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
F

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
E

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	The density of a gas is directly proportional to pressure, inversely proportional to temperature and directly proportional to	A. Viscosity B. Molar mass C. Momentum D. All of above
2	If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of the gas will be	A. Remain unchanged B. Doubled C. Reduced D. Increased four times
3	Gases deviate from ideal behavior at high pressure. Which of the following is correct for non-ideality ?	A. At high pressure, the gas molecules move in one direction only. B. At high pressure, the collisions between the gas molecules are increased manifold. C. At high pressure, the volume of gas becomes insignificant. D. At high pressure, the inter molecular attraction become significant.
4	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.
5	In Boyle's law which of the following pair remains constant :	A. Temperature and quality of a gas. B. Pressure and quality of a gas. C. Temperature and pressure D. Temperature and quantity of a gas.
6	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
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	For a gas obeying Boyle's law if pressure is doubled, the volume becomes :	A. Remain constant B. Double C. One half D. None of above
9	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
10	All gases can be compressed by	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure 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

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

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 :

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

Boyle's law is represented as :

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

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

Liquids are less common than

The molar value of CO2 is maximum at :

The rate of diffusion of a gas in

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

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

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

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

The order of the rate of diffusion of gases NH3,SO2, CL2, and CO2 IS :

Which of the following is the simplest form of matter?

The movement of molecules from a region of high pressure to vacuum is called :

In gases and liquids, temperature is the measure of

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

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

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

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

Which Statement about gases is not correct?

Gases shows uniform behavior toward their :

Cooling happens under the Joule Thomson Effect due to sudden :

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

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

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

The intramolecular force in gases are :

The rate of diffusion of a gas is :

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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 :

The order of the rate of diffusion of gases NH₃,SO₂, CL₂, and CO₂ IS :