Question

how is corrosion a Redox reaction

Answer 1

The electrons that are released flow through the iron to the metal surface where there is water and oxygen. Rusting of iron is corrosion of iron. ...Corrosion of metal is a redox reactionin which occur when a metal loses electron and is oxidised to form the metal ion.

Answer 2

Corrosion is a process in which metals are eaten up gradually by the action of air,moisture or chemical on their surface.
e.g.Rusting of iron
Redox reaction:
Redox reaction is made with two reaction
Oxidation reaction
Reduction reaction
1.Oxidation reaction:
+ O2( oxygen)
- H2( hydrogen)
loss of e- ( leo)
2.Reduction reaction:
- O2 (oxygen)
+ H2( hydrogen)
gang of e- (geo)
I hope ...
this answer is help