CH-1780
Electrolysis of molten compounds
Chemistry · Secondary 4 · Easy · Electrolysis of molten compounds
A student electrolyses molten lead(II) bromide using inert electrodes. Which ionic equation correctly represents the reaction at the cathode?
- Pb²⁺ + 2e⁻ → Pb
- Pb → Pb²⁺ + 2e⁻
- 2Br⁻ → Br₂ + 2e⁻
- Br₂ + 2e⁻ → 2Br⁻
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.