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  4. In dithionous acid, the overall oxidation state of sulphur is .

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Q. In dithionous acid, the overall oxidation state of sulphur is ____.

NTA AbhyasNTA Abhyas 2022

Solution:

Dithionous acid is $H_{2}S_{2}O_{4}$
Sum of the oxidation states of elements = charge of the molecule.
$2+2x-8=0$
$x=3$