During this electrolysis, the pH of the solution will A - VCE - SSCE Chemistry - Question 6 - 2003 - Paper 1

During electrolysis, the region around the cathode tends to become more alkaline, which leads to an increase in pH. This occurs because hydroxide ions ( ext{OH}^-) are produced at the cathode due to the reduction of water or other compounds. Conversely, at the anode, oxidation reactions may lead to the production of acids or the consumption of hydroxide ions, causing a decrease in pH in that area. Thus, the overall effect is that pH increases around the cathode and decreases around the anode.