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 intramolecular force in gases are :

Question # 2

Cooling happens under the Joule Thomson Effect due to sudden

Question # 3

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

Question # 4

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

Question # 5

Which of the following is the simplest form of matter?

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

Keeping the temperature constant, if the gas is expanded

Question # 13

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

Question # 14

The rate of diffusion of a gas is :

Question # 15

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

Question # 16

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

Question # 17

The rate of diffusion of a gas in

Question # 18

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

Question # 19

Boyle's law does not fall even

Question # 20

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

Question # 21

Boyle's law is represented as :

Question # 22

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

Question # 23

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

Question # 24

Liquids are less common than

Question # 25

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

Question # 26

Liquids are less common than :

Question # 27

Gases show uniform behaviour towards their

Question # 28

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

Question # 29

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

Question # 30

Equal masses of methane and oxygen are mixed in an empty container at 25°CThe fraction of total pressure exerted by oxygen is :

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 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.
2 In Solids, the temperature is the measure of
A. Rotational kinetic energies
B. Translational kinetic energies
C. Vibrational kinetic energies
D. None of above
3 All gases can be compressed by
A. Keeping constant pressure
B. Decreasing pressure
C. Increasing pressure
D. None of above
4 The intramolecular force in gases are :
A. Weak
B. Normal
C. Very weak
D. Strong
5 All gases can be compressed by :
A. Keeping constant pressure
B. Decreasing pressure
C. Increasing pressure
D. None of the above
6 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
7 Boyle's law is represented as :
A.

P∞ 1/T

B. V and 1/P
C. P∞P
D. P∞1/P
8 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.
9 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
10 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

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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