Question

Explain Redox reaction

Answer 1

Redox Reaction

• The reaction in which oxidation and reduction reactions always occur simultaneously is called an oxidation-reduction reaction.
• The term 'Redox" is a short form of oxidation-reduction.
• Example: A reaction between Ferrous oxide with Aluminium

$\underset{\mathrm{Aluminum}}{2\mathrm{Al}\left(\mathrm{s}\right)}+\underset{\mathrm{Ferrous}\mathrm{oxide}}{{\mathrm{Fe}}_2{\mathrm{O}}_3\left(\mathrm{aq}\right)}\to \underset{\mathrm{Iron}}{2\mathrm{Fe}\left(\mathrm{s}\right)}+\underset{\mathrm{Aluminum}\mathrm{Oxide}}{{\mathrm{Al}}_2{\mathrm{O}}_3\left(\mathrm{aq}\right)}$

• The above reaction is a redox reaction as oxidation and reduction reactions are taking place simultaneously.
• ${\mathrm{Fe}}_2{\mathrm{O}}_3$ is reduced to $\mathrm{Fe}$ whereas $\mathrm{Al}$ is oxidized to ${\mathrm{Al}}_2{\mathrm{O}}_3$.
• Oxidizing agent: ${\mathrm{Fe}}_2{\mathrm{O}}_3$, Reducing agent: $\mathrm{Al}$

Therefore, the Redox reaction is a reaction in which oxidation and reduction both simultaneously occur.