During which of the following changes will an exchange of $5$ electrons take place?
- A$MnO_4^- \to Mn^{2+}$
- B$CrO_4^{2-} \to Cr^{3+}$
- C$MnO_4^{2-} \to MnO_2$
- D$Cr_2O_7^{2-} \to 2Cr^{3+}$
Explore More
Similar Questions
When ammonia is heated with cupric oxide,the ammonia molecule $.......$
Medium
View SolutionIn aqueous alkaline solution, two electrons reduction of $HO_2^-$ gives
In the reaction $8 \ Al + 3 \ Fe_3O_4 \to 4 \ Al_2O_3 + 9 \ Fe$,the number of moles of electrons transferred by $1 \ mol$ of reductant is:
Medium
View SolutionIn the following reaction $Cr_2O_7^{2-} + 14H^{+} + 6I^{-} \to 2Cr^{3+} + 7H_2O + 3I_2$,which element is reduced?
Easy
View SolutionThe conversion of $PbO_2$ to $Pb(NO_3)_2$ is
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