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	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
2	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
3	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.
4	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
5	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
6	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
7	All gases can be compressed by	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure D. None of above
8	Boyle's law is represented as :	A. P∞ 1/T B. V and 1/P C. P∞P D. P∞1/P
9	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
10	Gases exert pressure on walls of container because the gas molecules :	A. Obey gas laws. B. Have definite volume. C. Collide with the walls of container. D. Collide with each other.

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

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

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

In gases and liquids, temperature is the measure of

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

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

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

Liquids are less common than

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

Cooling happens under the Joule Thomson Effect due to sudden

The intramolecular force in gases are :

Boyle's law doesn't fail even :

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

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

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

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

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

Which Statement about gases is not correct?

In gases and liquids, temperature is the measure of :

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

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

All gases can be compressed by :

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

Keeping the temperature constant, if the gas is expanded

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

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

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

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

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

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

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

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