A-LevelChemistryGroup 179701/12 · Oct/Nov 2023 · Q251 Mark
When concentrated sulfuric acid is added to solid sodium chloride, HCl is formed but not Cl2. When concentrated sulfuric acid is added to solid sodium iodide, I2 is formed. Which statement explains these observations?
ASulfuric acid is an oxidising agent and chloride ions are more easily oxidised than iodide ions.
BSulfuric acid is an oxidising agent and iodide ions are more easily oxidised than chloride ions.
CSulfuric acid is a reducing agent and chloride ions are more easily reduced than iodide ions.
DSulfuric acid is a reducing agent and iodide ions are more easily reduced than chloride ions.
✓ Correct answer
B: Sulfuric acid is an oxidising agent and iodide ions are more easily oxidised than chloride ions.
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Group 17 and see which topics are most likely to come up next.
Sign up free →