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MnO2 when fused with KOH oxidized in air gives

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MnO2 when fused with KOH and oxidized in air gives a dark green compound X. In acidic solution, X undergoes disproportionation to give an intense purple compound Y and MnO2. The compounds X and Y, respectively, are 

(A)  K2MnO4 and KMnO4  

(B)  Mn2O7 and KMnO4  

(C)  K2MnO4 and Mn2O7  

(D)  KMnO4 and K2MnO4 

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1 Answer

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by (68.0k points)

Correct option  (A) K2MnO4 and KMnO4

Explanation:

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