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

In solids, the temperature of is the measure of

Question # 2

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

Question # 3

Which Statement about gases is not correct?

Question # 4

The ratio of volume to temperature on Kelvin scale is constant according to

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

Keeping the temperature constant, if the gas is expanded

Question # 10

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

Question # 11

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

Question # 12

The rate of diffusion of a gas in

Question # 13

The rate of diffusion of a gas is :

Question # 14

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

Question # 15

A real gas obeying van der Waals' equation will resemble ideal gas if :

Question # 16

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

Question # 17

The intramolecular force in gases are :

Question # 18

Gases shows uniform behavior toward their :

Question # 19

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

Question # 20

All gases can be compressed by

Question # 21

The density of a gas is directly proportional to pressure, inversely proportional to temperature and directly proportional to

Question # 22

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

Question # 23

In gases and liquids, temperature is the measure of

Question # 24

Which statement about gases is not correct ?

Question # 25

Liquids are less common than

Question # 26

Boyle's law doesn't fail even :

Question # 27

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

Question # 28

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

Question # 29

Liquids are less common than :

Question # 30

A graph between P and 1/V at constant temperature and number moles of a gas meets the

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 The movement of gas molecules from a region of high pressure to vacuum is called
A. Evaportation
B. Effusion
C. Conduction
D. Diffusion
2 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
3 In solids, the temperature of is the measure of
A. Rotational kinetic energies
B. transnational kineticenergies
C. Vibrationalkineticenergies
D. None of the above
4 The intramolecular forces in gases are
A. Weak
B. Normal
C. Very weak
D. Strong
5 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
6 Cooling happens under the Joule Thomson Effect due to sudden
A. Contraction
B. Absorption
C. Expansion
D. All of above
7 Gases exert pressure on walls of container because the gas molecules
A. Obey gas laws
B. Have definite volume
C. Collide with the walls of container
D. Collide with each other
8 If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of gas will :
A. remain unchanged
B. increase four times
C. reduce to 1/4
D. be doubled
9 If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of gas will :
A. remain unchanged
B. increase four times
C. reduce to 1/4
D. be doubled
10 The graph between pressure and volume at constant temperature for a gas is
A. Isobaric
B. Isothermal
C. Isotherm
D. None of above

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  • ahsan

    ahsan

    20 Jul 2019

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