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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
Y

Yasmeen Ashraf 04 - Jun - 2024 06 Min 46 Sec 75/120

ECAT Chemistry Chapter 3 Important MCQ's

Sr.#	Question	Answer
1	Which Statement about gases is not correct?	A. They spread throughout the vessel B. Pressure is due to collision C. There are larger spaces between the molecules D. Molecules are arranged regularly
2	Gases shows uniform behavior toward their :	A. Internal conditions B. External conditions C. Internal and external conditions D. None of above
3	Boyle's law does not fall even	A. Temperature is extremely high B. Pressure is extremely high C. Mixture of gases is taken D. all of above
4	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
5	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
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	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
8	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
9	The order of the rate of diffusion of gases NH₃,SO₂, CL₂, and CO₂ IS :	A. NH_{3 >}SO_{2 >}CL_{2 >}CO₂ B. NH_{3 >}CO_{2 >}SO_{2 >}CL₂ C. CL_{2 >}SO_{2 >}CO_{2 >}NH₃ D. NH_{3 >}CO₂_>CL_{2 >}SO₂
10	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

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ECAT Chemistry Chapter 3 Gases

MCQ's Test For ECAT Chemistry Chapter 3 Gases

ECAT Chemistry Chapter 3 Gases

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

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

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

Cooling happens under the Joule Thomson Effect due to sudden :

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

The rate of diffusion of a gas in

Boyle's law doesn't fail even :

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

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

Absolute temperature of a gas is proportional to

The molar value of CO2 is maximum at :

In Solids, the temperature is the measure of

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

The intramolecular forces in gases are

Which of the following will have the same number of molecules at STP ?

Which of the following is the simplest form of matter?

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

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

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

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

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

Keeping the temperature constant, if the gas is expanded

In gases and liquids, temperature is the measure of

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

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

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

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

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

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

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

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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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Number of molecules in one dm³of water is close to :

The molar value of CO₂is maximum at :

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