A-LevelChemistryIntroduction to organic chemistry9701/12 · Feb/Mar 2021 · Q201 Mark
The structures of citric acid and isocitric acid are shown. [Figure showing structures of citric acid and isocitric acid] How many chiral centres does each acid possess? citric acid isocitric acid A 1 1 B 1 2 C 0 1 D 0 2
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Acitric acid 1, isocitric acid 1
Bcitric acid 1, isocitric acid 2
Ccitric acid 0, isocitric acid 1
Dcitric acid 0, isocitric acid 2
✓ Correct answer
D: citric acid 0, isocitric acid 2
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