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
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Khalida Amjad 23 - Oct - 2024 01 Min 52 Sec 115/120
F

Fatima Tabassum 11 - Jan - 2025 02 Min 30 Sec 115/120
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rehan sanaullah 06 - Jun - 2024 05 Min 12 Sec 105/120
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Muhammad Abubakar 25 - Oct - 2024 14 Min 32 Sec 105/120
A

AS creations 16 - Jun - 2026 07 Min 11 Sec 96/120
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Umar Saeed 21 - Jul - 2024 02 Min 11 Sec 95/120
K

kayani 17 - Jul - 2024 07 Min 39 Sec 95/120
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notghouri playz 16 - Dec - 2024 16 Min 23 Sec 95/120
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Mirza Abdullah 11 - Jun - 2024 04 Min 21 Sec 90/120
A

Aman Fatima 03 - Jan - 2026 17 Min 21 Sec 88/120
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Laiba Jawad 21 - Sep - 2024 07 Min 29 Sec 80/120
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M Saifullah 02 - Jul - 2024 12 Min 19 Sec 80/120
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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	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
2	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
3	Liquids are less common than	A. Solids B. Plasmas C. Gases D. All of above
4	A graph between P and PV at constant temperature and number of mole is parallel to	A. y axis B. z axis C. x axis D. pressure axis
5	The movement of gas molecules from a region of high pressure to vacuum is called	A. Evaportation B. Effusion C. Conduction D. Diffusion
6	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
7	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
8	The intramolecular forces in gases are	A. Weak B. Normal C. Very weak D. Strong
9	Absolute temperature of a gas is proportional to	A. Rotational kinetic energy B. Translational kinetic energy C. Vibrational kinetic energy D. Potential energy
10	If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of gas will :	A. remain unchanged B. increase four times C. reduce to 1/4 D. be doubled

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ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 3 Gases

ECAT Chemistry Chapter 3 Gases

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

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

Cooling happens under the Joule Thomson Effect due to sudden :

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

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

All gases can be compressed by

Boyle's law does not fall even

In gases and liquids, temperature is the measure of

Equal masses of methane and oxygen are mixed in an empty container at 25°CThe fraction of total pressure exerted by oxygen is :

In Solids, the temperature is the measure of

Gases exert pressure on walls of container because the gas molecules

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 :

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

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

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:

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

Keeping the temperature constant, if the gas is expanded

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

The molar value of CO2 is maximum at :

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

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

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

All gases can be compressed by :

In solids, the temperature of is the measure of

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

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

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

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

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Set 2

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

ECAT Chemistry Chapter 3 Important MCQ's

Test Questions

The molar value of CO₂is maximum at :