A-LevelChemistryHydroxy compoundsMay/June 2017Paper 1 Q251 Mark
Compound X is a single, pure, optical isomer. X is heated with an excess of concentrated H₂SO₄. Only one organic product is formed. What could X be?
Acyclohexane ring with a hydroxyl group and a methyl group attached to the same carbon atom.
Bcyclohexane ring with a hydroxyl group and a methyl group attached to adjacent carbon atoms.
Ccyclohexane ring with a hydroxyl group and two methyl groups attached to adjacent carbon atoms, specifically a carbon with -OH and a carbon with two -CH₃ groups.
Dcyclohexane ring with a -CH₂OH group attached to one carbon atom.
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of hydroxy compounds 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