Questions
Which of the following statements about the advantage of roasting of sulphide ore before reduction is not true?
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By Expert Faculty of Sri Chaitanya
a
ΔfGΘ of the sulphide is greater than CS2 and H2S
b
ΔfGΘ 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
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Correct option is D
ΔfGΘ for sulphides >ΔfGΘ for CS2 and H2S and thus C and H2cannot reduce metal sulphide.Similar Questions
The phenomenon of removing layers of basic oxides from metals before electroplating is called
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