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
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Umar Saeed 21 - Jul - 2024 02 Min 11 Sec 95/120
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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
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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
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Eraj Abeer 18 - Dec - 2024 04 Min 19 Sec 75/120
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Yasmeen Ashraf 04 - Jun - 2024 06 Min 46 Sec 75/120

ECAT Chemistry Chapter 3 Important MCQ's

Sr.#	Question	Answer
1	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
2	Boyle's law is represented as :	A. P∞ 1/T B. V and 1/P C. P∞P D. P∞1/P
3	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
4	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
5	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.
6	Which statement about gases is not correct ?	A. The spread throughout the vessel. B. Pressure is due to collision C. There are large spaces between the molecules. D. molecules are arranged regularly.
7	Absolute temperature of a gas is proportional to	A. Rotational kinetic energy B. Translational kinetic energy C. Vibrational kinetic energy D. Potential energy
8	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
9	The intramolecular force in gases are :	A. Weak B. Normal C. Very weak D. Strong
10	Which of the following is the simplest form of matter?	A. Gaseous state B. Liquid state C. Solid state D. All of above

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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

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

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

Which of the following is the simplest form of matter?

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

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

In gases and liquids, temperature is the measure of

In Solids, the temperature is the measure of

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 :

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

All gases can be compressed by :

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

Boyle's law doesn't fail even :

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

Gases show uniform behaviour towards their

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

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

The intramolecular forces in gases are

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 ?

In solids, the temperature of is the measure of

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

In gases and liquids, temperature is the measure of :

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

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

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

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

Gases shows uniform behavior toward their :

Liquids are less common than :

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

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ECAT Chemistry Chapter 3 Important MCQ's

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