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प्रश्न
Name five methods of preventing rusting of iron.
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उत्तर
Five methods of preventing rusting of iron are:
- By polishing the surface of iron with paint
- By applying oil or grease on the surface of iron
- By coating a thin layer of zinc on the iron metal by the process called galvanisation
- By coating other metals like tin coating and chromium coating
- By alloying with other metals (chromium and nickel) to form stainless steel, which does not corrode
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संबंधित प्रश्न
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(a) Cu and Sn
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(c) Pb and Sn
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(d) Name one ore or metal Y. Also write its chemical formula.
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- Explain the chemical reaction shown in the figure.
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