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Identify the arene that gives 2- and 4-substituted chloro products in a Friedel-Crafts reaction

The same question, asked 3 times: 11 May 2024 S1, 25 Apr 2025 S1*, 26 Apr 2025 S2. Every wording below, oldest first.

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  1. Question 1

    11 May 2024 S1

    97
    Identify A in the following reaction. A + Chloromethane →Anhydrous AlCl3\xrightarrow{\text{Anhydrous }AlCl_3} 2-Chlorotoluene + 4-Chlorotoluene

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  2. Question 2

    25 Apr 2025 S1

    84
    Identify ' AA ' in the following reaction.
    A(excess)+Acetyl chloride(excess)→Anhydrous AlCl3\underset{\text{(excess)}}{A}+\underset{\text{(excess)}}{\text{Acetyl chloride}}\xrightarrow{\text{Anhydrous AlCl}_3}
    2-Chloroacetophenone + 4-Chloroacetophenone

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  3. Question 3

    26 Apr 2025 S2

    82
    Identify ' AA ' in the following reaction. A+A + chloromethane →Anhydrous AlCl3\xrightarrow{\text{Anhydrous AlCl}_3} 2-chlorotoluene + 4-chlorotoluene

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