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Question

Chemistry Question on d -and f -Block Elements

An acidified solution of potassium permanganate oxidizes

A

Sulphates

B

Sulphites

C

Nitrates

D

Ferric salts

Answer

Sulphites

Explanation

Solution

An acidified solution of potassium permanganate will oxidise sulphide to sulphate. Oxidation of Fe3+,SO42orNO3 {Fe^{3+} , SO^{2-}_4 \, or \, NO^-_3} is not possible.