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
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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	Keeping the temperature constant, if the gas is expanded	A. kinetic energy of molecules will increase B. Number of gas molecules increases C. Temperature will increases D. Pressure will decrease
2	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
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	All gases can be compressed by :	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure D. None of the above
5	A graph between P and PV at constant temperature and number of mole is parallel to	A. y axis B. z axis C. x axis D. pressure axis
6	At constant temperature when pressure of a gas is plotted against volume, the curve is	A. Slanting straight line B. Parabolic C. Staight line, parallel to pressure axis D. OF neither type
7	The ratio of volume to temperature on Kelvin scale is constant according to	A. Charle's law B. Newton's law C. Coulomb's law D. Boyle's law
8	According to Boyle's law, which parameters give a straight line parallel to axis-s, when we plot a graph between:	A. V and T B. P and V C. P and 1/V D. P and PV
9	Gases exert pressure on walls of container because the gas molecules	A. Obey gas laws B. Have definite volume C. Collide with the walls of container D. Collide with each other
10	Absolute temperature of a gas is proportional to	A. Rotational kinetic energy B. Translational kinetic energy C. Vibrational kinetic energy D. Potential energy

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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

Cooling happens under the Joule Thomson Effect due to sudden

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

Gases show uniform behaviour towards their

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

According to Boyle's law, which parameters give a straight line parallel to axis-s, when we plot a graph between:

The intramolecular force in gases are :

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

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

In gases and liquids, temperature is the measure of

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

The ratio of volume to temperature on Kelvin scale is constant according to

The rate of diffusion of a gas in

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

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

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

Which statement about gases is not correct ?

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

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

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

Liquids are less common than

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

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

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

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

Boyle's law does not fall even

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

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

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

Boyle's law is represented as :

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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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