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

Question # 2

In gases and liquids, temperature is the measure of

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Boyle's law is represented as :

Question # 7

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

Question # 8

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

Question # 9

In solids, the temperature of is the measure of

Question # 10

The intramolecular force in gases are :

Question # 11

Gases show uniform behaviour towards their

Question # 12

Cooling happens under the Joule Thomson Effect due to sudden :

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

Cooling happens under the Joule Thomson Effect due to sudden

Question # 23

The molar value of CO2 is maximum at :

Question # 24

Which Statement about gases is not correct?

Question # 25

All gases can be compressed by

Question # 26

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

Question # 27

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

Question # 28

The rate of diffusion of a gas in

Question # 29

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

Question # 30

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

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 The graph between pressure and volume at constant temperature for a gas is
A. Isobaric
B. Isothermal
C. Isotherm
D. None of above
2 A graph b/w P and 1/V at constant temperature and number of moles is parallel to :
A. Y-axis
B. Z-axis
C. X-axis
D. None of above
3 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
4 A graph b/w P and 1/V at constant temperature and number of moles is parallel to :
A. None of above
B. X-axis
C. Z-axis
D. Y-axis
5 Gases of air always remain in random motion and do not settle due to :
A. Difference in molecular masses of air gases.
B. Difference in partial pressure of gas molecules.
C. Unequal number of different gas molecules.
D. Elastic collision of gas molecules.
6 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
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 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 Gases of air, always remain in random motion and do not settle due to
A. Difference in molecular masses of air gases
B. Difference in partial pressure of gas molecules
C. Unequal number of different gas molecules
D. Elastic collision of gas molecules
10 The molar value of CO2 is maximum at :
A. STP
B. 127°C and 1 atm
C. 0°C and 2 atm
D. 273°C and 2 atm

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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