Question

2CuFeS2 + O2--> ? + 2FeS +SO2

1 point

Cu2O

Cu2S

2CuS

2CuO​

Answer 1

Answer:

Roasting

Explanation:

Roasting is the process in which the ore in strongly heated in the presence of excess air.

In the extraction of copper consequent to crushing and concentration of the ore, it is heated in a reverberatary furnace.

Copper pyrites is oxidised and a part of sulphur in the ore is removed as sulphur dioxide.

2CuFeS

2

+O

2

→Cu

2

S+2FeS+SO

2

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Copper pyrites

Answer 2

2CuFeS2 + O2—> Cu2S+ 2FeS + SO2