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

In solids, the temperature of is the measure of

Question # 2

In gases and liquids, temperature is the measure of

Question # 3

All gases can be compressed by

Question # 4

Which of the following is the simplest form of matter?

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Gases shows uniform behavior toward their :

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Boyle's law doesn't fail even :

Question # 15

Liquids are less common than

Question # 16

Boyle's law is represented as :

Question # 17

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

Question # 18

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

Question # 19

The molar value of CO2 is maximum at :

Question # 20

Gases show uniform behaviour towards their

Question # 21

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

Question # 22

The rate of diffusion of a gas in

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

Absolute temperature of a gas is proportional to

Question # 28

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

Question # 29

Keeping the temperature constant, if the gas is expanded

Question # 30

The intramolecular force in gases are :

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 In Boyle's law which of the following pair remains constant
A. Temperature and quality of a gas
B. Pressure and quality of a gas
C. Temperature and pressure
D. Temperature and quantity of a gas
2

Which of the following is the simplest form of matter?
A. Gaseous state
B. Liquid state
C. Solid state
D. All of above
3 Equal masses of methane and oxygen are mixed in an empty container at 25°CThe fraction of total pressure exerted by oxygen is :
A. 1/2
B. 8/9
C. 1/9
D. 16/17
4 Liquids are less common than :
A. Solids
B. Plasmas
C. Gases
D. All of above
5

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

6.02/22.4


B.

12.04/22.4 *1023


C.

18/22.4*1023

D.

55.6*6.02*1023 * 1023
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 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 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
9 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
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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