Question

In the electrical me the gas collected at anode and cathode why is the volume of the collection at one electorate trouble than other what would happen h2so4 is not added

Answer 1

(a) Hydrogen gas is collected at cathode and oxygen gas at the anode.
(b) Hydrogen gas volume is double than oxygen gas as water contains 2 parts of hydrogen and 1 part of oxygen.
(c) Since pure water is a bad conductor of electricity so if dilute sulphuric acid will not be added electrolysis of water cannot occur.

Answer 2

Because in cathode hydrogen is collected and anode oxygen collected.
Ox-2×volume of hydrogen.
If sulphuric acid ia not added the split of water molecules will not happen.