Question

what type of materials can be separated by using hand picking​

Answer 1

To separate sand and salt, we dissolve the mixture in water and then filter it. In this way salt get dissolved in water while sand we get as residue. Thus, we can say handpicking is used for separating slightly larger sized impurities such as pieces of dirt, stones, husk from wheat, rice, pulses etc.

Answer 2

Thus, we can say handpicking is used for separating slightly larger sized impurities such as pieces of dirt, stones, husk from wheat, rice, pulses etc. it can be used for those mixtures as well which differ in color shape or weight as well.