DP Chemistry (first assessment 2025)

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Question 23M.2.HL.TZ1.19a

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Date May 2023 Marks available [Maximum mark: 2] Reference code 23M.2.HL.TZ1.19a
Level HL Paper 2 Time zone TZ1
Command term Deduce Question number a Adapted from N/A
a.
[Maximum mark: 2]
23M.2.HL.TZ1.19a
(a)

A chiral auxiliary used in the synthesis of Taxol is trans-2-phenylcyclohexanol. Deduce and label with asterisks (*) the positions of the two chiral carbon atoms in the molecule.

[2]

Markscheme

one for each carbon correctly identified

 

Apply ‘list principle’ if any answer has more than two carbon atoms marked.