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 show uniform behaviour towards their

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

The intramolecular forces in gases are

Question # 6

The rate of diffusion of a gas in

Question # 7

Which of the following is the simplest form of matter?

Question # 8

Cooling happens under the Joule Thomson Effect due to sudden

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

Boyle's law does not fall even

Question # 14

In Solids, the temperature is the measure of

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

Boyle's law doesn't fail even :

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

Absolute temperature of a gas is proportional to

Question # 27

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

Question # 28

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

Question # 29

Boyle's law is represented as :

Question # 30

Liquids are less common than

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 Gases shows uniform behavior toward their :
A. Internal conditions
B. External conditions
C. Internal and external conditions
D. None of above
2 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.
3

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
4 The intramolecular forces in gases are
A. Weak
B. Normal
C. Very weak
D. Strong
5 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
6 Boyle's law doesn't fail even :
A. Temperature is extremely high
B. Pressure is extremely high
C. Mixture of gas is taken
D. All of above
7 The relation ships b/w volume of given amount of gas and prevailing conditions of temperature and pressure are :
A. Charles's law
B. Graham's law
C. Boyle's law
D. Gas law
8 Cooling happens under the Joule Thomson Effect due to sudden
A. Contraction
B. Absorption
C. Expansion
D. All of above
9 In Solids, the temperature is the measure of
A. Rotational kinetic energies
B. Translational kinetic energies
C. Vibrational kinetic energies
D. None of above
10 Boyle's law is represented as :
A.

P∞ 1/T

B. V and 1/P
C. P∞P
D. P∞1/P

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  • ahsan

    ahsan

    20 Jul 2019

    hello

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