Chemistryhard · Past Paper
In the extraction of copper from copper pyrites, silica is added to the Bessemer converter to remove:
ACu2S
BFeS
CFeO
DCu2O
✓ Correct Answer: C — FeO
Silica (SiO2) acts as a flux to remove iron oxide (FeO) as iron silicate (FeSiO3) slag.
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