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An Intiative by Sri Chaitanya
a
ΔGf∘of the sulphide is greater than CS2 and H2S
b
ΔGf∘is negative for roasting of sulphide ore to oxide
c
Roasting of the sulphide to oxide is thermodynamically feasible
d
Carbon and hydrogen are suitable reducing agents for metal sulphides
answer is D.
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