Question

Give reason for the following observations.
(a) Naphthalene balls disappear with time without leaving any
solid​

Answer 1

Answer:

(a) Naphthalene balls undergo sublimation due to which it converts directly into vapours and disappear into air without leaving any solid.

(b) The particles of perfume diffuse rapidly into the air and its smell can be felt while sitting several metres away.

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Answer 2

Hello!!

This is because sublimation takes place. The naphthalene balls change directly in vapour form.

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