Basicity of sulphurous acid and sulphuric acid are

Iron and sulphuric acid

Which are the anhydrides of sulphurous acid and sulphuric acid ?

Fuming sulphuric acid is

Valence of sulphur in sulphuric acid is

Compounds of nitrogen, phosphorus and sulphur such as ammonia, phosphoric acid and sulphuric acid are used In fertilizer industry:- Describe contact process for the manufacture of sulphuric acid.

The valency of sulphur in sulphuric acid is

In which of the following oxy acids of sulphur the oxidation state of at least one sulphur is +5 Pyro sulphurous acid Thio sulphuric acid Dithionic acid Pyro sulphuric acid

Calculate the percentage of sulphur in sulphuric acid .