Question

WHY IS CRSTALISATION BETTER THAN EVAPORATION

Answer 1

Crystallization is better than evaporation as-

1)Some solids decompose or some like sugar may get charred on heating to dryness

2)Some impurities may remain dissolved in the solution even after filtration. On evaporation these contaminated the solid

Answer 2

Why crystalization is better than evaporation?

1. It occurs on the entire surface.
2. we get solid in the pure crystallized form.
3. The soluble impurities get removed in this process.
4. It doesn't require very high temperature conditions.