ethyl-2-butene

C)

- 3-methyl-2-pentene

D)

3-ethyl-2-butene

View Answer
76) Which of the following is not Lewis acid?

A)

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

B)

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

C)

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

D)

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

View Answer
77) What is correct sequence of bond order?

A)

\[{{O}_{2}}>{{O}_{2}}^{-}>{{O}_{2}}\]

B)

\[{{O}_{2}}^{+}>{{O}_{2}}>{{O}_{2}}^{-}\]

C)

\[{{O}_{2}}>{{O}_{2}}^{-}>{{O}_{2}}^{+}\]

D)

\[{{O}_{2}}^{-}>{{O}_{2}}^{+}>{{O}_{2}}\]

View Answer
78) The metal present in Vitamin \[{{B}_{12}}\] is :

A)

cobalt

B)

magnesium

C)

manganese

D)

iron

View Answer
79) Gibbs free energy for reaction at equilibrium is:

A)

\[+ve\]

B)

\[-ve\]

C)

zero

D)

either [a] or [b]

View Answer
80) \[{{D}_{2}}O\] (heavy water) is used in:

A)

chemical industry

B)

insecticides preparation

C)

nuclear reactor

D)

pharmaceutical preparations

View Answer
81) The rate constant for a first order reaction is\[k=7\times {{10}^{-4}}{{s}^{-1}}\]. The time taken for the reactant to be reduced to 1/4 of the initial concentration is:

A)

1980s

B)

25905s

C)

9905 s

D)

4455 s

View Answer
82) Bauxite is concentrated by :

A)

chemical method

B)

roasting

C)

magnetic separation

D)

froth floatation process

View Answer
83) Which is wrongly matched?

A)

Duralumin-\[Al+Cu+Mg+Mn\]

B)

Ainico-\[Fe+Al+Ni+CO\]

C)

German silver -\[Cu+Zn+Ni\]

D)

Monel metal-\[Cu+Zn+Sn\]

View Answer
84) Which of the following is coloured?

A)

\[T{{i}^{4+}}\]

B)

\[{{V}^{5+}}\]

C)

\[C{{u}^{+}}\]

D)

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

View Answer
85) The size of particles, in suspension true solution and colloidal solution, varies in the order:

A)

suspension > colloidal > true solution

B)

suspension > true solution > colloidal

C)

true solution > suspension > colloidal

D)

true solution > colloidal > suspension

View Answer
86) Formula of green vitriol is :

A)

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

B)

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

C)

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

D)

\[CuS{{O}_{4}}\,.\,5{{H}_{2}}O\]

View Answer
87) Ethyl alcohol gives ethyl chloride with the help of:

A)

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

B)

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

C)

\[NaCl\]

D)

\[KCl\]

View Answer
88) The solubility product of \[A{{g}_{2}}Cr{{O}_{4}}\] is\[32\times {{10}^{-12}}\]. What is the concentration of \[{{[Cr{{O}_{4}}]}^{2-}}\] ions in that solution?

A)

\[8\times {{10}^{-8}}mol\,{{L}^{-1}}\]

B)

\[16\times {{10}^{-4}}mol\,{{L}^{-1}}\]

C)

\[2\times {{10}^{-4}}mol\,{{L}^{-1}}\]

D)

\[8\times {{10}^{-4}}mol\,{{L}^{-1}}\]

View Answer
89) The change in optical rotation (with time) of freshly prepared solution of sugar is known as:

A)

inversion

B)

anomers

C)

mutarotation

D)

epimers

View Answer
90) Which of the following statement is correct?

A)

All halogens form oxy acid

B)

Only chlorine and bromine form oxy acid

C)

All halogens except fluorine form oxy acid

D)

Only iodine form oxy acid

View Answer
91) Equal volumes of 0.1 M \[HCl\] and \[0.1\,M\,NaOH\] are mixed. The concentration of the mixture will be:

A)

2M

B)

0.05 M

C)

0.02 M

D)

0.1 M

View Answer
92) Phenol can be converted into salicylic acid by:

A)

Cannizaros reaction

B)

Perkins reaction

C)

Tischenko reaction

D)

Reimer-Tiemann reaction

View Answer
93) The amount of electricity required to deposit 0.9 g of aluminium. When the electrode reaction is \[A{{l}^{3+}}+3{{e}^{-}}\to Al\]:

A)

\[9.65\times {{10}^{4}}C\]

B)

\[4.34\times {{10}^{5}}C\]

C)

\[9.65\times {{10}^{3}}C\]

D)

\[1.93\times {{10}^{4}}C\]

View Answer
94) Volume of gas at NTP is \[1.12\times {{10}^{-7}}cc\]. The number of molecules in the gas is :

A)

\[3.01\times {{10}^{12}}\]

B)

\[30.1\times {{10}^{23}}\]

C)

\[3.01\times {{10}^{24}}\]

D)

\[3.01\times {{10}^{20}}\]

View Answer
95) Calculate the standard heat of formation of carbon disulphide in liquid state. Given that the standard heat of combustion of carbon (s) sulphur (s) and carbon disulphide \[(l)\] are 393.3, - 29a72 and -1108.76 \[kJ\,mo{{l}^{-1}}\]respectively is:

A)

+ 128.02 \[kJ\,mo{{l}^{-1}}\]

B)

-12802 \[kJ\,mo{{l}^{-1}}\]

C)

+ 12.802 \[kJ\,mo{{l}^{-1}}\]

D)

-128.02 \[kJ\,mo{{l}^{-1}}\]

View Answer
96) pH value of 0.01 M \[NaOH\] solution is:

A)

20

B)

14

C)

12

D)

10

View Answer
97) Which of the following elements has the maximum electron affinity?

A)

F

B)

\[Cl\]

C)

Br

D)

I

View Answer
98) The boiling points of the following hydrides follows the order of:

A)

\[N{{H}_{3}}>P{{H}_{3}}>As{{H}_{3}}>Sb{{H}_{3}}\]

B)

\[Sb{{H}_{3}}>N{{H}_{3}}>As{{H}_{3}}>P{{H}_{3}}\]

C)

\[Sb{{H}_{3}}>As{{H}_{3}}>N{{H}_{3}}>P{{H}_{3}}\]

D)

\[N{{H}_{3}}>As{{H}_{3}}>P{{H}_{3}}>Sb{{H}_{3}}\]

View Answer
99) If \[HN{{O}_{3}}\] changes into \[{{N}_{2}}O\], the change in oxidation number is:

A)

zero

B)

+4

C)

+2

D)

+ 6

View Answer
100) The mass of an objects changes from 0.002 g to 0.00025 g in a time period of 1500 yr. The half life of the object is :

A)

1000 yr

B)

700 yr

C)

500 yr

D)

250 yr

View Answer
101) Retroviruses have :

A)

only RNA as genetic material

B)

only DNA as genetic material

C)

DNA and RNA as genetic material

D)

genes on nucleoprotein material

View Answer
102) Reindeer moss is a :

A)

pteridophyta

B)

bryophyta

C)

lichen

D)

gymnosperm

View Answer
103) Azolla is used as biofertilizers because it:

A)

has Rhizobium

B)

is fast growing and can form humus

C)

has cyanobacteria

D)

has mycorrhiza

View Answer
104) Lateral conjugation in Spirogyra occurs between individual which :

A)

are heterothallic

B)

are homothallic

C)

have different characters

D)

are floating

View Answer
105) Downs syndrome is characterised by:

A)

21st trisomy

B)

two X and one Y chromosome

C)

19 trisomy

D)

only one X chromosome

View Answer
106) Compositae is also called :

A)

Asteraceae

B)

Myrtaceae

C)

Fabaceae

D)

Zingiberaceae

View Answer
107) In plants translocation occurs in the form of:

A)

starch

B)

sucrose

C)

glucose

D)

fructose

View Answer
108) Which of the following is a component of electron transport chain in mitochondria?

A)

Phytochrome

B)

Cytochrome oxidase

C)

Plastocyanin

D)

Carotenoids

View Answer
109) The function of peroxisomes is:

A)

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

B)

conversion of fat to carbohydrates

C)

detoxification of heavy metals

D)

oxidative phosphorylation

View Answer
110) Cyanide resistant respiration is characteristic of:

A)

viruses

B)

bacteria

C)

plants

D)

animals

View Answer
111) Gibberellin was first isolated from :

A)

oat coleoptile

B)

Actinomycete

C)

fungus

D)

soybean seedlings

View Answer
112) Seedless water melons are obtained by :

A)

triploidy

B)

gibberellin application

C)

haploidy

D)

vegetative propagation

View Answer
113) Ethylene is involved in :

A)

aerobic respiration

B)

anaerobic respiration

C)

climacteric respiration

D)

fermentation

View Answer
114) The function of glyoxysome is :

A)

protein metabolism

B)

carbohydrate metabolism

C)

fat metabolism

D)

protein synthesis

View Answer
115) One gene-one enzyme theory was proposed by:

A)

Temin and Baltimore

B)

Watson and Crick

C)

Robert and Koch

D)

Beadle and Tatum

View Answer
116) Procambium forms :

A)

cork cambium

B)

vascular tissue

C)

vascular cambium

D)

intercalary meristem

View Answer
117) Cells having secretory function have abundant:

A)

lysosomes

B)

endoplasmic reticulum

C)

dictyosomes

D)

osteosomes

View Answer
118) Formation of RNA from DNA is known as :

A)

transcription

B)

translation

C)

replication

D)

recombination

View Answer
119) Which of the following cannot be isolated from plants?

A)

Riboflavin

B)

Niacin

C)

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

D)

Vitamin C

View Answer
120) Stratification is seen in :

A)

Tundra

B)

Tropical forest

C)

Temperate forest

D)

Desert

View Answer
121) Relationship between different organisms can be best described by :

A)

blood web

B)

pyramid of energy

C)

pyramid of mass

D)

Eltonian pyramid

View Answer
122) Biogeochemical cycle of which element has atmospheric phase:

A)

carbon

B)

sodium

C)

phosphorus

D)

magnesium

View Answer
123) Sieve tubes differ from sieve cells because they :

A)

have pores mainly on its walls

B)

are shorter

C)

lack nuclei

D)

are dead

View Answer
124) Cytokinins are formed in :

A)

roots

B)

leaves

C)

fruits

D)

stems

View Answer
125) Geotropic response is perceived by :

A)

root tip

B)

root hairs

C)

elongating cells

D)

mature root cells

View Answer
126) Ultimate source of variation is :

A)

mutation

B)

mitosis

C)

meiosis

D)

fertilization

View Answer
127) Eggs of egg laying mammals are :

A)

macrolecithal

B)

alecithal

C)

mesolecithal

D)

telolecithal

View Answer
128) Mendelian recombinations are due to :

A)

linkage

B)

independent assortment of genes

C)

mutation

D)

dominant characters

View Answer
129) Which of the following is not a function of liver :

A)

Production of bile

B)

Production of insulin

C)

Glycogen storage

D)

Detoxification

View Answer
130) Ureotelic organisms:

A)

do not have urease

B)

do not excrete urea

C)

cannot form uric acid

D)

live in water only

View Answer
131) Rajaji national park is in:

A)

Karnataka

B)

Rajasthan

C)

UttarPradesh

D)

Assam

View Answer
132) Automobile exhaust causes respiratory problems because of the presence of:

A)

CO

B)

\[C{{H}_{4}}\]

C)

chlorine

D)

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

View Answer
133) A plant which is cultivated by tissue culture technique is :

A)

Citrus

B)

Apple

C)

Pear

D)

Guava

View Answer
134) Cytokinin synthesis is maximum in :

A)

leaves

B)

roots

C)

fruits

D)

shoot tip

View Answer
135) Apnoea is:

A)

absence of breathing

B)

decreased ventilation

C)

increased ventilation

D)

laboured breathing

View Answer
136) Field capacity is associated with :

A)

capillary, hygroscopic, water vapour combined

B)

capillary only

C)

gravitational only

D)

gravitational as well as

View Answer
137) Food is translocated in plants through :

A)

xylem

B)

phloem

C)

cambium

D)

cork

View Answer
138) Which of the following organism is pseudocoelomate?

A)

Hookworm

B)

Liver fluke

C)

Jellyfish

D)

Leech

View Answer
139) Veliger larva is found in the phylum :

A)

Mollusca

B)

Echinodermata

C)

Arthropoda

D)

Cnidaria

View Answer
140) Pick out the odd one :

A)

Aniielida

B)

Reptilia

C)

Insecta

D)

Taenia

View Answer
141) Which of the following statement about bee colony is wrong?

A)

Domesticated species are A. indica and A. mellifera

B)

Sex differentiation is due to haplodiploidy

C)

They are female dominant societies

D)

Fertilized eggs develop into sterile females only

View Answer
142) Calmodulin is a :

A)

chlorophyll binding protein

B)

cadmium binding protein

C)

calcium binding protein

D)

carotene binding protein

View Answer
143) Potato is native to :

A)

South America

B)

North America

C)

South East

D)

Australia

View Answer
144) Bacterial mutants requiring special nutrients are known as :

A)

prototrophs

B)

autotrophs

C)

heterotrophs

D)

auxotrophs

View Answer
145) Which of the following is not secreted by anterior pituitary?

A)

Prolactin

B)

FSH

C)

Growth hormone

D)

ADH

View Answer
146) Book lungs are respiratory organs of:

A)

Mollusca

B)

Mammals

C)

Arachnida

D)

Annelida

View Answer
147) Cranial nerves numbering IV, V and VI are respectively:

A)

trochlear, trigeminal, abducens

B)

trochlear, trigeminal, facial

C)

auditory, facial, trochlear

D)

auditory, trochlear, facial

View Answer
148) In ruminants cellulose digestion takes place by:

A)

bacteria

B)

protozoans

C)

virus

D)

both [a] and [b]

View Answer
149) Which of the following organism is useful in degrading organic pollutants :

A)

Nitrosomonas

B)

Chlamydomonas

C)

Actinomycetes

D)

Pseudomonas

View Answer
150) Organisms found in extreme temperature are:

A)

cyanobacteria

B)

archaebacteria

C)

fungi

D)

eubacteria

View Answer
151) Which of the following are the characteristics of deuterosome ?

A)

Spiral cleavage, blastopore becoming anus

B)

Spiral cleavage, blastopore becoming mouth

C)

Radial cleavage, blastopore becoming anus

D)

Radial cleavage, blastopore becoming mouth

View Answer
152) Emulsification is the function of :

A)

bile

B)

lipases

C)

esterases

D)

proteases

View Answer
153) Which of the following is a monocarpic plant?

A)

Bambusa

B)

Sesamum

C)

Lauandual

D)

Pinus

View Answer
154) Cotton is:

A)

epidermal tissue system

B)

vascular tissue system

C)

meristematic tissue system

D)

ground tissue-system

View Answer
155) Marine protozoans lack contractile vacuole because:

A)

osmoregulation is done by cell membrane

B)

they are hypoosmotic to their environment

C)

they are isotonic with their environment

D)

their small body cannot accommodate it

View Answer
156) The maintenance of internal favourable conditions, by a self regulated mechanism causing changes in environment is:

A)

homeostasis

B)

steady state

C)

cyclosis

D)

ecosystem

View Answer
157) Ontogeny recapitulates phylogeny. This is :

A)

Pauling law

B)

Hardy Weinberg law

C)

Biogenetic law

D)

Thomas law

View Answer
158) DNA strands :

A)

have quartenary structure like protein

B)

are bonded by disulphide bonds

C)

have some polarity

D)

are antiparallel

View Answer
159) Endoplasmic reticulum is studied with :

A)

ribosomes

B)

lysosomes

C)

glyoxisomes

D)

microsomes

View Answer
160) Heavy metals are detoxified in plants by :

A)

abscisic acid

B)

alleopathins

C)

phytochelatins

D)

phytoalexins

View Answer
161) Which of the following is not derived from ectoderm?

A)

Inner ear

B)

Middle ear

C)

Optic nerve

D)

Skin

View Answer
162) Predation and parasitism are which type of interactions :

A)

(+,+)

B)

(+,0)

C)

(-,-)

D)

(+,-)

View Answer
163) Unwinding of DNA is done by :

A)

primase

B)

exonuclease

C)

helicase

D)

ligase

View Answer
164) Plants require sulphur for :

A)

DNA replication

B)

protein synthesis

C)

synthesis of glucose

D)

formation of ATP

View Answer
165) Fungi differ from other kingdom in being :

A)

unicellular

B)

unicellular, consumers

C)

multicellular, decomposers

D)

multicellular, consumer

View Answer
166) Confusion technique involves the use of:

A)

juvenile hormone

B)

pheromones

C)

ecdysone

D)

hormones

View Answer
167) A nonsense mutation results into :

A)

stoppage of transcription

B)

change in protein structure

C)

stoppage of protein synthesis

D)

termination of polypeptide chain

View Answer
168) Bone marrow does not occur in:

A)

amphibians

B)

birds

C)

reptilia

D)

apes

View Answer
169) Menstrual How occurs due to lack of

A)

progesterone

B)

FSH

C)

oxytocin

D)

vasopressin

View Answer
170) In vegetative propagation of the tubers which of the following remain constant through generations ?

A)

Morphology, vigour and disease resistance

B)

Morphology only

C)

Vigour only

D)

Vigour and morphology only

View Answer
171) Which one caused mutation in animals?

A)

Change in habit

B)

Change in Golgi body

C)

Change in gene structure

D)

Change in peroxysome

View Answer
172) Electron microscope was discovered by :

A)

M. Knoll and E Ruska

B)

Robertson

C)

Robert Hooke

D)

Lehmann

View Answer
173) The stem of Equisetum is rough due to :

A)

spines

B)

silica

C)

sclerids

D)

fibres

View Answer
174) Sinus venosus is present in :

A)

birds only

B)

birds and mammals

C)

reptiles and birds

D)

fishes, amphibians and reptiles

View Answer
175) Which of the following is not a characteristic of Echinoderm?

A)

Endodermal skeletal system

B)

Water vascular system

C)

Bilateral symmetry

D)

Free floating larval forms

View Answer
176) Funaria and Marchantia differ from each other because Funaria posses :

A)

ventral canal cell

B)

foot

C)

calyptra

D)

protonema

View Answer
177) Ducts of Bellini are present in :

A)

medulla oblongata

B)

liver

C)

kidney

D)

intestine

View Answer
178) Cow dung is appropriately used as :

A)

fuel

B)

building material

C)

medicine

D)

manure

View Answer
179) Protein packaging is done by :

A)

Golgi apparatus

B)

ribosomes

C)

end oplasmic reticulum

D)

nucleolus

View Answer
180) The shape of eye lens is changed by :

A)

pupil

B)

iris

C)

optic nerve

D)

ciliary muscles

View Answer
181) Eutrophication is seen in :

A)

saline soil

B)

agricultural land near thermal plant

C)

lake

D)

mountain

View Answer
182) Which of the following are viral and mosquito borne disease?

A)

Filariasis and typhus

B)

Kala azar and diphtheria

C)

Malaria and chagas disease

D)

Yellow fever and dengue

View Answer
183) Chemofusion and dectrofusion are characteristic of:

A)

mutations

B)

cloning

C)

protoplast fusion

D)

eugenics

View Answer
184) 1 : 2 : 1 phenotypic and genotypic ratio is found in :

A)

complementary genes

B)

blending inheritance

C)

multiple alleles

D)

pseudo alleles

View Answer
185) Tasmanian wolf is a marsupial while wolf is a placental mammal. This shows:

A)

convergent evolution

B)

divergent evolution

C)

parallism

D)

inheritance of acquired characters

View Answer
186) Which of the following is a basic amino acid?

A)

Leucine

B)

Lysine

C)

Methionine

D)

Aspartic acid

View Answer
187) Which of the following is an endangered animal?

A)

Hanuman monkey

B)

Langur

C)

Antelope

D)

Lion tailed macaque

View Answer
188) Which of the following statements about blood transfusion is correct. Blood group B can give blood to?

A)

Blood groups B, AB and receive from group B

B)

Blood group B and receive from group AB

C)

Blood group O and receive from group B

D)

Blood group B, AB and receive from group AB

View Answer
189) DNA synthesis occurs in :

A)

prometaphase

B)

prophase

C)

interphase

D)

telophase

View Answer
190) A cell is heterozygous at three gene loci. How many different type of gametes can it form?

A)

2

B)

3

C)

6

D)

8

View Answer
191) Heterozygosity is most favoured in plants following:

A)

cleistogamy

B)

autogamy

C)

xenogamy

D)

geitonogamy

View Answer
192) In a certain plant red colour flower (R) is dominant over white colour flower (r). When heterozygous Rr plant is crossed 64 offsprings are obtained. The number of white offsprings are:

A)

64

B)

0

C)

16

D)

32

View Answer
193) Cancer of prostate gland is caused due to the exposure to:

A)

lead oxide

B)

cadmium oxide

C)

potassium oxide

D)

chlorine

View Answer
194) The presence of recessive part in a large population is found to be 16%. The frequency of dominant allele in that population is :

A)

0.84

B)

0.32

C)

0.56

D)

0.92

View Answer
195) When a person is exposed to cold surrounding, which of the following does not occur ?

A)

Secretion of adrenal medulla and thyroid increase

B)

Shivering occurs

C)

Vasoconstricdon in skin vessels supplying blood to hairs

D)

Heart beat and volume of blood per stoke increase

View Answer
196) Which of the following is a pollutant from automobiles?

A)

CO

B)

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

C)

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

D)

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

View Answer
197) From which of the following plants a medicine for respiratory disorders is obtained?

A)

Ephedra

B)

Eucalyptus

C)

Cannabis

D)

Saccharum

View Answer
198) The habitat of a species along with its function is :

A)

home range

B)

tersitory

C)

boundary

D)

niche

View Answer
199) Which of the following statement about Lamarck is true ?

A)

He was a French botanist who late become Zoologists

B)

He was an English naturalist who gave theory of evolution

C)

He was a polish scientist and gave law of inheritance

D)

He was a French scientist who gave inheritance by acquired characters

View Answer
200) Two places in India show maximum biological diversity. One of them is Western ghat another is:

A)

Eastern ghat

B)

Coastal region

C)

North-East India

D)

Foot hills of Garhwal region

View Answer

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