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

The intramolecular forces in gases are

Question # 2

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

Question # 3

Keeping the temperature constant, if the gas is expanded

Question # 4

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

Question # 5

In Solids, the temperature is the measure of

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

The highest temperature at which a substance can exist as a liquid is called its

Question # 10

Which Statement about gases is not correct?

Question # 11

In solids, the temperature of is the measure of

Question # 12

For a gas obeying Boyle's law if pressure is doubled, the volume becomes :

Question # 13

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

Question # 14

The rate of diffusion of a gas is :

Question # 15

The relationships between volume of a given amount of gas and the prevailing conditions of temperature and pressure are

Question # 16

For a gas obeying Boyle's law if pressure is doubled, the volume becomes

Question # 17

Which statement about gases is not correct ?

Question # 18

The order of the rate of diffusion of gases NH3,SO2, CL2, and CO2 IS :

Question # 19

The product of pressure and volume remains constant when temperature and quantity of gas is

Question # 20

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

Question # 21

Gases deviate from ideal behavior at high pressure. Which of the following is correct for non-ideality ?

Question # 22

Cooling happens under the Joule Thomson Effect due to sudden :

Question # 23

Gases show uniform behaviour towards their

Question # 24

All gases can be compressed by

Question # 25

The molar value of CO2 is maximum at :

Question # 26

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

Question # 27

At constant temperature when pressure of a gas is plotted against volume, the curve is

Question # 28

Gases exert pressure on walls of container because the gas molecules

Question # 29

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

Question # 30

The rate of diffusion of a gas in

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 The graph between pressure and volume at constant temperature for a gas is
A. Isobaric
B. Isothermal
C. Isotherm
D. None of above
2 The density of a gas is directly and volume at constant temperature for a gas is
A. Isobaric
B. Isothermal
C. Isotherm
D. None of above
3 According to Boyle's law. which parameters give a straight line parallel to x-axis, when we plot a graph between
A. V and T
B. P and V
C. P and 1/V
D. P and PV
4 Keeping the temperature constant, if the gas is expanded
A. kinetic energy of molecules will increase
B. Number of gas molecules increases
C. Temperature will increases
D. Pressure will decrease
5 Absolute temperature of a gas is proportional to
A. Rotational kinetic energy
B. Translational kinetic energy
C. Vibrational kinetic energy
D. Potential energy
6 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
7 At constant temperature when pressure of a gas is plotted against volume, the curve is
A. Slanting straight line
B. Parabolic
C. Staight line, parallel to pressure axis
D. OF neither type
8 According to Boyle's law, which parameters give a straight line parallel to axis-s, when we plot a graph between:
A. V and T
B. P and V
C. P and 1/V
D. P and PV
9 Boyle's law is represented as :
A.

P∞ 1/T

B. V and 1/P
C. P∞P
D. P∞1/P
10 Boyle's law doesn't fail even :
A. Temperature is extremely high
B. Pressure is extremely high
C. Mixture of gas is taken
D. All of above

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