On oxidation of S 2 O 3 2 − by MnO 4 − in neutral aqueous medium, the oxidation state of S would change from:

Question

On oxidation of S 2 O 3 2 − by MnO 4 − in neutral aqueous medium, the oxidation state of S would change from:, +6 to -2, -2 to +2, -2 to +6, +4 to +6

MARKS App · Accepted Answer

In neutral aqueous medium, thiosulphate is oxidised almost quantitatively to sulphate: 8 Mn O 4 − + 3 S 2 O 3 2 − + H 2 O → 8 MnO 2 + 6 SO 4 2 − + 2 OH −

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