In the extraction of iron from Haematetie, the reaction, FeO + C → Fe + CO occurs in temperature range of

X = 2Fe(s) + O2(g) → 2FeO(s)Y = 2CO(g) + O2(g) → 2CO2(g)Z = 2C(s) + O2(g) → 2CO(g)Thus “CO” acts like reductant to FeO at low ‘T’Thus “C” acts like reductant to FeO at High ‘T’