Chemistry - Metallurgy Question with Solution | TestHub

The important ore of tin is cassiterite $\left({\mathrm{SnO}}_2\right)$. Tin is extracted from cassiterite ore by carbon reduction method in a blast furnace. ${\mathrm{SnO}}_2+2\mathrm{C}\to \mathrm{Sn}+2\mathrm{CO}$ The product often contain traces of iron which is removed by blowing air through the melt to oxidise to $\mathrm{FeO}$ which then floats to the surface. $2\mathrm{Fe}+{\mathrm{O}}_2\to 2\mathrm{FeO}$