Question

In 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 H2 SO4 is not added to water?

Answer 1

The volume of the hydrogen gas collected will be double that of oxygen as the water moleulcule itself has hydrogen and oxygen in the ratio 2:1

if H2SO4 is not added the reaction will be slow.

Hope it helps

Answer 2

anode =oxygen

cathode = hydrogen

the gas volume collected at one electrode double than the other because 1 molecule of water contains 2:1 i.e 2 hydrogens with 1 oxygen makes one molecule of water.

when h2so4 is not added to the water there will be no formation of h2 and o2 gasses at cathode and anode as water doesnt conduct electricity