1 text{ mole of } H_2C_2O_4 text{ is oxidised | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) In basic medium,$MnO_4^-$ is reduced to $MnO_4^{2-}$ ($n$-factor $= 1$). The oxidation of $C_2O_4^{2-}$ to $CO_3^{2-}$ involves an $n$-factor of $

Vedclass · Accepted Answer

$5 : 1$

Vedclass · Answer

(B) In basic medium,$MnO_4^-$ is reduced to $MnO_4^{2-}$ ($n$-factor $= 1$). The oxidation of $C_2O_4^{2-}$ to $CO_3^{2-}$ involves an $n$-factor of $2$. For $1 	ext{ mole of } H_2C_2O_4$,$1 	imes 2 = x 	imes 1$,so $x = 2$.In acidic medium,$MnO_4^-$ is reduced to $Mn^{2+}$ ($n$-factor $= 5$). The oxidation of $C_2O_4^{2-}$ to $CO_2$ involves an $n$-factor of $2$. For $1 	ext{ mole of } NaHC_2O_4$,$1 	imes 2 = y 	imes 5$,so $y = 2/5 = 0.4$.The ratio $x/y = 2 / (2/5) = 10/2 = 5/1$.

$1 \text{ mole of } H_2C_2O_4 \text{ is oxidised by } x \text{ mole of } MnO_4^- \text{ in strong basic medium and } 1 \text{ mole of } NaHC_2O_4 \text{ is oxidised by } y \text{ mole of } MnO_4^- \text{ in acidic medium. Ratio of } x/y \text{ is}$

Similar Questions

The product $D$ in the following reaction sequence is:

Which of the following combinations of reagents does not undergo a redox reaction in an aqueous medium?

In the following reaction mixtures,
$I$. $Cu / CuSO_4 + Ag / Ag_2SO_4$
$II$. $Zn / ZnSO_4 + Cu / CuSO_4$
copper respectively undergoes

$KI$ is oxidised into $I_2$ by using the reagent

Oxalic acid when treated with potassium permanganate in the presence of an acid,produces

Vedclass Test Series

Exam Paper Generator

Online Exam Module