A-LevelChemistryHydroxy compoundsMay/June 2016Paper 1 Q281 Mark
How many of the following compounds produce a carboxylic acid on heating under reflux with an excess of hot acidified K₂Cr₂O₇? CH₃CH₂CHO, CH₃COCH₃, CH₃CH₂CH₂OH, CH₃CH(OH)CH₃
A1
B2
C3
D4
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The correct answer is B. This question tests the candidate's understanding of hydroxy compounds 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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