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
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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	Boyle's law is represented as :	A. P∞ 1/T B. V and 1/P C. P∞P D. P∞1/P
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	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
4	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
5	Equal masses of methane and oxygen are mixed in an empty container at 25°CThe fraction of total pressure exerted by oxygen is :	A. 1/2 B. 8/9 C. 1/9 D. 16/17
6	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
7	The highest temperature at which a substance can exist as a liquid is called its	A. Critical temperature B. Zero temperature C. Absolute temperature D. None of above
8	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
9	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
10	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

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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 Boyle's law which of the following pair remains constant

In Solids, the temperature is the measure of

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

Boyle's law doesn't fail even :

Absolute temperature of a gas is proportional to

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

All gases can be compressed by :

Which of the following is the simplest form of matter?

Boyle's law does not fall even

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

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

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

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

In gases and liquids, temperature is the measure of :

Cooling happens under the Joule Thomson Effect due to sudden

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

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

Keeping the temperature constant, if the gas is expanded

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

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

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

The rate of diffusion of a gas is :

At constant temperature when pressure of a gas is plotted against volume, the curve is

Which Statement about gases is not correct?

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

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

Gases show uniform behaviour towards their

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 :

The ratio of volume to temperature on Kelvin scale is constant according 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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Number of molecules in one dm³of water is close to :