Question

give reson:

1. ionic compounds have higher melting point and higher boiling poin

2.prior to reduction the metal sulphides and carbonates must be converted into metal oxides for extracting metals

Answer 1

2. It is easier to obtain a metal from its oxide, as compared to its sulphides and carbonates. Therefore, prior to reduction, the metal sulphides and carbonates must be converted into metal oxides for extracting metals.