How does painting of an iron object prevent rusting?
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the paint does not allow the water and oxygen to enter the iron rod
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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.
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