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1. |
Which of the following statements, about the advantage of roasting of sulphide ore before reduction is not true? |
A. | The \[\Delta G_{f}^{{}^\circ }\] of the sulphide is greater than those for \[C{{S}_{2}}\] and \[{{H}_{2}}s\]. |
B. | The \[\Delta G_{f}^{{}^\circ }\] is negative for roasting of sulphide ore to oxide. |
C. | Roasting of the sulphide to the oxide is thermodynamically feasible. |
D. | Carbon and hydrogen are suitable reducing agents for reduction of metal sulphides. |
Answer» E. | |