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

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

ECAT Chemistry Chapter 3 Gases

00:00
Question # 1

In gases and liquids, temperature is the measure of :

Question # 2

All gases can be compressed by :

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

In gases and liquids, temperature is the measure of

Question # 7

In Solids, the temperature is the measure of

Question # 8

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

Question # 9

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

Question # 10

Cooling happens under the Joule Thomson Effect due to sudden :

Question # 11

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

Question # 12

Gases exert pressure on walls of container because the gas molecules

Question # 13

All gases can be compressed by

Question # 14

Gases show uniform behaviour towards their

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

Keeping the temperature constant, if the gas is expanded

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

Boyle's law does not fall even

Question # 21

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

Question # 22

The rate of diffusion of a gas in

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

Liquids are less common than :

Question # 27

The intramolecular forces in gases are

Question # 28

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

Question # 29

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

Question # 30

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

Submit

Prepare Complete Set Wise ECAT Chemistry Chapter 3 Gases MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of ECAT Chemistry Chapter 3 Gases MCQ`s Test

  • A
    Abdullah Zubair 17 - Dec - 2024 04 Min 34 Sec 120/120
  • K
    Khalida Amjad 23 - Oct - 2024 01 Min 52 Sec 115/120
  • F
    Fatima Tabassum 11 - Jan - 2025 02 Min 30 Sec 115/120
  • R
    rehan sanaullah 06 - Jun - 2024 05 Min 12 Sec 105/120
  • M
    Muhammad Abubakar 25 - Oct - 2024 14 Min 32 Sec 105/120
  • A
    AS creations 16 - Jun - 2026 07 Min 11 Sec 96/120
  • U
    Umar Saeed 21 - Jul - 2024 02 Min 11 Sec 95/120
  • K
    kayani 17 - Jul - 2024 07 Min 39 Sec 95/120
  • N
    notghouri playz 16 - Dec - 2024 16 Min 23 Sec 95/120
  • M
    Mirza Abdullah 11 - Jun - 2024 04 Min 21 Sec 90/120
  • A
    Aman Fatima 03 - Jan - 2026 17 Min 21 Sec 88/120
  • L
    Laiba Jawad 21 - Sep - 2024 07 Min 29 Sec 80/120
  • M
    M Saifullah 02 - Jul - 2024 12 Min 19 Sec 80/120
  • S
    Shazi Ansari 05 - Jun - 2024 03 Min 12 Sec 75/120
  • E
    Eraj Abeer 18 - Dec - 2024 04 Min 19 Sec 75/120

ECAT Chemistry Chapter 3 Important MCQ's

Sr.# Question Answer
1 A real gas obeying van der Waals' equation will resemble ideal gas if :
A. both 'a' and 'b' are large
B. both 'a' and 'b' are small
C. 'a' is small and 'b' is large
D. 'a' is large and 'b' is small
2 The movement of molecules from a region of high pressure to vacuum is called :
A. Evaporation
B. Effusion
C. Conduction
D. Difusion
3 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
4 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
5 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
6 The relationships between volume of a given amount of gas and the prevailing conditions of temperature and pressure are
A. Charle's Law
B. Graham's Law
C. Boyle's Law
D. Gas Laws
7 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
8 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.
9 Which of the following is the simplest form of matter?
A. Gaseous state
B. Liquid State
C. Solid State
D. All of above
10 The highest temperature at which a substance can exist as a liquid is called its
A. Critical temperature
B. Zero temperature
C. Absolute temperature
D. None of above

Test Questions