Question

$1$ mol of ferric oxalate is oxidized by x mol of $Mn{O}_4^{-}$ and 1 mol of ferrous oxalate is oxidized by y mol of $Mn{O}_4^{-}$ in acidic medium. The ratio $\frac{x}{y}$ is ____.

• A. $2:1$
• B. $1:2$
• C. $3:1$
• D. $1:3$

Answer 1

The correct option is A $2:1$

Ferric oxylate $F{e}_2(C_2{O}_4{)}_3\to 2F{e}^{+3}+3C_2{O}_4^{-2}$

ferrous oxylate $Fe{C}_2{O}_4\to F{e}^{+2}+C_2{O}_4^{2-}$

oxidizing agent is $Mn{O}_4^{-}$

2 mol $F{e}^{-3}$ in ferric oxidized

1 mol $F{e}^{+2}$ in ferrous oxidized

Ratio $\frac{x}{y}=\frac{2}{1}$