Give reason: why does a naphthalene ball disappear if left in open for some days?

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Solution

Naphthalene balls are volatile substances that are sublime.
Naphthalene change from a solid to a gaseous state without coming into a liquid state, this process is called sublimation.
Hence, naphthalene balls disappear with time without leaving any solid.

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Similar questions

Why does the size of naphthalene balls decrease when left open?

Give reason for the following observations.

(a) Naphthalene balls disappear with time without leaving any solid.

(b) We can get the smell of perfume sitting several metres away.

(a)

(b)

Give reasons for the following.

The size of naphthalene balls decreases when left open for some time.

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