Question

The ratio of the volumes of gases liberated at anode and cathode respectively during the electrolysis of water is

• A.
  1 : 2
• B.
  2 : 1
• C.
  2 : 3
• D.
  3 : 2

Answer 1

The correct option is A

1 : 2
During electrolysis of water, oxygen and hydrogen gases are liberated at anode and cathode respectively. The following reaction takes place:


Therefore, the ratio of the volumes of gases liberated at anode and cathode respectively is 1 : 2.

Hence, the correct answer is option (a).