A-LevelChemistryOrganic synthesisFeb/Mar 2016Paper 1 Q401 Mark
Compound X has the molecular formula C₃H₆O₃. Heating X under reflux with acidified K₂Cr₂O₇ forms HO₂CCOCO₂H. Reacting X with NaBH₄ forms HOCH₂CH(OH)CH₂OH. What is a possible structural formula for X? 1 HOCH₂CH₂CO₂H 2 HOCH₂CH(OH)CHO 3 HOCH₂COCH₂OH
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 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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