Question

What is corrosion ? Explain the electrochemical theory of rusting of iron and write the reactions involved in the rusting of iron.

Answer 1

corrosion means the process in which a metal is destroyed gradually by the action of air, moisture or a chemical like an acid on its surface is called corrosion.

Answer 2

Answer:

Corrosion is a natural process that converts a refined metal into a more chemically-stable form such as oxide, hydroxide, or sulfide. It is the gradual destruction of materials (usually a metal) by chemical and/or electrochemical reaction with their environment.

4Fe + 3O2 + 6H2O → 4Fe(OH)3