Chemistry - Redox Reactions Question with Solution | TestHub
ChemistryRedox ReactionsTitrationMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
KMnO₄ oxidizes Xⁿ⁺ ion to XO₃⁻ in acid solution. 2.5×10⁻³ mole of Xⁿ⁺ requires 1.5×10⁻³ mole of MnO₄⁻.
How many mole of KMnO₄ is needed per mole of Xⁿ⁺ to oxidize it to XO₃⁻ in strong basic medium?
Options:
Answer:
B
Solution:
In strong basic medium MnO₄⁻ is reduced only to MnO₄²⁻ (manganate), gaining 1 e⁻ per Mn. X²⁺ XO₃⁻ loses 3 e⁻, so 3 mol KMnO₄ are needed per mol of Xⁿ⁺, matching (b).
Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Titration
⏱ 2mℹ️ Source: QB
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