Question

On addition of small amount of $KMnO_{4}$ to concentrated$H_{2}SO_{4}$, a green oily compound is obtained which is highly explosive in nature identify the compound from the following.

• A. $Mn_{2}O_{7}$
• B. $MnO_{2}$
• C. $MnSO_{4}$
• D. $Mn_{2}O_{3}$

Answer 1

Answer: (A)

$Mn_{2}O_{7}$

Answer 2

$2KMnO_{4} + 2H_{2}SO_{4}(conc.) \rightarrow$$$\underset{(greenonly)}{Mn_{2}O_{7}} + 2KHSO_{4} + H_{2}O$$