(C) In acidic medium, $KMnO_4$ (i.e.,$MnO_4^-$) undergoes reduction to $Mn^{2+}$ as follows: $MnO_4^- + 8H^+ + 5e^- \longrightarrow Mn^{2+} + 4H_2O$ H

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

(C) In acidic medium, $KMnO_4$ (i.e.,$MnO_4^-$) undergoes reduction to $Mn^{2+}$ as follows: $MnO_4^- + 8H^+ + 5e^- \longrightarrow Mn^{2+} + 4H_2O$ Here, the change in oxidation state of $Mn$ is from $+7$ to $+2$, so the number of electrons gained ($n$-factor) is $5$. Equivalent weight $= \frac{\text{Molecular weight}}{n\text{-factor}} = \frac{158}{5} = 31.6 \ g$.

Class 11 Chemistry Redox Reactions Redox reaction and Method for balancing Redox reaction

Medium

What is the equivalent weight of $KMnO_4$ in acidic medium (in $g$)? (Molecular weight of $KMnO_4 = 158 \ g$)

TS EAMCET 2020 All TS EAMCET

A
$158$
B
$52.7$
C
$31.6$
D
$39.5$

Explore More

Browse All

Question Bank

All Subjects

Class 11 Questions

Class 11

Chemistry Questions

Chapter

Redox Reactions

Subtopic

Redox reaction and Method for balancing Redox reaction

Previous Year

TS EAMCET 2020 Paper All TS EAMCET years →

Consider the following reaction occurring in basic medium $2MnO_4^- (aq) + Br^- (aq) \to 2MnO_2 (s) + BrO_3^- (aq)$. How can the above reaction be balanced further?

MediumAIIMS 2017

View Solution

Which of the following is a redox reaction?

MediumMHT CET 2025

View Solution

$MnO_4^- + C_2O_4^{2-} + H^+ \to Mn^{2+} + CO_2 + H_2O$ :
What are the correct stoichiometric coefficients for the balanced redox reaction?

Difficult

View Solution

Calculate the value of $n$ in the given reaction:
$MnO_4^{-} + 8H^{+} + n e^{-} \to Mn^{+2} + 4H_2O$

Easy

View Solution

Assign $A$,$B$,$C$,$D$ from the given type of reaction.
$Ca_{(s)} + 2H_2O_{(l)} \xrightarrow{R.T.} Ca(OH)_{2(aq)} + H_{2(g)} \uparrow$

Medium

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

What is the equivalent weight of $KMnO_4$ in acidic medium (in $g$)? (Molecular weight of $KMnO_4 = 158 \ g$)

Similar Questions

Consider the following reaction occurring in basic medium $2MnO_4^- (aq) + Br^- (aq) \to 2MnO_2 (s) + BrO_3^- (aq)$. How can the above reaction be balanced further?

Which of the following is a redox reaction?

$MnO_4^- + C_2O_4^{2-} + H^+ \to Mn^{2+} + CO_2 + H_2O$ :What are the correct stoichiometric coefficients for the balanced redox reaction?

Calculate the value of $n$ in the given reaction:$MnO_4^{-} + 8H^{+} + n e^{-} \to Mn^{+2} + 4H_2O$

Assign $A$,$B$,$C$,$D$ from the given type of reaction.$Ca_{(s)} + 2H_2O_{(l)} \xrightarrow{R.T.} Ca(OH)_{2(aq)} + H_{2(g)} \uparrow$

Vedclass Test Series

Exam Paper Generator

Online Exam Module

$MnO_4^- + C_2O_4^{2-} + H^+ \to Mn^{2+} + CO_2 + H_2O$ :
What are the correct stoichiometric coefficients for the balanced redox reaction?

Calculate the value of $n$ in the given reaction:
$MnO_4^{-} + 8H^{+} + n e^{-} \to Mn^{+2} + 4H_2O$

Assign $A$,$B$,$C$,$D$ from the given type of reaction.
$Ca_{(s)} + 2H_2O_{(l)} \xrightarrow{R.T.} Ca(OH)_{2(aq)} + H_{2(g)} \uparrow$