Question

in electrolysis of water why is the volume of gas collected over one electrode double that of the Other electrode

Answer 1

As we know The compound formed is H²O,
Hydrogen will have 2 molecules instead of 1 because it has 2 hydrogen molecules and oxygen is only 1 molecule.

Therefore Hydrogen is double of oxygen.
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Answer 2

Answer:

In electrolysis of water :

a ) . Hydrogen gas collected at cathode. And oxygen gas gas collect at anode.

b ) . We know that in water there is 2 hydrogen atom and 1 oxygen atom. That's why volume of gas collected at one electrode double than the other.

c ) . Pure water is a bad conductor of electricity when we add drops of dil sulphuric acid we make it a good conductor of electricity.