Question

The number of moles of oxalate ions oxidized by one mole of $Mn{O}_4^{-}$ ion in acidic medium.

• A. $\frac{5}{2}$
• B. $\frac{2}{5}$
• C. $\frac{3}{5}$
• D. $\frac{5}{3}$

Answer 1

The correct option is A $\frac{5}{2}$

Using,
Equivalents of $C_2{O}_4^{2-}=$ equivalents of $Mn{O}_4^{-}$

$\text{Moles}\times \text{n factor of}{C}_2{O}_4^{2-}=\text{Moles}\times \text{n factor of}Mn{O}_4^{-}-$

putting values,

$\text{Moles}\times 2=1\times 5$
$\text{Moles}=\frac{5}{2}$