Q. Which of the following oxoacid of sulphur has -O-O- linkage?
Solution:
Oxyacid
Structure
(1)

(2)
(Sulphurous acid)

(3)
(Sulphuric acid)

(4)

| Oxyacid | Structure | |
|---|---|---|
| (1) | ![]() |
|
| (2) | (Sulphurous acid) | ![]() |
| (3) | (Sulphuric acid) | ![]() |
| (4) | ![]() |