A-LevelChemistryCarboxylic acids and derivativesMay/June 2016Paper 1 Q301 Mark
Compound X, C₄H₈O₂, has an unbranched carbon chain. An aqueous solution of X has an approximate pH of 3. Compound Y, C₃H₈O, is a secondary alcohol. X and Y are reacted together in the presence of a little concentrated sulfuric acid to form Z as the major organic product. What is the structural formula of Z?
A(CH₃)₂CHCO₂CH₂CH₂CH₃
BCH₃(CH₂)₂CO₂CH(CH₃)₂
CCH₃(CH₂)₂CO₂(CH₂)₂CH₃
D(CH₃)₂CHCO₂CH(CH₃)₂
✓ Correct Answer
The correct answer is B. 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