The molecular formula of $H_{2} S_{2} O_{2}$ represents which oxoacid among the following?

Hydrosulphurous acid

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Thiosulphurous acid

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Sulphuric acid

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Pyrosolphurous acid

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Solution

The correct option is B Thiosulphurous acid
$H_{2} S_{2} O_{2}$ represents thiosulphurous acid in which one $S = S$ is present.

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