The conversion of ferric chloride (FeCl₃) to ferrous chloride (FeCl₂) is not specifically called "degradation." Instead, it is a type of chemical reaction known as a reduction reaction. In this process, ferric chloride (FeCl₃), which contains iron in the +3 oxidation state, gains electrons and is reduced to ferrous chloride (FeCl₂), where iron is in the +2 oxidation state. The reduction reaction involves the gain of electrons, leading to a decrease in the oxidation state of iron.

The Constitution of India describes India as the Union of States. It is because our Constitution delegates powers to both Centre as well as State, yet more power lies with the Centre. After independence, India, as it is now, was formed by the decision of the princely states, who decided to join India.