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
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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
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
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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	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.
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	The movement of gas molecules from a region of high pressure to vacuum is called	A. Evaportation B. Effusion C. Conduction D. Diffusion
4	The relation ships b/w volume of given amount of gas and prevailing conditions of temperature and pressure are :	A. Charles's law B. Graham's law C. Boyle's law D. Gas law
5	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
6	The product of pressure and volume remains constant when temperature and quantity of gas is	A. zero B. variable C. kept constant D. None of these
7	Cooling happens under the Joule Thomson Effect due to sudden	A. Contraction B. Absorption C. Expansion D. All of above
8	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
9	The graph between pressure and volume at constant temperature for a gas is	A. Isobaric B. Isothermal C. Isotherm D. None of above
10	All gases can be compressed by	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure 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

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

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

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

The rate of diffusion of a gas is :

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

Which of the following is the simplest form of matter?

In solids, the temperature of is the measure of

In Solids, the temperature is the measure of

The order of the rate of diffusion of gases NH3,SO2, CL2, and CO2 IS :

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

Keeping the temperature constant, if the gas is expanded

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

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

In gases and liquids, temperature is the measure of

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

Liquids are less common than :

The rate of diffusion of a gas in

Liquids are less common than

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

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

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

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

Gases exert pressure on walls of container because the gas molecules

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

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

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

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

Boyle's law doesn't fail even :

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

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

The order of the rate of diffusion of gases NH₃,SO₂, CL₂, and CO₂ IS :