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Question
Name the following:
A metallic oxide which can be reduced into metal by hydrogen.
Solution
Copper oxide (CuO)
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RELATED QUESTIONS
Draw a neat and well-labelled diagram for the laboratory preparation of hydrogen.
How is hydrogen gas collected? Why?
TRUE \ FALSE
Lead reacts briskly with dilute hydrochloric acid to form hydrogen.
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[Give balanced equation & name the product formed in the case other than hydrogen].
Name a metal which will not react with the reactants above to give hydrogen.
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In the laboratory preparation of hydrogen from zinc and dilute hydrochloric acid – the zinc used granulated zinc.
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Hydrogen is not collected over air.
The diagram represent the preparation and collection of hydrogen by a standard laboratory method.
State, why hydrogen is collected after all the air in the apparatus, is allowed to escape.
The diagram represent the preparation and collection of hydrogen by a standard laboratory method.
Name a gas other than hydrogen collected by the same method.
