Crystallisation is a better technique than simple evaporation. Give one reason to justify the statement.

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(N/A) Crystallisation is preferred because:
$1$. Some solids decompose or get charred (e.g.,sugar) upon heating to dryness during evaporation.
$2$. Some impurities may remain dissolved in the solution even after evaporation,which contaminates the solid product. Crystallisation helps in obtaining a purer form of the solid.

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