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	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
2	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.
3	The movement of gas molecules from a region of high pressure to vacuum is called	A. Evaportation B. Effusion C. Conduction D. Diffusion
4	The density of a gas is directly and volume at constant temperature for a gas is	A. Isobaric B. Isothermal C. Isotherm D. None of above
5	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
6	Which of the following is the simplest form of matter?	A. Gaseous state B. Liquid State C. Solid State D. All of above
7	Cooling happens under the Joule Thomson Effect due to sudden	A. Contraction B. Absorption C. Expansion D. All of above
8	The intramolecular force in gases are :	A. Weak B. Normal C. Very weak D. Strong
9	Absolute temperature of a gas is proportional to	A. Rotational kinetic energy B. Translational kinetic energy C. Vibrational kinetic energy D. Potential energy
10	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

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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 gases and liquids, temperature is the measure of

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

Absolute temperature of a gas is proportional to

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

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

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

Which Statement about gases is not correct?

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

In Solids, the temperature is the measure of

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

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

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

The intramolecular forces in gases are

In solids, the temperature of is the measure of

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

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

Liquids are less common than

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

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

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

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

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

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

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

All gases can be compressed by :

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

Which of the following is the simplest form of matter?

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

Boyle's law doesn't fail even :

All gases can be compressed by

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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 :