Which of the following statements about electrolysis is NOT correct?
A. The substances in solution in the electrolyte become ionized B. Ions are electrically charged and are attracted towards electrodes when a potential difference is applied C. Ions may be discharged at the electrodes, forming bubbles or deposits D. The mass deposited depends upon the length of time for which current flows E. The mass of gas set free or metal deposited is proportional to the square of the current