When MnO2 is fused with KOH, a coloured ...

When `MnO_2` is fused with KOH, a coloured compound is formed, the product and its colour is ___________.

A

`K_2MnO_4`, green

B

`KMnO_4`, purple

C

`Mn_2O_3`, brown

D

`Mn_3O_4`, black

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The correct Answer is:

A

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