In an acidic medium, 10 mL of 0.25 M oxalic acid is titrated with ${KMnO}_{4}$ solution. If the volu

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In an acidic medium, 10 mL of 0.25 M oxalic acid is titrated with ${KMnO}_{4}$ solution. If the volume of ${KMnO}_{4}$ solution required to reach end point is 10 mL , the strength of the ${KMnO}_{4}$ solution is

Accepted Answer

Sol. [Key Concept: Redox titration of oxalic acid with KMnO₄] $${KMnO}_{4} + H_{2}C_{2}O_{4}\overset{\phantom{H^{+}\ }}{ightarrow}{Mn}^{2 +} + 2{CO}_{2} + H_{2}O $$No. of equivalent of ${KMnO}_{4} = No$. of equivalent of $H_{2}C_{2}O_{4}$$$\begin{matrix} & 10 	imes 5 	imes M = 10 	imes 0.25 	imes 2 \ & M = \frac{5}{50} \ & M = \frac{1}{10} = 0.10M \end{matrix}$$

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