The sulphide ore of copper are heated in reverberatory furnace. If the ore
Channel: Doubtnut
Date: 2020-04-26

The sulphide ore of copper are heated in reverberatory furnace. If the ore contains iron, it is mixed with silica `(SiO_(2))` before heating. Iron oxide slags off as iron silicate then `SiO_(2)` acts as a: