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Which alkyl halide reacts fastest (or slowest) by SN1 or SN2

This type of question, asked 6 times: May 2022 S1, 22 Apr 2025 S1, 16 Apr 2026 S1, 13 May 2026 S2, 14 May 2026 S1, 15 May 2026 S2. All 7 questions below, oldest first.

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  1. Question 1

    May 2022 S1

    Image-based question showing structures of alkyl halides.
    59
    Which among the following compounds undergoes SN2 reaction fastest?

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  2. Question 2

    22 Apr 2025 S1

    84
    Which of the following has highest reactivity for SN1S_{N}1 reactions?

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  3. Question 3

    16 Apr 2026 S1

    39
    Which of the following alkyl halides undergoes SN1\mathrm{SN^1} reaction most readily?

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  4. Question 4

    16 Apr 2026 S1

    38
    Which of the following alkyl halides is hydrolyzed most rapidly by the SN2\mathrm{SN^2} mechanism ?

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  5. Question 5

    13 May 2026 S2

    37
    Which of the following alkyl halides is least reactive towards SN2\mathrm{SN^2} reaction?

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  6. Question 6

    14 May 2026 S1

    37
    Which of the following alkyl halides preferably undergoes alkaline hydrolysis by SN1SN^1 mechanism?

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  7. Question 7

    15 May 2026 S2

    35
    Which of the following alkyl halides undergo nucleophilic substitution either by SN2SN^2 or SN1SN^1 mechanism?

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