Which of the following statements, about the advantage of roasting of sulphide ore before reduction, is not trué? roasting of the sulphide to the oxide is thermodynamically feasible, carbon and hydrogen are suitable reducing agents for metal sulphides, The `Delta_f G^o` of the sulphide is greater than thóse for `CS_2 and H_2 S` , The `Delta_f G^o` is negative for roasting of sulphide ore to oxide.

Options

A. roasting of the sulphide to the oxide is thermodynamically feasible
B. carbon and hydrogen are suitable reducing agents for metal sulphides
C. beginaligned
The Delta_f G^o of the sulphide is greater than
thóse for CS_2 and H_2 ~S
endaligned
D. The 'Delta_f G^dotalpha' is negative for roasting of '.su]'
phide ore to oxide.

Answer

B