Give a reason for the following observation.
Naphthalene balls disappear with time without leaving any solid.

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Solution

Naphthalene ball is a solid substance that directly converts into it's vapours without changing into liquid. This process is known as sublimation. Thus, naphthalene balls disappear with time without leaving any solid.

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Give reason for the following observations.

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Give a 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 meters away. [3 MARKS]

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