1.

When `MnO_(2)` fused with `KOH`, a coloured compound is formed . The product and its colour is:A. `K_(2)MnO_(4).` greenB. `Mn_(2)O_(3)`, brownC. `Mn_(2)O_(4)`, blackD. `KMnO_(4)`, purple

Answer» Correct Answer - 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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