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प्रश्न
What is done to prevent corrosion of metals?
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उत्तर
Corrosion of metals can be prevented by the following methods:
- Applying coatings: Metals are coated with oil, grease, varnish, or paint to prevent direct contact with air and moisture.
- Metal plating: Metals are plated with a non-corroding metal. For example, zinc plating (galvanization) is used to protect iron from rusting.
संबंधित प्रश्न
Give reasons:
Platinum, gold and silver are used to make jewellery.
The chemical reaction involved in the corrosion of iron metal is that of ______.
Give the constituents of brass.
Mention two uses of the following metals and non-metals
Iron
Corrosion can be an advantage in some case.Explain ?
Observe the following picture a write down the chemical reaction with the explanation.
Write three methods of preventing rusting of iron.
Observe the following diagram and write answers.
- Name the method.
- Explain the method.
- Give two examples of this method.
Copper objects lose their shine and form green coating of ____________.
Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?
