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 deviation of a gas from ideal behavior is maximum at :

Question # 2

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

Question # 3

Which Statement about gases is not correct?

Question # 4

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

Question # 5

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

Question # 6

The intramolecular forces in gases are

Question # 7

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

Question # 8

Liquids are less common than :

Question # 9

In Solids, the temperature is the measure of

Question # 10

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

Question # 11

Keeping the temperature constant, if the gas is expanded

Question # 12

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

Question # 13

In gases and liquids, temperature is the measure of :

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

Liquids are less common than

Question # 18

Gases shows uniform behavior toward their :

Question # 19

Boyle's law doesn't fail even :

Question # 20

Cooling happens under the Joule Thomson Effect due to sudden

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

The molar value of CO2 is maximum at :

Question # 28

Cooling happens under the Joule Thomson Effect due to sudden :

Question # 29

The rate of diffusion of a gas in

Question # 30

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

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 The intramolecular forces in gases are
A. Weak
B. Normal
C. Very weak
D. Strong
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 Equal masses of methane and oxygen are mixed in an empty container at 25°CThe fraction of total pressure exerted by oxygen is :
A. 1/2
B. 8/9
C. 1/9
D. 16/17
4 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
5 Liquids are less common than :
A. Solids
B. Plasmas
C. Gases
D. All of above
6 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
7 In gases and liquids, temperature is the measure of
A. Average translational kinetic energies of molecules
B. Average vibrational kinetic energies of molecules
C. Average rotational kinetic energies of molecules
D. None of above
8 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
9 In solids, the temperature of is the measure of
A. Rotational kinetic energies
B. transnational kineticenergies
C. Vibrationalkineticenergies
D. None of the above
10 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

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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