When MnO(2) is fused with KOH, a coloure...

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

A

`K_(2)MNO_(4)`, purple green

B

`KMnO_(4)`, purple

C

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

D

`Mn_(3)O_(4)`, black

Verified by Experts

The correct Answer is:

A

`2CuSO_(4)+10KCNrarr2K_(3)[Cu(CN)_(4)]+2K_(2)SO_(4)+(CN)_(2)uarr`

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