Saved Bookmarks
| 1. |
Which of the following statements about the advantage of roasting of sulphide ore before reduction is not true ?A. The `Delta G^(@)` of the sulphide is greater than those of `CS_(2) " and " H_(2)S`.B. The `DeltaG^(@)` is negative for roasting of sulphide ore to oxide.C. Roasting of sulphide to oxide is thermodynamically feasibleD. Carbon and hydrogen are not suitable reducing agents for metal sulphides. |
|
Answer» Correct Answer - D Both C and `H_(2)` are not suitable for reducing sulphide ore because `Delta_(f)G^(@)` of metal sulphide is more than that of `CS_(2) " and H_(2)S` which will be formed as result of redcution. |
|