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Question

The process through which Naphthalene balls disappear with time without leaving any solid residue is called________


A

Freezing

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B

Melting

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C

Deposition

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D

Sublimation

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Solution

The correct option is D

Sublimation


The process in which a solid directly changes into a gaseous state on heating is called sublimation. Naphthalene is a volatile solid and has a tendency to sublime. Hence it changes into a vapor state completely and no solid is left.


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