SN1 reactions mostly result in partial racemization, in partial racemization there is:

Correct answer: D. More inversion and retention

  • A. Inversion only
  • B. Retention only
  • C. Equal inversion and retention
  • D. More inversion and retention

Explanation

In SN1 reactions, the formation of a planar carbocation allows for nucleophilic attack from either side, resulting in both inversion and retention. However, due to steric factors and the nature of the nucleophile, there tends to be more inversion than retention, leading to a mixture of products with both configurations, thus resulting in partial racemization.

This question appeared on the KMU MDCAT 2023 paper, which you can sit online with every answer explained.

Written and checked by , M.Phil ChemistryLast updated
Report an error

The more specific you are, the faster it gets fixed. A source beats an opinion.

Prefer email? [email protected]

About Nucleophilic Substitution

Nucleophilic substitution replaces a leaving group in an alkyl halide when an electron-rich nucleophile attacks the carbon atom. The topic compares SN1 and SN2 mechanisms, including reaction conditions, substrate structure, solvent effects, nucleophile strength, carbocation formation and stereochemical changes, and distinguishes substitution from elimination.

Practise Alkyl Halides

458 free Alkyl Halides MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Discussion

Stuck on an option, or know a faster way to get there? Ask or explain it here.

No comments yet. Be the first to explain this one.

Exams that ask Chemistry questions like this

Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

More Nucleophilic Substitution questions