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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_(2)MnO_(4).` green

B

`Mn_(2)O_(3)`, brown

C

`Mn_(2)O_(4)`, black

D

`KMnO_(4)`, purple

Text Solution

Verified by Experts

The correct Answer is:
1
Pyrolusite on fusion with KOH in air gives green coloured manganate.
`2MnO_(2)+4KOH+O_(2)rarr2K_(2)MnO_(2)("green")+2H_(2)O`
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