A-LevelChemistryOrganic synthesisFeb/Mar 2017Paper 1 Q401 Mark
Propanoic acid occurs naturally as a result of the bacterial fermentation of milk and is partly responsible for the flavour of Swiss cheese. [Figure showing the structure of propanoic acid]. Which starting materials can be used to produce propanoic acid? 1 CH₃CH₂CH₂OH 2 CH₃CH₂CHO 3 CH₃CH₂CN
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 A. This question tests the candidate's understanding of organic synthesis 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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