A sulphide ore is first converted into its ox | vedclass

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(C) The reduction of metal sulphides to metals is thermodynamically unfavorable compared to the reduction of metal oxides. Metal oxides are generally

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the enthalpy of formation of $CO_2$ is more than that of $CS_2$

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(C) The reduction of metal sulphides to metals is thermodynamically unfavorable compared to the reduction of metal oxides. Metal oxides are generally easier to reduce using common reducing agents like $C$ or $CO$ because the formation of $CO_2$ is highly exothermic. In contrast,the reduction of metal sulphides is difficult and often requires more energy. Therefore,sulphide ores are first converted into metal oxides through a process called roasting,which makes the subsequent reduction to metal much more efficient.

$A$ sulphide ore is first converted into its oxide before reduction. This is done because

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