On addition of small amount of \( \mathrm{KMnO}_{4} \) to P concent...

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On addition of small amount of \( \mathrm{KMnO}_{4} \) to
P concentrated \( \mathrm{H}_{2} \mathrm{SO}_{4} \), a green oily compound is

W obtained which is highly explosive in nature. Identify the compound from the following:
(1) \( \mathrm{Mn}_{2} \mathrm{O}_{7} \)
(2) \( \mathrm{MnO}_{2} \)
(3) \( \mathrm{MnSO}_{4} \)
(4) \( \quad \mathrm{Mn}_{2} \mathrm{O}_{3} \)
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