Question

$H_2{O}_2$ when reacts with $MnS{O}_4$ acts as an oxidising agent in :

• A. Acidic medium
• B. Alkaline medium
• C. Neutral medium
• D. $H_2{O}_2$ does not react with $MnS{O}_4$

Answer 1

The correct option is B Alkaline medium

$H_2{O}_2$ acts as a powerful oxidising agent when it reacts with $MnS{O}_4$ in alkaline medium .
The reaction is :
$MnS{O}_4+H_2{O}_2+2NaOH⟶Mn{O}_2+N{a}_{2}S{O}_4+2H_{2}O$
Oxidation state of $Mn$ changes from +2 to +4