In mildly alkaline medium, thiosulphate ion is oxidized by MnO 4 - to " A " . The oxidation state of sulphur in " A " is_

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In mildly alkaline medium, thiosulphate ion is oxidized by

{MnO}_{4}^{-}

to

" A "

. The oxidation state of sulphur in

" A "

is_

ChemistryRedox ReactionsJEE MainJEE Main 2021 (26 Feb Shift 2)

Solution:

2444 Upvotes Verified Answer

The correct answer is: 6

${MnO}_{4}^{-} + S_{2} O_{3}^{2 -} \to {MnO}_{2} + {SO}_{4}^{2 -}$

Oxidation state of $' S'$ in ${SO}_{4}^{2 -}$

$= + 6$

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