Question

Why we can prevent the rusting of iron by iron by plating it with zinc reason?

Answer 1

zinc breaks the contact between air and iron.

also it react with oxygen to form zinc oxide which also act as protective layer

Answer 2

Answer:

Explanation:

(i) No, we cannot protect the articles permanently

from rusting by painting on them.

(ii) The method of painting is suitable for short time.

(iii) If there is a scratch on the paint on the surface

of the article and if a small surface of the metal

comes in contact with air, the process of rusting

starts below the layer of the paint.