Which of the following reactions is incorrect | vedclass

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

Question

(C) $1$. The reaction $Ag_2O + H_2O_2 	o 2Ag + H_2O + O_2$ is a correct redox reaction where $H_2O_2$ acts as a reducing agent.$2$. The reaction $PbS

Vedclass · Accepted Answer

$Fe^{2+} + H_2O_2 \xrightarrow{	ext{basic}} Fe^{3+} + 2OH^-$

Vedclass · Answer

(C) $1$. The reaction $Ag_2O + H_2O_2 	o 2Ag + H_2O + O_2$ is a correct redox reaction where $H_2O_2$ acts as a reducing agent.$2$. The reaction $PbS + 4H_2O_2 	o PbSO_4 + 4H_2O$ is a correct redox reaction where $H_2O_2$ acts as an oxidizing agent.$3$. The reaction $Fe^{2+} + H_2O_2 \xrightarrow{	ext{basic}} Fe^{3+} + 2OH^-$ is incorrect because in a basic medium,$Fe^{2+}$ is oxidized to $Fe^{3+}$ by $H_2O_2$,but the stoichiometry and charge balance are not represented correctly as $2Fe^{2+} + H_2O_2 	o 2Fe^{3+} + 2OH^-$.$4$. The reaction $Mn^{2+} + H_2O_2 \xrightarrow{	ext{basic}} Mn^{4+} + 2OH^-$ is a correct representation of the oxidation of $Mn^{2+}$ to $MnO_2$ $(Mn^{4+})$ in basic medium.

Which of the following reactions is incorrect?

Similar Questions

What is the amount of $H_2O_2$ in $gm$ present in $1 \, L$ of $1.5 \, N \, H_2O_2$ solution?

$KO_2$ reacts with water to form $A$,$B$ and $C$. $B$ forms $C$ when it reacts with iodine in basic medium. What are $B$ and $C$ respectively?

Hydrolysis of one mole of peroxodisulphuric acid $(H_2S_2O_8)$ yields:

Assertion $:$ Amount of $H_2O_2$ in a sample can be determined by treating $H_2O_2$ solution with $KI$ and followed by titration of liberated $I_2$ with sodium thiosulphate.
Reason $:$ In this titration,an intense blue colour appears which disappears at the end point.

What is the approximate volume (in $mL$) of $10$ vol $H_2O_2$ solution that will react completely with $1 \ L$ of $0.02 \ M \ KMnO_4$ solution in acidic medium?

Vedclass Test Series

Exam Paper Generator

Online Exam Module