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Question
Which oxyacid of sulphur contains an S-S single bond?
Options
Oleum
Marshall's acid
Dithionic acid
Thiosulphuric acid
MCQ
Solution
Dithionic acid
Explanation:
\[\begin{array}{cc}\\
\ce{O\phantom{..}O}\\
||\phantom{..}||\\
\ce{HO-S-S-OH}\\
||\phantom{..}||\\
\ce{O\phantom{..}O}\\
\ce{\text{Dithionic acid}}
\end{array}\]
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