Chemistry - Metallurgy Question with Solution | TestHub

Smelting involves reduction with carbon so here it is case of smelting.
$\mathrm{F}{\mathrm{e}}_2{\mathrm{O}}_3+3\mathrm{C}\stackrel{\mathrm{H}\mathrm{e}\mathrm{a}\mathrm{t}}{\to }2\mathrm{F}\mathrm{e}+3\mathrm{C}\mathrm{O}$
Reactions given in options A and D involve calcination while that of in option C involves roasting.