What is rusting? How do we …

Rusting: If articles made of iron are left in open air for some time, they get coated with a brown powdery substance, called rust. This process of iron changing into rust is called rusting.
Rusting is a slow oxidation process, where metal slowly reacts with atmospheric oxygen to form Metal oxide.
Rusting can be prevented by adopting any of these methods:

• By painting on the surface of iron prevents the direct contact of the surface with the atmosphere. Thus prevents the reaction between Iron surface and oxygen of the atmosphere.
• By oiling the surface of Iron.
• Using anti-rust solutions also can prevent the rusting process. In general alkaline solutions of Chromate salts and Phosphate salts are used as anti-rust solutions.

     •  Galvanisation - It is the process of depositing a layer of zinc on iron.
     •  Alloy formation - Stainless steel is an alloy.