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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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	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
2	All gases can be compressed by	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure D. None of above
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	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
5	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
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	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
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	Liquids are less common than	A. Solids B. Plasmas C. Gases D. All of above
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

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

All gases can be compressed by :

Gases exert pressure on walls of container because the gas molecules

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

Absolute temperature of a gas is proportional to

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

Which of the following is the simplest form of matter?

Cooling happens under the Joule Thomson Effect due to sudden :

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

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

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

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

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

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

Gases deviate from ideal behavior at high pressure. Which of the following is correct for non-ideality ?

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

Keeping the temperature constant, if the gas is expanded

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

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

Boyle's law is represented as :

Which statement about gases is not correct ?

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

The rate of diffusion of a gas is :

The intramolecular forces in gases are

Number of molecules in one dm3 of water is close to :

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

Liquids are less common than

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

The intramolecular force in gases are :

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ECAT Chemistry Chapter 3 Important MCQ's

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Number of molecules in one dm³of water is close to :