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Q.
Which of the following oxoacid contains more than one $S-S$ bonds?
NTA AbhyasNTA Abhyas 2022
Solution:
Polythionic acid contains more than one $S-S$ bonds.
Dithionic $\left(\right.H_{2}S_{2}O_{6}\left.\right)$ acid and Thiosulphorus $\left(\right.H_{2}S_{2}O_{2}\left.\right)$ acid both have $1S-S$ bond while peroxydisulphuric acid do not have any $S-S$ bond.