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BITSAT 2023Paper 1
Exam
BITSAT
Year
2023
Paper
Paper 1
Subject
Chemistry
Chapter
d and f Block Elements

BITSAT 2023 · Paper 1 · Chemistry · d and f Block Elements

In the laboratory, manganese (II) salt is oxidise to permanganate...

In the laboratory, manganese (II) salt is oxidise to permanganate ion in aqueous solution by

Options

  1. Ahydrogen peroxide
  2. Bconc. nitric acid
  3. Cperoxy disulphate
  4. Ddichromate

Correct answer

C. peroxy disulphate

Step-by-step solution

In laboratory, manganese (II) ion salt is oxidised to permanganate ion in aqueous solution by peroxodisulphate.
2Mn2++5S2O82−peroxodisulphate ion+8H2O→2MnO4−+10SO42−+16H+2 \mathrm{Mn}^{2+}+\underset{\text{peroxodisulphate ion}}{5 \mathrm{ S}_2 \mathrm{O}_8^{2-}}+8 \mathrm{H}_2 \mathrm{O} \rightarrow2 \mathrm{MnO}_4^{-}+10 \mathrm{SO}_4^{2-}+16 \mathrm{H}^{+}
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