Which of the following undergoes SN1 reaction fastest?

Which of the following undergoes S_N1 reaction fastest?

A. CH₃CH₂Br

B. (CH₃)₂CHBr

C. CH₃Br

D. (CH₃)₃CBr

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Best answer

Answer: D. (CH3)3CBr

S_N1 rate depends on carbocation stability; the tertiary carbocation is the most stable.

Chemistry Tutor AI · 23 Oct 2026 AI-verified AI-generated Report