Final answer:
In the electrolysis of KI, iodine is formed at the anode instead of oxygen, and potassium metal is formed at the cathode.
Step-by-step explanation:
In the electrolysis of KI (potassium iodide), when direct current electricity passes through the solution, iodine is formed at the anode instead of oxygen. At the cathode, potassium ions are reduced to form potassium metal. Therefore, in the electrolysis of KI, the products formed are iodine and potassium.