The rusting of an iron object is called :(a) corrosion and it is a physical as well as a chemical change(b) dissolution and it is a physical change(c) corrosion and it is a chemical change(d) dissolution and it is a chemical change

Correct Answer: (c) corrosion and it is a chemical change

Explanation: Rusting of iron is called corrosion and it leads to the formation of a new compound. Hence, it is a chemical change. The action of air and moisture on iron converts it to its oxide. This process is known as Rusting.