How many electrons are involved in the following redox reaction ?
3
4
6
5
The given reaction is
Let's breakdown the reaction into parts and balance the electrons
Reaction 1 involves reduction with 6 electrons.
Reaction 2 and 3 involves oxidation with 1 and 2 electrons respectively.
Therefore balance the electrons we add 2 and 3 and multiply each by 2 and add all reactions.
We get balanced electrons on both sides.
No. of electrons in oxidation and reduction = 6