Which of the following statements are true for crystallisation-It involves formation of new substances-It is used to separate solutes soluble in a solvent-It is used to obtain large crystals of solute-It is an example of a physical change-

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Question

Which of the following statements are true for crystallisation?

It involves formation of new substances.

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It is used to separate solutes soluble in a solvent.

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It is used to obtain large crystals of solute.

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It is an example of a physical change.

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Solution

The correct options are
B It is used to separate solutes soluble in a solvent.
C It is used to obtain large crystals of solute.
D It is an example of a physical change.
Crystallisation is the process of separating a soluble solid from the solution by heating or evaporating the solvent. It can only be used for the substances which are soluble in a solvent. It is a physical change as no new substance is formed. Also, we obtain large crystals of solute after crystallisation.

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