Question

what is corrosion? and the rusting ​

Answer 1

Corrosion:

Some metals react with oxygen , moisture and pollutants in the atmosphere and form compounds on their surface. This is known as corrosion.

Rusting: Iron reacts with oxygen in the presence of water or moisture to form iron oxide. Iron oxide is commonly known as rust.

Answer 2

Corrosion can occur when the substance is exposed to air or some chemicals. Rusting mainly occurs when a metal is exposed to air and moisture. Corrosion results in the formation of the oxides of metal or salts. Only iron oxide is formed when rusting takes place. ... Rust or rusting can affect only iron and its alloys.