Question

On addition of small amount of $KMn{O}_4$ to concentrated $H_{2}S{O}_4$, a green oily compound is obtained which is highly explosive in nature. Identify the compound from the following.

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

Answer 1

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

$2KMn{O}_4$ + $2H_{2}S{O}_4$$(conc.)$$\to$ $M{n}_2{O}_7$ + $2KHS{O}_4$ + $H_{2}O$,

$M{n}_2{O}_7$ is a compound highly explosive in nature.