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Highest enol content among given carbonyl compounds

This type of question, asked 3 times: 2021 Paper 5, 26 Jun 2022, 27 Jan 2024. All 3 questions below, oldest first.

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  1. Question 1

    2021 Paper 5

    44
    Assertion A: Enol form of acetone [CH3COCH3]\left\lbrack CH_{3}COCH_{3} \right\rbrack exists in <0.1%< 0.1\% quantity. However, the enol form of acetyl acetone [CH3COCH2OCCH3]\left\lbrack CH_{3}COCH_{2}OCCH_{3} \right\rbrack exists in approximately 15%15\% quantity. Reason R: enol form of acetyl acetone is stabilized by intramolecular hydrogen bonding, which is not possible in enol form of acetone. Choose the correct statement:

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  2. Question 2

    26 Jun 2022

    46
    Which will have the highest enol content?

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  3. Question 3

    27 Jan 2024

    32
    Highest enol content will be shown by:

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