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General Principles And Processes Of Isolation Of Elements

Question
CBSEENCH12011374
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Which of the following statements, about the advantage of roasting of sulphide ore before reduction is not true?

  • Carbon and hydrogen are suitable reducing agent for metal sulphides

  • The ΔfGo of the sulphide is greater than those for CS2 and H2S

  • The ΔfGo  is negative for roasting of sulphide ore to oxide

  • Roasting of the sulphide to the oxide is thermodynamically feasible

Solution

A.

Carbon and hydrogen are suitable reducing agent for metal sulphides

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

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