Oxyacid Structure
(1) \(H_{2}S_{2}O_{7}\)
(2) \(H_{2}SO_{3}\) (Sulphurous acid)
(3) \(H_{2}SO_{4}\) (Sulphuric acid)
(4) \(H_{2}S_{2}O_{8}\)
The number of oxygen atoms present in chemical formula of fuming sulphuric acid is _______.
Identify the major product C formed in the following reaction sequence: