Question
Chemistry Question on d -and f -Block Elements
When MnO2 is fused with KOH and O2, what is the product formed and its colour? MnO2+KOH+O2→?+H2O
A
MnO - colourless
B
KMnO4 - purple
C
K2MnO4 - dark green
D
MnO3 - black
Answer
K2MnO4 - dark green
Explanation
Solution
2MnO2+4KOH+O2−> dark green\cf2K2MnO4 +2H2O