ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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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

ECAT Chemistry Chapter 3 Important MCQ's

Sr.#	Question	Answer
1	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
2	For a gas obeying Boyle's law if pressure is doubled, the volume becomes :	A. Remain constant B. Double C. One half D. None of above
3	Gases shows uniform behavior toward their :	A. Internal conditions B. External conditions C. Internal and external conditions D. None of above
4	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
5	A graph between P and PV at constant temperature and number of mole is parallel to	A. y axis B. z axis C. x axis D. pressure axis
6	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
7	In Boyle's law which of the following pair is variable :	A. Temperature and quantity of a gas. B. Pressure and volume C. Volume and quantity of a gas. D. Pressure and quantity of a gas.
8	The movement of molecules from a region of high pressure to vacuum is called :	A. Evaporation B. Effusion C. Conduction D. Difusion
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	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.

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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

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

Which Statement about gases is not correct?

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

Liquids are less common than :

The rate of diffusion of a gas in

Gases shows uniform behavior toward their :

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

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

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 gas will :

The intramolecular forces in gases are

A graph b/w P and 1/V at constant temperature and number of moles is parallel to :

The molar value of CO2 is maximum at :

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

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

In gases and liquids, temperature is the measure of :

The intramolecular force in gases are :

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

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

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

All gases can be compressed by :

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

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

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

Which statement about gases is not correct ?

Gases show uniform behaviour towards their

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

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

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

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ECAT Chemistry Chapter 3 Important MCQ's

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The molar value of CO₂is maximum at :