Which of the substance is purified by sublimation?
(a) Benzoic acid
(b) Camphor
(c) Naphthalene
(d) All of these
Answers
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napthalene is purified
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Answer:(d) All of these is the correct answer.
Explanation:
Sublimation is the process in which a particular solid is converted into gas without changing into liquid.
It is a chemical process.
Camphor is a sublimating substance because when it is heated it turns into gas and not liquid.
Naphthalene sublimates at room temperature without converting into liquid. It is volatile.
Benzoic acid also gets converted into gas without converting into liquid after heating, thus it undergoes sublimation. It is non volatile.
Sublimation process is used for purification of benzoic acid, camphor and naphthalene.
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