A-LevelChemistryHalogen derivativesFeb/Mar 2017Paper 1 Q381 Mark
Which statements help to explain the mechanism of the reaction between 1-chloropropane and ammonia? 1 1-chloropropane has a δ− chlorine atom that forms hydrogen bonds with a δ+ hydrogen atom in ammonia. 2 1-chloropropane is a polar compound with a δ+ carbon atom. 3 There is a lone pair of electrons on the nitrogen atom in ammonia.
A1, 2 and 3 are correct
B1 and 2 only are correct
C2 and 3 only are correct
D1 only is correct
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The correct answer is C. This question tests the candidate's understanding of halogen derivatives within the Chemistrysyllabus. The examiner's mark scheme requires...
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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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