What happens to negative ions at the anode?

• A. They lose electrons and become neutral atoms
• B. They gain electrons and become negatively charged
• C. They remain unchanged
• D. They dissolve in the electrolyte

Answer: (A)

At the anode, oxidation happens. Negative ions move toward the positive electrode and lose electrons to it, turning into neutral species. The electrons travel through the external circuit to power the process. This is why negative ions are described as becoming neutral after losing electrons. For example, a halide ion loses electrons to form a neutral molecule of chlorine gas.