ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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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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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	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
2	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.
3	Gases show uniform behaviour towards their	A. Internal conditions B. External conditions C. Internal and external conditions D. None of above
4	The movement of molecules from a region of high pressure to vacuum is called :	A. Evaporation B. Effusion C. Conduction D. Difusion
5	Which of the following will have the same number of molecules at STP ?	A. 280 CM³ of CO² and 280 CM³ of N₂O B. 11.2 dm3 of O₂ and 32 g of O₂ C. 44 g of CO₂ and 11.2 dm³ of CO D. 28 g of N2 and 5.6 dm³ of oxygen
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	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.
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	Boyle's law is represented as :	A. P∞ 1/T B. V and 1/P C. P∞P D. P∞1/P
10	A graph b/w P and 1/V at constant temperature and number of moles is parallel to :	A. Y-axis B. Z-axis C. X-axis 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

Which Statement about gases is not correct?

In solids, the temperature of is the measure of

Gases shows uniform behavior toward their :

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

Cooling happens under the Joule Thomson Effect due to sudden :

Liquids are less common than :

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

Boyle's law doesn't fail even :

All gases can be compressed by

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

Gases exert pressure on walls of container because the gas molecules

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

All gases can be compressed by :

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 Boyle's law which of the following pair is variable

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

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

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

In gases and liquids, temperature is the measure of

The intramolecular force in gases are :

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

Absolute temperature of a gas is proportional to

Which of the following is the simplest form of matter?

The rate of diffusion of a gas in

Boyle's law is represented as :

In gases and liquids, temperature is the measure of :

The rate of diffusion of a gas is :

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

Keeping the temperature constant, if the gas is expanded

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