Question

why does naphthalene balls disappear with time without leaving any solid?

Answer 1

Because it goes under sublimation due to which it converts directly into vapours and disappear into air without leaving any solid.

Answer 2

Hii friend,
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Here is your answer
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Napthlene balls under go sublimation. Sublimation is the process in which a solid turn into gaseous state without any Liquid interference

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