ECAT Pre Engineering Chemistry Chapter 3 MCQ Test With Answer

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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	A graph between P and 1/V at constant temperature and number moles of a gas meets the	A. y-axis B. x-axis C. origin D. none of above
2	The intramolecular forces in gases are	A. Weak B. Normal C. Very weak D. Strong
3	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
4	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.
5	The rate of diffusion of a gas is :	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
6	The product of pressure and volume remains constant when temperature and quantity of gas is	A. zero B. variable C. kept constant D. None of these
7	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
8	Cooling happens under the Joule Thomson Effect due to sudden	A. Contraction B. Absorption C. Expansion D. All of above
9	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
10	All gases can be compressed by :	A. Keeping constant pressure B. Decreasing pressure C. Increasing pressure D. None of the 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

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

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

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

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

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

Gases show uniform behaviour towards their

Gases shows uniform behavior toward their :

Cooling happens under the Joule Thomson Effect due to sudden

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

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

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

In gases and liquids, temperature is the measure of :

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

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

Which Statement about gases is not correct?

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 remains constant

Liquids are less common than :

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

All gases can be compressed by :

Cooling happens under the Joule Thomson Effect due to sudden :

In solids, the temperature of is the measure of

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

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

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 is the measure of

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

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

A graph between P and 1/V at constant temperature and number moles of a gas meets the

Gases exert pressure on walls of container because the gas molecules

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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 :