In acid solution,the reaction $MnO_4^- \to Mn^{2+}$ involves

  • A
    Oxidation by $3$ electrons
  • B
    Reduction by $3$ electrons
  • C
    Oxidation by $5$ electrons
  • D
    Reduction by $5$ electrons

Explore More

Similar Questions

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:

$A$ sulphur molecule is converted into a sulphide ion when it:

In the following reaction,$3CuO + 2NH_3 \to N_2 + 3H_2O + 3Cu$,what happens during the conversion of $NH_3$ to $N_2$?

In aqueous alkaline solution, two electrons reduction of $HO_2^-$ gives

In the reaction $3Mg + N_2 \to Mg_3N_2$,which of the following is correct?

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