Question

Which process is used in smelting during metallurgy of copper?

• A. Self reduction of copper
• B. $Cu_2S$ is converted into $Cu_2O$
• C. FeS is converted into FeO
• D. Reduction of Fe

Answer 1

Answer: (C)

FeS is converted into FeO

Answer 2

Smelting of Cu results in slag formation and matte formation. ${FeS + Cu2O -> FeO + Cu2S}$ ${FeO + SiO2 ->}$ $\underset{\text{(slag)}}{ {FeSiO3}}$