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प्रश्न
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen chloride
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उत्तर
Reactant added to obtain:
Hydrogen chloride: Hydrogen and chlorine.
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संबंधित प्रश्न
A metal ______ hydrogen in the reactivity series gives hydrogen with ______.
For laboratory preparation of hydrogen, give the following:
materials used
Which test should be made before collecting hydrogen in a gas jar?
State how hydrogen occurs in the free state. Name three compounds containing hydrogen in the combined state.
‘Hydrogen is obtained by electrolysis of acidified water’.
Answer the following pertaining to the preparation of hydrogen by electrolysis,
Name the electrode –
- through which the current enters the electrolyte.
- at which hydrogen is liberated.
Select the correct options for the following statement:
The acid _____ is not Used in the laboratory preparation of hydrogen, using zinc and an acid.
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Calcium - Ca + H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with steam
Iron - 3Fe + 4H2O ⇌ ______+ _______ [g]
Account for the following fact:
Though lead is above hydrogen in the activity series, it does not react with dilute hydrochloric acid or dilutes sulphuric acid.
State why hydrogen is not prepared in the laboratory by the action of sodium with cold water.
