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

Liquids are less common than :

Question # 2

Gases exert pressure on walls of container because the gas molecules

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

All gases can be compressed by :

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Gases show uniform behaviour towards their

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

Liquids are less common than

Question # 19

In solids, the temperature of is the measure of

Question # 20

The molar value of CO2 is maximum at :

Question # 21

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

Question # 22

Keeping the temperature constant, if the gas is expanded

Question # 23

In Solids, the temperature is the measure of

Question # 24

Which Statement about gases is not correct?

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

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

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 intramolecular force in gases are :
A. Weak
B. Normal
C. Very weak
D. Strong
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 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
4 Boyle's law is represented as :
A.

P∞ 1/T

B. V and 1/P
C. P∞P
D. P∞1/P
5 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
6 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
7

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

6.02/22.4


B.

12.04/22.4 *1023


C.

18/22.4*1023

D.

55.6*6.02*1023 * 1023
8 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
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 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

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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