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11th Class Chemistry Chapter 3 MCQs with Answers

11th Class Chemistry Chapter 3 MCQs

Welcome to the 11th Class Chemistry Chapter 3 MCQs Practice and Quiz Tests. We are presenting you with top MCQ questions from the 11th Class Chemistry Chapter 3 Gases.

You can find all the 11th Class Chemistry Chapter 3 MCQs online tests on our website. These online tests are great for learning and as well as for scoring maximum marks in your Intermediate Exams. We are making these Class 11 Chemistry MCQs online tests for those who want full marks in their exams.

Which of the following is not a characteristic of gases?
a) Definite shape
b) Low density
c) Compressibility
d) Rapid diffusion

Answer
a) Definite shape

The SI unit of pressure is:
a) Pascal
b) Newton
c) Joule
d) Watt

Answer
a) Pascal

Which gas law states that the pressure of a given mass of gas is inversely proportional to its volume at constant temperature?
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
a) Boyle’s law

The volume of a given mass of gas is directly proportional to its absolute temperature at constant pressure. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
b) Charles’s law

According to Avogadro’s law, equal volumes of different gases at the same temperature
and pressure contain an equal number of:
a) Molecules
b) Atoms
c) Electrons
d) Protons

Answer
a) Molecules

Which gas law states that the pressure of a given mass of gas is directly proportional to its absolute temperature at constant volume?
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
d) Gay-Lussac’s law

The ideal gas equation is given as PV = nRT. What does “R” represent in this equation?
a) Relative humidity
b) Universal gas constant
c) Gas density
d) Gas solubility

Answer
b) Universal gas constant

At constant temperature and pressure, the volume of a gas is directly proportional to the number of molecules. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
c) Avogadro’s law

The pressure exerted by a gas is due to the:
a) Mass of gas molecules
b) Velocity of gas molecules
c) Frequency of gas molecule collisions with the container walls
d) Size of gas molecules

Answer
c) Frequency of gas molecule collisions with the container walls

Which gas law combines Boyle’s law, Charles’s law, and Gay-Lussac’s law into one equation?
a) Ideal gas law
b) Combined gas law
c) Dalton’s law
d) Graham’s law

Answer
b) Combined gas law

The pressure of a gas is measured in:
a) Kelvin
b) Joules
c) Newtons
d) Pascals

Answer
d) Pascals

Which gas law describes the relationship between the pressure and volume of a gas at constant temperature?
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
a) Boyle’s law

According to Charles’s law, the volume of a gas is directly proportional to its:
a) Pressure
b) Temperature
c) Number of moles
d) Density

Answer
b) Temperature

The volume occupied by one mole of any gas at standard temperature and pressure (STP)
is approximately:
a) 22.4 L
b) 44.8 L
c) 11.2 L
d) 33.6 L

Answer
a) 22.4 L

The behavior of real gases deviates from ideal behavior at:
a) Low temperatures and high pressures
b) Low temperatures and low pressures
c) High temperatures and low pressures
d) High temperatures and high pressures

Answer
a) Low temperatures and high pressures

The temperature at which the gaseous state of a substance changes into its liquid state at atmospheric pressure is called:
a) Melting point
b) Boiling point
c) Condensation point
d) Sublimation point

Answer
b) Boiling point

The pressure exerted by a gas is directly proportional to its:
a) Volume
b) Temperature
c) Number of moles
d) Density

Answer
a) Volume

The density of a gas is inversely proportional to its:
a) Pressure
b) Temperature
c) Volume
d) Number of moles

Answer
c) Volume

The process of conversion of a gas into its liquid state is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
c) Condensation

The gas law that describes the behavior of real gases under high pressure and low temperature is:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Vander Waals equation

Answer
d) Vander Waals equation

The volume of a gas is directly proportional to its temperature in Kelvin at constant pressure. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
b) Charles’s law

The pressure of a gas is directly proportional to its temperature in Kelvin at constant volume. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
d) Gay-Lussac’s law

The temperature at which the solid state of a substance changes into its gaseous state at atmospheric pressure is called:
a) Melting point
b) Boiling point
c) Condensation point
d) Sublimation point

Answer
d) Sublimation point

The process of conversion of a solid directly into its gaseous state without passing through the liquid state is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
b) Sublimation

The total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of each gas. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Dalton’s law
d) Gay-Lussac’s law

Answer
c) Dalton’s law

The process of conversion of a liquid into its gaseous state at any temperature below its boiling point is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
a) Evaporation

The pressure exerted by a gas is directly proportional to its temperature in Kelvin at constant volume. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
d) Gay-Lussac’s law

The SI unit of temperature is:
a) Pascal
b) Kelvin
c) Joule
d) Watt

Answer
b) Kelvin

The temperature at which the liquid state of a substance changes into its solid state at atmospheric pressure is called:
a) Melting point
b) Boiling point
c) Condensation point
d) Sublimation point

Answer
a) Melting point

The process of conversion of a gas into its liquid state is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
c) Condensation

The pressure of a gas is directly proportional to its temperature in Kelvin at constant volume. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
d) Gay-Lussac’s law

The temperature at which the gaseous state of a substance changes into its solid state at atmospheric pressure is called:
a) Melting point
b) Boiling point
c) Condensation point
d) Sublimation point

Answer
d) Sublimation point

The process of conversion of a solid directly into its gaseous state without passing through the liquid state is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
b) Sublimation

The total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of each gas. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Dalton’s law
d) Gay-Lussac’s law

Answer
c) Dalton’s law

The process of conversion of a liquid into its gaseous state at any temperature below its boiling point is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
a) Evaporation

The pressure exerted by a gas is directly proportional to its temperature in Kelvin at constant volume. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
d) Gay-Lussac’s law

The SI unit of temperature is:
a) Pascal
b) Kelvin
c) Joule
d) Watt

Answer
b) Kelvin

The temperature at which the liquid state of a substance changes into its solid state at atmospheric pressure is called:
a) Melting point
b) Boiling point
c) Condensation point
d) Sublimation point

Answer
a) Melting point

The process of conversion of a gas into its liquid state is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
c) Condensation

The pressure of a gas is directly proportional to its temperature in Kelvin at constant volume. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
d) Gay-Lussac’s law

The temperature at which the gaseous state of a substance changes into its solid state at atmospheric pressure is called:
a) Melting point
b) Boiling point
c) Condensation point
d) Sublimation point

Answer
d) Sublimation point

The process of conversion of a solid directly into its gaseous state without passing through the liquid state is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
b) Sublimation

The total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of each gas. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Dalton’s law
d) Gay-Lussac’s law

Answer
c) Dalton’s law

The process of conversion of a liquid into its gaseous state at any temperature below its boiling point is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
a) Evaporation

The pressure exerted by a gas is directly proportional to its temperature in Kelvin at constant volume. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
d) Gay-Lussac’s law

The SI unit of temperature is:
a) Pascal
b) Kelvin
c) Joule
d) Watt

Answer
b) Kelvin

The temperature at which the liquid state of a substance changes into its solid state at atmospheric pressure is called:
a) Melting point
b) Boiling point
c) Condensation point
d) Sublimation point

Answer
a) Melting point

The process of conversion of a gas into its liquid state is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
c) Condensation

The pressure of a gas is directly proportional to its temperature in Kelvin at constant volume. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
d) Gay-Lussac’s law

The temperature at which the gaseous state of a substance changes into its solid state at atmospheric pressure is called:
a) Melting point
b) Boiling point
c) Condensation point
d) Sublimation point

Answer
d) Sublimation point

The process of conversion of a solid directly into its gaseous state without passing through the liquid state is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
b) Sublimation

The total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of each gas. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Dalton’s law
d) Gay-Lussac’s law

Answer
c) Dalton’s law

The process of conversion of a liquid into its gaseous state at any temperature below its boiling point is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
a) Evaporation

The pressure exerted by a gas is directly proportional to its temperature in Kelvin at constant volume. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
d) Gay-Lussac’s law

The SI unit of temperature is:
a) Pascal
b) Kelvin
c) Joule
d) Watt

Answer
b) Kelvin

The temperature at which the liquid state of a substance changes into its solid state at atmospheric pressure is called:
a) Melting point
b) Boiling point
c) Condensation point
d) Sublimation point

Answer
a) Melting point

The process of conversion of a gas into its liquid state is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
c) Condensation

The pressure of a gas is directly proportional to its temperature in Kelvin at constant volume. This statement represents:
a) Boyle’s law
b) Charles’s law
c) Avogadro’s law
d) Gay-Lussac’s law

Answer
d) Gay-Lussac’s law

The temperature at which the gaseous state of a substance changes into its solid state at atmospheric pressure is called:
a) Melting point
b) Boiling point
c) Condensation point
d) Sublimation point

Answer
d) Sublimation point

The process of conversion of a solid directly into its gaseous state without passing through the liquid state is called:
a) Evaporation
b) Sublimation
c) Condensation
d) Vaporization

Answer
b) Sublimation

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