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

00:00
Question # 1

Cooling happens under the Joule Thomson Effect due to sudden :

Question # 2

Which statement about gases is not correct ?

Question # 3

The intramolecular forces in gases are

Question # 4

Cooling happens under the Joule Thomson Effect due to sudden

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Boyle's law is represented as :

Question # 9

Which Statement about gases is not correct?

Question # 10

Which of the following is the simplest form of matter?

Question # 11

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

Question # 12

The highest temperature at which a substance can exist as a liquid is called its

Question # 13

The molar value of CO2 is maximum at :

Question # 14

The rate of diffusion of a gas is :

Question # 15

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

Question # 16

In gases and liquids, temperature is the measure of

Question # 17

Liquids are less common than

Question # 18

Keeping the temperature constant, if the gas is expanded

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

Liquids are less common than :

Question # 26

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

Question # 27

In Solids, the temperature is the measure of

Question # 28

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

Question # 29

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

Question # 30

Boyle's law doesn't fail even :

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 At constant temperature when pressure of a gas is plotted against volume, the curve is
A. Slanting straight line
B. Parabolic
C. Staight line, parallel to pressure axis
D. OF neither type
2 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
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

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
5 The movement of molecules from a region of high pressure to vacuum is called :
A. Evaporation
B. Effusion
C. Conduction
D. Difusion
6 The intramolecular forces in gases are
A. Weak
B. Normal
C. Very weak
D. Strong
7 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.
8 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
9 All gases can be compressed by :
A. Keeping constant pressure
B. Decreasing pressure
C. Increasing pressure
D. None of the above
10 Cooling happens under the Joule Thomson Effect due to sudden
A. Contraction
B. Absorption
C. Expansion
D. All of above

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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