During the electrolysis of water, Hydrogen and Oxygen are evolved at:

Cathode; Anode

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Cathode; Cathode

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Anode; Anode

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Anode; Cathode

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Solution

The correct option is A Cathode; Anode
During the electrolysis of water, Hydrogen is evolved at the cathode(Reduction) and Oxygen is evolved at the anode(Oxidation) in the ratio of 2:1 by volume.

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

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