A) \[\Delta G_{f}^{o}\]of the sulphide is greater than \[C{{S}_{2}}\]and\[{{H}_{2}}S\]
B) \[\Delta G_{f}^{o}\]is negative for roasting of sulphide ore to oxide
C) Roasting of the sulphide to oxide is ther-modynamically feasible
D) Carbon and hydrogen are suitable reducing agents for metal sulphides
Correct Answer: D
Solution :
\[\Delta {{G}_{f}}^{o}\]for sulphides\[>\Delta {{G}_{f}}^{o}\]of \[C{{S}_{2}}\]and \[{{H}_{2}}S,\]and thus, C and\[{{H}_{2}}\]cannot reduce metal sulphide.
You need to login to perform this action.
You will be redirected in
3 sec
