Question

Crystallization is a better method or technique than sepatation for separating substance from a mixture.Give one reason to justify the ststement

Answer 1

Answer:

Crystallisation is the example of physical change.

Explanation:

As the salt from the sea obtained in this manner is not pure and the shape of the crystals can't be seen clearly. So it is the better method.

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.