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

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

Question # 2

Liquids are less common than :

Question # 3

In solids, the temperature of is the measure of

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

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

Question # 7

Which Statement about gases is not correct?

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

A graph between P and 1/V at constant temperature and number moles of a gas meets the

Question # 13

The relationships between volume of a given amount of gas and the prevailing conditions of temperature and pressure are

Question # 14

Cooling happens under the Joule Thomson Effect due to sudden

Question # 15

In gases and liquids, temperature is the measure of

Question # 16

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

Question # 17

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

Question # 18

Liquids are less common than

Question # 19

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

Question # 20

Gases shows uniform behavior toward their :

Question # 21

Which of the following is the simplest form of matter?

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

Boyle's law does not fall even

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

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

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
  • 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
  • Y
    Yasmeen Ashraf 04 - Jun - 2024 06 Min 46 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 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
3

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

A.

280 CM3 of CO2 and 280 CM3 of N2O

B.

11.2 dm3 of O2 and 32 g of O2

C.

44 g of CO2 and 11.2 dm3 of CO

D.

28 g of N2 and 5.6 dm3 of oxygen

4 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
5 A graph between P and 1/V at constant temperature and number moles of a gas meets the
A. y-axis
B. x-axis
C. origin
D. none of above
6 The intramolecular force in gases are :
A. Weak
B. Normal
C. Very weak
D. Strong
7 Gases shows uniform behavior toward their :
A. Internal conditions
B. External conditions
C. Internal and external conditions
D. None of above
8 Liquids are less common than
A. Solids
B. Plasmas
C. Gases
D. All of above
9 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
10 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

Test Questions

Is this page helpful?

Share your comments & questions here

Guest
  • ahsan

    ahsan

    20 Jul 2019

    hello

    Like
    Reply