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

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

Question # 2

Gases show uniform behaviour towards their

Question # 3

Cooling happens under the Joule Thomson Effect due to sudden :

Question # 4

Boyle's law doesn't fail even :

Question # 5

Which of the following will have the same number of molecules at STP ?

Question # 6

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

Question # 7

Cooling happens under the Joule Thomson Effect due to sudden

Question # 8

Boyle's law is represented as :

Question # 9

The density of a gas is directly and volume at constant temperature for a gas is

Question # 10

Which of the following is the simplest form of matter?

Question # 11

Gases shows uniform behavior toward their :

Question # 12

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

Question # 13

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

Question # 14

The rate of diffusion of a gas is :

Question # 15

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

Question # 16

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

Question # 17

Keeping the temperature constant, if the gas is expanded

Question # 18

In gases and liquids, temperature is the measure of :

Question # 19

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

Question # 20

Absolute temperature of a gas is proportional to

Question # 21

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

Question # 22

In solids, the temperature of is the measure of

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

All gases can be compressed by :

Question # 27

The rate of diffusion of a gas in

Question # 28

The intramolecular force in gases are :

Question # 29

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

Question # 30

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

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 Absolute temperature of a gas is proportional to
A. Rotational kinetic energy
B. Translational kinetic energy
C. Vibrational kinetic energy
D. Potential energy
2 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
3 In Boyle's law which of the following pair is variable
A. Temperature and quantity of a gas
B. Pressure and Volume
C. Volume and quantity of a gas
D. Pressure and quantity of a gas
4 The ratio of volume to temperature on Kelvin scale is constant according to
A. Charle's law
B. Newton's law
C. Coulomb's law
D. Boyle's law
5 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
6 The intramolecular forces in gases are
A. Weak
B. Normal
C. Very weak
D. Strong
7 Cooling happens under the Joule Thomson Effect due to sudden :
A. Contraction
B. Absortption
C. Expansion
D. All of above
8 For a gas obeying Boyle's law if pressure is doubled, the volume becomes :
A. Remain constant
B. Double
C. One half
D. None of above
9 Which statement about gases is not correct ?
A. The spread throughout the vessel.
B. Pressure is due to collision
C. There are large spaces between the molecules.
D. molecules are arranged regularly.
10 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

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