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 rate of diffusion of a gas is :

Question # 2

Gases exert pressure on walls of container because the gas molecules :

Question # 3

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

Question # 4

Number of molecules in one dm3 of water is close to :

Question # 5

Absolute temperature of a gas is proportional to

Question # 6

Cooling happens under the Joule Thomson Effect due to sudden :

Question # 7

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

Question # 8

Which of the following is the simplest form of matter?

Question # 9

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

Question # 10

In solids, the temperature of is the measure of

Question # 11

All gases can be compressed by

Question # 12

Gases exert pressure on walls of container because the gas molecules

Question # 13

Boyle's law doesn't fail even :

Question # 14

Boyle's law is represented as :

Question # 15

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

Question # 16

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

Question # 17

In gases and liquids, temperature is the measure of

Question # 18

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

Question # 19

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

Question # 20

The relation ships b/w volume of given amount of gas and prevailing conditions of temperature and pressure are :

Question # 21

Liquids are less common than

Question # 22

Gases shows uniform behavior toward their :

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

Boyle's law does not fall even

Question # 27

Which of the following is the simplest form of matter?

Question # 28

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

Question # 29

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

Question # 30

All gases can be compressed by :

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 Which of the following is the simplest form of matter?
A. Gaseous state
B. Liquid State
C. Solid State
D. All of above
2 The product of pressure and volume remains constant when temperature and quantity of gas is
A. zero
B. variable
C. kept constant
D. None of these
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 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
5 A graph b/w P and 1/V at constant temperature and number of moles is parallel to :
A. None of above
B. X-axis
C. Z-axis
D. Y-axis
6

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

A. Temperature is lowered and pressure is increased
B. Temperature is increasedand pressure is lowered
C. Temperature and pressure both are lowered
D. Temperature and pressure both are increased
7 If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of the gas will be
A. Remain unchanged
B. Doubled
C. Reduced
D. Increased four times
8 The rate of diffusion of a gas is :
A. Inversely proportional to its density
B. Inversely proportional to square root of its molecular mass
C. Directly proportional to molecular mass
D. Directly proportional to its density
9 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
10 The relationships between volume of a given amount of gas and the prevailing conditions of temperature and pressure are
A. Charle's Law
B. Graham's Law
C. Boyle's Law
D. Gas Laws

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