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

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

Question # 2

Gases exert pressure on walls of container because the gas molecules

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

All gases can be compressed by :

Question # 7

The intramolecular force in gases are :

Question # 8

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

Question # 9

Boyle's law is represented as :

Question # 10

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

Question # 11

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

Question # 12

The rate of diffusion of a gas is :

Question # 13

Boyle's law doesn't fail even :

Question # 14

The rate of diffusion of a gas in

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

Gases shows uniform behavior toward their :

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

The intramolecular forces in gases are

Question # 24

Which statement about gases is not correct ?

Question # 25

In solids, the temperature of is the measure of

Question # 26

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

Question # 27

Boyle's law does not fall even

Question # 28

Cooling happens under the Joule Thomson Effect due to sudden

Question # 29

In Solids, the temperature is the measure of

Question # 30

Which of the following is the simplest form of matter?

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 According to Boyle's law, which parameters give a straight line parallel to axis-s, when we plot a graph between:
A. V and T
B. P and V
C. P and 1/V
D. P and PV
4 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
5 The movement of gas molecules from a region of high pressure to vacuum is called
A. Evaportation
B. Effusion
C. Conduction
D. Diffusion
6

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
7 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
8 Liquids are less common than
A. Solids
B. Plasmas
C. Gases
D. All of above
9 Gases show uniform behaviour towards their
A. Internal conditions
B. External conditions
C. Internal and external conditions
D. None of above
10 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

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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