Question

State two essential conditions for rusting of iron. List two methods of protecting iron from rusting?

Answer 1

The two essential conditions of rusting iron are the presence of oxygen, and the presence of water whose PH level is slightly acidic.

Grease coating can be given t prevent the iron from rusting as it blocks the oxygen and water to get in contact with the metal.

Galvanization can also be done.

Answer 2

1.Presence of oxygen (of air)

2.Presence of water or water vapour (moisture).