Question

In electrolysis of water: (a) Name the gas collected at cathode and anode.
(b) Why is volume of one gas collected at one electrode is double of another?
(c) why are few drops of dil. H2SO4 added to water?

Answer 1

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.

Answer 2

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