Question

what is the advantages of corrosion?????

Answer 1

Here are some advantages of corrosion: urface corrosion forms an oxide layer. It acts as a barrier for air and moisture and thereby preventing the inner metal from corrosion. Some metals like zinc act as sacrificial anodes to prevent corrosion to other metals.

Answer 2

Advantages of corrosion -

1. Protection : Surface corrosion forms an oxide layer which further protects the inner metal form corrosion.
2. Corrosion prevents corrosion : Some metals like zinc are used as sacrificial anodes to prevent corrosion to other metal.
3. Galvanic corrosion : The principle on which primary batteries work. In which one metal corrodes preferentially to another when both metals are in electrical contact, in the presence of an electrolyte.

hope it helps