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प्रश्न
For laboratory preparation of hydrogen, give the following:
method of collection
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उत्तर
It is collected by the downward displacement of water.
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संबंधित प्रश्न
Name the following:
Two metals which give hydrogen with cold water.
Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with:
A divalent metal
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
How would you modify your apparatus to collect dry hydrogen? Which drying agent would you employ for this purpose?
Complete and balance the following reaction.
Mg + H2O →_____________ +___________
Complete and balance the following reaction.
Zn + HCl →_____________ +___________
Correct the following statement:
Hydrogen is separated from CO by passing the mixture through caustic potash solution.
‘Hydrogen is obtained by electrolysis of acidified water’.
Answer the following pertaining to the preparation of hydrogen by electrolysis,
The meaning of the term ‘electrolysis’ and ‘electrolyte’.
Select the correct options for the following statement:
A foul smelling gas formed when hydrogen reacts with a molten non-metal, is ___.
Complete and balance the equation:
[General method]
Reactions of metals with steam
Magnesium - Mg + H2O → ______+ _______ [g]
State the reactant added to hydrogen to obtain the respective product in following case.
Ammonia
