AIIMS 2015 Paper

2.

Determine the height above the dashed line XX’ attained by the water stream coming out through the hole is situated at point B in the diagram given below. Given that h = 10 m, L = 2 m and d = 30 º

1. 10 m
2. 7.5 m
3. 5 m
4. 3.2 m

3.

If the magnetizing field on a ferromagnetic material is increased, its permeability
1. decreased
2. increased
3. is unaffected
4. may be increased or decreased

4.

A ball is dropped from a bridge 122.5 m above a river. After the ball has been falling for 2s, a second ball is thrown straight down after it. What must the initial velocity of the second ball be so that both hit the water at the same time?
1. 40 m/s
2. 55.5 m/s
3. 26.1 m/s
4. 9.6 m/s

5.

A body of mass 40 kg resting on rough horizontal surface is subjected to a force P which is just enough to start the motion of the body. If and the force P is continuously applied on the body, then the acceleration of the body is
1. Zero
2. 1 $m / s^{2}$
3. 2 $m / s^{2}$
4. 2.4 $m / s^{2}$

6.

The self inductance of a coil having 500 turns is 50 mH. The magnetic flux through the cross-sectional area of the coil while current through it is 8 mA is found to be
1. $4 \times 10^{- 4} W b$
2. $0.04 W b$
3. $4 μ W b$
4. 40 mWb

7.

A uniform metallic rod rotates about its perpendicular bisector with constant angular speed. If it is heated uniformly to raise its temperature slightly, then
1. its speed of rotation increases
2. its speed of rotation decreases
3. its speed of rotation remains same
4. its speed increases because its moment inertia increases

8.

A uniform disc is acted by two equal forces of magnitude R. One of them, acts tangentially to the disc, while other one is acting a the central point of the disc. The friction between disc surface and ground surface is nF. If r be the radius of the disc, then the value of n would be (in N)
1. 0
2. 1.2
3. 2.0
4. 3.2

9.

While keeping area of cross-section of a solenoid same, the number of turns and length of solenoid one both doubled. The self inductance of the coil will be
1. halved
2. doubled
3. $\frac{1}{4}$ times the original value
4. unaffected

10.

Consider the circular loop having current I and with central point O. The magnetic field at the central point O is

1. $\frac{2 μ_{0} i}{3 π R}$ acting downward
2. $\frac{5 μ_{0} i}{12 R}$ acting downward
3. $\frac{6 μ_{0} i}{11 R}$ acting downward
4. $\frac{3 μ_{0} i}{7 R}$ acting downward

11.

The Boolean expression , where P and Q are the inputs of the logic circuit, represents
1. AND gate
2. NAND gate
3. NOT gate
4. OR gate

12.

Consider the diagram shown below.

A voltmeter of resistance 150 Ωis connected across A and B. The potential drop across B and C measured by voltmeter is
1. 33 V
2. 26 V
3. 31 V
4. 28 V

13.

Two spherical nuclei have mass numbers 216 and 64 with their radii R₁ and R₂ respectively. The ratio, $R_1 \over R_2$ is equal to
1. 3:2
2. 1:3
3. 1:2
4. 2:3

14.

A massless rod S having length 2l has equal point masses attached of its tow ends as shown in the figure. The rod is rotating about an axis passing through its centre and making angle α with the axis. The magnitude of change of momentum of rod i.e. equals

1. $2 m I^{3} ω^{2} \sin θ \cdot \cos θ$
2. $m I^{2} ω^{2} \sin 2 θ$
3. $m I^{2} \sin 2 θ$
4. $m^{1 / 2} I^{1 / 2} ω \sin θ \cdot \cos θ$

15.

A semiconductor having electron and hole mobilities respectively.
If its intrinsic carrier density is , then what will be the value of hole concentration P for which the conductivity will be minimum at a given temperature?
1. $n i \sqrt{\frac{μ_{n}}{μ_{p}}}$
2. $n h \sqrt{\frac{μ_{n}}{μ_{p}}}$
3. $n i \sqrt{\frac{μ_{p}}{μ_{n}}}$
4. $n h \sqrt{\frac{μ_{p}}{μ_{n}}}$

16.

In terms of basic units of mass (M), length (L), time (T) and charge (Q), the dimensions of magnetic permeability of vacuum would be
1. $[M L Q^{- 2}]$
2. $[L T^{- 1} Q^{- 1}]$
3. $[M L^{2} T^{- 1} Q^{- 2}]$
4. $[L T Q^{- 1}]$

17.

The black body spectrum of an object $O_1$ is such that its radiant intensity (i.e. intensity per unit wavelength interval) is maximum at a wavelength of $200~\text{nm}$. Another object $O_2$ has a radiant intensity maximum at a wavelength of $600~\text{nm}$. The ratio of power emitted per unit area by the source $O_1$ to that of the source $O_2$ is:
1. $1:81$
2. $1:9$
3. $9:1$
4. $81:1$

18.

A beam of light of wavelength 400 nm and power 1.55 mW is directed at the cathode of a photoelectric cell. If only 10% of the incident photons effectively produce photoelectron then find current due to these electrons.
(given, )
1. $5 μ A$
2. $40 μ A$
3. $50 μ A$
4. $114 μ A$

19.

The molar specific heat of a gas as given from the kinetic theory is . If it is not specified whether it is , one could conclude that the molecules of the gas
1. are definitely monoatomic
2. are definitely rigid diatomic
3. are definitely non-rigid diatomic
4. can be monoatomic or rigid diatomic

20.

The length of a metal wire is when the tension in it is and is when the tension is . The natural length of the wire is
1. $\frac{l_{1} + l_{2}}{2}$
2. $\sqrt{l_{1} l_{2}}$
3. $\frac{l_{2} T_{2} - l_{2} T_{1}}{T_{2} - T_{1}}$
4. $\frac{l_{1} T_{2} + l_{2} T_{1}}{T_{1} - T_{2}}$

21.

The velocity velocity vector v and displacement vector x of a particle executing SHM are related as
with the initial condition at x = 0. The velocity v, when displacement is x, is
1. $v = \sqrt{v_{0}^{2} + ω^{2} x^{2}}$
2. $v = \sqrt{v_{0}^{2} - ω^{2} x^{2}}$
3. $v = \sqrt[3]{v_{0}^{2} + ω^{2} x^{2}}$
4. $v = v_{0} - (ω^{3} x^{3} e^{x^{3}})^{1 / 3}$

22.

Consider the diagram shown below in which two masses of m and 2m are placed on a fixed triangular wedge.

The coefficient of friction between block A and the wedge is 2/3, while that for block B and the wedge is 1/3.
If the whole system is released from rest, then acceleration of block A is
1. Zero
2. $\frac{2 m^{2}}{3} g$
3. $\frac{4 m^{2}}{3}$ g
4. $\frac{m^{2}}{\sqrt{2}} g$

23.

In the arrangement shown in figure, the current through 5 Ω resistor is

1. 2 A
2. zero
3. $\frac{12}{7}$ A
4. 1 A

24.

A hemispherical bowl of radius r is set rotating about its axis of symmetry in vertical. A small block kept in the bowl rotates with the bowl without slipping on its surface. If the surface of the bowl is smooth and the angle made by the radius through the block with the vertical is θ, then find the angular speed at which the ball is rotating.
1. $ω = \sqrt{r g \sin θ}$
2. $\omega= \sqrt{\frac{g}{rcos\theta }}$
3. $ω = \sqrt{\frac{g r}{\cos θ}}$
4. $ω = \sqrt{\frac{g r}{\tan θ}}$

25.

The phase difference between the flux linked with a ball rotating in a uniform magnetic field and induced emf produced in it is
$1 . π / 2$

$2 . π / 3$

$3 . - π / 6$

$4 . π$

26.

A condenser of 250 is connected in parallel to a coil of inductance of 0.16 mH, while its effective resistance is 20 Ω. Determine the resonant frequency.
1. $9 \times 10^{4} H z$
2. $16 \times 10^{7} H z$
3. $8 \times 10^{5} H z$
4. $9 \times 10^{3} H z$

28.

For Bragg’s diffraction by a crystal to occur, then the X-ray of wavelength and interatomic distance d must be
1. $λ$ is greater than 2d
2. $λ$ equals 2d
3. $λ$ is smaller than or equal to 2d
4. $λ$ is smaller than 2d

29.

A wire having mass m and length l can freely slide on a pair of parallel smooth horizontal rails placed in vertical magnetic field B. The rails are connected by a capacitor of capacitance C. The electric resistance of the rails and the wire as shown in the figure. Then, the acceleration of the wire can be given as

1. $a = \frac{C^{2} B^{2} l - F}{m}$
2. $a = \frac{F}{m + C B l}$
3. $a = \frac{F C^{2} B^{2} l}{m}$
4. $a = \frac{F}{m + C^{2} B^{2} l}$

30. Consider the situation shown in figure A spring of spring constant $400~\text{N/m}$ is attached at one end to a wedge fixed rigidly with the horizontal part. A $40~\text{g}$ mass is released form rest while situated at a height $5~\text{cm}$ the curved track. The maximum deformation in the spring is nearly equal to:

1. $9.8~\text{m}$
2. $9.8~\text{cm}$
3. $0.98~\text{m}$
4. $0.009~\text{m}$

31.

A block having mass m collides with an another stationary block having mass 2 m. The lighter block comes to rest after collision. If the velocity of first block is v, then the value of coefficient of restitution will must be
1. 0.5
2. 0.4
3. 0.6
4. 0.8

32.

A uniform sphere of mass 500 g rolls without slipping on a plane surface so that its centre moves at a speed of 0.02 m/s.
The total kinetic energy of rolling sphere would be (in J)
1. $1.4 \times 10^{- 4} J$
2. $0.75 \times 10^{- 3} J$
3. $5.75 \times 10^{- 3} J$
4. $4.9 \times 10^{- 5} J$

33.

The force on a particle as the function of displacement x(in x-direction) is given by
F = 10 + 0.5 x
The work done corresponding to displacement of particle from x = 0 to x = 2 unit is
1. 25 J
2. 29 J
3. 21 J
4. 18 J

34.

The reading of a spring balance corresponds to 100 N while situated at the north pole and a body is kept on it. The weight record on the same scale if it is shifted to the equator, is
1. 99.66 N
2. 110 N
3. 97.66 N
4. 106 N

35.

If the intensity is increased by a factor of 20; then how many decibels in the sound level increased?
1. 18
2. 13
3. 9
4. 7

36.

On the same path, the source and observer are moving such a ways that the distance between these two increases with the time. The speeds of source and observer are same and equal to with respect to the ground while no wind is blowing. The apparent frequency received by observer is 1950 Hz then the original frequency must be (the speed of sound in present medium is 340 m/s)
1. 2068 Hz
2. 2100 Hz
3. 1903 Hz
4. 602 Hz

37.

Consider the ray diagram for the refraction given below. The maximum value of angle θ for which the light suffers total internal reflection at the vertical surface, is

1. $\cos^{- 1} (\frac{3}{4})$
2. $\sin^{- 1} (\frac{3}{4})$
3. $\tan^{- 1} (\frac{4}{3})$
4. $\cos^{- 1} (\frac{4}{3})$

38.

The near point and far point of a person are 40 cm and 250 cm respectively. Determine the power of the lens he/she should use while reading a book kept at distance 25 cm from the eye.
1. 2.5 D
2. 5.0 D
3. 1.5 D
4. 3.5 D

39.

The dimensional formula for electric flux is
1. [ ML³I^-1T^-3 ]
2. [ M²L²I^-1T^-2 ]
3. [ ML³I¹T^-3 ]
4. [ ML^-3I^-1T^-3 ]

40.

An electron of mass , initially at rest, moves through a certain distance in a uniform electric field in time . A proton of mass also initially at rest, takes time to move through an equal distance in this uniform electric field. Neglecting the effect of gravity, the ratio , is nearly equal to
1. 1
2. $\sqrt{\frac{M_{p}}{M_{e}}}$
3 $\sqrt{\frac{M_{e}}{M_{p}}}$
4. 1836

41.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): In an elastic collision between two bodies, the relative speed of the bodies after collision is equal to the relative speed before the collision.
Reason (R):In an elastic collision, the linear momentum of the system is conserved.

1. If both Assertion and Reason are true and Reason is correct expolanation of Assertion.

2. If both Assertion and Reason are true but Reason isnot the correct expolanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

42.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): If there is no external torque on a body about its centre of mass, then the velocity of the centre of mass remains constant.
Reason (R):The linear momentum of an isolated system remains constant.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

43.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): An astronaut in an orbiting space station above the earth experience weightlessness.
Reason (R):An object moving around the earth under the influence of earth’s gravitational force is in a state of ‘free fall’.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

44.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): The stream of water flowing at high speed from a garden hose, pipe tends to spread like a fountain when held vertically up but tends to narrow down when held vertically down.
Reason (R):In any steady flow of an incompressible fluid, the volume flow rate of the fluid remains constant.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

45.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): The total translational kinetic energy of all the molecules of a given mass of an ideal gas is 1.5 times the product of its pressure and volume.
Reason (R):The molecules of gas collide with each other and the velocities of the molecules change due to the collision.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

46.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): The relation between u, v and f for the spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature.
Reason (R): The laws of reflection are strictly valid for plane surfaces but not for large spherical surfaces.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

47.

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):

Assertion (A):	In a meter bridge experiment null point for an unknown resistance is put inside an enclosure maintained at a higher temperature. The null point can be obtained at the same point as before by increasing the value of the standard resistance.
Reason (R):	Resistance of metal increases with an increase in temperature.

In the light of the above statements choose the correct answer from the options given below:

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.	(A) is true but (R) is false.
4.	Both (A) and (R) are false.

48.

Assertion (A): Forces acting between proton-proton (f_pp), proton-neutron (f_pn) and neutron-neutron (f_nn) are such that
f_pp< f_pn<f_nn
Reason (R): Electrostatic force of repulsion between two protons reduces net nuclear forces between them.

1. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3. If Assertion is true but Reason is false.
4. If both Assertion and Reason are false.

49.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): The magnetic moment

of an electron revolving around the nucleus decreases with increasing principle quantum number (n)
Reason (R): The magnetic moment

of an electron revolving around the nucleus is inversely proportional to the principle quantum number (n)

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

50.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): A particle of mass M at rest decay into two particles of masses

, having non-zero velocities will have ratio of de-Broglie wavelengths unity.
Reason (R): Here we cannot apply conservation of linear momentum.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

51.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): To increase resolving power of a telescope, the aperture (α) of the objective should be large.
Reason (R): Resolving power of the telescope is given by

.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3. If Assertion is true but Reason is false.
4. If both Assertion and Reason are false.

52.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): If the frequency of the applied AC is doubled, then the power factor of a series R-L circuit decreases.
Reason (R):Power factor of series R-L circuit is given be

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

53.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Above Curie temperature, a ferromagnetic material becomes paramagnetic.
Reason (R): When a magnetic material is heated to very high temperature, it loses its magnetic properties.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

54. Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):

Assertion (A):	A charge moving in a circular orbit can produce electromagnetic wave.
Reason (R):	The source of electromagnetic wave should be in accelerated motion.

In the light of the above statements choose the correct answer from the options given below:

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.	(A) is true but (R) is false.
4.	Both (A) and (R) are false.

55.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): The bar magnet falling vertically along the axis of the horizontal coil will be having acceleration less than g.

Reason (R):Clockwise current induced in the coil.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

56.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): The effective resistance of the network between P and Q is

Reason (R):Symmetry can be applied to the network with respect to centre.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

57.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): A spherical equipotential surface is not possible for a point charge.
Reason (R): A spherical equipotential surface is possible inside a spherical capacitor.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

58.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): A wire bent into an irregular shape wit the points P and Q fixed. If a current I passed through the wire, then the area enclosed by the irregular portion of the wire increases.

Reason (R): Opposite current carrying wire repel each other.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

59.

Assertion (A): A charge q is placed on a height b/2 above the centre of a square of side b. The flux associated with the square is independent of side length.
Reason (R): Gauss’s law is independent of size of the Gaussian surface.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

60.

Direction: Each of these questions contains two statements. Assertion and Reason Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): Audio signal of frequency 10 KHz cannot be transmitted over long distance without modulation.
Reason (R):Length of the antenna required

, should have practical value.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion.

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

3. If Assertion is true but Reason is false.

4. If both Assertion and Reason are false.

61.

Following table shows the successive molar ionisation energy of five elements A to E.

Which two elements are most likely to be in the same group of the periodic table?
1. C and D
2. D and E
3. B and D
4. B and E

62.

Consider the following arrangements of the octahedral complex ion .

Which of the following statements is false?
1. II and III are cis and trans-isomers respectively.
2. III and IV are trans and cis-isomers respectively
3. I and II are enantiomers
4. All are identical

64.

Two aldopentoses A and B give the same osazone derivative. A is oxidised to an optically active aldoric acid by dilute metric acid. Ruff degradation of B gave a tetrose which was similarly oxidised to an optically active aldaric acid. Assign the structure of A and B from the following list.

1. A=I, B=IV
2. A=IV, B=I
3. A=III, B=II
4. A=II, B=III

65.

is a complex formed during the brown ring test for ion. In this complex,
1. there are three unpaired electrons so that its magnetic moment is 3.87 BM
2. NO transfer its electron to $F e^{2 +}$ so that iron as Fe(l) and NO as NO⁺
3. the colour is because of charge transfer
4. All the above statements are correct

66.

An organic compound X having molecular mass 60 is found to contain C = 20%, H = 6.67% and N = 46.67%, while rest is oxygen. On heating it gives ammonia along with a solid residue. The solid residue gives violet colour with alkaline copper sulphate solution. The compound X is
$1 . C H_{3} C H_{2} C O N H_{2} 2 . C H_{3} N C O 3 . C H_{3} C O N H_{2} 4 . (N H_{2})_{2} C O$

68.

(potassium superoxide) is used in oxygen cylinder in space and submarines because of it
1. Absorbs $C O^{2}$
2. produces ozone
3. eliminates moisture
4. absorb $C O^{2}$ and increases $O^{2}$ content

69.

The order of reactivity of halides towards

mechanism is

1. benzyl > allyl > 1 ^o > 2 ^o > 3 ^o > Me

2. Me > 1 ^o > 2 ^o > 3 ^o > allyl > benzyl

3. 3 ^o > 2 ^o > 1 ^o > Me > allyl > benzyl

4. benzyl > allyl > 3 ^o > 2 ^o > 1 ^o > Me

70.

Arrange the given set of compounds in order of increasing boiling points.
I. 1-chloropropane
II. Iso-propyl chloride
III. 1-chlorobutane
1. II < III < I
2. I < II < III
3. II < I < III
4. III < I < II

71.

The factor of values is important in metallurgy. The values for the following reactions at 800 ºC are given as

Thefor the reaction.
will be
1. -731 kJ
2. -787 kJ
3. -534 kJ
4. -554 kJ

72.

The shapes of SF₄ and XeF₂ , respectively, are:
1. Trigonal bipyramidal and Trigonal bipyramidal
2. See-saw and linear
3. T-shape and Linear
4. Square planar and Trigonal bipyramidal

73.

CH₃ – CH₂ – CH = CH₂ + HBr

X and Y respectively are
$1 . B r C H_{2} - C H_{2} - C H = C H_{2} a n d C 2 H_{5} - C H B r - C H_{3}$

$2 . C_{2} H_{2} - C H_{2} - C H_{2} B r a n d B r - C H_{2} - C H_{2} - C H_{2} - C H = C H_{2}$

$3 . C_{2} H_{2} - C H_{2} - C H_{2} B r a n d C_{2} H_{5} - C H B r - C H_{3}$

$4 . C_{2} H_{5} C H B r - C H_{3} a n d C_{2} H_{2} - C H_{2} - C H_{2} B r$

74.

‘α’ moles of PCl₅ are heated in a closed container to equilibriate
at a pressure of p atm. If x moles of PCl₅ dissociate at equilibrium, then
1. $\frac{x}{a} = {(\frac{K_{p}}{p})}^{1 / 2}$
2. $\frac{x}{a} = \frac{K_{p}}{K_{p} + p}$
3. $\frac{x}{a} = {(\frac{K_{p}}{K_{p} + p})}^{1 / 2}$
4. $\frac{x}{a} = {(\frac{K_{p} + p}{K_{p}})}^{1 / 2}$

75.

Among the metals Fe, Zn, Pb, Ag and Pt, which do not give a metal nitrate on treatment with concentrated HNO₃?
1. Fe and Pt
2. Fe and Zn
3. Fe,Ag and Pt
4. Pg,Ag and Pt

76.

versus T plot in the Ellingham’s diagram slopes downward for the reaction
1. $C + \frac{1}{2} O_{2} \to C O$
2. $C + \frac{1}{2} O_{2} \to C O_{2}$
3. $2 A g + \frac{1}{2} O_{2} \to A g_{2} O$
4. $M g + \frac{1}{2} O_{2} \to M g O$

77.

When a substance ‘A’ reacts with water, it produces a combustible gas ‘B’ and a solution of substance ‘C’ in water. While another substance ‘D’ reacts with solution of ‘C’ to produce the same gas B on reaction with dilute at room temperature. ‘A’ imparts a deep golden yellow colour to a smokeless flame on Bunsen burner. Identify ‘A’, ‘B’, ‘C’ and ‘D’ respectively are
1. K,H₂,KOH,Al
2. Na,H₂,NaOH,Zn
3. CaC₂,C₂H₂,Ca(OH)₂,Fe
4. Ca,H₂,Ca(OH)₂,Sn

78.

The volume of a colloidal particle, as compared to volume of solute particle in a true solution could be
1. $\frac{V_{c}}{V_{s}} = 10^{- 3}$
2. $\frac{V_{c}}{V_{s}} = 10^{3}$
3. $\frac{V_{c}}{V_{s}} = 10$
4. $\frac{V_{c}}{V_{s}} = 10^{22}$

79.

Point out the correct decreasing order of $pK_b$ values of following amines
$C_2H_5NH_2,C_6H_5NHCH_3,(C_2H_5)_2NH $ and $C_6H_5NH_2 $
1. (C₂H₅)₂NH > C₂H₅NH₂ > C₆H₅NHCH₃ > C₆H₅NH₂
2. (C₂H₅)₂NH > C₆H₅NHCH₃ > C₆H₅NH₂ > C₂H₅NH₂
3. C₆H₅NH₂> C₆H₅NHCH₃ > C₂H₅NH₂ > (C₂H₅)₂NH
4. C₂H₅NH₂ > (C₂H₅)₂NH > C₆H₅NHCH₃ > C₆H₅NH₂

80.

During the decomposition of N₂O₅ , a certain time interval is 2.4×10^-4 mol L^-1 min^-1.
$\mathrm{N}_2 \mathrm{O}_5 \longrightarrow 2 \mathrm{NO}_2+\frac{1}{2} \mathrm{O}_2$
The rate of formation of NO₂ and O₂ in mol L^-1 min^-1will be:
1. 2.3×10^-5 and 1.2×10^-5 respectively
2. 3.8×10^-4and 0.6×10^-4 respectively
3. 2.4×10^-4 and 1.5×10^-4 respectively
4. 4.8×10^-4 and 1.2×10^-4 respectively

81.

Consider the reaction equilibrium

The favourable conditions for forward reaction are
1. low temperature,high pressure and excess if ice
2. low temperature,low pressure and excess if ice
3. high temperature,low pressure and excess if ice
4. high temperature,high pressure and excess if ice

82.

The EMF of a cell, based on the given reaction, will be:
Ni(s) + 2Ag⁺(0.002 M) → Ni²⁺(0.160 M) + 2Ag(s)
(Give that, $E_{cell}^{o} $= 1.05 V)

1.	0.73 V	2.	0.91 V
3.	0.62 V	4.	0.34 V

83.

Point out the true statement.
1. Photochemical smog occurs in a day time while the classical smog occur in the morning hours
2. Classical smog has an oxidizing character whereas the photochemical smog is reducing character.
3. During formation of smog, the level of ozone in the atmosphere goes down
4. Classical smog is good for health but not photochemical smog

84.

One mole of magnesium in the vapour state absorbed 1200 energy. If the first and second ionisation energies of Mg are 750 and 1450 respectively, the final composition of the mixture is
1. 86% Mg⁺+14% Mg²⁺
2. 69% Mg⁺+31% Mg²⁺
3. 14% Mg⁺+86% Mg²⁺
4. 31% Mg⁺+69% Mg²⁺

85.

In the following reaction

Identify A and B.
1. $C H_{3} C H_{3} = N N H_{2} a n d C_{2} H_{5} O N a$
2. $C H_{3} C H_{2} - N H_{2} a n d C_{2} H_{5} O N a$
3. $C H_{3} - N H - N H - C H_{3} a n d C_{2} H_{5} O H$
4. $C H_{3} C H_{2} N H_{2} a n d C_{2} H_{5} O H$

86.

If the distance between ions in sodium chloride crystal is y pm, the length of the edge of the unit cell is
1. 4y pm
2. y/4
3. y/2 pm
4. 2y pm

88.

Carbon and oxygen forms two compounds. Carbon content in one of them is 42.9% while in the other is 27.3%. The given data is in support with
1. law of definite proportions
2. law of reciprocal proportions
3. law of multiple proportions
4. law of conservation of mass

89.

Consider the following reaction,

How many structures of X is possible?
1. 4
2. 5
3. 6
4. 3

90.

100 mL of liquid A was mixed with 25 mL of liquid B to give a non-ideal solution of A-B. The volume of this mixture will be:
1. 75 mL
2. Exact 125 mL
3. Between 75 mL and 125 mL
4. Close to 125 mL but will not exceed 125 mL

92.

Salts of metals X, Y and Z are electrolyzed under identical conditions using same quantity of electricity. It was observed that 4.2 g of X, 5.4 g of Y and 19.2 g of Z were deposited at respective cathode. If the atomic weights of X, Y, Z are 7, 27 and 64 respectively, then their ratio of valencies is
1. 1 : 2 : 3
2. 1 : 3 : 2
3. 2 : 3 : 1
4. 3 : 2 : 2

93.

Aniline is reacted with bromine water, and the resulting product is treated with an aqueous solution of sodium nitrite in the presence of dilute HCl. The compound so formed is converted into a tetrafluoroborate diazonium salt, which is subsequently heated to dryness. The final product is:
1. 2,4,6-Tribromofluorobenzene
2. 1,3,5-Tribromofluorobenzene
3. p-Bromoaniline
4. o-Bromofluorobenzene

94.

Three spheres of the first layer and three of the second layer enclose a site at the centre in a closest packing arrangement, this site is called
1. Interstitial void
2. tetrahedral void
3. octahedral void
4. cubic void

98.

The degeneracy of hydrogen atom that has energy equal to is
(where = Rydberg constant)
1. 6
2. 8
3. 5
4. 9

99.

Consider the three statements given below:

I:	Bond length in $N_{2}^{+}$ is 0.02 A^o greater than that in N₂.
II:	Bond length in NO⁺ is 0.09 A^o less than that in NO.
III:	$O_{2}^{2-}$ has a shorter bond length than O₂.

True statements among the sbove are:
1. I and II
2. II and III
3. I, II and III
4. I and III

100.

In the following reaction, B is

1. salicylic acid
2. benzoic acid
3. phenol
4. 2, 4, 6-trobromoaniline

101.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Both Frenkel and Schottky defects are stoichiometric defects.
Reason (R): Both defects change the density of the crystalline solid.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

102.

Assertion (A):	In any transition series, the magnetic moment of the M²⁺ ion first increases and then decreases.
Reason (R):	In any transition series, the number of unpaired electrons first increases and then decreases.

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.	(A) is true but (R) is false.
4.	Both (A) and (R) are false.

103.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Benzaldehyde is less reactive in comparison to ethanol towards nucleorphilic attack.
Reason (R):All the carbon atoms of bebzaldehyde are

-hybridised.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

104.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Osmotic pressure of 0.1 N urea solution is less than that of 0.1 M NaCl solution.
Reason (R):Osmotic pressure is not a colligative property.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

105.

Assertion (A):	Gabriel's phthalimide reaction can be used to prepare aryl and alkyl amines.
Reason (R):	Aryl halides have the same reactivity as alkyl halides towards nucleophilic substitution reactions.

1.	Both (A) and (R) are True and (R) is the correct explanation of (A).
2.	Both (A) and (R) are True but (R) is not the correct explanation of (A).
3.	(A) is True but (R) is False.
4.	Both (A) and (R) are False.

106.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Iron is protected from corrosion by connecting magnesium metal with it.
Reason (R):Iron acts as cathode and magnesium as anode which gradually disappears.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

107.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Elementary phosphorus exists in three principal allotropic forms, i.e. white (or yellow), red (or violet) and black.
Reason (R):Of the three forms, white phosphorus is the most important and most reactive.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

108.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Chlorine reacts more rapidly with

in comparison to

.
Reason (R):D – Cl bond is stronger in comparison to H – Cl bond.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

109.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): A solution of sucrose in water is dextrorotatory while on hydrolysis in presence of little hydrochloric acid, it becomes laevorotatory.
Reason (R):Sucrose on hydrolysis gives unequal amounts of glucose and fructose as a result of which change in sign of rotation is observed.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

110.

Assertion (A):	tert-Butyl methyl ether on treatment with Hl at 100 ºC gives a mixture of Methyl iodide and tert-Butyl alcohol.
Reason (R):	This reaction occurs via S_N2 mechanism.

1.	Both (A) and (R) are True and (R) is the correct explanation of (A).
2.	Both (A) and (R) are True but (R) is not the correct explanation of (A).
3.	(A) is True but (R) is False.
4.	Both (A) and (R) are False.

111.

Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A):	In comparison to ethyl chloride, it is not easy to carry out nucleophilic substitution on vinyl chloride.
Reason (R):	Vinyl group is an electron donating.

1.	Both (A) and (R) are true and (R) is the correct explanation of (A).
2.	Both (A) and (R) are true but (R) is not the correct explanation of (A).
3.	(A) is true but (R) is false.
4.	Both (A) and (R) are false.

112.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Ranitidine is used to treat byperacidity and brompheniramine is used to treat hypersensitivity.
Reason (R):Both of these drugs are antihistamines.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

113.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Graphite is a good conductor of heat and electricity.
Reason (R):Graphite has all the electrons firmly held together in C - C

-bonds.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

114.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): Sodium reacts with oxygen to form

but potassium reacts with oxygen to form

.
Reason (R):Potassium is more reactive metal than sodium.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

115.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): A mixture of o-nitrophenol and p-nitrophenol can be separated by steam distillation.
Reason (R):p-nitrophenol is steam volatile whereas o-nitrophenol is not steam volatile.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

116.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Friedel-Crafts reaction of benzene with n-propyl chloride on heating produce isopropyl benzene.
Reason (R): Benzene undergoes electrophilic substitution easily.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

117.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Presence of green plant is essential for greenhouse effect.
Reason (R):Chlorophyll of green plants causes greenhouse effect.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

118.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Neoprene can be further hardened by heating with the sulphur.
Reason (R):It contains allylic double bond which help in introducing sulphur bridges between different polymer chains.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

119.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A):

is the only hydride of group-16 which is liquid at ordinary temperature.
Reason (R):In ice, each oxygen atom is surrounded by two convalent bonds and tow hydrogen bonding.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

120.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Carbonate and hydroxide ores are concentrated by froth floatation process.
Reason (R):In froth floatation process, mineral oil is used due to it preferentially wets the gangue particles.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

121.

The antibiotics have no effect on viruses because
1. viruses show metabolism of their own
2. viruses are too small in size for antibiotics to act upon them
3. viruses show no metabolism of their own
4. viruses produce a thick covering and encyst themselves as endospores

122.

Schizocoelomates and enterocoelomates are
1. acoelomates
2. invertebrates
3. true coelomates
4. echinoderms only

123.

Cestoda are distinguished from other flatworms by the absence of
1. digestive system
2. nervous system
3. excretory system
4. reproductive system

124.

Which one of the following is referred as ‘living fossils’?
1. Sarcoptes
2. Daphnia
3. Limunus
4. Balanus

125.

Match the following columns.

1. A-1,B-2,C-3,D-4
2. A-4,B-3,C-2,D-1
3. A-4,B-2,C-3,D-1
4. A-3,B-4,C-1,D-2

126.

The small projections present on the surface of pineapple fruit represent
1. persistent styles
2. persistent stamens
3. persistent calyx
4. persiatent bracts

127.

Pith cavity occurs in the stem of
1. Helianthus
2. Zea mays
3. Cucurbita
4. Dracaena

128.

Pollination in Rafflesia is occurred by
1. carrion flies
2. elephant
3. bat
4. crow

129.

Which of the following statement is true?
1. Vessels are unicellular and with narrow lumen
2. Vessels are multicellular and with wide lumen
3. Tracheids are multicellular and with wide lumen
4. Tracheids are multicellular and with narrow lumen

130.

Haversian canal in the bone of mammals are connected by small blood vessel canal called
1. Schlemm's canal
2. Volkmann's canal
3. Portal capillaries
4. Sinuses

131.

If a biochemical analysis of mitochondria has to be done, the best procedure would be
1. select cells whioch have a large number of mitochondria
2. plasmolyse the cell and filter out the mixture and take the debris
3. grind the cells and filter out the mixture and take the debris
4. subject the cell to cell fractionation(centrifuge) and obtain mitochondria

132.

Choose the correct statement.
1. All proteins have 20 amino acid
2. Both ends of a protein are similar
3. All proteins are soluble
4. Proteins are formed by peptide bonds

133.

Match the following column I with column II.

	Column I		Column II
A	Agrostology	1	Earth
B	Smallest Flowering Plant	2	Genetic Engineering
C	Tectonic	3	Migration
D	Ecesis	4	Wolffia
E	Euphanix	5	Grass studies

1. A-5 B-4 C-1 D-3 E-2
2. A-1 B-2 C-3 D-4 E-5
3. A-2 B-3 C-1 D-5 E-4
4. A-5 B-4 C-3 D-2 E-1

134.

What is true of urea biosynthesis?
1. Uric acid is starting point
2. Urea is synthesized in lysosomes
3. Urea cycle enzymes are located inside mitochondria
4. Urea is synthesized in kidney

135.

In old age, stiffness of joints is due to the
1. hardening of bones
2. inefficiency of muscles
3. decrease in synovial flucid
4. enlargement of bones

136.

Node of Ranvier occurs where
1. nerve is covered with myelin sheath
2. neurolemma is discontinuous
3. nurolemma and myelin sheath are discontinuous
4. myelin sheath is diccontinuous

137.

Correct hormonal sequence in the case of menstruation as
1. oestrogen, FSH, progesterone
2. oestrogen, progesterone, FSH
3. FSH, progesterone, oestrogen
4. FSH, oestrogen, progesterone

138.

In blue-green algae, photosystem-II contains important pigment concerned with photolysis of water. It is a
1. Phycocyamin
2. cytochrome-c
3. chlorophyll-b
4. $β$ -carotene

139.

Identify the process taking place in this experiment

1. Ringing experiment for translocation of sap
2. Demonstration of root process
3. Eosin test to demonstrate ascent of sap
4. Demonstration of tranpiration

141.

Refrigerated fruits maintain flavour and taste for the longer period due to
1. non-availability of $O_{2}$
2. the presence of excess of $C O_{2}$
3. the presence of excess humidity
4. slower rate of respiration

142.

The biological clock measures the length at each night by the
1. relative amount of red absorbing and far-red absorbing phytochrome present at dawn
2. amount of far-red absorbing phytochrome at dusk
3. relative amount of red absorbing and far-red absorbing phytochrome at mid day
4. rate at which are kind of phytochrome is covered to the other

143.

In the homeostatic control of blood sugar level, which organs function as modulator and effector respectively?
1. Liver and islet of Langerhans
2. Hypothalamus and liver
3. Hypothalamus and islet of Langerhans
4. Islet of Langerhans and hypothalamus

144.

A colourblind man marry with a daughter of colorblind father, the generation will be
1. there will be no daughter colourblind
2. all sons will be colourblind
3. all daughters will be colourblind
4. half sons will be colourblind

145.

Which one of the following organisms is correctly matched with its three characteristics?
1. Pea- C₃-pathway, endospermic seed, vexillary aestivation
2. Tomato-twisted aestivation, axile placentation, berry
3. Onion-bulb, imbricant aestivation, axile placentation
4. Maize- C₃-pathway, closed vascular bundle, scutellum

146.

The domestic sewage in large cities
1. has a high BOD as it contains both aerobic and bacteria
2. is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)
3. when treated in STPs does not really require the aeration step as the sewage contains adequate oxygen
4. has very high amount of suspended solids and dissolved salts

147.

The first clinical gene therapy was given for treating
1. diabetes mellitus
2. chickenpox
3. rheumatoid arthritis
4. Adenosine deaminase deficiency

148.

Which one of the following human organ is called the ‘graveyard of RBCs?
1. Gall bladder
2. Kidney
3. Spleen
4. Liver

149.

Biolistic (gene gun) is suitable for
1. disarming pathogen vectors
2. transformation of plant cel
3. constructing recombinant DNA by joining with vectors
4. DNA fingerprinting

150.

Which one of the following generally act as antagonists to gibberellins?
1. Zeatin
2. Ethylene
3. ABA
4. IAA

151.

Select the correct statement about biodiversity.
1. The desert area of Rarajsthan and Gujrat have a very high level of desert animals.
2. Large scale planting of Bt cotton has no adverse effect on biodiversity.
4. Western ghats have a very high degree of species richness and endemism.
4. Conservation of biodiversity is just a fad pursued by the developed countries.

152.

Which one of the following structure is an organelle within an organelle?
1. Ribosome
2. Peroxisome
3. ER
4. Mesosome

153.

Which of the following is the relatively most accurate method for dating fossils?
1. Potassium-argon method
2. Uranium-lead method
3. Electron-spin resonance method
4. Radio-carbon method

154.

The 24 hour (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone
1. calcitonin
2. prolactin
3. adrenaline
4. melatonin

155.

In Kranz anatomy, the bundle sheath cells have
1. thin walls, many intercellular space and no chloroplast
2. thick0 walls, no intercellular space and large number of chloroplast
3. thin walls, no intercellular space and several chloroplast
4. thick walls, many intercellular space and few chloroplast

156.

Which one of the following is essential for photolysis of water?
1. Manganese
2. Zinc
3. Copper
4. Boron

157.

In a plant, red fruit (R) dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTT genotype is crossed with a plant that is rrtt. Then
1. 25% will be tall with red fruit
2. 50% will be tall with red fruit
3. 75% will be tall with red fruit
4. All of the offspring will be tall with red fruit

158.

Which one of the following pairs is not correctly matched?
1. Vitamin-B₁₂-Pernicious anemia
2. Vitamin-B₆-Loss of appetite
3. Vitamin-B₁-Beriberi
4. Vitamin-B₂-Pellagra

159.

What would happen, if in a gene encoding a polypeptide of 50 amino acids, 25^th codon (UAU) is mutated of UAA?
1. A polypeptide of 49 amino acids will be formed
2. A polypeptide of 25 amino acids will be formed
3. A polypeptide of 24 amino acids will be formed
4. Two polypeptide of 24 and 25 amino acids will be formed

160.

Short-lived immunity acquired from mother to foetus placenta or through mother’s milk to the infant is categorized as
1. celllular immunity
2. innate non-specific immunity
3. active immunity
4. passive immunity

161.

Direction:Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Coacervates are believed to be the precursor of life.
Reason (R): Coacervates were self-duplicating aggregates of proteins surrounded by lipid molecules.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

162.

Direction:Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Genecology is the study of genetic compositions and changes is relation to the origin of decades, ecotypes, new sps., etc.
Reason (R): Autecology deals with the study of a group of organisms.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

163.

Direction:Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): UV-radiation causes photo dissociation of enzyme into

and O. Thus causing damage to the stratospheric ozone layer.
Reason (R): Ozone hole is resulting in global warming and climate change.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

164.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): A morphology-based approach to taxonomy is called alpha taxonomy and it is old-fashioned.
Reason (R): A multidisciplinary approach to taxonomy is called omega taxonomy is favoured in recent years. As it excludes morphological features.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

165.

Direction:Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): A network of food chains existing together in an ecosystem is known as food web.
Reason (R): An animal like kite cannot be a part of food web.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

166.

Direction:Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Smaller the organism, higher is the rate of metabolism per gram weight.
Reason (R): The heart rate of six months old baby is much higher than that of an old person.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

167.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Female gametophyte in angiosperm is eight nucleate.
Reason (R): Double fertilization occurs in angiosperms.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

168.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Photo modulation of flowering is a phyochrome regulated process.
Reason (R): Active form of phytochrome directly induces floral induction in shoot bud.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

169.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Cyclic pathway of photosynthesis first appeared in some eubacteria sps.
Reason (R): started accumulating in the atmospheres after the cyclic pathway of photosynthesis evolve.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

170.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): Under the condition of high light intensity and limited

supply, photorespiration has a useful role in protecting the plants from photo-oxidative damage.
Reason (R): If enough

is not available to utilize light energy for carboxylation to proceed, the excess energy may not cause damage to plants.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

171.

Direction:Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): A cell membrane shows fluid behavior.
Reason (R): A membrane is a mosaic or composite of diverse lipids and proteins.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

172.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): A coenzyme or metal ion that is very tightly bound to enzyme protein called prosthetic group.
Reason (R): A complete, catalytically active enzyme together with its bound prosthetic group is called Apo enzyme.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

173.

Direction:Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): G_1-phase is also called anaphase, as during this phase the cell stores ATP for cell division.
Reason (R): Cell produces structural and functional proteins. Cell’s metabolic rate is high and is controlled by the enzymes.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

174.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Secondary growth in dicot roots occur with the help of vascular cambium and phellogen.
Reason (R): Vascular cambium is formed from conjunctive parenchyma and part of pericycle.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

175.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Most minerals must enter the root by active absorption into the cytoplasm of epidermal cells.
Reason (R): This transportation needs energy in the form of ATP. Some ions also move into the epidermal cells passively.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

176.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): The chemical potential of pure water at normal temperature and pressure is zero.
Reason (R): In solution, value of water potential is always positive.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

177.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
Assertion (A): Chlorine is absorbed as

ions. Its precise role is not well known. However, with,

it help in determining the solute concentration and anion-cation balance is cells.
Reason (R): Chlorine plays an important role in photosynthesis and takes part in the water-splitting reaction, thus releasing

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

178.

Direction: Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): In alcoholic drink, the alcohol is converted into glucose in liver.
Reason (R): Liver cells are able to produce glucose from alcohol by back fermentation.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

179.

Direction:Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Liver is the largest gland of the body. The hepatic lobules are the structural and functional units of liver containing hepatic cells arranged in the form of cord.
Reason (R): Each lobule of the liver is covered by a thin connective tissue sheath called the Glisson’s capsule. The bile is secreted by hepatic cells.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

180.

Direction:Each of these questions contains two statements. Assertion (A) and Reason (R). Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.

Assertion (A): Tidal volume is the volume of air inspired or expired with the normal breath.
Reason (R): Adult person contains 500 mL expired or inspired volumes of air with each normal breath.

1. If both Assertion and Reason are true and Reason is correct explanation of Assertion

2. If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

3. If Assertion is true but Reason is false

4. If both Asertion and Reason are false

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I:	Bond length in \(N_{2}^{+}\) is 0.02 \(\)A^o greater than that in N₂.
II:	Bond length in NO⁺ is 0.09 A^o less than that in NO.
III:	\(O_{2}^{2-}\) has a shorter bond length than O₂.