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

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

Question # 3

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

Question # 4

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

Question # 5

Absolute temperature of a gas is proportional to

Question # 6

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

Question # 7

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

Question # 8

The molar value of CO2 is maximum at :

Question # 9

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

Question # 10

Which Statement about gases is not correct?

Question # 11

Which of the following is the simplest form of matter?

Question # 12

The rate of diffusion of a gas is :

Question # 13

Boyle's law doesn't fail even :

Question # 14

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

Question # 15

Liquids are less common than :

Question # 16

Gases shows uniform behavior toward their :

Question # 17

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

Question # 18

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

Question # 19

The rate of diffusion of a gas in

Question # 20

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

Question # 21

All gases can be compressed by

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

In Solids, the temperature is the measure of

Question # 27

The intramolecular force in gases are :

Question # 28

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

Question # 29

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

Question # 30

Liquids are less common than

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1

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
2 Gases show uniform behaviour towards their
A. Internal conditions
B. External conditions
C. Internal and external conditions
D. None of above
3 Liquids are less common than
A. Solids
B. Plasmas
C. Gases
D. All of above
4

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
5 Boyle's law is represented as :
A.

P∞ 1/T

B. V and 1/P
C. P∞P
D. P∞1/P
6 A graph between P and PV at constant temperature and number of mole is parallel to
A. y axis
B. z axis
C. x axis
D. pressure axis
7 The movement of gas molecules from a region of high pressure to vacuum is called
A. Evaportation
B. Effusion
C. Conduction
D. Diffusion
8

Which of the following is the simplest form of matter?
A. Gaseous state
B. Liquid state
C. Solid state
D. All of above
9 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
10 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

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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