Which of the following is false about electrolysis of water ?
Platinum electrodes can be used
Hydrogen is released at cathode
Pure water is used for electrolysis
Oxygen is produced at anode
As we have learnt in electrolysis of water,
Reactions occuring at cathode and anode are given as
Thus, and
are produced respectively at Cathode and Anode
Pure water is a poor conductor of electricity, so some acid or alkali is added to it.
Therefore, option(3)is correct.