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

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

Question # 2

In solids, the temperature of is the measure of

Question # 3

All gases can be compressed by

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Gases show uniform behaviour towards their

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

Keeping the temperature constant, if the gas is expanded

Question # 13

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

Question # 14

The rate of diffusion of a gas is :

Question # 15

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

Question # 16

Boyle's law is represented as :

Question # 17

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

Question # 18

Liquids are less common than :

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

Gases shows uniform behavior toward their :

Question # 24

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

Question # 25

Boyle's law doesn't fail even :

Question # 26

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

Question # 27

Liquids are less common than

Question # 28

Absolute temperature of a gas is proportional to

Question # 29

All gases can be compressed by :

Question # 30

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

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 In solids, the temperature of is the measure of
A. Rotational kinetic energies
B. transnational kineticenergies
C. Vibrationalkineticenergies
D. None of the above
3 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
4 Liquids are less common than
A. Solids
B. Plasmas
C. Gases
D. All of above
5 In Solids, the temperature is the measure of
A. Rotational kinetic energies
B. Translational kinetic energies
C. Vibrational kinetic energies
D. None of above
6 Gases deviate from ideal behavior at high pressure. Which of the following is correct for non-ideality ?
A. At high pressure, the gas molecules move in one direction only.
B. At high pressure, the collisions between the gas molecules are increased manifold.
C. At high pressure, the volume of gas becomes insignificant.
D. At high pressure, the inter molecular attraction become significant.
7

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

A.

546

B. 200
C. 546K
D. 273K
8

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

A.

280 CM3 of CO2 and 280 CM3 of N2O

B.

11.2 dm3 of O2 and 32 g of O2

C.

44 g of CO2 and 11.2 dm3 of CO

D.

28 g of N2 and 5.6 dm3 of oxygen

9 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
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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  • ahsan

    ahsan

    20 Jul 2019

    hello

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