ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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

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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
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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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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
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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

ECAT Chemistry Chapter 3 Important MCQ's

Sr.#	Question	Answer
1	The movement of gas molecules from a region of high pressure to vacuum is called	A. Evaportation B. Effusion C. Conduction D. Diffusion
2	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.
3	A graph b/w P and 1/V at constant temperature and number of moles is parallel to :	A. None of above B. X-axis C. Z-axis D. Y-axis
4	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
5	Which of the following is the simplest form of matter?	A. Gaseous state B. Liquid state C. Solid state D. All of above
6	The rate of diffusion of a gas is :	A. Inversely proportional to its density B. Inversely proportional to square root of its molecular mass C. Directly proportional to molecular mass D. Directly proportional to its density
7	The rate of diffusion of a gas in	A. Inversely proportional to its density B. Inversely proportional to square root of its molecular mass C. Directly proportional to molecular mass D. Directly proportional to its density
8	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
9	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.
10	The graph between pressure and volume at constant temperature for a gas is	A. Isobaric B. Isothermal C. Isotherm D. None 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

Boyle's law doesn't fail even :

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

The rate of diffusion of a gas in

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

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

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

The rate of diffusion of a gas is :

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

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

Absolute temperature of a gas is proportional to

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

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

In gases and liquids, temperature is the measure of :

All gases can be compressed by

Which statement about gases is not correct ?

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 :

Gases shows uniform behavior toward their :

Liquids are less common than

The intramolecular force in gases are :

In gases and liquids, temperature is the measure of

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

The molar value of CO2 is maximum at :

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

The intramolecular forces in gases are

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

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

Cooling happens under the Joule Thomson Effect due to sudden :

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

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

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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 :