Question

Take a ball of camphor, or naphthalene balls in a saucer and keep it open all day. Observe that saucer at night. Record your observations. Why did this happen?​

Answer 1

(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

The naphthalene ball converts quickly in to the gaseous state by being intimate into small particles That is why when we keep it in the clothes it dissappear

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