Question

How is corrosion a redox reaction​

Answer 1

Corrosion is the formation of compounds on the surface of a metal.Corrosion of metal is a redox reactionin which occur when a metal loses electron and is oxidised to form the metal ion.

Answer 2

corrosion is just similar to the redox reaction because it also includes rusting of iron and in both this matter metal reacts with the substance present at the surrounding.