ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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ECAT Chemistry Chapter 3 Important MCQ's

Sr.#	Question	Answer
1	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
2	Absolute temperature of a gas is proportional to	A. Rotational kinetic energy B. Translational kinetic energy C. Vibrational kinetic energy D. Potential energy
3	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
4	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
5	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
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	Liquids are less common than	A. Solids B. Plasmas C. Gases D. All of above
8	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.
9	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
10	The rate of diffusion of a gas in	A. Inversely proportional to its density B. Inversely proportional to square root of its molecular mass C. Directly proportional to molecular mass D. Directly proportional to its density

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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 deviation of a gas from ideal behavior is maximum at :

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

Which Statement about gases is not correct?

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

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

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

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

All gases can be compressed by :

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

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

Gases shows uniform behavior toward their :

Cooling happens under the Joule Thomson Effect due to sudden :

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

Boyle's law does not fall even

Keeping the temperature constant, if the gas is expanded

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

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

All gases can be compressed by

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

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

In solids, the temperature of is the measure of

In Solids, the temperature is the measure of

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

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

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

The relationships between volume of a given amount of gas and the prevailing conditions of temperature and pressure are

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

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

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

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

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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 :