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Which compound has only one OH group (is not dihydric): crotonyl alcohol

The same question, asked 2 times: 10 May 2023 S1, 19 Apr 2026 S1. Every wording below, oldest first.

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  1. Question 1

    10 May 2023 S1

    51
    Which from following is NOT a dihydric compound?

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  2. Question 2

    19 Apr 2026 S1

    41
    Which from the following hydroxy compounds contain only one −OH\mathrm{-OH} group in a molecule?

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