Question

_______23.The anode reaction is the same in all of the following electrolytic
cells except one:

A. Electrolysis of concentrated HCl solution
B. Electrolysis of dilute sodium chloride solution
C. Electrolysis of fuses lead chloride
D. Electrolysis of brine

Answer 1

A. Electrolysis of concentrated HCl solution $A (+): 2Cl^--2e^-=Cl_2$

B. Electrolysis of dilute sodium chloride solution $A (+): 4OH^--4e^-=O_2+2H_2O$

C. Electrolysis of fuses lead chloride $A (+): 2Cl^--2e^-=Cl_2$

D. Electrolysis of brine $A (+): 2Cl^--2e^-=Cl_2$

Answer: B is except one.