Consider the following statements regarding the electrochemical reactions during the electrolysis of concentrated aqueous sodium chloride (brine): 1. At the anode, chloride ions are oxidized in preference to hydroxide ions due to the overvoltage of oxygen. 2. At the cathode, sodium ions are reduced in preference to hydrogen ions due to their lower reduction potential. 3. The overall cell reaction results in an increase in the pH of the electrolyte solution. Which of the statements given above are correct?

Options:

• A: 1 and 2 only
• B: 1 and 3 only
• C: 2 and 3 only
• D: 1, 2 and 3

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