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Chemistry - Redox Reactions Question with Solution | TestHub

ChemistryRedox ReactionsTitrationMedium2 minQB

ChemistryMediumnumerical

A sample of pure $KH C_{2} O_{4} \cdot H_{2} C_{2} O_{4} \cdot 2 H_{2} O$ requires 15 mol of $NaOH$ for titration. How many moles of $KMn O_{4}$ will the same sample react with, in acid medium?

Answer:

4.00

Solution:

15 mol $NaOH$ (3 $H^{+}$ per unit) $\Rightarrow$ 5 mol salt $\Rightarrow$ 10 mol oxalate. In acid: $2KMn O_{4}$ : $5 C_{2} O_{4}^{2 -}$ , so $KMn O_{4}$ = 2/5 × 10 = 4 mol. Ans: 4.

Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Titration

⏱ 2mℹ️ Source: QB

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