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प्रश्न
\[\ce{KMnO4}\] acts as an oxidising agent in acidic medium. The number of moles of \[\ce{KMnO4}\] that will be needed to react with one mole of sulphide ions in acidic solution is ______.
पर्याय
`2/5`
`3/5`
`4/5`
`1/5`
उत्तर
KMnO4 acts as an oxidising agent in acidic medium. The number of moles of \[\ce{KMnO4}\] that will be needed to react with one mole of sulphide ions in acidic solution is \[\ce{2/5}\].
Explanation:
\[\ce{2Mno^{-}4 + 5S^2 + 16H^- -> 2Min^{2+} + 5S + 8H2O}\]
For 5 mole of S the number of moles of \[\ce{KMnO4 = 2}\]
For 1 mole of S the number of moles of \[\ce{KMnO4 = 2/5}\]
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संबंधित प्रश्न
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| Cr2+/Cr | −0.9 V |
| Mn2+/Mn | −1.2 V |
| Fe2+/Fe | −0.4 V |
| Cr3/Cr2+ | −0.4 V |
| Mn3+/Mn2+ | +1.5 V |
| Fe3+/Fe2+ | +0.8 V |
Use this data to comment upon:
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