Question

N the electrolysis of water, (a) name the gas collected at anode and cathode (b) why is the volume of gas collected at one electrode double than the other? (c) what would happen if dil h2so4 is not added to water?

Answer 1

Hey mate..

Here's your answer..

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a)Anode-oxygen
Cathode-hydrogen

b)Since water(H2O) contains 2 molecules of hydrogen
and only a single molecule of oxygen.Hence,hydrogen
gas is twice the volume as oxygen.

c)Since,pure water do not conduct electricity better,
so adding H2SO4 makes it a good conductor of
electricity.

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HOPE IT HELPS...

@Rêyaañ11

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.