A-LevelChemistryGroup 17Feb/Mar 2017Paper 1 Q361 Mark
Sodium chloride and sodium iodide react with concentrated sulfuric acid. Which statements are correct? 1 Sodium chloride is not oxidised by concentrated sulfuric acid. 2 No colour change is seen when concentrated sulfuric acid is added to sodium chloride. 3 Sodium iodide is oxidised by concentrated sulfuric acid.
A1, 2 and 3 are correct
B1 and 2 only are correct
C2 and 3 only are correct
D1 only is correct
✓ Correct Answer
The correct answer is A. 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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