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

Question

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

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 feasible
D. Carbon and hydrogen are not suitable reducing agents for metal sulphides.

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

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.

4 views Answered 2023-02-05 15:29