Question

) Naphthalene balls disappear with time without leaving any solid. Give an example
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Answer 1

Answer:

Naphthalene balls disappear with time without leaving any solid, because naphthalene balls sublime and directly changes into vapour state without leaving any solid.

Answer 2

Answer:

a) Naphthalene balls disappear with time without leaving any solid, because naphthalene balls sublime and directly changes into vapour state without leaving any solid.