For the metallurgical process of which of the ores calcined ore can be reduced by carbon?
Haematite and calamine are the only oxides present. Oxides can be reduced easily by carbon
Reduction of haematite:
2Fe2O3(s) + 3C(s) → 4Fe(l) + 3CO2(g)
Reduction of calamine:
ZnCO3(s)→ ZnO(s) + CO2(g)