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प्रश्न
Mention two uses of the following metals and non-metals
Iron
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उत्तर
It is used to make pipes, tanks, railing, etc.
It is used in the construction of power transmission towers.
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संबंधित प्रश्न
Give two examples of alloys with their chemical composition.
Explain the term corrosion.
Explain how painting of an iron gate prevents it from rusting.
Explain the term “corrosion” with an example. Write a chemical equation to show the process of corrosion of iron.
Name any three objects (or structures) which are gradually damaged by the corrosion of iron and steel.
What is the corrosion of iron known as?
Explain with reason:
Roasting is carried out on sulphide ores and not on carbonate ores.
When one of the metals in an alloy is mercury the alloy is called _______.
Write scientific reason.
Anodization method is useful for prevention of the corrosion of the aluminium.
Generally, when metals are treated with mineral acids, hydrogen gas is liberated but when metals (except Mn and Mg), treated with HNO3, hydrogen is not liberated, why?
