Why are oxidizing agents acidified?
Usually because oxidation reactions tend to specify acidic conditions.
And basic conditions tend to lead to the precipitation of insoluble metal hydroxides.
Metal oxidants, say permanganate,
So we use
If a redox reaction is specified to be in a BASIC medium, it is often easiest to balance the redox reaction in acidic conditions using
For instance, aluminum metal can be oxidized up to aluminate ion,
Charge and mass are balanced in this reaction as required.