Properties of Matter Quiz

What is the SI unit of mass?

• Gram

• Kilogram

• Pound

• Liter

Answer explanation

The SI unit of mass is the Kilogram, making it the correct choice among the options provided.

What is the boiling point of water in Fahrenheit scale?

• 100°F

• 212°F

• 0°F

• 32°F

Answer explanation

The boiling point of water in Fahrenheit scale is 212°F, which is the correct choice among the options provided.

The process of conversion of a solid into a liquid is called:

• Sublimation

• Evaporation

• Condensation

• Melting

Answer explanation

The process of conversion of a solid into a liquid is called melting, making it the correct choice among the options provided.

What is the process called when a liquid changes into a gas?

• Melting

• Freezing

• Condensation

• Vaporization

Answer explanation

The process called when a liquid changes into a gas is called vaporization, making it the correct choice among the options provided.

The process of burning is a _________ change.

• Physical

• Chemical

Answer explanation

The process of burning involves a chemical change, where new substances are formed through a chemical reaction.

The process of conversion of a liquid into a solid is called:

• Condensation

• Melting

• Freezing

• Evaporation

Answer explanation

The process of conversion of a liquid into a solid is called freezing, which is the correct choice among the options provided.

The process of conversion of a gas into a liquid is called:

• Condensation

• Sublimation

• Evaporation

• Freezing

Answer explanation

The process of conversion of a gas into a liquid is called condensation, where the gas loses heat energy and transforms into a liquid state.

Which of the following substances has the highest melting point?

• Ice

• Lead

• Salt

• Wax

Answer explanation

Salt has the highest melting point among the given substances. It requires a higher temperature to melt compared to ice, lead, and wax.

What is the chemical formula of oxygen gas?

• O2

• O3

• H2O

• CO2

Answer explanation

The chemical formula of oxygen gas is O2, which represents a molecule composed of two oxygen atoms bonded together.

What is the chemical formula of water?

• H

• O

• H2O

• HO

Answer explanation

The chemical formula of water is H2O, which consists of two hydrogen atoms and one oxygen atom.