When $KMnO_4$ reacts with $Br^-$ in a basic medium to give bromate ion,the oxidation state of $Mn$ changes from $7$ to . . . . . .
- A$6$
- B$4$
- C$3$
- D$2$
Explore More
Similar Questions
For the reaction $Cr_{2}O_{7}^{2-} \xrightarrow{H^{+}} Cr^{3+}$,the equivalent weight of $Cr_{2}O_{7}^{2-}$ is:
Medium
View SolutionWhen $SO_{2}$ is passed through acidified $K_{2}Cr_{2}O_{7}$,the process that takes place is
The equivalent weight of $KIO_3$ in the reaction $2Cr(OH)_3 + 4OH^{-} + KIO_3 \to 2CrO_4^{2-} + 5H_2O + KI$ is
Medium
View SolutionIn the balanced redox reaction $MnO_4^- + xFe^{2+} + yH^+ \rightarrow Mn^{2+} + 5Fe^{3+} + 4H_2O$,what are the values of $x$ and $y$?
Medium
View SolutionConsider the reaction of water with $F_2$ and suggest in terms of oxidation and reduction,which species are oxidized and reduced.
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo