Question

In electrolysis (1) name the gas collected t cathode and at anode. (2) why is the volume of gas collected at one electrode of other. (3) why are few drops of dil hydrogensulphuric acid added to water.

Answer 1

i) in cathode hydrogen and oxygen at anode
iii )HCL acts as electrolight

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.