Check sibling questions

Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is

(A) 1:1

(B) 2:1

(C) 4:1

(D) 1:2



The electrolysis of water takes place as:


Reaction when Electrolysis of water takes place - Teachoo.jpg


  • 2 Moles Hydrogen gas
  • And 1 Mole Oxygen gas is liberated


So, the correct option is (b) 2:1

CA Maninder Singh's photo - Expert in Practical Accounts, Taxation and Efiling

Made by

CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo