States Of matter

Naphthalene balls directly change into?

• Liquid state

• solid state

• gaseous state

• they remain the same.

Matter change from one form to another on Heating or?

Changing of water vapour to into liquid is called?

• condensation

• Sublimation

• Evaporation

• precipitation

Changing of liquid into solid is called?

• Condensation

• Sublimation

• Freeezing

• None of these

Sand and chalk are____in water?

Oil and water are?

• soluble liquids

• insoluble liquids

• miscible liquids

• immiscible liquids

Facts about gas

Fact 1: gas has a fixed shape.

Fact 2: gas does not have a fixed volume.

• Both facts are correct

• Both facts are wrong

• Fact 1 is correct and Fact 2 is wrong

• Fact 1 is wrong and Fact 2 is correct

Changing of solid to gaseous state is called?

• Evaporation

• Condensation

• Sublimation

• None of these

Why do solids have a fixed shape and a definite volume?

• Bcs they are not compressible

• Bcs they are tightly packed

• Bcs they have no space in between

• These are not the reasons

A change in which a physical properties of a substance changes is called?