Justify that the following reactions are redox reactions:
Fe₂O₃(s) + 3CO(g) → 2Fe(s) + 3CO₂(g)

Question

Justify that the following reactions are redox reactions: Fe 2 O 3 (s) + 3CO(g) → 2Fe(s) + 3CO 2 (g)

Philoid · Accepted Answer

Let us write the oxidation number of each element involved in the given reaction as:

In Fe₂O_3, Fe = + 3 and O = -2

In CO, C = + 2 and O = -2

In CO₂, C = + 4 and O = -2

In Fe, Fe = 0

Here, the O.N. of Fe decreases from + 3 in Fe₂O₃to 0 in Fe i.e. Fe₂O₃ is reduced to Fe. On the other hand, the O.N. of C increases from + 2 in CO to + 4 in CO_2. Hence, the given reaction is a redox reaction.

Justify that the following reactions are redox reactions:Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g)

Justify that the following reactions are redox reactions:
Fe₂O₃(s) + 3CO(g) → 2Fe(s) + 3CO₂(g)