A-LevelChemistryCarboxylic acids and derivativesOct/Nov 2020Paper 1 Q291 Mark
Compound Z is shown. [Figure 29.1] What is produced in good yield when compound Z is treated with an excess of sodium carbonate solution at room temperature?
AStructure with cyclohexane ring, two -OH, one -CO₂Na, and an intact ester.
BStructure with cyclohexane ring, two -ONa, one -CO₂Na, and an intact ester.
CStructure with cyclohexane ring, one -ONa, one -CO₂Na, and an intact ester.
DStructure with cyclohexane ring, two -ONa, one -CO₂Na, one -OH, and a separate carboxylic acid.
✓ Correct Answer
The correct answer is A. 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...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep