O-LevelChemistryElectrolysis5070/11 · Oct/Nov 2022 · Q191 Mark
Which pair of equations correctly represents the reactions taking place at the anode and at the cathode during the electrolysis of molten silver bromide?
A2Br⁻ → Br2 + 2e⁻ Ag²⁺ + 2e⁻ → Ag
BBr2 → Br2 + 2e⁻ Ag⁺ + e⁻ → Ag
C2Br⁻ → Br2 + 2e⁻ Ag⁺ + e⁻ → Ag
DAg⁺ + e⁻ → Ag 2Br⁻ → Br2 + 2e⁻
✓ Correct answer
C: 2Br⁻ → Br2 + 2e⁻ Ag⁺ + e⁻ → Ag
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Electrolysis and see which topics are most likely to come up next.
Sign up free →