Question

when electrolysis of H2O (1) gas collected at anode or cathode (2)why the volune of gas collected at one electrode double than the other

Answer 1

(I) At cathode: Hydrogen gas
At anode: Oxygen gas

(ii) H2 : O2 is 2 : 1
Hydrogen is formed at a greater volume because you can notice in the formula of water, there are TWO H atoms and 1 O atom. It is a polar covalent compound.



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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.