Question

How many electrons are involved in oxidation by $KMnO_4$ in basic medium ?

• A. 1
• B. 2
• C. 5
• D. 3

Answer 1

Answer: (D)

3

Answer 2

In alkaline medium, $KMnO_4$ acts as an oxidising agent as follows $MNO^-_4+2H_2O+3e^- \rightarrow MnO_2+$ $OH^-$Thus three electrons per molecule of are involved