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When MnO(2) fused with KOH, a coloured c...

When `MnO_(2)` fused with `KOH`, a coloured compound is formed . The product and its colour is:

A

`K_2MnO_4`, purple

B

`KMnO_4`, purple

C

`Mn_2O_3`, brown

D

`Mn_3O_4`, black

Text Solution

Verified by Experts

The correct Answer is:
A
Potassium manganate is formed which has purple colour.
`2MnO_2+4KOH+O_2to2K_2MnO_4+2H_2O`
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