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

ECAT Chemistry Chapter 3 Gases

00:00
Question # 1

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

Question # 2

Which of the following is the simplest form of matter?

Question # 3

Absolute temperature of a gas is proportional to

Question # 4

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

Question # 5

The rate of diffusion of a gas in

Question # 6

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

Question # 7

The intramolecular forces in gases are

Question # 8

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

Question # 9

Cooling happens under the Joule Thomson Effect due to sudden :

Question # 10

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

Question # 11

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

Question # 12

In gases and liquids, temperature is the measure of

Question # 13

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

Question # 14

The molar value of CO2 is maximum at :

Question # 15

All gases can be compressed by :

Question # 16

In gases and liquids, temperature is the measure of :

Question # 17

Boyle's law doesn't fail even :

Question # 18

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

Question # 19

Gases exert pressure on walls of container because the gas molecules

Question # 20

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

Question # 21

Gases show uniform behaviour towards their

Question # 22

The intramolecular force in gases are :

Question # 23

Boyle's law is represented as :

Question # 24

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

Question # 25

Which statement about gases is not correct ?

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

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

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


Topic Test

00:00

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 Gases deviate from ideal behavior at high pressure. Which of the following is correct for non-ideality ?
A. At high pressure, the gas molecules move in one direction only.
B. At high pressure, the collisions between the gas molecules are increased manifold.
C. At high pressure, the volume of gas becomes insignificant.
D. At high pressure, the inter molecular attraction become significant.
2 The intramolecular forces in gases are
A. Weak
B. Normal
C. Very weak
D. Strong
3 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
4 Gases show uniform behaviour towards their
A. Internal conditions
B. External conditions
C. Internal and external conditions
D. None of above
5 For a gas obeying Boyle's law if pressure is doubled, the volume becomes :
A. Remain constant
B. Double
C. One half
D. None of above
6

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

A. Temperature is lowered and pressure is increased
B. Temperature is increasedand pressure is lowered
C. Temperature and pressure both are lowered
D. Temperature and pressure both are increased
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 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 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.
10 In Solids, the temperature is the measure of
A. Rotational kinetic energies
B. Translational kinetic energies
C. Vibrational kinetic energies
D. None of above

Test Questions