Question

When conc.$H_{2}S{O}_4$ is added to $KMn{O}_4$ explosion occurs.The compound formed is:

• A. $MnS{O}_4$
• B. $Mn{O}_5$
• C. $M{n}_2{O}_3$
• D. $M{n}_2{O}_7$

Answer 1

The correct option is D $M{n}_2{O}_7$

Reaction produces a highly stable magnese complex that can explode violently .

Concentrated $H_{2}S{O}_4$ will dehydrate $KMn{O}_4$ to $M{n}_2{O}_7$ and then $M{n}_2{O}_7$ is reduced .