Which of the following statements, about the advantage of roasting of sulphide ore before reduction is not true gt

Options

A. Roasting of the sulphide to the oxide is thermodynamically feasible
B. Carbon and hydrogen are suitable reducting agents for metal sulphides
C. The `Delta_(f)G^(theta)` of the sulphide is greater than those for CS2 and H2S
D. The `Delta_(f)G^(theta)` is negative for roasting for sulphide ore to oxide

Answer

B