Question

give reason for-
Naphthalene balls disappeared with time without leaving any solid​

Answer 1

Answer:

Naphthalene balls disappear with time without leaving any solid because they undergo sublimation i.e., they directly change into vapour without passing through the liquid state.

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Answer 2

Answer:

Naphthalene is a votile solid therefore it change into vapour completely and no solid us left. Sublimation of napthelene occurs