Explain corrosion with the help of suitable example. Write methods to prevent it.
Answers
Explanation:
Corrosion is a natural process that converts a refined metal into a more chemically-stable form such as oxide, hydroxide, or sulfide. It is the gradual destruction of materials (usually a metal) by chemical and/or electrochemical reaction with their environment.
Rusting of iron and steel is perhaps the most common example of metallic corrosion. There are many well-known examples such as the rusting of exhaust systems and bodies of cars, water pipes and various types of structural steel-work. There are other examples of corrosion in everyday life.
Corrosion of the metal can be prevented if the contact between metal and air is cut off. Corrosion of a metal is prevented by coating with something which does not allow moisture and oxygen to react with it. A layer of oil or paint or Grease is applied on the surface of a metal to prevent corrosion.
Answer:
Oxidation of metal.
Metals are eaten up by reaction with water.
Eg- rushing of iron brown copper change into black copper oxide