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Stability order of carbocations

This type of question, asked 3 times: 3 May 2023 S2, 13 Apr 2026 S2, 19 May 2026 S2. All 3 questions below, oldest first.

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  1. Question 1

    3 May 2023 S2

    83
    Which from following carbocations is least stable?

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  2. Question 2

    13 Apr 2026 S2

    16
    Among the following, the most stable carbocation is

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  3. Question 3

    19 May 2026 S2

    16
    Which of the following is the most stable cation?

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