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Question

In dilute alkaline solution, MnO−4 changes to:

A
MnO24
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B
MnO2
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C
Mn2O3
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D
MnO
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Solution

The correct option is D MnO24
In the dilute alkaline solution, MnO4 changes to MnO24.
In this reaction, Mn(VII) accepts an electron to form Mn(VI).
MnO4MnO24+e

So, the correct option is (A)

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