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
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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	A graph between P and 1/V at constant temperature and number moles of a gas meets the	A. y-axis B. x-axis C. origin D. none of above
2	All gases can be compressed by :	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure D. None of the above
3	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
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	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	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
7	In gases and liquids, temperature is the measure of :	A. Average transnational kinetic energies of molecules. B. Average vibrational kinetic energies of molecules. C. Average rotational kinetic energies of molecules. D. None of above
8	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
9	Boyle's law doesn't fail even :	A. Temperature is extremely high B. Pressure is extremely high C. Mixture of gas is taken D. All of above
10	The graph between pressure and volume at constant temperature for a gas is	A. Isobaric B. Isothermal C. Isotherm 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 :

Boyle's law doesn't fail even :

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

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

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

In gases and liquids, temperature is the measure of

The rate of diffusion of a gas in

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

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

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

The molar value of CO2 is maximum at :

Gases shows uniform behavior toward their :

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

A graph between P and 1/V at constant temperature and number moles of a gas meets the

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

Liquids are less common than :

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

The rate of diffusion of a gas is :

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

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

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

Which statement about gases is not correct ?

In solids, the temperature of is the measure of

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

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

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

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

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

Gases exert pressure on walls of container because the gas molecules

Cooling happens under the Joule Thomson Effect due to sudden

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

The molar value of CO₂is maximum at :