Optical isomerism (A-level only)

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Question 4
Medium

Which of the following organic reactions does not produce a racemic mixture?

Electrophilic addition of HBr\text{HBr}HBr to pent-1-ene

Nucleophilic addition of HCN\text{HCN}HCN to propanal

Electrophilic addition of HBr\text{HBr}HBr to 2-methylbut-2-ene

Nucleophilic addition of HCN\text{HCN}HCN to butanone

Optical isomerism (A-level only) Questions

  1. A Level
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