Consider the following equations:2 Fe^{2+} + | vedclass

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

Question

(D) For the first reaction in basic medium:$[Fe^{2+} ightarrow Fe^{3+} + e^{-}] 	imes 2$$H_2O_2 + 2 e^{-} ightarrow 2 OH^{-}$Adding these gives:

Vedclass · Accepted Answer

$19$

Vedclass · Answer

(D) For the first reaction in basic medium:$[Fe^{2+} ightarrow Fe^{3+} + e^{-}] 	imes 2$$H_2O_2 + 2 e^{-} ightarrow 2 OH^{-}$Adding these gives: $2 Fe^{2+} + H_2O_2 ightarrow 2 Fe^{3+} + 2 OH^{-}$Here,$x = 2$ and $y = 2$.For the second reaction in acidic medium:$[MnO_4^{-} + 8 H^{+} + 5 e^{-} ightarrow Mn^{2+} + 4 H_2O] 	imes 2$$[H_2O_2 ightarrow O_2 + 2 H^{+} + 2 e^{-}] 	imes 5$Adding these gives: $2 MnO_4^{-} + 16 H^{+} + 5 H_2O_2 ightarrow 2 Mn^{2+} + 8 H_2O + 5 O_2 + 10 H^{+}$Simplifying: $2 MnO_4^{-} + 6 H^{+} + 5 H_2O_2 ightarrow 2 Mn^{2+} + 8 H_2O + 5 O_2$Here,$x' = 2, y' = 8, z' = 5$.The sum of stoichiometric coefficients is $x + y + x' + y' + z' = 2 + 2 + 2 + 8 + 5 = 19$.

Similar Questions

$KMnO_4$ acts as an oxidising agent in alkaline medium. When alkaline $KMnO_4$ is treated with $KI$,iodide ion is oxidized to

In the reaction of sodium thiosulphate with $I_2$ in aqueous medium, the equivalent weight of sodium thiosulphate is equal to:

What is the value of $x$ and $y$ in order to balance the following redox reaction?
$x CuO + y NH_3 \longrightarrow x Cu + N_2 + x H_2 O$

How many moles of $K_2Cr_2O_7$ can be reduced by $1 \ mol$ of $Sn^{2+}$?

How many moles of electrons are needed to convert one mole of nitrate ion to hydrazine?

Vedclass Test Series

Exam Paper Generator

Online Exam Module