On addition of a small amount of KMnO4

Question:

On addition of a small amount of KMnO4 to concentrated H2SO4, a green oily compound is obtained which is highly explosive. Identify the compound from the following.

(i) Mn2O7

(ii) MnO2

(iii) MnSO4

(iv) Mn2O3

Solution:

Option (i) Mn2O7 is the answer.

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