Q.

In the extraction of copper from its sulphide ore, the metal finally obtained by the reduction of cuprous oxide with

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a

copper (I) sulphide (Cu2S)

b

sulphur dioxide ( SO2)

c

iron sulphide (FeS)

d

carbon monoxide (CO)

answer is A.

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Detailed Solution

In the extraction of copper from its sulphide ore, when ore is subjected to roasting, some of it oxidised to Cu2O which reacts with the remaining Cu2S (sulphide ore) to givecopper metal.                Cu2S+2Cu2O⟶6Cu+SO2↑In this process Cu2S behaves as reducing agent.
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