Solved papers for DUMET Medical DUMET Medical Solved Paper-2004

DUMET Medical Solved Paper-2004 Total Questions - 200

1) Which of the following graphs between pressure and volume correctly shows isochoric change?

A)

B)



C)



D)



View Answer
2) In a thermodynamic process, pressure of a fixed mass of a gas is changed in such a manner that the gas molecules give out 30 J of heat and 10 J of work is done on the gas. If the initial internal energy of the gas was 40 J, then the final internal energy will be:

A)

30 J

B)

20 J

C)

60 J

D)

40 J

View Answer
3) The rms speed of a group of 7 gas molecules having speeds (6, 4, 2, 0, - 2, - 4, - 6) m/s is :

A)

1.5 m/s

B)

3.4 m/s

C)

9 m/s

D)

4 m/s

View Answer
4) A string of length \[l\]fixed at one end carries a mass m at the other end. The string makes \[\frac{2}{\pi }\]rev/s around the horizontal axis through the fixed end as shown in the figure, the tension in string is :

A)

\[16\,ml\]

B)

\[4\,ml\]

C)

\[8\,ml\]

D)

\[2\,ml\]

View Answer
5) An exploding star is called :

A)

nova

B)

supernova

C)

black hole

D)

neutron star

View Answer
6) For a transistor, in a common emitter arrangement, the alternating current gain P is given by :

A)

\[\beta ={{\left( \frac{\Delta {{l}_{C}}}{\Delta {{l}_{B}}} \right)}_{{{V}_{CE}}}}\]

B)

\[\beta ={{\left( \frac{\Delta {{l}_{B}}}{\Delta {{l}_{C}}} \right)}_{{{V}_{CE}}}}\]

C)

\[\beta ={{\left( \frac{\Delta {{l}_{C}}}{\Delta {{l}_{E}}} \right)}_{{{V}_{CE}}}}\]

D)

\[\beta ={{\left( \frac{\Delta {{l}_{E}}}{\Delta {{l}_{C}}} \right)}_{{{V}_{CE}}}}\]

View Answer
7) A magnetic field :

A)

always exerts a force on charged particle

B)

never exerts a force on charged particle

C)

exerts a force, if the charged panicle is moving across the magnetic field lines

D)

exerts a force, if the charged particle is moving along the magnetic field lines

View Answer
8) The resistance of 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 \[0.0045{{/}^{o}}C\].

A)

\[366\,\Omega \]

B)

\[69\,\Omega \]

C)

\[266\,\Omega \]

D)

\[109\,\Omega \]

View Answer
9) The dimensional formula for the coefficient of viscosity is :

A)

\[[M{{L}^{-1}}{{T}^{-1}}\text{ }\!\!]\!\!\text{ }\]

B)

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

C)

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

D)

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

View Answer
10) The half-life of radium is 1600 yr. The fraction of a sample of radium that would remain after 6400 yr is :

A)

1/4

B)

1/2

C)

1/8

D)

1/16

View Answer
11) If the wavelength of 1st line of Balmer series of hydrogen is \[6561\,\overset{o}{\mathop{A}}\,\], the wavelength of the 2nd line of series will be :

A)

\[\text{9780}\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

B)

\[\text{48660}\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

C)

\[\text{8857}\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

D)

\[\text{4429}\,\overset{\text{o}}{\mathop{\text{A}}}\,\]

View Answer
12) If the energy of a photon corresponding to a wavelength of \[6000\,\overset{o}{\mathop{A}}\,\]is\[3.32\times {{10}^{-19}}J\], the photon energy for a wavelength of \[\text{4000}\,\overset{\text{o}}{\mathop{\text{A}}}\,\] will be:

A)

1.4 eV

B)

4.9 eV

C)

3.1 eV

D)

1.6 eV

View Answer
13) The probability of electrons to be found in the conduction band of an intrinsic semiconductor at a finite temperature :

A)

decreases exponentially with increasing band gap

B)

increases exponentially with increasing band gap

C)

decreases with increasing temperature

D)

is independent of the temperature and the band gap

View Answer
14) The first overtone of a stretched wire of given length is 320 Hz. The first harmonic is :

A)

320 Hz

B)

160 Hz

C)

480 Hz

D)

640 Hz

View Answer
15) What is minimum length of a tube, open at both ends, that resonates with tuning fork of frequency 350 Hz? (velocity of sound in air = 350 m/s]

A)

50 cm

B)

100 cm

C)

75cm

D)

25cm

View Answer
16) The magnifying power of a telescope is 9. When it is adjusted for parallel rays, the distance between the objective and the eyepiece is found to be 20 cm. The focal lengths of lenses are:

A)

18 cm, 2 cm

B)

11 cm, 9 cm

C)

10 cm, 10 cm

D)

15 cm, 5 cm

View Answer
17) In Youngs double slit experiment, the fringe width is found to be 0.4 mm. If the whole apparatus is immersed in water of refractive index 4/3, without disturbing the geometrical arrangement, the new fringe width will be :

A)

0.30mm

B)

0.40mm

C)

0.53mm

D)

450 urn

View Answer
18) A substance breaks down by a stress of\[{{10}^{6}}N/{{m}^{2}}\]. If the density of the material of the wire is \[3\times {{10}^{3}}kg/{{m}^{3}}\], then the length of the wire of the substance which will break under its own weight when suspended vertically, is:

A)

66.6m

B)

60.0m

C)

33,3m

D)

30.0m

View Answer
19) A square wire frame of size L is dipped in a liquid. On taking out, a membrane is formed. If the surface tension of liquid is T, the force acting on the frame will be :

A)

2TL

B)

4TL

C)

8TL

D)

10 TL

View Answer
20) A black body radiates energy at the rate of \[1\times {{10}^{5}}J/s{{m}^{2}}\] at a temperature of \[{{227}^{o}}C\]. The temperature to which it must be heated, so that it radiates energy at the rate of \[1\times {{10}^{9}}J/s{{m}^{2}}\], is:

A)

5000 K

B)

\[{{5000}^{o}}C\]

C)

500 K

D)

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

View Answer
21) A stretched string is vibrating according to the equation \[y=5\,\sin \,\left( \frac{\pi x}{2} \right)\cos \,4\pi t\] where \[y\] and \[x\] are in cm and t in second. The distance between two consecutive nodes on the string is:

A)

2 cm

B)

4 cm

C)

8 cm

D)

16 cm

View Answer
22) In the given diagram, the reading of the ammeter is (when the internal resistance of the battery is zero) :

A)

40/29 A

B)

10/9 A

C)

5/3 A

D)

2 A

View Answer
23) Photons of energy 5.5eV fall on the surface of the metal emitting photoelectrons of maximum kinetic energy 4.0eV. The stopping potential required for these electrons are :

A)

5.5V

B)

1.5V

C)

9.5V

D)

4.0V

View Answer
24) Figure shows a body of mass m moving with a uniform speed v along a circle of radius r. The change in velocity in going from A to B is:

A)

\[v\sqrt{2}\]

B)

\[v/\sqrt{2}\]

C)

\[v\]

D)

zero

View Answer
25) Which radiations are used in treatment of muscles ache?

A)

Infrared

B)

Ultraviolet

C)

Microwave

D)

X-rays

View Answer
26) Angular width \[(\theta )\] of central maximum of a diffraction pattern of a single slit does not depend upon:

A)

distance between slit and source

B)

wavelength of light used

C)

width of the slit

D)

frequency of light used

View Answer
27) A 15 g ball is shot from a spring gun whose spring has a force constant of 600 N/m. The spring is compressed by 5 cm. The greatest possible horizontal range of the ball for this compression is: \[(g=10\,m/{{s}^{2}})\]

A)

6.0m

B)

10.0m

C)

12.0m

D)

8.0m

View Answer
28) An engine pumps up 100 kg of water trough a height of 10 m in 5 s. Given that the efficiency of the engine is 60%. If \[g=10\,m{{s}^{-2}}\], the power of the engine is :

A)

3.3 kW

B)

0.33 kW

C)

0.033 kW

D)

33 kW

View Answer
29) The conduction current is same as displacement current when source is :

A)

AC only

B)

DC only

C)

both AC and DC

D)

neither DC nor AC

View Answer
30) A transformer is having 2100 turns in primary and 4200 turns in secondary. An AC source of 120 V, 10 A is connected to its primary. The secondary voltage and current are :

A)

240 V, 5 A

B)

120 V, 10 A

C)

240 V, 10 A

D)

120 V, 20 A

View Answer
31) A rectangular coil of 20 turns and area of cross section \[25\,\,c{{m}^{2}}\] has a resistance of \[100\,\,\Omega \]. If a magnetic Held which is perpendicular to the plane of coil changes at a rate of 1000 T/s, the current in the coil is :

A)

1A

B)

50 A

C)

0.5 A

D)

5 A

View Answer
32) A vertical straight conductor carries a current vertically upwards. A point P lies to the east of it at a small distance and another point Q lies to the west at the same distance. The magnetic field at P is :

A)

greater than at Q

B)

same as at Q

C)

less than at Q

D)

greater or less than at Q, depending upon the strength of current

View Answer
33) A voltmeter has resistance of G ohm and range of V volt. The value of resistance used in series to convert it into a voltmeter of range nV volt is:

A)

\[n\,\,\,G\]

B)

\[(n-1)\,\,G\]

C)

\[\frac{G}{n}\]

D)

\[\frac{G}{n-1}\]

View Answer
34) A bar magnet of length 3 cm has points A and B along its axis at distances of 24 cm and 48 cm on the opposite sides. Ratio of magnetic fields at these points will be:

A)

8

B)

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

C)

3

D)

4

View Answer
35) A particle in SHM is described by the displacement equation \[x\,(t)=A\,\cos \,(\omega \,t+\theta )\]. If the initial \[(t=0)\] position of the particle is 1 cm and its initial velocity is \[\pi \,cm/s\], what is its amplitude? The angular frequency of the particle is \[\pi {{s}^{-1}}:\]

A)

1cm

B)

\[\sqrt{2}\]cm

C)

2cm

D)

2.5cm

View Answer
36) The magnetic Held at a distance r from a long wire carrying current i is 0.4 T. The magnetic field at a distance 2 r is :

A)

0.2T

B)

0.8 T

C)

0.1 T

D)

1.6 T

View Answer
37) An underwater sonar source operating at a frequency of 60 kHz directs its beam towards the surface. If velocity of sound in air is 330 m/s, wavelength and frequency of the waves in air are :

A)

5.5 mm, 60 kHz

B)

330 m, 60 kHz

C)

5.5 mm, 30 kHz

D)

5.5 mm, 80 kHz

View Answer
38) Velocity of light in diamond, glass and water decreases in the following order :

A)

water > glass > diamond

B)

diamond > glass > water

C)

diamond > water > glass

D)

water > diamond > glass

View Answer
39) A child swinging on a swing m a sitting position, stands up, then the time period of the swing will:

A)

increase

B)

decrease

C)

remain same

D)

increase if the child is long and decrease if the child is short

View Answer
40) When a sphere of moment of inertia \[I\]about an axis through centre of gravity and mass m rolls from rest down an inclined plane without slipping, its kinetic energy is :

A)

\[\frac{1}{2}I{{\omega }^{2}}\]

B)

\[\frac{1}{2}m{{v}^{2}}\]

C)

\[I\omega +mv\]

D)

\[\frac{1}{2}I{{\omega }^{2}}+\frac{1}{2}m{{v}^{2}}\]

View Answer
41) The angular momentum of a system of particles is not conserved :

A)

when a net external force acts upon the system

B)

when a net external torque is acting upon the system

C)

when a net external impulse is acting upon the system

D)

none of the above

View Answer
42) A truck and a car are moving with equal velocity. On applying brakes, both will stop after certain distance, then :

A)

truck will cover less distance before stopping

B)

car will cover less distance before stopping

C)

both will cover equal distance

D)

none of these

View Answer
43) A lift is moving downwards with an acceleration equal to acceleration due to gravity. A body of mass m kept on the floor of the lift is pulled horizontally. If the coefficient of friction is \[\mu \] then the frictional resistance offered by the body is :

A)

\[mg\]

B)

\[\mu mg\]

C)

\[2\mu mg\]

D)

zero

View Answer
44) A ball is projected upwards from the top of tower with a velocity \[50\,\,m{{s}^{-1}}\] making an angle \[{{30}^{o}}\] with the horizontal. The height of tower is 70 m. After how many seconds from the instant of throwing will the ball reach the ground?

A)

2s

B)

5s

C)

7s

D)

9s

View Answer
45) Find the torque of a force \[\vec{F}=-3\hat{i}+\hat{j}+5\hat{k}\]acting at the point \[\vec{r}=7\hat{i}+3\,\hat{J}+\hat{k}\]

A)

\[14\hat{i}-38\,\hat{J}+16\,\hat{k}\]

B)

\[4\hat{i}+4\,\hat{J}+6\,\hat{k}\]

C)

\[-14\hat{i}+38\,\hat{J}-16\,\hat{k}\]

D)

\[-21\,\hat{i}+3\,\hat{J}+5\,\hat{k}\]

View Answer
46) A stone released with zero velocity from the top of tower reaches the ground in 4 s. The height of the tower is about:

A)

20m

B)

40m

C)

80m

D)

160m

View Answer
47) Acceleration-time graph of a body is shown. The Corresponding velocity-time graph of the same body is:

A)



B)



C)



D)

View Answer
48) A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is10 V. The potential at a distance of 2 cm from the center of the sphere is :

A)

zero

B)

10 V

C)

4V

D)

10/3V

View Answer
49) In a certain charge distribution, all points having zero potential can be joined by a circle an S. Points inside S have positive potential points outside S have negative potential. A positive charge, which is free to move, is placed inside S:

A)

it will remain in equilibrium

B)

it can move inside S, but it cannot cross S

C)

it must cross S at some time

D)

it may move, but will ultimately return to its starting point

View Answer
50) The escape velocity from earth is\[11.2\,\,km\,{{s}^{-1}}\]. Another planet is having mass 1000 times and radius 10 times that of the earth, then escape velocity at that planet will be:

A)

11.2 km/s

B)

112 km/s

C)

1.12 km/s

D)

1120 km/s

View Answer
51) In Friedel-Crafts acylation, besides \[AlC{{l}_{3}}\], the other reactants are :

A)

B)



C)



D)



View Answer
52) The prefix zepto stands for:

A)

\[{{10}^{9}}\]

B)

\[{{10}^{-12}}\]

C)

\[{{10}^{-15}}\]

D)

\[{{10}^{-21}}\]

View Answer
53) The boiling point of benzene is 353.23 K. When 1.80 g of a nonvolatile solute was dissolved in 90 g of benzene, the boiling point is raised to 354.11 K. The molar mass of the solute is : [\[{{K}_{b}}\] for benzene = 2.53 K kg \[mo{{l}^{-1}}\]]

A)

5.8 g \[mo{{l}^{-1}}\]

B)

0.58 g \[mo{{l}^{-1}}\]

C)

58 g \[mo{{l}^{-1}}\]

D)

0.88 g \[mo{{l}^{-1}}\]

View Answer
54) One fermi is :

A)

\[{{10}^{-13}}cm\]

B)

\[{{10}^{-15}}cm\]

C)

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

D)

\[{{10}^{-12}}cm\]

View Answer
55) Which of the following reagents will produce salicylaldehyde on reaction with phenol?

A)

\[CHC{{l}_{3}}/NaOH\]

B)

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

C)

\[C{{H}_{2}}C{{l}_{2}}/NaOH\]

D)

\[C{{H}_{3}}Cl/NaOH\]

View Answer
56) Which of the following is correct?

A)

Crystal system - Cubic Axial Distance - \[a\ne b=c\] Axial angles - \[\alpha =\beta \ne \gamma \] Examples - Cu, KCl

B)

Crystal system - Monoclinic Axial Distance - \[\alpha \ne b=c\]Axial angles - \[\alpha \ne \beta =\gamma \]\[={{90}^{o}}\]Examples - \[pbCr{{O}_{2}}\],\[pbCr{{O}_{4}}\]

C)

Crystal system - Rhombohedral Axial Distance - a = b = c Axial angles - \[\alpha =\beta =\gamma \]\[\ne {{90}^{o}}\] Examples - \[CaC{{O}_{3}}\],Hgs

D)

Crystal system - Triclinic Axial Distance - a = b = c Axial angles - \[\alpha \ne \beta =\gamma \]\[\ne {{90}^{o}}\] Examples - \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]\[CuS{{O}_{4}}5{{H}_{2}}O\]

View Answer
57) The monomer of nylon-6 is/are :

A)

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

B)

C)

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

D)

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

View Answer
58) The enthalpy change for the reaction of 50.00 mL of ethylene with 50.00 mL of H^ at 1.5 atm pressure is \[\Delta H=-0.31\,kJ\]. The value of \[\Delta E\]will be:

A)

0.235 kJ

B)

0.3024 kJ

C)

2.567 kJ

D)

0.0076 kJ

View Answer
59) The solubility product of \[A{{g}_{2}}Cr{{O}_{4}}\] is\[32\times {{10}^{-12}}\]. What is the concentration of \[CrO_{4}^{2-}\] ions in that solution (in g ions \[{{L}^{-1}}\])?

A)

\[2\times {{10}^{-4}}\]

B)

\[8\times {{10}^{-4}}\]

C)

\[8\times {{10}^{-8}}\]

D)

\[16\times {{10}^{-4}}\]

View Answer
60) On reduction with hydrogen, 3.6 g of an oxide of metal left 3.2 g of metal. If the vapour density of metal is 32 , the simplest formula of the oxide would be :

A)

MO

B)

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

C)

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

D)

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

View Answer
61) Lattice energy of alkali metal chlorides follows the order :

A)

\[LiCl>NaCl>KCl>RbCl>CsCl\]

B)

\[CsCl>NaCl>KCl>RbCl>LiCl\]

C)

\[LiCl>CsCl>NaCl>KCl>RbCl\]

D)

\[NaCl>LiCl>KCl>RbCl>CsCl\]

View Answer
62) The structural formula of indigo dye is :

A)

B)

C)

D)

View Answer
63) Calculate \[\Delta {{G}^{o}}\] for conversion of oxygen? To ozone \[3/2{{O}_{2}}(g)\xrightarrow{{}}{{O}_{3}}(g)\]at 298 K, if \[{{K}_{p}}\]for this conversion is \[2.47\times {{10}^{-29}}\]:

A)

163 kJ \[mo{{l}^{-1}}\]

B)

\[2.4\times {{10}^{2}}kJ\,mo{{l}^{-1}}\]

C)

1.63 kJ \[mo{{l}^{-1}}\]

D)

\[2.38\times {{10}^{6}}kJ\,mo{{l}^{-1}}\]

View Answer
64) The right order of the solubility of sulphates of alkaline earth metals in water is :

A)

\[Be>Ca>Mg>Ba>Sr\]

B)

\[Mg>Be>Ba>Ca>Sr\]

C)

\[Be>Mg>Ca>Sr>Ba\]

D)

\[Mg>Ca>Ba>Be>Sr\]

View Answer
65) Gas A is bubbled through slaked lime when a white precipitate is formed. On prolonged bubbling, the precipitate is dissolved. On heating the resultant solution, the white precipitate reappears with the evolution of gas B. The gases A and B respectively are:

A)

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

B)

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

C)

CO and CO

D)

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

View Answer
66) Which of the following statements is true for fuel cells?

A)

They run till the reactants are active

B)

They are free from pollution

C)

They are more efficient

D)

All of the above

View Answer
67) \[R-CH=C{{H}_{2}}+CO+{{H}_{2}}\]\[\xrightarrow[high\text{ }pressure]{High\,\,tem}RC{{H}_{2}}C{{H}_{2}}CHO\] The above reaction is:

A)

Mendius reaction

B)

Oxo process

C)

Sandmeyer reaction

D)

Stephens reaction

View Answer
68) Of the following acids, the one that is strongest is :

A)

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

B)

\[HOCl\]

C)

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

D)

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

View Answer
69) The boiling points of the following hydrides follow the order of:

A)

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

B)

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

C)

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

D)

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

View Answer
70) Strongest conjugate base is :

A)

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

B)

\[B{{r}^{-}}\]

C)

\[{{F}^{-}}\]

D)

\[{{I}^{-}}\]

View Answer
71) The concentration of \[[{{H}^{+}}]\] and concentration of \[[O{{H}^{-}}]\] of a 0.1 aqueous solution of 2% ionised weak acid is: [Ionic product of water =1 x 10~14]

A)

\[2\times {{10}^{-3}}M\] and \[5\times {{10}^{-12}}M\]

B)

\[1\times {{10}^{3}}M\] and \[3\times {{10}^{-11}}M\]

C)

\[0.02\times {{10}^{-3}}M\] and \[5\times {{10}^{-11}}M\]

D)

\[3\times {{10}^{-2}}M\] and \[4\times {{10}^{-13}}M\]

View Answer
72) 0.2 g of fine animal charcoal is mixed with half-litre of acetic acid solution and shaken for 30 min :

A)

concentration remains same

B)

concentration increases

C)

concentration of the solution decrease

D)

none of the above

View Answer
73) A compound has a vapour density of 29. On warming an aqueous solution of alkali, it gives a yellow precipitate. The compound is:

A)

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

B)

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

C)

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

D)

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

View Answer
74) Calculate de-Broglie wavelength of an electron travelling at 1% of the speed of light:

A)

\[2.73\times {{10}^{-24}}\]

B)

\[2.42\times {{10}^{-10}}\]

C)

\[242.2\times {{10}^{10}}\]

D)

none of these

View Answer
75) In the reaction \[HN{{O}_{3}}+{{P}_{4}}{{O}_{10}}\xrightarrow{{}}4HP{{O}_{3}}+X\], the product X is:

A)

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

B)

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

C)

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

D)

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

View Answer
76) Which of the following information can be obtained on the basis of Le-Chateliers principle?

A)

Entropy change in a reaction

B)

Equilibrium constant of a chemical reaction

C)

Dissociation constant of weak acid

D)

Shift in equilibrium position on changing value of a constant

View Answer
77) One mole of NaCI (s) on melting absorbed 30.5 kJ of heat and its entropy is increased by 28.8 \[J{{K}^{-1}}\]. The melting point of NaCI is:

A)

1059 K

B)

30.5 K

C)

28.8 K

D)

28800 K

View Answer
78) Sulphur-35 (34.96903 amu) emits a \[\beta \] particle but no \[\gamma \]-rays, the product is chlorine-35 (34.96885 amu). The maximum energy emitted by the \[\beta \]-particle is :

A)

0.016767 MeV

B)

1.6758 MeV

C)

0.016758 MeV

D)

16.758 MeV

View Answer
79) At what pressure will a quantity of gas which occupies 100 mL at a pressure of 720 mm, occupy a volume of 84 mL?

A)

736.18mm

B)

820.20mm

C)

784.15mm

D)

857.14mm

View Answer
80) A coordination complex compound of cobalt has the molecular formulae containing five ammonia molecules, one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution on reacting this solution with excess of \[AgN{{O}_{3}},\,AgCl\] precipitate. The ionic formula for this complex would be :

A)

\[[Co{{(N{{H}_{3}})}_{5}}(N{{O}_{2}})]C{{l}_{2}}\]

B)

\[[Co{{(N{{H}_{3}})}_{5}}Cl][Cl(N{{O}_{2}})]\]

C)

\[[Co{{(N{{H}_{3}})}_{4}}(N{{O}_{2}})Cl][(N{{H}_{3}})Cl]\]

D)

\[[Co{{(N{{H}_{3}})}_{5}}][{{(N{{O}_{2}})}_{2}}C{{l}_{2}}]\]

View Answer
81) Iron pipes lying under acidic soil are often attached to blocks of magnesium for protection from rusting. Magnesium offers protection to iron against corrosion because it:

A)

prevents air from reaching the surface of iron

B)

is more readily converted into positive ions

C)

is heavier than iron

D)

forms a corrosion-resistant alloy with iron

View Answer
82) The dyes which are applied to the fabric in the colourless reduced state and then oxidised to coloured state are called :

A)

vat dyes

B)

disperse dyes

C)

triphenyl methane dye

D)

azo dyes

View Answer
83) In \[PO_{4}^{3-}\] ion, the formal charge on each oxygen atom and P?0 bond order respectively are :

A)

-0.75, 1.25

B)

-0.75, 1.0

C)

-0.75, 0.6

D)

-3.1, 25

View Answer
84) Which of the following alkali metal ions has lowest ionic mobility in aqueous solutions?

A)

\[R{{b}^{+}}\]

B)

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

C)

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

D)

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

View Answer
85) The reason for double helical structure of DNA is operation of:

A)

electrostatic attractions

B)

van der Waals forces

C)

dipole-dipole interactions

D)

hydrogen bonding

View Answer
86) Bond order of \[{{O}_{2}}\] is:

A)

2

B)

1.5

C)

3

D)

3.5

View Answer
87) Which of the following statement is false?

A)

Photochemical smog causes irritation in eyes

B)

London smog is a mixture of smoke and fog

C)

Photochemical smog results in the formation of PAN

D)

London smog is oxidising in nature

View Answer
88) The total number of possible isomers of the complex compound \[[C{{u}^{II}}{{(N{{H}_{3}})}_{4}}][P{{t}^{II}}C{{l}_{4}}]\] is:

A)

3

B)

6

C)

5

D)

4

View Answer
89) A certain buffer solution contains equal concentrations of \[{{X}^{-1}}\] and HX. \[{{K}_{b}}\] for \[{{X}^{-}}\] is\[{{10}^{-10}}\]. The pH of the buffer solution is:

A)

4

B)

10

C)

7

D)

14

View Answer
90) The most efficient agent for the absorption of 503 is:

A)

90% \[{{H}_{2}}S{{O}_{4}}\]

B)

98% \[{{H}_{2}}S{{O}_{4}}\]

C)

80% \[{{H}_{2}}S{{O}_{4}}\]

D)

20% \[{{H}_{2}}S{{O}_{7}}\]

View Answer
91) Primary aldehyde on oxidation gives:

A)

esters

B)

carboxylic acid

C)

ketones

D)

alcohols

View Answer
92) IUPAC name for the compound is:

A)

a-methyl cyclohexanone

B)

2-methyl cyclohexanone

C)

heptanone-2

D)

methyl cyclo-hexanone

View Answer
93) What is the volume of 0.1 \[N-HCl\] required to react completely with 1.0 g of pure calcium carbonate?

A)

100 \[c{{m}^{3}}\]

B)

150 \[c{{m}^{3}}\]

C)

250 \[c{{m}^{3}}\]

D)

200 \[c{{m}^{3}}\]

View Answer
94) \[C{{H}_{3}}COOH\] is reacted with \[CH\equiv CH\] in presence of \[H{{g}^{2+}}\], the product is:

A)

\[\underset{\begin{smallmatrix} | \\ C{{H}_{2}}(OOC{{H}_{3}}) \end{smallmatrix}}{\mathop{C}}\,{{H}_{2}}(OOCC{{H}_{3}})\]

B)

\[\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}\,{{H}_{2}}-(OOC-C{{H}_{3}})\]

C)

\[\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}\,H{{(O\,OC-C{{H}_{3}})}_{2}}\]

D)

none of the above

View Answer
95) The four quantum numbers of the valence electron of potassium are :

A)

4, 1, 0 and \[\frac{1}{2}\]

B)

4, 0,1 and \[\frac{1}{2}\]

C)

4, 0, 0 and \[+\frac{1}{2}\]

D)

4, 1, 1, and \[\frac{1}{2}\]

View Answer
96) \[CuS{{O}_{4}}\] reacts with KCN solution and forms :

A)

\[{{K}_{3}}[Cu{{(CN)}_{4}}]\]

B)

\[Cu(CN)\]

C)

\[Cu{{(CN)}_{2}}\]

D)

\[{{K}_{4}}[Cu{{(CN)}_{6}}]\]

View Answer
97) 1.00 g of a non-electrolyte solute dissolved in 50.5 g of benzene lowered the freezing point of benzene by 0.40 K. \[{{K}_{f}}\] for benzene is 5.12 kg \[mo{{l}^{-1}}\]. Molecular mass of the solute will be:

A)

256 g \[mo{{l}^{-1}}\]

B)

2.56 g \[mo{{l}^{-1}}\]

C)

\[512\times {{10}^{3}}g\,\,mo{{l}^{-1}}\]

D)

\[2.56\times {{10}^{4}}g\,\,mo{{l}^{-1}}\]

View Answer
98) \[C{{H}_{2}}=C{{H}_{2}}\xrightarrow{Br/{{H}_{2}}O}A\],In the above reaction the compound A is:

A)

ethylene bromohydrin

B)

1, 2-dibromo ethane

C)

ethanol

D)

none of the above

View Answer
99) Which of the following will not undergo hydrolysis in water?

A)

Ammonium sulphate

B)

Sodium sulphate

C)

Copper sulphate

D)

All the salts will hydrolyse

View Answer
100) \[\underset{{{S}^{o}}(298K)\,J{{K}^{-1}}-10.7}{\mathop{{{H}^{+}}(aq)+O{{H}^{-}}(aq)}}\,\xrightarrow{{}}\underset{+70}{\mathop{{{H}_{2}}O\,\,(l)}}\,\] Standard entropy change for the above reaction is:

A)

\[60.3\,\,J{{K}^{-1}}mo{{l}^{-1}}\]

B)

\[80.7\,\,J{{K}^{-1}}mo{{l}^{-1}}\]

C)

\[-70.7\,\,J{{K}^{-1}}mo{{l}^{-1}}\]

D)

\[+10.7\,\,J{{K}^{-1}}mo{{l}^{-1}}\]

View Answer
101) Cyanide resistant pathway is:

A)

anaerobic respiration

B)

aerobic respiration

C)

both [a] and [b]

D)

none of the above

View Answer
102) Which of the following is used for observing spindle fibres?

A)

Dark Held microscope

B)

Phase contrast microscope

C)

Polarisation microscope

D)

Scanning transmission electron microscope

View Answer
103) Following technique uses radioactive precursors for observing metabolic activities of macromolecules, is:

A)

chromatography

B)

density gradient centrifugation or cell fractionation

C)

autoradiography

D)

electron microscope

View Answer
104) Secondary cell wall grows by :

A)

deamination

B)

calcicole

C)

apposition

D)

none of these

View Answer
105) Single stranded DNA is found in :

A)

polio viruses

B)

rice dwarf virus

C)

TMV

D)

\[\phi \] X174

View Answer
106) Agranal chloroplast are found in :

A)

Bryophytes

B)

Gymnospenns

C)

Green algae

D)

Angiosperms

View Answer
107) Ribosomes that occur exclusively inm itochondria is :

A)

70S

B)

55S

C)

30S

D)

50S

View Answer
108) Number of carboxylation occur in Calvin cycle, is:

A)

0

B)

C)

2

D)

3

View Answer
109) R.Q. (Respiratory Quotient) is defined as :

A)

volume of \[C{{O}_{2}}\] evolved = volume of \[{{O}_{2}}\] consumed

B)

\[\frac{\text{Volume}\,\text{of}\,{{\text{O}}_{\text{2}}}\,\text{consumed}}{\text{Volume}\,\text{of}\,\text{C}{{\text{O}}_{\text{2}}}\,\text{evolved}}\]

C)

\[\frac{\text{Volume}\,\text{of}\,\text{C}{{\text{O}}_{\text{2}}}\,\text{evolved}}{\text{Volume}\,\text{of}\,{{\text{C}}_{\text{2}}}\,\text{consumed}}\]

D)

\[\frac{\text{Volume}\,\text{of}\,{{\text{O}}_{\text{2}}}\,\text{evolved}}{\text{Volume}\,\text{of}\,\text{C}{{\text{O}}_{\text{2}}}\,\text{consumed}}\]

View Answer
110) Pseudostratified epithelium is found in :

A)

pharynx

B)

trachea

C)

testis

D)

epidermis

View Answer
111) Activity of succinic dehydrogenase involves the following in TCA cycle :

A)

NAD

B)

FAD

C)

GDP

D)

ATP

View Answer
112) The process by which there is inhibition of aerobic respiration by atmospheric \[{{O}_{2}}\] is:

A)

Pasteurs effect

B)

Calvins effect

C)

Darwins effect

D)

None of the above

View Answer
113) Decarboxylation is not involved in :

A)

electron transport system

B)

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

C)

Krebs cycle

D)

alcoholic fermentation

View Answer
114) Which of the following is involved in the catalysis of link reaction during aerobic respiration?

A)

Vitamin-A

B)

Vitamin-\[{{B}_{1}}\]

C)

Vitamin-\[{{B}_{6}}\]

D)

Vitamin-K

View Answer
115) DNA and histone proteins are synthesized during the following phase of cell cycle :

A)

S-phase

B)

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

C)

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

D)

None of these

View Answer
116) Chromosomes that determine male sex in Melandrium plant is:

A)

Y chromosome

B)

X chromosome

C)

XX chromosome

D)

None of the above

View Answer
117) Aqueduct of sylvius (iter) connects :

A)

1st and 2nd ventricles

B)

3rd and 4th ventricles

C)

2nd and 3rd ventricles

D)

4th and 1st ventricles

View Answer
118) Spores with chloroplast is present in :

A)

Selaginella

B)

Equisetum

C)

Puccinia

D)

Rhizopus

View Answer
119) Anabaena has an immense potential as a :

A)

biofertilizer

B)

food

C)

medicines

D)

sewage disposal

View Answer
120) Which of the following gymnosperm has the presence of vessel?

A)

Pinus

B)

Ephedra

C)

Cycas

D)

None of these

View Answer
121) Physiological heterospory is seen in :

A)

Chlamydomonas

B)

Rhizopus

C)

Selaginella

D)

Lycopodium

View Answer
122) Polyembryony is shown by :

A)

Selaginella

B)

Pinus

C)

Mangifera

D)

None of these

View Answer
123) Wood ofCycos is :

A)

pycnoxylic only

B)

polyxylic only

C)

manoxylic and diploxylic

D)

none of the above

View Answer
124) The stele found in monocot is :

A)

haplostele

B)

atactostele

C)

dictyostele

D)

actinostele

View Answer
125) Smallest flower is:

A)

Wolffia microspermia

B)

Salvinia

C)

Pistfa

D)

Lemna

View Answer
126) Pseudocoelom is not found in :

A)

Ascaris

B)

Ancylostoma

C)

Fasdola

D)

None of these

View Answer
127) Integumentary nephridia are also called:

A)

enteronephric

B)

exonephric

C)

sometimes enteronephric and sometimes exonephric

D)

both [a] and [b]

View Answer
128) Herdmania belongs to which subphyla :

A)

Cephalochordata

B)

Hemichordata

C)

Urochordata

D)

Protochordata

View Answer
129) Salmon is:

A)

anadromous fish

B)

catadromous fish

C)

mollusca

D)

insect

View Answer
130) Which of the following passage way is part of cloaca of vertebrates?

A)

Rectum

B)

The reproductive tract

C)

The urinary tract

D)

All of the above

View Answer
131) One gene one enzyme hypothesis was given by:

A)

Jacob and Monod

B)

McClintock

C)

Meselson and Stahl

D)

Beadle and Tatum

View Answer
132) Ribosome mainly has :

A)

DNA

B)

RNA

C)

carbohydrate

D)

none of these

View Answer
133) Hybrid vigour is due to :

A)

heterosis

B)

epistasis

C)

complementary genes

D)

supplementary genes

View Answer
134) The phenotypic ratio obtained in quantitative inheritance of a dihybrid cross is :

A)

1 : 2 : 1

B)

1 : 4 : 6 : 4 : 1

C)

1 : 6 : 15 : 20 : 15 : 6: 1

D)

9 : 3 : 3 : 1

View Answer
135) In Limnaea shell coiling is due to :

A)

cytoplasmic inheritance

B)

nuclear inheritance

C)

recessive inheritance

D)

none of the above

View Answer
136) Binomial nomenclature was given by:

A)

Aristotle

B)

Hutchinson

C)

Julian Huxley

D)

Linnaeus

View Answer
137) Vernalisation is response due to :

A)

high temperature

B)

optimum temperature

C)

low temperature

D)

none of the above

View Answer
138) The number of chromosomes in Klinefelters syndrome is :

A)

47(44 + XXY)

B)

47 (44 + XXX)

C)

47 [46 + 1 (chromosome 21)]

D)

none of the above

View Answer
139) Oblique ovary is found in family :

A)

Brassicaceae

B)

Compositae

C)

Leguminosae

D)

Solanaceae

View Answer
140) Codes of m-RNA and proteins are :

A)

coplanar

B)

colinear

C)

nonlinear

D)

irregular

View Answer
141) Abnormal gene is replaced by normal gene through:

A)

gene therapy

B)

medicines

C)

cloning

D)

radiation

View Answer
142) Smallest part of DNA, which takes part in crossing over is called:

A)

gene

B)

allele

C)

recon

D)

( d) none of these

View Answer
143) Gibberellin was first reported from :

A)

algae

B)

fungus

C)

bacteria

D)

bryophyte

View Answer
144) Maximum photosynthetic activity takes place in:

A)

red light

B)

orange light

C)

green light

D)

yellow light

View Answer
145) Animals devoid of respiratory, excretory and circulatory organs are belong to phylum:

A)

Echinodermata

B)

Platyhelminthes

C)

Porifera

D)

Mollusca

View Answer
146) Ginger multiplies vegetatively by:

A)

tuber

B)

corm

C)

sucker

D)

rhizome

View Answer
147) In rabbit axis vertebrae is identified by :

A)

sigmoid notch

B)

odontoblast

C)

odontoid process

D)

olecranon process

View Answer
148) Trochophore larva is found in :

A)

Annelida

B)

Platyhelminthes

C)

Coelenterate

D)

Porifera

View Answer
149) 8th vertebrae of frog is :

A)

amphiplatyan

B)

procoelous

C)

amphicoelous

D)

opisthocoelous

View Answer
150) Larva form of housefly is called :

A)

wriggler

B)

pupa

C)

tumbler

D)

maggot

View Answer
151) Which of the following is absent in the segment of cockroachs leg?

A)

Fibula

B)

Coxa

C)

Tibia

D)

Femur

View Answer
152) which of the following belongs to class Insecta?

A)

Julus

B)

Silver fish

C)

Lobsters

D)

Prawn

View Answer
153) Soil formed after leaching and rich in Al and Fe is:

A)

alluvial

B)

podsol

C)

laterite

D)

none of these

View Answer
154) In micturition :

A)

urethra relaxes

B)

ureter relaxes

C)

ureter contracts

D)

urethra contracts

View Answer
155) Different species residing in different geographical areas are :

A)

allopatric

B)

parapatric

C)

sympatric

D)

none of these

View Answer
156) Stratification is most complex in :

A)

tropical forest

B)

deciduous forest

C)

savanna

D)

both [a] and [b]

View Answer
157) Sporogony of malarial parasite occur in :

A)

liver of man

B)

stomach wall of mosquito

C)

RBCs of man

D)

salivary gland of mosquito

View Answer
158) Examples of regional pollution are :

A)

acid rain

B)

smog

C)

both [a] and [b]

D)

none of the above

View Answer
159) Single membrane bound organelles are :

A)

lysosome

B)

sphaerosome

C)

glyoxysome

D)

all of these

View Answer
160) The non-membranous organelles are :

A)

centrioles

B)

ribosomes

C)

nucleolus

D)

all of these

View Answer
161) Fossilization would occur when flora and fauna are burried by:

A)

natural processes

B)

industrial processes

C)

both [a] and [b]

D)

all of the above

View Answer
162) \[N{{a}^{+}},{{K}^{+}}\] dependent ATP ase activity helps in transport of:

A)

\[{{K}^{+}}\] inward, \[N{{a}^{+}}\] outward

B)

\[{{K}^{+}}\] inward only

C)

\[N{{a}^{+}}\] inward only

D)

\[{{K}^{+}}\] outward, \[N{{a}^{+}}\] inward

View Answer
163) Which of the following mineral deficiency will cause death of stem and root tips?

A)

Mo

B)

Ca

C)

S

D)

Fe

View Answer
164) In submerged hydrophytes entry of \[C{{O}_{2}}\] is through :

A)

epidermis as dissolved \[C{{O}_{2}}\]

B)

epidermis as carbonates only

C)

epidermis as bicarbonates only

D)

both [b] and [c]

View Answer
165) Which lenses in electron microscope are used to control and focus a beam of electron?

A)

Convex lens

B)

Concave lens

C)

Electric lens

D)

Magnetic lens

View Answer
166) Damaged sieve tubes are sealed by deposition of:

A)

pectin

B)

callus

C)

suberin

D)

lignin

View Answer
167) Which of the following is a seed borne disease?

A)

Bacterial blight of rice

B)

Kharia of paddy

C)

Whiptail of Brassica

D)

All of the above

View Answer
168) Vascular cambium in roots takes its origin from:

A)

pericycle

B)

conjunctive parenchyma

C)

both [a] and [b]

D)

none of the above

View Answer
169) Atropa belladona yields medicine used for :

A)

gastric ulcers

B)

checking the eyes

C)

leprosy

D)

constipation

View Answer
170) In monocot stem, following is absent:

A)

endodermis

B)

hypodermis

C)

cortex

D)

both [a] and [b]

View Answer
171) One micrometer is a unit equivalent to :

A)

\[{{10}^{-3}}m\]

B)

\[{{10}^{-6}}m\]

C)

\[{{10}^{-9}}m\]

D)

\[{{10}^{-12}}m\]

View Answer
172) Juicy part of litchi is an outgrowth of:

A)

nucellus

B)

micropyle end

C)

chalazal end

D)

outer integument

View Answer
173) Which among the following is the only vertebrate osmoconformer?

A)

Rabbit

B)

Hagfish

C)

Bird

D)

None of these

View Answer
174) Removal of amino group of ammo acid to transform it into keto acid is :

A)

transamination

B)

ammonification

C)

deamination

D)

none of the above

View Answer
175) The heartbeat of which animal is myogenic in nature?

A)

Cockroach

B)

Leech

C)

Elephant

D)

All of the above

View Answer
176) The dental formula of rat is :

A)

\[\frac{0033}{3133}\]

B)

\[\frac{1003}{1003}\]

C)

\[\frac{2123}{2123}\]

D)

\[\frac{3131}{3121}\]

View Answer
177) Deltoid ridge is present in:

A)

femur

B)

humerus

C)

tibia

D)

fibula

View Answer
178) Connecting link between Annelida and Mollusca is :

A)

Neopilina

B)

Nautilus

C)

glochidium larva

D)

veliger larva

View Answer
179) Osphradium ofPlia globosa is :

A)

photoreceptor

B)

thermoreceptor

C)

chemoreceptor

D)

tangoreceptor

View Answer
180) Nissls granules are absent in :

A)

axon

B)

cyton

C)

dendrone

D)

both [a] and [b]

View Answer
181) How many years ago abiogenesis occurred?

A)

3.5 billion years

B)

3.0 billion years

C)

2.5 billion years

D)

3.2 billion years

View Answer
182) Organs that have different embryonic origin but perform similar functions are :

A)

homologous organs

B)

analogous organs

C)

vestigial organs

D)

atavism

View Answer
183) Fossils are studied for :

A)

tracing evolutionary history of organisms

B)

studying extinct organisms

C)

providing jobs to scientist

D)

both [a] and [b]

View Answer
184) In situ conservation of natural genetic resources can be achieved by establishing:

A)

national park

B)

wild life sanctuaries

C)

biosphere reserve

D)

all of the above

View Answer
185) Last stable community in succession which dependent on climate is:

A)

seral community

B)

climax community

C)

both [a] and [b]

D)

none of these

View Answer
186) Healing of wound in plants takes place by at activity of:

A)

ground tissue

B)

callus deposition

C)

secondary meristem

D)

permanent tissue

View Answer
187) Weed killers generally have properties much like that of:

A)

hormone

B)

carbohydrate

C)

enzymes

D)

all of these

View Answer
188) Which of the following inhibits \[{{O}_{2}}\] release light phase?

A)

PMA

B)

Zeatin

C)

DCMU

D)

None-of these

View Answer
189) Suspension of isolated thylakoids in culture medium containing \[C{{O}_{2}}\]and \[{{H}_{2}}O\] does   produce hexose due to absence of which of the following?

A)

ATP

B)

Enzyme

C)

Proteins

D)

Hill reagent

View Answer
190) During absorption of \[{{H}_{2}}O\] by roots, the \[{{H}_{2}}O\]potential of cell sap is lower than that of:

A)

solution outside

B)

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

C)

one

D)

none of the above

View Answer
191) Jacket of fern antheridium is composed of:

A)

2 cells

B)

3 cells

C)

4 cells

D)

5 cells

View Answer
192) Triticum monococcum is :

A)

diploid

B)

triploid

C)

tetraploid

D)

hexaploid

View Answer
193) Hybrid breakdown refers to the condition when offspring are physiologically inferior to the following generation?

A)

\[{{F}_{1}}\]

B)

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

C)

\[{{P}_{1}}~\]

D)

All of these

View Answer
194) Which statement is correct?

A)

Osmotic pressure of solution is greater than pure solvent

B)

Osmotic pressure of solution is lower than the pure water

C)

Osmotic pressure of solution is equal to the pure water

D)

None of the above

View Answer
195) During Ineiosis crossing over occur between which part of homologous chromosome?

A)

Sister chromatids

B)

Nonsister chromatids

C)

Genes

D)

Alleles

View Answer
196) The neuromuscular transmitter is:

A)

dopamine

B)

epinephrine

C)

norepinephrine

D)

acetylcholine

View Answer
197) Monosomy and trisomy are respectively:

A)

\[n-1,n+2\]

B)

\[2n+2,2n+1\]

C)

\[2n-1,2n+1\]

D)

\[n-2,2n+1\]

View Answer
198) In which phylum larva/young one is bilaterally symmetrical but adult one is radially symmetrical?

A)

Echinodermata

B)

Porifera

C)

Arthropoda

D)

Mollusca

View Answer
199) Tendons and ligaments are specialized types of:

A)

nervous tissue

B)

muscular tissue

C)

epithelial tissue

D)

fibrous connective tissue

View Answer
200) Diabetes mellitus takes place only when :

A)

\[\alpha \]-cells of pancreas are in excess

B)

\[\text{ }\!\!\beta\!\!\text{ }\]-cells of pancreas are in excess

C)

\[\alpha \]-cells of pancreas are in hypo

D)

\[\text{ }\!\!\beta\!\!\text{ }\]-cells of pancreas are in hypo

View Answer