D-And F-Block Elements Ques 496

Question: When a small amount of $ KMnO_4 $ is added to concentrated $ H_2SO_4 $ a green oily compound is obtained which is highly explosive in nature. Compound may be:

Options:

A) $ MnSO_4 $

B) $ Mn_2{{O}_7} $

C) $ MnO_2 $

D) $ Mn_2{{O}_3} $

Show Answer

Answer:

Correct Answer: B

Solution:

$ KMnO_4 $ reacts with $ H_2SO_4 $ to form $ Mn_2O_7 $ which is highly explosive substance.

$ 2KMnO_4+H_2SO_4\xrightarrow{{}} $ $ K_2SO_4+Mn_2O_7+H_2O $



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