[danago]

Hey. Im just revising for an exam and came across something that im not completely sure about. When a metal corrodes, why does it occur mostly at areas where oxygen is limited?

[Schrödinger]

If u are refering to the corrosion of metal due to an acid, then i think it is because at the site where oxygen is present in a good amount, the metal combines with it and forms a layer of oxide over it. These oxides are stable to a good extent.

This prevents the action of acids on the metal (usually if the acid is not too concentrated).

I think this is the answer.....not too sure.