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	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
2	The intramolecular force in gases are :	A. Weak B. Normal C. Very weak D. Strong
3	How should condition be changed to prevent the volume of a given gas from expanding whine its mass is increased ?	A. Temperature is lowered and pressure is increased B. Temperature is increasedand pressure is lowered C. Temperature and pressure both are lowered D. Temperature and pressure both are increased
4	The movement of molecules from a region of high pressure to vacuum is called :	A. Evaporation B. Effusion C. Conduction D. Difusion
5	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
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	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
8	The order of the rate of diffusion of gases NH₃,SO₂, CL₂, and CO₂ IS :	A. NH_{3 >}SO_{2 >}CL_{2 >}CO₂ B. NH_{3 >}CO_{2 >}SO_{2 >}CL₂ C. CL_{2 >}SO_{2 >}CO_{2 >}NH₃ D. NH_{3 >}CO₂_>CL_{2 >}SO₂
9	In Solids, the temperature is the measure of	A. Rotational kinetic energies B. Translational kinetic energies C. Vibrational kinetic energies D. None of above
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 order of the rate of diffusion of gases NH3,SO2, CL2, and CO2 IS :

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

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

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

The intramolecular force in gases are :

All gases can be compressed by

Boyle's law doesn't fail even :

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

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

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

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

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

In solids, the temperature of is the measure of

Gases exert pressure on walls of container because the gas molecules :

Cooling happens under the Joule Thomson Effect due to sudden :

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

Cooling happens under the Joule Thomson Effect due to sudden

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

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

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

Liquids are less common than

Liquids are less common than :

In Solids, the temperature is the measure of

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

Which of the following is the simplest form of matter?

In gases and liquids, temperature is the measure of :

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

Which of the following is the simplest form of matter?

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

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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 :