Question

Prior to reduction, metal sulphide and carbonates are converted into oxides because:

• A. carbonates, sulphides are heavy molecules
• B. it is easier to obtain a metal from its oxide as compared to its sulphides and carbonates
• C. it is easy to heat oxide compared to sulphides and carbonates
• D. both $A$ and $B$

Answer 1

The correct option is B it is easier to obtain a metal from its oxide as compared to its sulphides and carbonates

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 to metal oxides.