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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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
A

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	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
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	Absolute temperature of a gas is proportional to	A. Rotational kinetic energy B. Translational kinetic energy C. Vibrational kinetic energy D. Potential energy
4	Gases show uniform behaviour towards their	A. Internal conditions B. External conditions C. Internal and external conditions D. None of above
5	In Boyle's law which of the following pair is variable	A. Temperature and quantity of a gas B. Pressure and Volume C. Volume and quantity of a gas D. Pressure and quantity of a gas
6	Liquids are less common than :	A. Solids B. Plasmas C. Gases D. All of above
7	The relationships between volume of a given amount of gas and the prevailing conditions of temperature and pressure are	A. Charle's Law B. Graham's Law C. Boyle's Law D. Gas Laws
8	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
9	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
10	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

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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 deviation of a gas from ideal behavior is maximum at :

All gases can be compressed by

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

In Solids, the temperature is the measure of

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

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

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

Gases exert pressure on walls of container because the gas molecules

The molar value of CO2 is maximum at :

Boyle's law doesn't fail even :

The intramolecular forces in gases are

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

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

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

Which Statement about gases is not correct?

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

Liquids are less common than

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

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

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

Gases shows uniform behavior toward their :

In gases and liquids, temperature is the measure of

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

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

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

The rate of diffusion of a gas in

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

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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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The molar value of CO₂is maximum at :

Number of molecules in one dm³of water is close to :