Why are articles made of iron painted to prevent rust
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When iron is exposed to the environmental condition it terribly reacts with water and air and ends up with iron rusting. Iron articles are therefore painted off so that iron can not react with water and air. This is the way to avoid a reaction which would concurrently stop rusting of iron.
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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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