UPSC Combined Geo-Scientist, Mains · 2020 · Mains Paper III
Q6(c). Cyanohydrin formation and hydrolysis
Question
Acetone reacts with NaCN/H₂SO₄ to give A; A is treated with H₂SO₄/H₂O to give B. Identify both.
Answer in brief
A is acetone cyanohydrin; B is 2-hydroxy-2-methylpropanoic acid.
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CoversCyanohydrin formationhydrolysisCarbonyl addition
All parts of Question 6
- 6(a) Dichlorocarbene ring expansion4 marks
- 6(b) Anionic polymerisation of substituted styrenes4 marks
- 6(c) Cyanohydrin formation and hydrolysis4 marks
- 6(d) Doebner condensation4 marks
- 6(e) Hydration with skeletal rearrangement4 marks
- 6(f) Diene reactivity in Diels–Alder reactions4 marks
- 6(g) Norrish II reactivity4 marks
- 6(h) UV maximum of a dienone4 marks
- 6(i) Carbonyl stretching frequencies4 marks
- 6(j) Distinguishing three carbonyl compounds by proton NMR4 marks