The correct order of N-compounds in its decreasing order of oxidation states is :
1.
2.
3.
4.
Among the following the correct order of acidity is-
1. HClO < HClO2< HClO3< HClO4
2. HClO2< HClO < HClO3< HClO4
3. HClO4< HClO2< HClO < HClO3
4. HClO3< HClO4< HClO2< HClO