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  • When copper ore is mixed with silica, in a reverberatory furnace copper matte is produced. The copper matte contains ____________. (i) sulphides of copper (II) and iron (II) (ii) sulphides of copper (II) and iron (III)

When copper ore is mixed with silica, in a reverberatory furnace copper matte is produced. The copper matte contains ____________.

(i) sulphides of copper (II) and iron (II)

(ii) sulphides of copper (II) and iron (III)

(iii) sulphides of copper (I) and iron (II)

(iv) sulphides of copper (I) and iron (III)

Answers (1)

The answer is the option (iii). Inside a reverberatory furnace iron silicate on mixing copper ore with silica in a reverberatory furnace, iron silicate comes off as slag producing copper in the form of copper matte containing copper sulphide [Cu_{2}S(I)] and some iron sulphide [FeS(II)].

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