Question

Give reason : Naphthalene balls disappear with time without leaving any solid

Answer 1

Because it becomes in vapour this is the reason

Answer 2

Answer:Because napthalene is a compound which goes under sublimation. So it does not leave any residue behind

Explanation: Sublimation is the process by which a solid substance converts directly into gas so therefore no residue i.e. Liquid or solid is left behind

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