ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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A

Abdullah Zubair 17 - Dec - 2024 04 Min 34 Sec 120/120
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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	Liquids are less common than	A. Solids B. Plasmas C. Gases D. All of above
2	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
3	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
4	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
5	Gases shows uniform behavior toward their :	A. Internal conditions B. External conditions C. Internal and external conditions D. None of above
6	According to Boyle's law. which parameters give a straight line parallel to x-axis, when we plot a graph between	A. V and T B. P and V C. P and 1/V D. P and PV
7	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
8	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
9	All gases can be compressed by :	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure D. None of the above
10	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

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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 intramolecular force in gases are :

Gases exert pressure on walls of container because the gas molecules

In gases and liquids, temperature is the measure of

The rate of diffusion of a gas in

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

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

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

Liquids are less common than

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

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

Cooling happens under the Joule Thomson Effect due to sudden :

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

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

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

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

Boyle's law is represented as :

The molar value of CO2 is maximum at :

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

Boyle's law doesn't fail even :

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

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

Liquids are less common than :

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

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

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

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

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

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

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

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Number of molecules in one dm³of water is close to :

The molar value of CO₂is maximum at :