Which one of the following reactions does not occur during extraction of copper?

\(2{\text{Cu}}_{2}\text{S}+3{\text{O}}_{2}\to 2{\text{Cu}}_{2}\text{O}+2{\text{SO}}_{2}\)

\(2\text{FeS}+3{\text{O}}_{2}\to 2\text{FeO}+2{\text{SO}}_{2}\)

\(\text{CaO}+{\text{SiO}}_{2}\to {\text{CaSiO}}_{3}\)

\(\text{FeO}+{\text{SiO}}_{2}\to {\text{FeSiO}}_{3}\)