Question

How many electrons are involved during the oxidation reaction of $KMn{O}_4$ in acidic medium ?

• A. $1$
• B. $3$
• C. $5$
• D. $4$

Answer 1

Answer: (C)

Reaction of $KMn{O}_4$ in acidic medium :
$Mn{O}_4^{-}+8H^{+}+5e^{-}\to M{n}^{2+}+4H_{2}O$