Assertion: on electrolysis of water hydrogen gas is produced at cathode and Oxygen gas at anode. Reason: water molecule has hydrogen and oxygen present in the ratio 2 : 1 by volume.

Assertion: on electrolysis of water hydrogen gas is produced at cathod

1.	Assertion: on electrolysis of water hydrogen gas is produced at cathode and Oxygen gas at anode. Reason: water molecule has hydrogen and oxygen present in the ratio 2 : 1 by volume.
Answer» assertion and reason both are CORRECT but reason is correct for assertion.Explanation:the reason is becoz HYDROGEN is POSITIVELY CHARGED and oxygen is negatively charged.