Explain how painting of an iron gate prevents it from rusting? - Vidyadip

Question

Explain how painting of an iron gate prevents it from rusting?

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Answer

Some methods of prevention of rusting are given below
(i) The simple method is to coat the iron with oil, grease or paint. These coats should be applied regularly to prevent rusting.
(ii) A more efficient method is to coat the iron with another metal such as zinc or chromium. The process of depositing a layer of zinc on iron is called galvanisation. The iron pipes used in our homes to carry water are galvanised to prevent rusting.
(iii) It can also be prevented by making alloys, e.g. stainless steel. Stainless steel is made by mixing iron with carbon and metals like chromium, nickel and manganese. It does not rust.

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