Question

Naphthalene balls get smaller in size when kept exposed for a few days, due to sublimation.

• A. True
• B. False

Answer 1

The correct option is

A

True

It is true. Naphthalene balls get smaller in size when kept exposed for a few days. This happens because naphthalene balls undergo sublimation, i.e., they change their state from solid to gas.

Naphthalene balls are highly volatile solids and hence changes from solid to gaseous state directly without changing to liquid state and thus they disappear when kept exposed for few days