A) roasting, smelting, electrolysis
B) roasting, calcination, smelting
C) calcination, auto-reduction, bassemerisation
D) none of the above.
Correct Answer: A
Solution :
[a] : The conversion of metal sulphide to metal oxide involves the process of roasting (i.e., x is roasting). The metal oxides can then be converted to impure metal by reduction, i.e., 'y is smelting. The conversion of impure metal to pure metal involves a process of purification. Thus, it is electrolysis.You need to login to perform this action.
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