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Reduction of a carboxylic acid to an alcohol (LiAlH4, diborane)

This type of question, asked 3 times: 20 Apr 2025 S2, 19 Apr 2026 S1, 13 May 2026 S2. All 3 questions below, oldest first.

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  1. Question 1

    20 Apr 2025 S2

    96
    Which among the following functional groups is reduced by diborane?

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  2. Question 2

    19 Apr 2026 S1

    40
    Which of the following pair of reagents is used for the conversion of carboxylic acid to alcohol ?

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  3. Question 3

    13 May 2026 S2

    42
    Which of the following compounds is obtained when an acetic acid is treated with reagent LiAlH4\mathrm{LiAlH_4}?

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