Chemistry - Redox Reactions Question with Solution | TestHub
ChemistryRedox ReactionsEquivalent Weight and n-factorMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
In the presence of fluoride ion, Mn²⁺ can be titrated with MnO₄⁻, both reactants being converted to a complex of Mn(III). A 0.458 g of sample containing Mn₃O₄ was dissolved and all manganese was converted to Mn²⁺. Titration in the presence of fluoride ion consumed 30.0 ml of KMnO₄ that was 0.125 N against oxalate. (Mn = 55)
What is the normality of KMnO₄ solution against Mn²⁺?
Options:
Answer:
B
Solution:
Against Mn²⁺, MnO₄⁻ is reduced to Mn(III), n-factor = 4. N = 4 × 0.025 = 0.1 N, matching (b).
Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Equivalent Weight and n-factor
⏱ 2mℹ️ Source: QB
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