A-LevelChemistryGroup 17Oct/Nov 2023Paper 1 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.
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The correct answer is B. This question tests the candidate's understanding of group 17 within the Chemistrysyllabus. The examiner's mark scheme requires...
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