InterviewSolution
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InterviewSolution
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Assuming complete ionization, same moles of which of the following compounds will require the least amount of acidified `KMnO_(4)` for complete oxidation ?A. `FeC_(2)O_(4)`B. `Fe(NO_(2))_(2)`C. `FeSO_(4)`D. `FeSO_(3)` |
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Answer» Correct Answer - C ` underset(v.f=5)(KMnO_(4))+underset(v.f.=3)(FeC_(2)O_(4))toMn^(+2)+Fe^(+3)+CO_(2)` `underset(v.f=5)(KMnO_(4))+underset(v.f.=5)(Fe(NO_(2))_(2))toMn^(+2)+Fe^(+3)+NO_(3)^(-)` Similarity of moles of `Fe(NO_(2))_(2)` is x `n_(KMnO_(4))=(5x)/(5)=x` `underset(v.f=5)(KMnO_(4))+underset(v.f=1)(FeSO_(4))toMn^(+2)+Fe^(+3)` and also the moles of `FeSO_(4)` is x `n_(KMnO_(4))=(x)/(5)` `underset(v.f=5)(KMnO_(4))+underset(v.f=3)(FeSO_(3))toMn^(+2)+SO_(4)^(2-)+Fe^(+3)` and also the moles of `FeSO_4` is x `n_(KMnO_(4))=(3x)/(5)` |
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