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Problem 5 - Olympiad
Which of the following reacts fastest under SN1 conditions?
A. Tertiary cycloalkyl halide
B. Allylic halide
C. Primary alkyl halide
D. Secondary alkyl halide
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Correct: A
Tertiary carbocations are most stable due to hyperconjugation and inductive effects, making tertiary cycloalkyl halides the fastest in SN1 reactions.