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प्रश्न
‘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.
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उत्तर
- Electrode through which current enters the electrolyte is anode.
- Electrode at which hydrogen is liberated is cathode.
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संबंधित प्रश्न
A metal ______ hydrogen in the reactivity series gives hydrogen with ______.
Name the following:
Two metals which give hydrogen with cold water.
Multiple Choice Question
The metal which reacts with cold water to produce hydrogen is
Complete and balance the following reaction.
Fe + HCl →_____________ +___________
‘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:
The metal used as a catalyst in hydrogenation of oils.
Complete and balance the equation:
[General method]
Reactions of metals with steam
Iron - 3Fe + 4H2O ⇌ ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Magnesium - Mg + 2HCl → ______+ _______ [g]
How did the name ‘hydrogen’ originate? How does hydrogen occur in the combined state?
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen chloride
