Question

Which of the following oxoacid of sulphur has -O-O- linkage?

• A. $H_2SO_3$, sulphurous acid
• B. $H_2SO_4$ sulphuric acid
• C. $H_2S_2O_8$, peroxodisulphuric acid
• D. $H_2S_2O_7$, pyrosulphuric acid

Answer 1

Answer: (C)

$H_2S_2O_8$, peroxodisulphuric acid

Answer 2

Oxyacid Structure
(1) $H_{2}S_{2}O_{7}$
(2) $H_{2}SO_{3}$ (Sulphurous acid)
(3) $H_{2}SO_{4}$ (Sulphuric acid)
(4) $H_{2}S_{2}O_{8}$