Question

State the advantage of crystallisation over evaporation

Answer 1

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Crystallization:  The process of forming or making something form into crystals.

Advantages of crystallization:

1. In evaporation the soluble impurities (and insoluble impurities sometimes) are mixed but crystallization process separates the soluble and insoluble impurities from the solid.

2. In evaporation the resultant object obtained is in powdery form but in crystallization it is in a pure crystal state.

3. In evaporation, the solution is heated to dryness, so some solids like sugar may get charred but it is not so in the process of crystallization.

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