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Q.

When MnO2 is fused with KOH in air, it gives

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a

KMnO4

b

Mn3O4

c

K2MnO4

d

Mn(OH)2

answer is C.

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Detailed Solution

WhenMnO2 is fused with KOH in the presence of air, the result is the green potassium manganate K2MnO4.

2MnO2+4KOH+O2→2 K2MnO4+2H2O

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