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
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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	All gases can be compressed by	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure D. None of above
2	The molar value of CO₂is maximum at :	A. STP B. 127°C and 1 atm C. 0°C and 2 atm D. 273°C and 2 atm
3	The graph between pressure and volume at constant temperature for a gas is	A. Isobaric B. Isothermal C. Isotherm D. None of above
4	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.
5	In gases and liquids, temperature is the measure of :	A. Average transnational kinetic energies of molecules. B. Average vibrational kinetic energies of molecules. C. Average rotational kinetic energies of molecules. D. None of above
6	Boyle's law does not fall even	A. Temperature is extremely high B. Pressure is extremely high C. Mixture of gases is taken D. all of above
7	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
8	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
9	All gases can be compressed by :	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure D. None of the above
10	The movement of gas molecules from a region of high pressure to vacuum is called	A. Evaportation B. Effusion C. Conduction D. Diffusion

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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

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

All gases can be compressed by

Liquids are less common than

Which of the following is the simplest form of matter?

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

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

The rate of diffusion of a gas is :

In gases and liquids, temperature is the measure of :

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

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

In solids, the temperature of is the measure of

Liquids are less common than :

Which Statement about gases is not correct?

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

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

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

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

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

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

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

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

Gases show uniform behaviour towards their

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

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

Boyle's law does not fall even

The product of pressure and volume remains constant when temperature and quantity of gas is

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

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

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

ECAT Chemistry Chapter 3 Important MCQ's

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Number of molecules in one dm³of water is close to :