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Question
Which of the following statements, about the advantage of roasting of sulphide ore before reduction is not true?
Options
`Δ"G"_"f"^0` of sulphide is greater than those for CS2 and HS2.
`Δ"G"_"r"^0` is negative for roasting of sulphide ore to oxide.
Roasting of the sulphide to its oxide is thermodynamically feasible.
Carbon and hydrogen are suitable reducing agents for metal sulphides.
Solution
Carbon and hydrogen are suitable reducing agents for metal sulphides.
Explanation:
Both C and H2 are not suitable for reducing sulphide are because `Δ"G"_"f"^0` of metal sulphide is more than that of CS2 and H2S which be formed as result of reduction.
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RELATED QUESTIONS
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