Question

WHAT ARE ADVANTAGES OF CORROSION?​

Answer 1

There are some advantages of corrosion. Surface 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

What are the advantage of corrosion.

[1] Surface corrosion forms an oxide layer which further protects the inner metal form corrosion.

[2] Some metals like zinc are used as sacrificial anodes to prevent corrosion to other metal.

[3] 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.