Question

What is the process of corrosion and how much time take for it?Should u answer me correct!​

Answer 1

• Corrosion is a natural process that converts a refined metal into a more chemically stable form such as oxide, hydroxide, carbonate or sulfide.

• It means electrochemical oxidation of metal in reaction with an oxidant such as oxygen or sulfates.

• A piece of iron will corrode rapidly when it is in contact with both air and water (may take 7–8 days to show the sign of corrosion) .

Answer 2

Explanation:

Corrosion is the process in which metals are eaten up gradually by the action of air,moisture or a chemical (such as an acid) on their surface. Rusting of iron metal is the most common form of corrosion.

During the corrosion of iron, iron metal is oxidised by the oxygen of an air in the presence of water (moisture) to form hydrated iron oxide called rust.

4Fe+3O2+2xH2O→2Fe2O3.xH2O