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 is the measure of

Question # 2

All gases can be compressed by :

Question # 3

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

Question # 4

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

Question # 5

All gases can be compressed by

Question # 6

The molar value of CO2 is maximum at :

Question # 7

Boyle's law doesn't fail even :

Question # 8

Keeping the temperature constant, if the gas is expanded

Question # 9

Cooling happens under the Joule Thomson Effect due to sudden :

Question # 10

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

Question # 11

The rate of diffusion of a gas in

Question # 12

The graph between pressure and volume at constant temperature for a gas is

Question # 13

Boyle's law is represented as :

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

Liquids are less common than :

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

In gases and liquids, temperature is the measure of

Question # 25

Cooling happens under the Joule Thomson Effect due to sudden

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

Gases show uniform behaviour towards their

Question # 30

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

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 The relation ships b/w volume of given amount of gas and prevailing conditions of temperature and pressure are :
A. Charles's law
B. Graham's law
C. Boyle's law
D. Gas law
3 In gases and liquids, temperature is the measure of :
A. Average transnational kinetic energies of molecules.
B. Average vibrational kinetic energies of molecules.
C. Average rotational kinetic energies of molecules.
D. None of above
4

Which of the following is the simplest form of matter?

A. Gaseous state
B. Liquid state
C. Solid state
D. All of above
5 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
6 For a gas obeying Boyle's law if pressure is doubled, the volume becomes
A. Remains constant
B. Double
C. One half
D. None of above
7 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
8 The intramolecular force in gases are :
A. Weak
B. Normal
C. Very weak
D. Strong
9

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
10 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

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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