A-LevelChemistryOrganic synthesisMay/June 2021Paper 1 Q211 Mark
Hexadeca-10,12-dien-1-ol is produced by silk moths from hexadecanoic acid in a three-step enzymic process. [Reaction scheme from hexadecanoic acid to hexadeca-10,12-dien-1-ol] Which row contains correct descriptions of the three steps?
Astep 1: elimination, step 2: elimination, step 3: dehydration
Bstep 1: elimination, step 2: reduction, step 3: reduction
Cstep 1: oxidation, step 2: elimination, step 3: oxidation
Dstep 1: oxidation, step 2: oxidation, step 3: reduction
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of organic synthesis 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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