Question

Napthalene Balls disappear with time without leaving any solid​

Answer 1

Answer:

Naphthalene balls undergo sublimation due to which it converts directly into vapours anddisappear into air without leaving any solid.

Answer 2

Yes,

This happens because due to sublimation of the naphthalene ball. These balls changes into vapour form directly form solid state. Another example of sublimation is dry ice which is a compressed form of carbon dioxide.

Hope this answer will help you