AQA Jun 2017 Paper 2 Q4

Answers available below

The aldehyde CH3CH2CH2CH2CHO reacts with KCN followed by dilute acid to form a racemic mixture of the two stereoisomers of CH3CH2CH2CH2CH(OH)CN Give the IUPAC name of CH3CH2CH2CH2CH(OH)CN [1 mark] Describe how you would distinguish between separate samples of the two stereoisomers of CH3CH2CH2CH2CH(OH)CN [2 marks] Explain why the reaction produces a racemic mixture. [3 marks] 0 4 0 4 . 1 0 4 . 2 0 4 . 3 *08* IB/M/Jun17/7405/2<br /> 0 4 . 4An isomer of CH3CH2CH2CH2CHO reacts with KCN followed by dilute acid to form a compound that does not show stereoisomerism. Draw the structure of the compound formed and justify why it does not show stereoisomerism. [2 marks] Structure Justification Turn over for the next question *09* Turn overTypesetter code<br />

Show answer