At the cathode (negative electrode), reduction occurs. Both Na⁺ ions and water (H₂O) molecules are present. Water is more easily reduced than Na⁺ ions due to its higher reduction potential. Therefore, hydrogen gas is produced. Reaction: 2H₂O(𝑙)+2𝑒−→H₂(𝑔)+2OH−(𝑎𝑞))
When the aqueous solution of NACL is electrolyzed
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