ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 3 Gases

Try The MCQ's Test For ECAT Chemistry Chapter 3 Gases

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ECAT Chemistry Chapter 3 Gases

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Question # 1

Gases show uniform behaviour towards their

Question # 2

The deviation of a gas from ideal behavior is maximum at :

Question # 3

If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of gas will :

Question # 4

The intramolecular forces in gases are

Question # 5

Gases of air always remain in random motion and do not settle due to :

Question # 6

In Boyle's law which of the following pair is variable

Question # 7

Boyle's law is represented as :

Question # 8

If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of the gas will be

Question # 9

Boyle's law doesn't fail even :

Question # 10

All gases can be compressed by

Question # 11

The movement of gas molecules from a region of high pressure to vacuum is called

Question # 12

A graph between P and PV at constant temperature and number of mole is parallel to

Question # 13

In Boyle's law which of the following pair is variable :

Question # 14

How should condition be changed to prevent the volume of a given gas from expanding whine its mass is increased ?

Question # 15

The deviation of a gas from ideal behavior is maximum at :

Question # 16

The intramolecular force in gases are :

Question # 17

If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of gas will :

Question # 18

According to Boyle's law. which parameters give a straight line parallel to x-axis, when we plot a graph between

Question # 19

The rate of diffusion of a gas in

Question # 20

Gases of air, always remain in random motion and do not settle due to

Question # 21

In solids, the temperature of is the measure of

Question # 22

All gases can be compressed by :

Question # 23

According to Boyle's law, which parameters give a straight line parallel to axis-s, when we plot a graph between:

Question # 24

Which of the following is the simplest form of matter?

Question # 25

In Solids, the temperature is the measure of

Question # 26

The graph between pressure and volume at constant temperature for a gas is

Question # 27

Liquids are less common than

Question # 28

Pressure remaining constant, at which temperature volume of gas will become twice of what it is at 0°C ?

Question # 29

In Boyle's law which of the following pair remains constant

Question # 30

A graph b/w P and 1/V at constant temperature and number of moles is parallel to :

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 The deviation of a gas from ideal behavior is maximum at :
A. -10°C and 5.0 atm
B. -10°C and 2.0 atm
C. 100°C and 2.0 atm
D. 0°C and 2.0 atm
2 The density of a gas is directly proportional to pressure, inversely proportional to temperature and directly proportional to
A. Viscosity
B. Molar mass
C. Momentum
D. All of above
3 Boyle's law does not fall even
A. Temperature is extremely high
B. Pressure is extremely high
C. Mixture of gases is taken
D. all of above
4 A graph between P and PV at constant temperature and number of mole is parallel to
A. y axis
B. z axis
C. x axis
D. pressure axis
5 All gases can be compressed by
A. Keeping constant pressure
B. Decreasing pressure
C. Increasing pressure
D. None of above
6 Absolute temperature of a gas is proportional to
A. Rotational kinetic energy
B. Translational kinetic energy
C. Vibrational kinetic energy
D. Potential energy
7 The movement of gas molecules from a region of high pressure to vacuum is called
A. Evaportation
B. Effusion
C. Conduction
D. Diffusion
8 Gases of air always remain in random motion and do not settle due to :
A. Difference in molecular masses of air gases.
B. Difference in partial pressure of gas molecules.
C. Unequal number of different gas molecules.
D. Elastic collision of gas molecules.
9 Equal masses of methane and oxygen are mixed in an empty container at 25°CThe fraction of total pressure exerted by oxygen is :
A. 1/2
B. 8/9
C. 1/9
D. 16/17
10 In Boyle's law which of the following pair remains constant
A. Temperature and quality of a gas
B. Pressure and quality of a gas
C. Temperature and pressure
D. Temperature and quantity of a gas

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