A-LevelChemistryGroup 17Oct/Nov 2010Paper 1 Q191 Mark
Concentrated sulfuric acid reacts with both solid sodium chloride at room temperature and with solid sodium iodide at room temperature. Which row correctly describes how concentrated sulfuric acid behaves in each of these reactions?
Awith sodium chloride as an oxidising agent only, with sodium iodide as an oxidising agent only
Bwith sodium chloride as a strong acid and as an oxidising agent, with sodium iodide as a strong acid only
Cwith sodium chloride as a strong acid only, with sodium iodide as a strong acid and as an oxidising agent
Dwith sodium chloride as a strong acid only, with sodium iodide as a strong acid only
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of group 17 within the Chemistrysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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