AIIMS Previous Paper - 2013 | 198 Questions MCQ Test AIIMS Mock Tests & Previous Year Papers NEET

QUESTION: 1

To obtain a p-type germanium semiconductor, it must be doped with

A.
arsenic
B.
antimony
C.
Indium
D.
phosphorous

Solution: Indium is trivalent impurity so p type semiconductor will be obtained.

QUESTION: 2

Sound waves do not.show the phenomenon of

A.
interference
B.
diffraction
C.
refraction
D.
polarisation

Solution: Sound wave is longtidudinal wave but polarisation is the characteristics of transverse wave.

QUESTION: 3

The magnifying power of a compound microscope is high If

A.
both me objective and the eyepiece has short focal lengths
B.
both the objectve and the eyepiece have long focal lengths
C.
the objective has a Short focal length and the eyepiece has a long focal length
D.
the objective has a long focal length and the eyepiece has a short focal length

Solution:

QUESTION: 4

1 curie is

A.
1 dps
B.
3 x 10¹⁰dps
C.
106 cos
D.
3.7 x 10¹⁰dps

Solution: The curie is a unit of ionizing radiation (radioactivity), symbolized Ci and equal to 3.7 x 10^10 disintegrations or nuclear transformations per second. This is approximately the amount of radioactivity emitted by one gram (1 g) of radium-226.

QUESTION: 5

To double the covering range of a TV transmitter tower, its height should be made

A.
2 times
B.
4 times
C.
√2 times
D.
8 times

Solution: Range is directly proportion to √height. so the double the range height becomes four times.

QUESTION: 6

An alternatmg voltage V = V₀ sin ωτ is applied across a circuit. As result I = I₀sin(ωτ)- π/2) flows ill it. The power consumed per cycle is

A.
zero
B.
0.5 V₀I₀
C.
0.707 V₀I₀
D.
1.414 V₀I₀

Solution:

QUESTION: 7

A slab consist of two portions of different materials of same thickness and having the conductivities K₁ and K₂. The equivalent thermal conductivity of the slab is

A.
K₁ + K₂
B.
C.
D.

Solution:

QUESTION: 8

A prism is made up 0f material of refractive index √3. The angle of prism is A. If the angle of minimum deviation is equal to the angle of the prism, then the value of A is

A.
30º
B.
45º
C.
60º
D.
75º

Solution:

QUESTION: 9

The following table is a truth table for

A.
NAND gate
B.
NOR gate
C.
XOR gate
D.
AND gate

Solution: X = not (A.B ) so it's ' not and gate I.e. Nand gate'

QUESTION: 10

The half-life of a radioactive substance is 10 day. This means that

A.
the substance completely disintegrates in 20 days.
B.
the substance completely disintegrates in 40 days.
C.
1/8 part at the mass of the substance will be left intact at the end of 40 days
D.
7/8 part of the mass of the substance disintegrates in 30 days.

Solution:

QUESTION: 11

A source and an observer are moving towards each other with a speed equal to υ/2, where υ is the speed of sound. Thesource is emitting sound of frequency n.The frequency heard by one observer will be

A.
Zero
B.
n
C.
n/3
D.
3n

Solution: Frequency heard by observer n'=(v+velocity of observer/v-velocity of source) n, n'=(v+v/2/v-v/2)n, so n'=3n.

QUESTION: 12

Velocity of sound waves in air is 330 m/s. For a particular sound in air a path difference of 40 cm is equivalent to phase difference of 1.6π. The frequency of the wave is

A.
165 Hz
B.
150 Hz
C.
660 Hz
D.
330 Hz

Solution: Option C 660Hz is correct answer... pi=2×π×mu/velocity × X 1.6π=2×π×mu/330×0.4. (40 cm convert to m) calculate this u get the answer. So mu i.e,frequency of wave=660 Hz.

QUESTION: 13

The power factor of the circuit shown in figure is

A.
0.2
B.
0.4
C.
0.8
D.
0.6

Solution:

QUESTION: 14

A particle is executing linear simple harmonic motion amplitude A. What fraction of the total energy is kinetic when the displacement is half the amplitude.

A.
1/4
B.
1/2√2
C.
1/2
D.
3/4

Solution:

QUESTION: 15

Two simple harmonic motions are represented by y₁ = 4sin(πt– π/2) and y₂ = 3cos(4πt). The resultant amplitude is

A.
/
B.
1
C.
5
D.
2+√3

Solution:

QUESTION: 16

Which one of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity decreases with temperature and hs high melting point?

A.
metallic bonding
B.
van der Waal's bonding
C.
Ionic bonding
D.
covalent bonding

Solution:

QUESTION: 17

When 20 J of work was done on gas. 40 J of heat energy was released If the initial energy of the gas was 70 J what is the final internal energy’?

A.
50 J
B.
-150 J
C.
90 J
D.
110 J

Solution:

QUESTION: 18

The value of g at a particular point is 9.8 ms^-2 Suppose the earth suddenly shrinks uniformly to half it resent size without losing any mass . The value of g at the same point (distance of the point from the centre of earth does not change) Will now be

A.
9.8 ms^-2
B.
4.9 ms-²
C.
19.6 ms^-2
D.
39.2 ms-²

Solution:

QUESTION: 19

A spherical ball is dropped in a long column of viscous liquid. Which of the following graphs represent the variation of (i) gravitational force with time (ii) viscous force with time (iii) net force acting on the ball with time?

A.
Q.R.P
B.
R.Q.P
C.
P.Q.R
D.
R.P.Q

Solution:

QUESTION: 20

The Young’s modulus of a wire of length L the radius r is y newton per square meter lf the length is reduced to L/2 and radius L/2 Its Young’s modulus will be

A.
y/2
B.
y
C.
2y
D.
4y

Solution: Because young's modulus depends on nature of material it doesn't depend on temperature.

QUESTION: 21

A boy of mass m stands on one end of a wooden plank of length L. and muss M The plank is floating on water, If the boy walks from one end of the plank to the other end at a constant speed theresulting displacement of the plank is given by

A.
mL/M
B.
ML/m
C.
mL/M+m
D.
mL/M-m

Solution:

QUESTION: 22

A sphere of solid material of relative density 9 has a concentric spherical cavity and Just sinks in water. If the radius of sphere be R. then the radius of cavity (r) will be related to R as

A.
B.
C.
D.

Solution:

QUESTION: 23

Average value of kinetic energy and potential energy over entire time period in a SHM is

A.
B.
C.
D.

Solution:

QUESTION: 24

In which of the state- shown in figure, is potential energy of a electric dipole maximum?

A.
B.
C.
D.

Solution:

QUESTION: 25

A car is travelling with a linear velocity u on a Circular road of radius r. If It is increasing its speed at the rate of a m/s² then the resultant acceleration will be

A.
B.
C.
D.

Solution:

QUESTION: 26

A uniform magnetic field parallel to the plane of paper, exsisted in space initially directed from left to right. When a bar of soft Iron is placed in the field parallel to it, the lines of force passing through It will be represented by figure.

A.
B.
C.
D.

Solution:

QUESTION: 27

A body starts from rest and moves with a uniform acceleration. The ratio of the distance covered in the n th second to the distance covered in nsecond

A.
B.
C.
D.

Solution:

QUESTION: 28

Wind blowing from South at 10 m/s but to a cyclist it appears to be blowing from the East at 10 m/s The cyclist has a velocity

A.
10i – 10j
B.
10i + 10j
C.
– 10i + 10j
D.
– 10i – 10j

Solution:

QUESTION: 29

The ratio of radius of two bubbles is 2: 1. What is the ratio excess pressure inside them?

A.
4 : 1
B.
1 : 4
C.
2 : 1
D.
1 : 2

Solution:

QUESTION: 30

The current. i and voltage V graphs for a given metallic wire at two different temperatures T₁ and T₂ are shown In the figure. It is concluded that

A.
T₁ > T₂
B.
T₁ < T₂
C.
T₁ = T₂
D.
T₁ = 2T₂

Solution:

QUESTION: 31

The internal resistance of primary cell is 4Ω. It generates a current of 0.2 A in an external resistance of 21Ω. The rate at which chemical energy is consumed is providing the current is

A.
0.42 J/s
B.
0.24 J/s
C.
5 J/s
D.
1 J/s

Solution:

QUESTION: 32

There are four point charges +q, -q, +q and -q are placed at the corners A, B, C, and D respectively of a square of side a.The potential energy of the system is 1/4πε₀times

A.
B.
C.
D.

Solution:

QUESTION: 33

The potential difference across the 3 Ω resistor shown in figure is

A.
zero
B.
1 V
C.
3.5 V
D.
7V

Solution:

QUESTION: 34

There are N cells in the circuit of figure. The emf and internal resistance of each cell is E and r respectively. The points A and B in the circuit divide the circuit into n and (N – n) cells. The current in the circuit is

A.
E/r
B.
nE/r
C.
NE/Nr
D.
Zero

Solution:

QUESTION: 35

The earth’s magnetic field at a certain place has a horizontal component of 0.3 G and total strength 0.5 G. Find angle of dip in tan^-1

A.
B.
C.
D.

Solution:

QUESTION: 36

Two spherical conductors A and B of radii a and b (b> a) are placed concentrically in air. The two arc connected by a copper wire as shown in figure. The equivalent capacitance of the system is

A.
B.
4πε₀(a + b)
C.
4πε₀b
D.
4πε₀a

Solution:

QUESTION: 37

The magnetic flux linked with the coil varies with time as φ = 3t²4t + 9. The magnitude of the induced emf of 2s is

A.
9 V
B.
16 V
C.
3 V
D.
4 V

Solution:

QUESTION: 38

The force F is given by expression F = A cos(Bx) Csin(Dt), where x is the displacement and t is the time. Then dimension of D/B are same as that of

A.
velocity [LT^-1]
B.
angular velocity[T^-1]
C.
angular momentum[ML₂T^-1]
D.
velocity gradient[T^-1]

Solution:

QUESTION: 39

The thermo cmf of a thermocouple varies with the temperature θ of the hot junction as E = aθ + bθ² voltwhere the ratio (a/b) is 700°C. If the cold junction is kept at O°C, then the neutral temperature is

A.
700°C
B.
350°C
C.
1400°C
D.
no neutral temperature is possible

Solution:

QUESTION: 40

The wire shown is figure tames a current of 32 A. If r = 3.14 cm. the magnetic field at point P will be

A.
1.6 x 10^-4 T
B.
3.2 x 10^-4 T
C.
4.8 x 10^-4 T
D.
6.4 x 10^-4 T

Solution:

QUESTION: 41

Carbon, silicon, and germanium have four valence electrons each. These are characterized by valence and conduction bands. Seperated by energy band gap respectively equal to (Eg)_e, (Eg)_si and (Eg)_Ge.
Which of the following statement is true ?

A.
(Eg)_si < (Eg)_Ge < (Eg)_c
B.
(Eg)_si < (Eg)_Ge < (Eg)_si
C.
(Eg)_c > (Eg)_Si > (Eg)_Ge
D.
(Eg)_c = (Eg)_Si < (Eg)_Ge

Solution:

QUESTION: 42

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : In an elastic collision between two bodies. the energy of each body is conserved
Reason : The total energy of an isolated system is conserved.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 43

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : A body can he at rest even when it is under the action of any number of external forces
Reason : Vector sum of all the external forces is zero

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 44

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : In a non-uniform circular motion, the acceleration of the particle is equal to sum of the tangential acceleration and the centripetal acceleration.
Reason : The two acceleration are perpendicular to each other.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 45

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : A body can have acceleration even if its velocity is zero at that instant of time.
Reason : The body will be momentarily at rest when it reserves its direction of motion.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 46

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : Work done in moving a charge between any two points in a uniform electric field is independent of the path followed by the charge. between these points.
Reason : Electrostatic forces are non conservative

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 47

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : In a transistor amplifier. the output voltage is always nut of phase with the input voltage.
Reason : The emitter base junction is reverse biased and the base collector Junction is forward biased

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 48

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : In case of pure rolling. the force of friction becomes zero.
Reason : The speed at the point of contact is zero.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 49

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : Heat from the sun reaches the earth by convection.
Reason : Air can be heated only by convection.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 50

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : A wire carrying an electric current has no electric field around it.
Reason : Rate of flow of electron’s in one direction is equal to the rate of flow of protons in opposite direction.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 51

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : If an electron and proton enter a perpendicular magnetic field with equal momentum, then radius of curve for electron is more than that of proton.
Reason : Electron has less mass than proton.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 52

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : The ratio C_p/C_vis more for helium gas than for hydrogen gas.
Reason : Atomic mass of helium is more than that of hydrogen.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 53

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : Our ears cannot distinguish two notes, one produced by a violin and other by a guitar. if they have exactly same intensity and same frequency.
Reason : When a musical instrument is played, it produces a fundamental note which is accompanied by a number of overtones called harmonics.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 54

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion :The de-Broglie wavelength equation has significance for any microscopic and submicroscopic particles.
Reason : de-Broglie wavelength is inversely proportional to the mass of the object its velocity is constant

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 55

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : In stationary wave, there is no transfer of energy.
Reason : The ratio of kinetic energy to potential energy is independent of the position.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 56

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : In a radioactive disintegration, an electron is emitted by the nucleus.
Reason : Electron are present inside the nucleus.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 57

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : A normal human eye can clearly see all the objects beyond a certain minimum distance.
Reason : The human eye has the capacity to suitably adjust the focal length of its lens to a certain extent.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 58

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : A satellite moving in a circular orbit around the earth has a total energy E₀, then its potential energy is -E₀
Reason : Potential energy of the body at a Point In a gravitational field of orbit is –GMm/R

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 59

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : If a liquid in a vessel is stirred and left to itself. the motion disappear after few minutes.
Reason : The moving liquid exerts equal and opposite force.

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 60

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : At the centre of earth u body has centre of mass, but no centre of gravity.
Reason : This is because g = 0 at the centre of earth

A.
If both the assertion and reason are true and reason explains the assertion
B.
If both the assertion and reason are true but reason does not explain the assertion
C.
If assertion is true but reason is false
D.
If assertion is false but reason is true

Solution:

QUESTION: 61

Aspirin acts as an analgesic because it

A.
inhibits the synthesis of prostaglandins which stimulates inflammation of the tissue
B.
prevents the release of HCL in the stomach
C.
Prevents the interaction of histamine with its receptor
D.
inhibit activities of enzymes

Solution:

QUESTION: 62

Starch is a mixture of two components, a water soluble component amylase (15-20%) and a water insoluble component amylopectin (80-85%). The aqueous solution, of amylase gives a blue colour with iodine solution due to the formation of

A.
amylose iodide
B.
amylose iodate
C.
inclusion complex
D.
amylase tetraiodide complex

Solution:

QUESTION: 63

What reagent is used in the Hinsberg test of amines?

A.
(CH₃CO)₂O and pyridine
B.
C₆H₃SO₂CI in aq NaOh
C.
NaNO₂ in aq H₂ SO₄
D.
CH₃l(excess) followed by AgOH

Solution:

QUESTION: 64

Aldol condensation between which of the following two compounds followed by dehydration gives methyl vinyl ketone?

A.
Formaldehyde and acetone
B.
Formaldehyde and acetaldehyde
C.
Two molecules of acetone
D.
Two molecules of acetaldehyde

Solution:

QUESTION: 65

Grignard reagents and organolithium compounds on addition to dry ice separately, followed by hydrolysis gives

A.
ketones and carboxylic acids respectively
B.
carboxylic acids and ketones respectively
C.
only carboxylic acids
D.
onty ketones

Solution:

ONLY CARBOXYL ACIDS

GRIGNARD REAGENT react with dry ice (solid CO2) followed by aqueous acid work-up to give carboxylic acids.

CO2 can be thought of as a being a dicarbonyl compound : O=C=O

Note that the carboxylic acid contains one extra C atom compared to the original halide from which the Grignard reagent was prepared.

RMgX and RLi show same type of reeaction with dry ice.

QUESTION: 66

The strongest acid among the following is

A.
o-methoxy phenol
B.
p-methoxy phenol
C.
m-methoxy phenol
D.
phenol

Solution:

QUESTION: 67

On commercial scale phenol is obtained from chlorobenzene. The chlorobenzene needed for the purpose is prepared by Raschig’s process. Which one of the following is Raschig’s process?

A.
B.
C.
D.

Solution:

QUESTION: 68

How many mL of 0.125 M Cr³⁺ must be reacted with 12.00 mL of 0.200M MnO₄^– if the redox products are CrO₇^2–and Mn²⁺?

A.
8 mL
B.
16 mL
C.
24 mL
D.
32 mL

Solution:

QUESTION: 69

At 300 K, 36 g of glucose present per litre in its solution has an osmotic pressure of 4.98 bar. If the osmotic pressure of solution is 1.52 bar at the same temperature, what would be its concentration?

A.
11gL^-1
B.
22gL^-1
C.
36gL^-1
D.
42gL^-1

Solution:

QUESTION: 70

The composition of a sample of wustite is Fe0.93O. What percentage of the iron is present in the form of Fe (III)?

A.
5%
B.
7.08%
C.
15.05%
D.
23.6%

Solution:

QUESTION: 71

When acidified K₂Cr₂O₇ solution is added to Sn²⁺ salts, then Sn²⁺changes to

A.
Sn
B.
Sn^3-
C.
Sn⁴+
D.
Sn⁺

Solution:

QUESTION: 72

What would be the expected product of the reaction of propyne with Br₂/H₂O if the mechanism of this reaction is analogous to that of propene?

A.
2-brompropenol
B.
Bromoacetone
C.
2-boromo-b-propanol
D.
Bromoprophenol

Solution:

QUESTION: 73

Which of the following carbocation would have the greatest stability?

A.
B.
C.
D.

Solution:

QUESTION: 74

Electron affinity is positive, when

A.
O changes into O^–
B.
O changes into O^2-
C.
O changes into O⁺
D.
election affinity is always negative

Solution: 'B' is the answer becz. electron affinity means to accept electron and 'O' on accepting electron forms O-2.

QUESTION: 75

Which one of the following pairs represents stereoisomerism ?

A.
Chain isomerism and rotational isomerism
B.
Structural isomerism and geometrical isomerism
C.
Linkage isomerism and geometrical isomerism
D.
Optical isomerism and geometrical isomerism

Solution:

QUESTION: 76

Using the data given below find out the strongest reducing agent

^E°Cr₂O₄ /Cr³⁺ = 1.33 V, ^E°Cl₂ / Cl^- = 1.36 V,
^E°MnO₄^- /Mn²⁺ = 1.51 V, ^E°Cr³⁺ /Cr = -0.74 V

A.
Cl^-
B.
Mn²⁺
C.
Cr
D.
Cr³⁺

Solution:

QUESTION: 77

EMF of Daniell cell was found using different concentrations of Zn²⁺ ion and Cu²⁺ ion. A graph was then plotted between Ecell and log [Zn²⁺]/[Cu²⁺] found to be linear with intercept on Ecell axis equal to 1.10 V. Ecell for Zn/Zn²⁺ (0.1M)|| Cu²⁺ (00.1M)| Cu will be

A.
1.10 V
B.
1.0705 V
C.
0.93 V
D.
0.078 V

Solution:

QUESTION: 78

Which of the following process is not responsible for the presence of electric charge on the sol particles?

A.
Electron capture by sot particles
B.
Adsorption of one species from solution
C.
Formation of Helmholtz electrical double layer
D.
Absorption of ionic species horn solution

Solution:

QUESTION: 79

In the metallurgy of aluminium

A.
Al3+ is oxidised to Al (s)
B.
graphite anode is oxidised to carbon monoxide and carbon dioxide
C.
oxidation state of oxygen changes in the reaction at anode
D.
oxidation state of oxygen changes in the overall reaction involved in the process

Solution:

QUESTION: 80

In the preparation of HNO₃ we get NO gas by catalytic oxidation of ammonia. The moles of NO produced by the oxidation of two moles of NH₃ will be

A.
2
B.
3
C.
4
D.
6

Solution:

QUESTION: 81

The thermal decomposition of HCOOFI is a foot order reaction with a rate constant of 2.4 x 10^-3s^-1 at certain temperature. Calculate how long will it take for three fourths of initial quantity of HCOOII decompose?

A.
578 s
B.
225 s
C.
436 s
D.
587s

Solution:

QUESTION: 82

Rate constant k of a reaction varies, with temperature according to the equation log k = constant – Ea/2.303R x 1/T where Eais the energy of activation for the reaction When a graph is plotted for log k vs 1/T a straight line with a slope -6670 k is obtained. The activation energy for this reaction will be (R = 8.314JK-1mol^-1)

A.
122.65 kJmol^-1
B.
127.71 kJmol^-1
C.
142.34 kJmol^-1
D.
150.00 kJmol^-1

Solution:

QUESTION: 83

Which of the following statements is not correct about order of a reaction?

A.
The order of a reaction can be a fractional number
B.
Order of a reaction is exeperimentally determined quantity
C.
The order of a reaction is always equal to the sum of the stoichiometric coefficients of reactants In the balanced chemical equation for a reaction
D.
The order of a reaction is the sum of the powers of molar concentrations of the reactants in the rate law expression

Solution:

QUESTION: 84

Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?

A.
H₂ (excess)/Pt
B.
LiAIH in ether
C.
Fe anc HCl
D.
Sn and HCl

Solution:

QUESTION: 85

Which is the correct statement about birth control pills?

A.
Contain estrogen only
B.
Contain progesterone only
C.
Contain a mixture of estrogen and progesterone derivatives
D.
Progesterone enhances ovulation

Solution:

QUESTION: 86

is a polymer having monomer units

A.
B.
C.
D.

Solution:

QUESTION: 87

Glycogen is a branched chain polymer of α-D-glucose units in which chain is formed by C1 – C4 glycosidic linkage whereas branching occurs by the formation of C1– C6 glycosidic linkage. Structure of glycogen is similar to

A.
amylose
B.
anylopectin
C.
cellulose
D.
glucose

Solution:

QUESTION: 88

Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be

A.
primary structure of proteins
B.
secondary structure of proteins
C.
tertiary structure of proteins
D.
quaternary structure of proteins

Solution:

QUESTION: 89

The anticodon transfer RNA for the messenger RNA codon GCA is

A.
TGA
B.
GUT
C.
AGT
D.
CGU

Solution: A pair with T in both dna and rnaG pair with C in dna and in rna G pair with Tso acc to this answer will be AGT.

QUESTION: 90

Which one of the following statements is wrong?

A.
Fuel obtained from plastic waste has high octane rating
B.
H₂O₂ with suitable catayst is now used in bleaching of paper
C.
Now-a-days ethanol is produced by one step oxidation of ethane in presence of ionic catalyst in aqueous medium
D.
The growth of fish gets inhibited, if the concentration of dissolved oxygen of water in over 6 ppm

Solution:

QUESTION: 91

The enthalpies of all elements in their standard states are

A.
unity
B.
zero
C.
<0
D.
different for each element

Solution: The enthalpy at its standard states means at the equilibrium and it is zero in equilibrium. ....

QUESTION: 92

2 L of an ideal gas at a pressure of 10 atm expands isothermally into a vacuum until its total volume is 10 L. How much work is done in the expansion?

A.
8 L-atm
B.
16 1 L-atm
C.
24.0 L-atm
D.
None of these

Solution:

QUESTION: 93

Which one of the following methods is neither meant (or the synthesis nor for the separation of amines?

A.

Wurtz reaction
B.
Cunius reaction
C.
Hofmann method
D.
Hinsberg method

Solution:

QUESTION: 94

The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is

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

Solution:

QUESTION: 95

How many σ and π bonds are in SO₄^2- ion?

A.
4.2
B.
3.2
C.
4.3
D.
3.3

Solution: Ya..it's option A..coz two oxygen atoms form double bonds with sulphur...and the other two oxygen atoms forms single bond with a -ve charge on them.

QUESTION: 96

The shape of the orbital with the value of l = 2m = 0 is

A.
spherical
B.
double dumb-bell
C.
trigonal planar
D.
square planar

Solution:

QUESTION: 97

For the reaction, 1 g mole of CaCO₃is enclosed in 5 L container CaCO₃(s) → CaO(s) CO₂(g)K_p = 1.16 at 1073 K then per cent dissociation of CaCO₃ is

A.
zero
B.
6.58%
C.
65%
D.
100%

Solution:

QUESTION: 98

Ionic product of Ni(OH)₂ is 2.0 x 10^-15 Molar solubility of Ni(OH)₂ in 0.10 M NaOH will be

A.
1.0 x 10^-13M
B.
2.0 x 10^-13M
C.
4.0 x 10^-13M
D.
8.0 x 10^-13M

Solution:

QUESTION: 99

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : Neoprene can be further hardened by heating in presence of sulphur.
Reason : Neoprene contains allylic double bonds which help in introducing sulphur bridges between different polymer chains.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 100

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : Deoxyribose, C₅H₁₀O₄is not a carbohydrate.
Reason : Carbohydrates are hydrates of carbon so compounds which follow Cx(H₂O)yformula are carbohydrates.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 101

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : Aniline does not undergo Friedel-Crafts reaction.
Reason : Friedel-Crafts is an electrophilic substitution reaction.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 102

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : In comparison to ethyl chloride it is difficult to carry out nucleophilic substitution on vinyl chloride.
Reason : Vinyl group is electron donating.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 103

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : Phenol forms 2,4, 6-tribromophenol on treatment with Br₂ in carbon disulphide at 273 K
Reason : Bromine polarises in carbon disulphide

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 104

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : On cooling, the brown colour of nitrogen dioxide disappears.
Reason : On cooling, NO₂ undergoes dimerisation resulting in the pairing of odd electrons of NO₂

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 105

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : Na⁺ and Al³⁺ are isoelectronic but the magnitude of ionic radius of Al³⁺ is less than that of Na⁺
Reason : The magnitude of effective nuclear charge of the outer shell electrons in Al^3- is greater than that in Na⁺

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 106

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : CpCv = R, for an ideal gas.
Reason : R is the work done when temperature of one mole of an ideal gas is increased by 1.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 107

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.
Assertion : On addition of NH₄Cl to NH₂OH solution. pH decreases but remains greater than 7.
Reason : Addition of NH+ ion decreases ionisation of NH₄OH thus [OH] .1 is decreased. hence pH decreases.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 108

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : The mobility of sodium ion is lower than that of potassium ion.
Reason : The ionic mobilities depend on the effective radius of the ion.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 109

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : On adding zinc pieces to aqueous FeCl₃ solution, colour changes from deep yellow to light green.
Reason : Aqueous FeCl₃is acidic and on adding Zn, nascent hydrogen is produced which reduces deep yellow FeCl3solution to light green FeCl₃ solution.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 110

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : p-chlorobenzoic acid is stronger acid than benzoic acid.
Reason : Chlorine has electron donating resonance (+ R) effect.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 111

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : A free radical is paramagnetic species.
Reason : A free radical is formed in homolytic fission of covalent bond.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 112

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : Addition of one equivalent of HCl to 1,3-butadiene at 80°C gives3-chloro-1-butene as major product.
Reason : 3-chlorod-butene is a kinetically controlled product.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 113

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion Semiconductors are solids with conductivities in the intermediaterange from 10^-6 – 10⁴ ohm^-1m^-1
Reason : Intermediate conductivity in semiconductor is due to partially filled valence band.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 114

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : When methanol is added to water boiling point of water increases.
Reason : When a volatile solute is added to a volatile solvent, elevation in boilingpoint is observed.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 115

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : The Daniell cell becomes dead after some time.
Reason : Oxidation potential of zinc anode decreases and that of copper increases

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 116

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : The highest oxidation state of Os is + 8.
Reason : Osmium is a 5 d-block element:

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 117

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion T: oxic metal ions are removed by the chelating ligands.
Reason : Chelate complexes lead to be more stable.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 118

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses.

Assertion : Formic acid reduces. ‘Tollen’s reagent.
Reason : Compounds containing —CHO group reduce ‘Pollen’s reagent.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 119

Speciation of sympatric Species is due to

A.
geographic isolation
B.
reproductive isolation
C.
isolation/separation
D.
migration

Solution:

QUESTION: 120

The application of synthetic plant hormone like IAA, IBA and NAA are best described as

A.
prevent early fruit fall before harvesting and ts used to produce parthenocarpic fruit
B.
prevent early fruit tall only
C.
to produce both seed less fruits and fruits with seeds
D.
to produce larger fruit

Solution:

QUESTION: 121

Flame cells and Malpighian tubules are the analogous organ in

A.
insects and arthropods respectively
B.
arthropods and echinodermates respectively
C.
helminths and arthropods with other insect respectively
D.
arthropods and other insect with helminths respectively

Solution:

In arthropods, excretion takes place through malpighian tubules. In Platyhelminthes animals, specialised cells called flame cells are responsible for osmoregulation and excretion.

QUESTION: 122

Trochlear, trigeminal and glossopharyngeal nerve are respectively

A.
IX, V and IV
B.
IV, V and X
C.
V, IV and IX
D.
IV, V and IX

Solution:

QUESTION: 123

Who had proposed theory of cohesion and adhesion forces?

A.
Dixon and Jolly (1894)
B.
Dixon and Benson (1885)
C.
Dixon and Jolly (1950)
D.
Sir Jagdish Chandra Bose (1850)

Solution:

QUESTION: 124

Which one of the following useful organisms is not a part in production of curd/yoghurt?

A.
S. thermophiluS
B.
Lactobacillus bulgaricus
C.
Acetobactor aceti
D.
Streptococcus lactis

Solution:

QUESTION: 125

The drugs, which do not develop physiological dependence is

A.
sedative and tranqualisers
B.
stimulational cocaine
C.
opiates
D.
hallucinogens

Solution:

QUESTION: 126

Organogenesis or morphogenesis in tissue culture is controlled/regulated by phytohormones the credit of this important discovery goes to

A.
Skoog and Miller (1957)
B.
Guha and Maheswan (1964)
C.
Calvin and Benson (1894)
D.
Halperin and Wetherell (1964)

Solution:

QUESTION: 127

A man whose father is a colourblind, marry a woman, who is a daughter of colourblind mother. The offspring of this couple will be

A.
all daughter and sons are colourblind
B.
50% colourblind and 50% normal son
C.
carrier normal daughter and colourblind sons
D.
colourblind sons and normal daughter

Solution: Women is a daughter of colour blind mother it means she must be carrier for trait. also a man is colour-blind because it cannot suppress the particular X-linked gene .so, when we cross we can get that there are carrier normal daughter and colour blind sons.

QUESTION: 128

In a child of 15 years age, plasma calcium level is diagnosed below optimum level. Which organ is malfunctioning?

A.
Thyroid gland
B.
Liver
C.
Parathyroid
D.
Posterior lobe of pituitary

Solution: Parathyroid gland is responsible for regulation of blood calcium level.Parathormone increases blood calcium level whereas calcitonin decreases the level.

QUESTION: 129

Which one of the following best describe polygenic inheritance?

A.
ABO blood group in human and flower colour of Mtrabilis Jalapa
B.
Hair pigment of mouse and tongue roliing humans
C.
Human eye colour and sickle-cell anaemia
D.
Human height and colour of skin and eyes

Solution: The ans is (D)Bcoz (A) is describes incomplete dominance.(B) describes law of dominance.(C) describes pleiotropy i.e. single gene controls 2 or more phenotypic traits (D)describes polygenic inheritance i.e. interaction between 2 or more genes located on the same chromosomes or different chromosomes...So the ans is (D)

QUESTION: 130

Go through the following table comparing the effect of sympathetic and parasympathetic nervous system. Which one is matched correctly?

A.
a
B.
b
C.
c
D.
d

Solution:

QUESTION: 131

Which one of the following set meaning isnot different?

A.
Cistron —-Triplet
B.
DNA profile —-DNA type
C.
Gene pool —-Genome
D.
Gene —-Codon

Solution:

QUESTION: 132

How macula lutea and corpus luteum are related?

A.
Contribute in maintain pregnancy
B.
Both are a source of hormones
C.
Both are charaterised by their yellow colour
D.
Both are found in human ovaries

Solution:

QUESTION: 133

Which one as used/regarded as biofertiliser ?

A.
A association between pteridophytes and cyanobacteria Anabaena
B.
A association between gymnosperms and Nostoc
C.
A association between legume and Rnizobium
D.
All of the above

Solution:

QUESTION: 134

The common characteristic showing by mushroom smut and rust

A.
is characterised by presence of basidiocarps
B.
is characterised by presence of ascocarps
C.
all are pathogen
D.
all are saprophytic in nature

Solution:

QUESTION: 135

A reptilian looks like house lizard is sitting on plant with its tail coiled around twig in your garden. Can you identify the animal?

A.
Garden lizard (Calotes) showing camouflage
B.
Chamaeleon showing protective colouration
C.
Varanus showing mimicry
D.
Hemidactylus showing sexual dimorphism

Solution:

QUESTION: 136

Different varieties of Indian mangoes are most popular in Western and some other European countries. The varieties with different flavour, colour, sugar and fleshy content is due to

A.
genetic diversity
B.
species diversity
C.
induced mutation
D.
hybridisation

Solution: Genetic diversity and arround 1,000 species are found in India in genetic variation.

QUESTION: 137

hnRNA undergoes two additional process. Out of them in one process an unusual nucleotide (methyl GPT) is added to the 5’end of molecule. What would you called this?

A.
Tailing
B.
Splicing
C.
Termination
D.
Capping

Solution:

QUESTION: 138

Which one exhibits the character of a protozoan during one phase of its life cycle and character of fungi in another phase of its life cycle?

A.
Water moulds
B.
Psilophytes
C.
Slime moulds
D.
Diatoms

Solution:

QUESTION: 139

Wernickes syndrome is generally common in alcoholic person; which is characterised by less mental activity and dual vision. It is caused by the deficiency of

A.
riboflavin
B.
thiamine
C.
pyridoxine
D.
retinol

Solution:

QUESTION: 140

Which one of the most common embryo sac in flowering plant?

A.
Monosporic, 8 nucleated and 7 celled
B.
Monosporic, 7 celled and 7 nucleated
C.
Bisporic, 8 nucleated and 7 celled
D.
Bisporic. 8 nucleated and 7 celled

Solution:

QUESTION: 141

Which type of immunoglobulin is/areabundantly found in foetus?

A.
IgE
B.
IgG
C.
IgM
D.
IgD

Solution: During pregnancy the IgG is supplied to the foetus through the placenta.

QUESTION: 142

The mandatory combination responsible for assembly of microtubules are

A.
Na⁺ and Ca²⁺
B.
Mg²⁺ and Ca²⁺
C.
Cl^– and Ca^2-
D.
Na⁺ and K^–

Solution:

QUESTION: 143

Which one plant movement is unidirectional?

A.
Phototaxis
B.
Chemotaxis
C.
Both (a) and (b)
D.
Thigmotrophism

Solution:

QUESTION: 144

The exchange of segments of two non-homologous pair of chromosomes is termed as

A.
crossing over
B.
linkage
C.
transformation
D.
transiocation

Solution:

QUESTION: 145

Spirochaetes is/are

A.
a class of viruses
B.
myxobacterie
C.
spiral-shaped bacteria
D.
ricrhittsias

Solution:

QUESTION: 146

SER and RER can be distinguished with its presence in

A.
protein synthesising cells
B.
protein and lipid synthesising cells
C.
carbohydrates and fat synthesising cells
D.
tat and protein synthesising cells

Solution:

QUESTION: 147

Human Immuno Virus (HIV) contain a protein coat and genetic material and is horse chestnut shaped

A.
double-stranded DNA
B.
single-stranded DNA
C.
single-stranded RNA
D.
double-stranded RNA

Solution:

QUESTION: 148

Root cambium is derived from

A.
primary meristem
B.
secondary meristem
C.
intercalary meristem
D.
apical maristem

Solution: The vascular cambium of the root is a complete secondary meristem. It continues to form secondary xylem on the inner side and secondary phloem on the outer side. Secondary phloem consists of sieve tubes, companion cells, phloem parenchyma and phloem fibres. Secondary xylem is similarly made of vessels, xylem parenchyma and xylem fibres.

QUESTION: 149

Which one contain most reduced form of stem?

A.
Bulb
B.
Rhizome
C.
Tuber
D.
Twinner

Solution:

QUESTION: 150

Which enzyme complex is responsible for the reduction of molecular nitrogen to the level of NH3 in root module of legume?

A.
Aminase
B.
Nitrogenase
C.
Nitrate reductase
D.
Nitrite reductase

Solution:

QUESTION: 151

Pollorum disease in fowls is caused by

A.
Salmonella
B.
clostridium
C.
Hemophilus
D.
Mycobacterum

Solution:

QUESTION: 152

The plants which can withstand with narrow and broad range of temperature tolerance respectively are

A.
munotherrnai and stencthermal
B.
stenuthermal and monothermal
C.
stenothermal and eurythermal
D.
stenothermal and mesothermal

Solution:

QUESTION: 153

Desert can be converted into a lush green land by planting

A.
terestrial plant
B.
xerophytic plant
C.
halophytes
D.
psammophytes

Solution:

QUESTION: 154

Which one is a source of commercially important product Syzygium aromaticum?

A.
Flower bud
B.
Axillany bud
C.
Thalamus
D.
Peduncle

Solution: Flower bud and it's use as a spice.

QUESTION: 155

When a fern plant is developed from its prothallus without fertilisation? This phenomenon is an example of

A.
parthenocarpy
B.
apospory
C.
organogenesis
D.
none of the above

Solution:

QUESTION: 156

Bruners gland are characteristic feature of

A.
jejunum of small intestine
B.
ileum
C.
duodenum
D.
fundic region of stomach

Solution:

QUESTION: 157

Which one dental formula represent a heterodont placental draught and tough animal?

A.
B.
C.
D.

Solution:

QUESTION: 158

Green muffler play a Important role against

A.
noise pollution
B.
radioactive pollution
C.
soil pollution
D.
air pollution

Solution:

QUESTION: 159

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Plasmids are single stranded extrachromosomal DNA.
Reason : Plasmid are usually present in eukaryotic cells.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 160

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : The megaspore mother cell divide by meiotic division to produce four spore.
Reason : Megaspore Mother Cell (MMC) are diploid and megaspore are haploid.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 161

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Living organisms are considered as a close system.
Reason : Energy of living organism can not be lost or gained from external environment.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 162

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Medulla is considered as a respiratory centre in animals.
Reason : Rate of breathing is regulated by medulla because of the changes in O₂content of blood.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 163

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Tropical rain forest are nth in flora and fauna along with microbes on this biosphere.
Reason : The low latitude humid tropics harbour the rainforest ecosystem.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution: Yes the answer must be ( A ) because as tropical rain forest is biologically rich so in order to favour it there is a presence of rain forest.

QUESTION: 164

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Erythroblastosis foetalis is disease related with Rh factor and may cause death of developing foetus inside womb.
Reason : It cause massive destruction of erythrocytes in foetus that leads to anaemia and tissue damage of foetus.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 165

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Radial vascular bundle is the characteristic of majority of the roots including dicots and monocots.
Reason : Monocot stein is characterised by colletral open vascular bundle.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 166

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Due to excessive use of fertiliser and pesticides the available capillary water turns to hypotonic is relation to cell sap.
Reason : The water molecule as a result diffuse out of the cells due to endosmosis.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 167

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Amphibian heart consist of two auricle and one ventricle.
Reason : The deoxygenated blood is returned to heart through sinus venosus.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 168

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Humans are considered advanced from all its primates relatives because of the larger cranial capacity and high intelligence.
Reason : A lumber curve is present in man which is also present in apes.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 169

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Chromosomes are divided into heterochromatin and euchromatin
part.
Reason : Heterochromatin are those regions of chromosome that remain condensed during interphase and rest of the non-condensed chromosome are called euchromatin.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 170

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Tongue is a gustatoreceptor.
Reason : Receptors for gustatosensation are located in taste bud.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 171

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Aflatoxin are commercially produced by a species of aspergilli.
Reason : These toxin are useful to mankind.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 172

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Mosses are might have originated from algae.
Reason : Protonema of bryophytes Is similar to some green algae.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 173

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Cartilage and bone are flexible and rigid connective tissue.
Reason : Blood is a connective tissue.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 174

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Cell wall is generally absent in animal cell.
Reason : Animal cells are covered by a cell membrane.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 175

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Holoblastic cleavage with almost equal sized blastomeres is a characteristics feature of placental mammals.
Reason : Egg of most mammal including human are of centrolecithal type.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 176

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Most cells in human body release excessive amount of inflammatory chemicals which cause allergic reactions.
Reason : Allergen present in environment on reaching human body stimulate mast cells in certain individuals.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 177

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : In angiosperm, the conduction of water is more efficient because xylem contain vessels.
Reason : Conduction of water by xylem vessels elements is an active process with energy supplied by xylem parenchyma rich in mitochondria.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 178

These questions consist of two statements each printed as assertion and reason. Whole answering these questions you are required to choose any one of of following responses. 

Assertion : Gram negative bacteria do not retain the stain when washed with alcohol.
Reason : The outer membrane of Gram negative (-ve) bacteria contain lipopolysaccharides, a part of which is integrated into membrane lipid.

A.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B.
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C.
Assertion is true but Reason is false.
D.
Both Assertion and Reason are false

Solution:

QUESTION: 179

The most appropriate measure of a country’s economic growth is its

A.
Gross Domestic Product (GDP)
B.
Net Domestic Product (NDP)
C.
Net National Product (NNP)
D.
Per Capita Product (PCP)

Solution: Gross Domestic Product (GDP) is a monetary measure of the market value of all the final goods and services produced in a period of time, often annually or quarterly. Nominal GDP estimates are commonly used to determine the economic performance of a whole country or region, and to make international comparisons.

QUESTION: 180

Who amongst the following is the regulator of Insurance sector in India?

A.
IRDA
B.
SEBI
C.
AMFI
D.
RBI

Solution: The Insurance Regulatory and Development Authority of India (IRDAI) is an autonomous,statutory body tasked with regulating and promoting the insurance and re-insurance industries in India.It was constituted by the Insurance Regulatory and Development Authority Act, 1999, an Act of Parliament passed by the Government of India. The agency's headquarters are in Hyderabad ,Telangana . chairman -Subhash Chandra Khuntia.

QUESTION: 181

The Dakshinamurti idol of Shiva depicts him in which form?

A.
Teacher
B.
Dancing
C.
Reclining
D.
Meditating

Solution: Dakshinamurti is an aspect of Shiva as a guru(teacher) of all types of knowledge. This form represents him as a teacher of music, yoga and wisdom, etc. He is considered as an embodiment of knowledge and destroyer of ignorance.

QUESTION: 182

The only Muslim woman to sit on the throne of Delhi was

A.
Razia Sultan
B.
Mumtaz Mahal
C.
Hamida Banu Begum
D.
Nurzahan

Solution:

QUESTION: 183

Which of the following organisations makes `Doing Business Report’ everyyear?

A.
WTO
B.
World Bank
C.
UNCTAD
D.
IMF

Solution:

QUESTION: 184

‘Mahatma Gandhi’ returned to India. leaving South Africa forever In

A.
1915
B.
1919
C.
1914
D.
1916

Solution:

QUESTION: 185

Which one of the following is not a constitutional body?

A.
Union Public service commission
B.
State Public Service commission
C.
Finance commission
D.
Planning commission

Solution:

QUESTION: 186

Article 340 of the Indian Constitution deals with

A.
Finance Commission
B.
Backward Classes Commission
C.
Election Commission
D.
Union Public Service Commission

Solution:

QUESTION: 187

The North-South and East-West corridors of the National Highway Development project meet at.

A.
Kanpur
B.
Jhansi
C.
Lucknow
D.
Varanasi

Solution:

QUESTION: 188

How many languages are there in the Eight Schedule of the Constitution of India?

A.
22
B.
16
C.
18
D.
20

Solution:

QUESTION: 189

Which of the following longitudes is known as ‘Standard Meridian’ in India?

A.
87o 30′ E
B.
85o 30. E
C.
84o 30’E
D.
82o 30. E

Solution:

QUESTION: 190

Joint Meeting of both Houses of Parliament is chaired by

A.
Speakers of Lok Sabha
B.
President of India
C.
Chairman of Rajya Sabha
D.
None of the above

Solution:

QUESTION: 191

A book ‘Fault Lines’ is written by

A.
Raghuram Rajan
B.
D Subba Rao
C.
Vimal Jalan
D.
Montek Singh Ahluwalia

Solution:

QUESTION: 192

Vitamin-K is necessary for

A.
formation of prethrombin
B.
prevention of pernicious anaemia
C.
prevention of rickets
D.
formation of DNA

Solution:

QUESTION: 193

The study related to the plants being used as vegetabel is called

A.
Flori-culture
B.
Pormology
C.
Horticulture
D.
Olericulture

Solution:

QUESTION: 194

A parallel port is most often used by

A.
mouse
B.
monitor
C.
printer
D.
external storage device

Solution:

QUESTION: 195

CDMA stands for

A.
Code Division Multiple Access

AIIMS Previous Paper - 2013

198 Questions MCQ Test AIIMS Mock Tests & Previous Year Papers | AIIMS Previous Paper - 2013

To obtain a p-type germanium semiconductor, it must be doped with

Sound waves do not.show the phenomenon of

The magnifying power of a compound microscope is high If