Question

Identify the correct statement with respect to the following reaction, $ 2K_2MnO_4 + Cl_2 \to 2KCl + 2KMnO_4$

• A. Oxidation of potassium manganate is taking place.
• B. Reduction of potassium manganate is taking place.
• C. Oxidation of $Cl_2$ is taking place.
• D. $Cl_2$ acts as reducing agent in the reaction.

Answer 1

Answer: (A)

$ 2K_2 \overset{\text{+6}}{Mn}O_4 + \overset{\text{0}}{C}l_2 \to 2K\overset{\text{-1}}{Cl}+ \overset{\text{+7}}{2KMnO_4}$
$Mn$ → Increase in oxidation number hence oxidation.
$Cl_2$ → Decrease in oxidation number hence reduction.
$Cl_2$ is acting as an oxidising agent.