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	All gases can be compressed by	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure D. None of above
2	The intramolecular forces in gases are	A. Weak B. Normal C. Very weak D. Strong
3	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
4	Pressure remaining constant, at which temperature volume of gas will become twice of what it is at 0°C ?	A. 546 B. 200 C. 546K D. 273K
5	Cooling happens under the Joule Thomson Effect due to sudden	A. Contraction B. Absorption C. Expansion D. All of above
6	Cooling happens under the Joule Thomson Effect due to sudden :	A. Contraction B. Absortption C. Expansion D. All of above
7	In solids, the temperature of is the measure of	A. Rotational kinetic energies B. transnational kineticenergies C. Vibrationalkineticenergies D. None of the above
8	The relation ships b/w volume of given amount of gas and prevailing conditions of temperature and pressure are :	A. Charles's law B. Graham's law C. Boyle's law D. Gas law
9	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
10	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

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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

All gases can be compressed by :

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

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

Gases exert pressure on walls of container because the gas molecules

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

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

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

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

Gases shows uniform behavior toward their :

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

Cooling happens under the Joule Thomson Effect due to sudden :

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

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 ?

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

All gases can be compressed by

Which Statement about gases is not correct?

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

Absolute temperature of a gas is proportional to

The molar value of CO2 is maximum at :

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

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

Liquids are less common than :

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

The intramolecular force in gases are :

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

Which of the following is the simplest form of matter?

In gases and liquids, temperature is the measure of

In Solids, the temperature is the measure of

Boyle's law doesn't fail even :

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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 :