A-LevelChemistryCarboxylic acids and derivativesMay/June 2012Paper 1 Q201 Mark
Use of the Data Booklet is relevant to this question. A sample of propyl ethanoate is hydrolysed by heating under reflux with aqueous sodium hydroxide. The two organic products of the hydrolysis are separated, purified and weighed. Out of the total mass of products obtained, what is the percentage by mass of each product?
A32.4% and 67.6%
B38.3% and 61.7%
C42.3% and 57.7%
D50.0% and 50.0%
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of carboxylic acids and derivatives 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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