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प्रश्न
Why does aluminium not react with water under ordinary conditions?
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उत्तर
Aluminium does not react with water under ordinary conditions because of the presence of a thin but tough layer of aluminium oxide on its surface. This layer of aluminium oxide prevents it from reacting with water.
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संबंधित प्रश्न
Write an equation for the reaction of:
Sodium with oxygen
Give reasons for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.
Complete and balance the following equation:
\[\ce{Na2O + H2O ->}\]
Which of the following elements would yield an acidic oxide?
Na, S, C, K, H
Which of the following elements would yield a basic oxide?
Na, S, C, K, H
What is the nature of the oxide Na2O? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.
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Magnesium, Copper, Iron, Sodium, Zinc, Lead, Calcium
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Write the equation for the reaction of:
Aluminium with dilute hydrochloric acid.
Name the products formed in the given case. Also indicate the physical states of all the substances involved.
Name one metal more reactive than hydrogen.
Name one metal which displaces silver from a silver nitrate solution.
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It does not react with cold as well as hot water but reacts with steam.
When calcium metal is added to water, the gas evolved does not catch fire but the same gas evolved on adding sodium metal to water catches fire. Why is it so?
What are noble gases?
Where does the metal aluminium, used in the thermit process, occurs in the reactivity series of metals?
Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?
Which of the following property is not responsible for copper to be used as electrical conduction wires?
