ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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	In gases and liquids, temperature is the measure of	A. Average translational kinetic energies of molecules B. Average vibrational kinetic energies of molecules C. Average rotational kinetic energies of molecules D. None of above
2	The movement of molecules from a region of high pressure to vacuum is called :	A. Evaporation B. Effusion C. Conduction D. Difusion
3	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
4	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.
5	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
6	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
7	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
8	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
9	The order of the rate of diffusion of gases NH₃,SO₂, CL₂, and CO₂ IS :	A. NH_{3 >}SO_{2 >}CL_{2 >}CO₂ B. NH_{3 >}CO_{2 >}SO_{2 >}CL₂ C. CL_{2 >}SO_{2 >}CO_{2 >}NH₃ D. NH_{3 >}CO₂_>CL_{2 >}SO₂
10	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.

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 3 Gases

ECAT Chemistry Chapter 3 Gases

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

Boyle's law is represented as :

Which of the following is the simplest form of matter?

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

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

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

At constant temperature when pressure of a gas is plotted against volume, the curve is

Absolute temperature of a gas is proportional to

The rate of diffusion of a gas in

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

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

Which Statement about gases is not correct?

The molar value of CO2 is maximum at :

Gases show uniform behaviour towards their

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

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

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

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

The intramolecular force in gases are :

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

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

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

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

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

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

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

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

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

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

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

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

Set 1

Set 2

Set 3

Topic Test

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

ECAT Chemistry Chapter 3 Important MCQ's

Test Questions

Share your comments & questions here

ahsan

The molar value of CO₂is maximum at :

Number of molecules in one dm³of water is close to :