Chemistry - Redox Reactions Question with Solution | TestHub

ChemistryRedox ReactionsTitrationMedium2 minQB

ChemistryMediummultiple choice

During titrations in aqueous solutions one mole of $KMnO_{4}$ is used for complete oxidation of $FeSO_{4}, FeC_{2} O_{4}$ and $H_{2} C_{2} O_{4}$ respectively and separately. Pick up the correct statement(s) :

Options:(select one or more)

Answer:

A, C, D

Solution:

$KMnO_{4} H^{+} Mn^{+ 2} - 5 e^{-}$

(i) $Fe^{+ 2} \to Fe^{+ 3} + e$

(ii) $Fe^{+ 2} + C_{2}^{+ 3} O_{4}^{- 2} \to 2 C + 4 O_{2} + Fe^{+ 3} + 3 e$

(iii) $H_{2} C + 3 O_{4} \to 2 C + 4 O_{2} + 2 e^{-}$

(A) 5 mole of $FeSO_{4}$ can be oxidised

(D) 0.5 mole of $H_{2} C_{2} O_{4}$ can be oxidised

Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Titration

⏱ 2mℹ️ Source: QB

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