A-LevelChemistryCarbonyl compounds9701/12 · Feb/Mar 2017 · Q281 Mark

CH₃CH₂COCH₂CH₃ reacts with hydrogen cyanide to form an organic product called a cyanohydrin. Which statement is correct?

AThe cyanohydrin product has one chiral centre.

BThe cyanohydrin product is formed by electrophilic addition.

CThe cyanohydrin product is formed via an intermediate which contains a C-OH group.

DThe formation of the cyanohydrin product requires the use of cyanide ions as a catalyst.

✓ Correct answer

D: The formation of the cyanohydrin product requires the use of cyanide ions as a catalyst.

Oracle Prep sorts past-paper questions by topic, so you can drill Carbonyl compounds and see which topics are most likely to come up next.

Topic: Carbonyl compounds, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2017 Paper 1 Variant 2, question 28.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content