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

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Gases shows uniform behavior toward their :

Question # 7

The rate of diffusion of a gas is :

Question # 8

The molar value of CO2 is maximum at :

Question # 9

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

Question # 10

Number of molecules in one dm3 of water is close to :

Question # 11

Pressure remaining constant, at which temperature volume of gas will become twice of what it is at 0°C ?

Question # 12

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

Question # 13

Gases exert pressure on walls of container because the gas molecules

Question # 14

Absolute temperature of a gas is proportional to

Question # 15

Which Statement about gases is not correct?

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

In solids, the temperature of is the measure of

Question # 20

All gases can be compressed by

Question # 21

Liquids are less common than :

Question # 22

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

Question # 23

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

Question # 24

Which of the following is the simplest form of matter?

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

In gases and liquids, temperature is the measure of :

Question # 29

In Solids, the temperature is the measure of

Question # 30

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

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 According to Boyle's law. which parameters give a straight line parallel to x-axis, when we plot a graph between
A. V and T
B. P and V
C. P and 1/V
D. P and PV
2 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
3 All gases can be compressed by
A. Keeping constant pressure
B. Decreasing pressure
C. Increasing pressure
D. None of above
4 The order of the rate of diffusion of gases NH3,SO2, CL2, and CO2 IS :
A. NH3 >SO2 >CL2 >CO2
B. NH3 >CO2 >SO2 >CL2
C. CL2 >SO2 >CO2 >NH3
D. NH3 >CO2>CL2 >SO2
5 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
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 Which of the following is the simplest form of matter?
A. Gaseous state
B. Liquid State
C. Solid State
D. All of above
8 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
9 For a gas obeying Boyle's law if pressure is doubled, the volume becomes
A. Remains constant
B. Double
C. One half
D. None of above
10 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

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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