ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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Fatima Tabassum 11 - Jan - 2025 02 Min 30 Sec 115/120
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kayani 17 - Jul - 2024 07 Min 39 Sec 95/120
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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	At constant temperature when pressure of a gas is plotted against volume, the curve is	A. Slanting straight line B. Parabolic C. Staight line, parallel to pressure axis D. OF neither type
2	In Solids, the temperature is the measure of	A. Rotational kinetic energies B. Translational kinetic energies C. Vibrational kinetic energies D. None of above
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	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
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	The ratio of volume to temperature on Kelvin scale is constant according to	A. Charle's law B. Newton's law C. Coulomb's law D. Boyle's law
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	For a gas obeying Boyle's law if pressure is doubled, the volume becomes	A. Remains constant B. Double C. One half D. None of above
9	The intramolecular force in gases are :	A. Weak B. Normal C. Very weak D. Strong
10	The density of a gas is directly proportional to pressure, inversely proportional to temperature and directly proportional to	A. Viscosity B. Molar mass C. Momentum D. All 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

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 :

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

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

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

Which of the following is the simplest form of matter?

The rate of diffusion of a gas in

In solids, the temperature of is the measure of

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

Which of the following is the simplest form of matter?

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

Gases exert pressure on walls of container because the gas molecules

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

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

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

All gases can be compressed by :

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

Boyle's law does not fall even

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

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

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

In gases and liquids, temperature is the measure of

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

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

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

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

Gases shows uniform behavior toward their :

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

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

Gases show uniform behaviour towards their

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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 :