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	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	Cooling happens under the Joule Thomson Effect due to sudden	A. Contraction B. Absorption C. Expansion D. All of above
3	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
4	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
5	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
6	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.
7	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
8	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
9	Which Statement about gases is not correct?	A. They spread throughout the vessel B. Pressure is due to collision C. There are larger spaces between the molecules D. Molecules are arranged regularly
10	For a gas obeying Boyle's law if pressure is doubled, the volume becomes	A. Remains constant B. Double C. One half D. None of above

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 the gas will be

Cooling happens under the Joule Thomson Effect due to sudden

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

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

Boyle's law is represented as :

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

The intramolecular force in gases are :

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

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 :

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

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

Gases shows uniform behavior toward their :

In gases and liquids, temperature is the measure of :

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

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

The intramolecular forces in gases are

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

All gases can be compressed by :

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

The rate of diffusion of a gas is :

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

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

Liquids are less common than

In Solids, the temperature is the measure of

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

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

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

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

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

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

Number of molecules in one dm³of water is close to :