A-LevelChemistryHydrocarbonsOct/Nov 2014Paper 1 Q301 Mark
β-carotene is responsible for the orange colour of carrots. [Figure showing the chemical structure of β-carotene.] β-carotene is oxidised by hot, concentrated, acidified KMnO₄. When an individual molecule of β-carotene is oxidised in this way, many product molecules are formed. How many of these product molecules contain a ketone functional group?
A4
B6
C9
D11
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of hydrocarbons 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