Question

The chemical process in the production of steel from haematite ore involves 

(a) oxidation 

(b) reduction

(c) oxidation followed by reduction

(d) reduction followed by oxidation

Answer 1

(c) oxidation followed by reduction

The chemical process in the production of steel from haematite ore involves oxidation followed by reduction.

Ferrous oxide is oxidized to ferric oxide.

4FeO + O₂​ → 2Fe₂​O₃

​Ferric oxide is reduced to iron metal.

\(Fe_2O_3+3CO\xrightarrow{400°C-700°C}2Fe+3CO_2\)