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प्रश्न
Write a chemical equation to illustrate the use of aluminium for joining cracked railway lines.
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उत्तर
\[\ce{\underset{oxide}{\underset{Iron (III)}{Fe2O3_{(s)}}} + \underset{Aluminium}{2Al_{(s)}} -> \underset{Iron}{2Fe_{(l)}} + \underset{oxide}{\underset{Aluminium}{Al2O3_{(s)}}} + Heat}\]
संबंधित प्रश्न
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Na, S, C, K, H
Explain why, metals usually do not liberate hydrogen gas with dilute nitric acid.
What is the action of water on sodium ? Write equation of the chemical reaction involved.
Name one metal which displaces silver from silver nitrate solution and one which does not.
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(a) What is the nature of oxide XO?
(b) What is the nature of oxide XO2?
(c) Would you call element X a metal or a non-metal? Give reason for your choice.
(d) Can you give an example of element like X?
