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Question: Answered & Verified by Expert
In the laboratory, manganese (II) salt is oxidise to permanganate ion in aqueous solution by
Chemistryd and f Block ElementsJEE Main
Options:
  • A hydrogen peroxide
  • B conc. nitric acid
  • C peroxy disulphate
  • D dichromate
Solution:
1363 Upvotes Verified Answer
The correct answer is: peroxy disulphate
In laboratory, manganese (II) ion salt is oxidised to permanganate ion in aqueous solution by peroxodisulphate.
$2 \mathrm{Mn}^{2+}+\underset{\text{peroxodisulphate ion}}{5 \mathrm{~S}_2 \mathrm{O}_8^{2-}}+8 \mathrm{H}_2 \mathrm{O} \rightarrow$ $2 \mathrm{MnO}_4^{-}+10 \mathrm{SO}_4^{2-}+16 \mathrm{H}^{+}$

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