Question

Name one property shown by napthalene not by sodium chloride

Answer 1

Naphthalene has a physical property called sublimation due to which it sublimes or volatile naturally at room temperature in to air.

But sodium chloride, NaClhas no sublimation property.

By the way, naphthalene is a solid as well as in vapour form at room temperature.

Naphthalene has insect repellent property and used as moth balls. 

Answer 2

One proper which Naphthalene have but NaCl don't have is the property of $\bf{Sublimation}$.

Where which Napthalien can sublime easily which is not possible in NaCl.