Why is rusted iron an example of an oxidation–reduction reaction? electrons are exchanged?

Answer : The rusted iron is an example of an oxidation–reduction reaction because electrons are exchanged.

Explanation :

Iron rusting : It is a chemical process in which the an iron nail react with water and oxygen to give iron oxide as a product. Rusting of iron is an oxidation-reduction reaction in which iron losses electrons to oxygen atom.

Oxidation-reduction reaction : It is a reaction in which oxidation and reduction reaction occur simultaneously.

Oxidation reaction : It is the reaction in which a substance looses its electrons. In this oxidation state increases.

Reduction reaction : It is the reaction in which a substance gains electrons. In this oxidation state decreases.

The balanced chemical reaction for rusting of irons is,

Half reactions of oxidation and reduction are :

Oxidation :

Reduction :

From this reaction we conclude that the electrons are getting transferred from iron to oxygen.

Hence, the rusted iron is an example of an oxidation–reduction reaction because electrons are exchanged.

the awnser is group 12