The incorrect statement regarding Nelson cell process is
H2 and NaOH are the by products in this process
At anode 2Cl– +2e– →Cl2 Chlorine is liberated
At cathode, 2H2O + 2e– →H2 + 2OH– Hydrogen is liberated
Hydrogen chloride is oxidised to give chlorine
At anode(+): 2Cl– +2e– →Cl2 liberated
At cathode(-):2H2O + 2e– →H2 + 2OH–