Question

Give a reason for the following statement.

Dissolving is a physical change.

Answer 1

Dissolving - The process in which a solid dissolve in liquid to form a homogeneous mixture is called dissolving.

• Example - Dissolving of sugar or salt in water.
• It is a physical change.
• No new substance is formed.
• When a solid is dissolved in a liquid then the solid breaks up into individual molecules which occupy the empty intermolecular space of the liquid molecules.
• It is a reversible change.

Hence, dissolving is a physical change.