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JEE Advanced 2016Paper 1
Exam
JEE Advanced
Year
2016
Paper
Paper 1
Subject
Chemistry
Chapter
Redox Reactions

JEE Advanced 2016 · Paper 1 · Chemistry · Redox Reactions

In a neutral or faintly alkaline solution, 8 moles of permanganate...

In a neutral or faintly alkaline solution, 88 moles of permanganate anion quantitatively oxidize thiosulphate anions to produce XX moles of a sulphur containing product. The magnitude of XX is:

Correct answer

6

Step-by-step solution

8MnO4−+3S2O32−+H2O→8MnO2+6SO42−+2OH−8\text{M}\text{n}{\text{O}}_{4}^{-} + 3{\text{S}}_{2} {\text{O}}_{{}_{3}}^{2 -} + {\text{H}}_{2} \text{O} \to 8\text{M}\text{n}{\text{O}}_{2} + 6\text{S}{\text{O}}_{4}^{2 -} + 2\text{O}{\text{H}}^{-}
Moles of SO42−\text{S}{\text{O}}_{4}^{2 -} formed from 88 moles of MSO4−=6{\text{MSO}}_{4}^{-} = 6
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