Q.
How many of these acids have $S-S$ bonds?
$H_{2}S_{2}O_{3},H_{2}S_{2}O_{6},H_{2}S_{2}O_{7},H_{2}S_{2}O_{8},H_{2}SO_{5},H_{2}S_{n + 2}O_{6}$ (polythionic acid).
NTA AbhyasNTA Abhyas 2020The p-Block Elements - Part2
Solution: