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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kayani 17 - Jul - 2024 07 Min 39 Sec 95/120
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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	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
2	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
3	Cooling happens under the Joule Thomson Effect due to sudden	A. Contraction B. Absorption C. Expansion D. All of above
4	Liquids are less common than :	A. Solids B. Plasmas C. Gases D. All of above
5	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
6	Gases of air, always remain in random motion and do not settle due to	A. Difference in molecular masses of air gases B. Difference in partial pressure of gas molecules C. Unequal number of different gas molecules D. Elastic collision of gas molecules
7	A real gas obeying van der Waals' equation will resemble ideal gas if :	A. both 'a' and 'b' are large B. both 'a' and 'b' are small C. 'a' is small and 'b' is large D. 'a' is large and 'b' is small
8	Absolute temperature of a gas is proportional to	A. Rotational kinetic energy B. Translational kinetic energy C. Vibrational kinetic energy D. Potential energy
9	The density of a gas is directly and volume at constant temperature for a gas is	A. Isobaric B. Isothermal C. Isotherm D. None of above
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

Absolute temperature of a gas is proportional to

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 in

The rate of diffusion of a gas is :

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

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 the gas will be

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

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

Boyle's law is represented as :

In solids, the temperature of is the measure of

Liquids are less common than :

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

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

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

Which of the following is the simplest form of matter?

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

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

The intramolecular force in gases are :

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

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

Keeping the temperature constant, if the gas is expanded

Gases exert pressure on walls of container because the gas molecules

Gases shows uniform behavior toward their :

Which statement about gases is not correct ?

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

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

Which of the following is the simplest form of matter?

In gases and liquids, temperature is the measure of

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

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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 :

Number of molecules in one dm³of water is close to :