Question

Crystallisation is a better techniques than simple evaporation give 2 reason

Answer 1

crystallisation is better than evaporation becoz:

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

2) crystallisation gives a pure form of the solio

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.