IB skill practice

Explain nucleophilic substitution mechanisms

Paper 1, Paper 2 5 marks Difficulty 5

Stereochemical evidence in SN2

A substitution in a Melbourne organic chemistry tutorial occurs by backside attack at a chiral carbon. State the stereochemical outcome expected for an SN2 reaction. Enter the answer and choose the interpretation that matches the HL chemistry evidence.

Worked practice: chemistry evidence and answer

Use the chemical evidence first, then enter the result and interpretation that match it.