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Major product of HX addition to an unsymmetrical alkene (Markovnikov's rule)

This type of question, asked 2 times: 25 Apr 2025 S2, 18 Apr 2026 S2. All 2 questions below, oldest first.

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  1. Question 1

    25 Apr 2025 S2

    80
    When 2-methylbut-2-ene is treated with hydrogen chloride, the major product formed is

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  2. Question 2

    18 Apr 2026 S2

    18
    The major product of the following reaction is CH3CH2−C∣CH3=CH−CH2CH3→HIProduct\mathrm{CH_3CH_2{-}\underset{\displaystyle CH_3}{\underset{|}{C}}{=}CH{-}CH_2CH_3 \xrightarrow{HI} Product}

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