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
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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 gases and liquids, temperature is the measure of	A. Average translational kinetic energies of molecules B. Average vibrational kinetic energies of molecules C. Average rotational kinetic energies of molecules D. None of above
2	The molar value of CO₂is maximum at :	A. STP B. 127°C and 1 atm C. 0°C and 2 atm D. 273°C and 2 atm
3	How should condition be changed to prevent the volume of a given gas from expanding whine its mass is increased ?	A. Temperature is lowered and pressure is increased B. Temperature is increasedand pressure is lowered C. Temperature and pressure both are lowered D. Temperature and pressure both are increased
4	All gases can be compressed by	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure D. None of above
5	Liquids are less common than :	A. Solids B. Plasmas C. Gases D. All of above
6	Equal masses of methane and oxygen are mixed in an empty container at 25°CThe fraction of total pressure exerted by oxygen is :	A. 1/2 B. 8/9 C. 1/9 D. 16/17
7	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
8	In solids, the temperature of is the measure of	A. Rotational kinetic energies B. transnational kineticenergies C. Vibrationalkineticenergies D. None of the above
9	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
10	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

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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

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

Which Statement about gases is not correct?

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

Absolute temperature of a gas is proportional to

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

The rate of diffusion of a gas in

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

In Solids, the temperature is the measure of

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

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

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

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 ?

All gases can be compressed by :

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

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

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

Gases exert pressure on walls of container because the gas molecules

Gases shows uniform behavior toward their :

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

All gases can be compressed by

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

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

Cooling happens under the Joule Thomson Effect due to sudden

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

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

Gases show uniform behaviour towards their

Liquids are less common than :

Keeping the temperature constant, if the gas is expanded

Liquids are less common than

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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 :