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Question 830003
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Haloalkanes and Haloarenes: SN1 reaction MCQ

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SN1 reactionEasyQuestion 830003

Question

SN1 reactions are favoured by:
  1. A
    Tertiary substrates and polar protic solvents
    Correct
  2. B
    Primary substrates and polar aprotic solvents
  3. C
    Gas phase conditions
  4. D
    Strong nucleophiles

Correct answer

Tertiary substrates and polar protic solvents

Explanation

SN1: unimolecular, two-step (carbocation intermediate). Favoured by: 3° > 2° > 1° substrates (stable carbocations), polar protic solvents (stabilise ions), weak/neutral nucleophiles.

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