Question

Give reason for the followings:- on electrolysis of an aq. solution of nacl ,h2 is liberated at cathode inspite of na.

Answer 1

it is because of the reaction of sodium chloride and water both. this gives us the breakdown of water molecule into hydrogen but the oxygen reacts with na due to its high affinity and forms naoh. so h2 gas is liberated at cathode in spite of na