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प्रश्न
Which metal is preferred for collecting hydrogen from:
Write the balanced equation
Hot water
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उत्तर
Hot water: Magnesium
Mg(s) + 2H2O(l) → Mg(OH) 2(s) + H2(g)
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संबंधित प्रश्न
From the knowledge of activity series, name a metal which shows the following properties
It reacts readily with cold water
From the knowledge of activity series, name a metal which shows the following properties:
It displaces hydrogen from dilute HCl.
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Dilute HCl is added to one part of substance B and dilute HNO3 to the other.
- Name the substances A and B.
- Give two tests for the colourless liquid formed in the experiment.
- What happens to substance A when it reacts with hydrogen? Give reasons for your answer.
- Write an equation for the reaction between hydrogen and substance A.
- Is there any reaction between substance B and dilute hydrochloric acid? Give reasons for your answer.
Give a reason for the following.
Hydrogen is collected by the downward displacement of water and not of air, even though it is lighter than air.
Select the odd one out and justify your answer.
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Correct the following statement:
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Name the following.
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