Question

How many moles of electrons are exchanged during the formation of 3 moles of Mgo?​

Answer 1

Answer:

the correct answer is 2

Explanation:

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Answer 2

Answer:

Reaction takes place as follows:

MnO

4

−

+H

2

O+2e

−

→MnO

3

−

+2OH

−

So, 2 electrons are involved in reduction of 1 mole of MnO

4

−

ion in alkaline medium to MnO

3

−

.