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Why are carboxylic acids more acidic tha...

Why are carboxylic acids more acidic than alcohols or phenols although all of them have hydrogen atom attached to a oxygen atom (-O-H)?

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Carboxylic acids are more acidic than alcohol or phenol, although all of them have O-H bond. This can be explained on the basis of stability of conjugate base obtained after removal of `H^(+)` from acid or phenol.

Hence, dissociation of O-H bond in case of carboxylic acid become easier than that of phenol. Hence, carboxylic acid are stronger acid than phenol.
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Knowledge Check

  • Phenol is more acidic than

    A
    B
    C
    `C_(2)H_(2)`
    D
    Both (a) and (c)

  • Phenol is more acidic than :

    A
    `C_(2)H_(5)OH`
    B
    `CH_(3)COOH`
    C
    D

  • Phenol is more acidic than alcohol because :

    A
    phenol is more soluble in polar solvents
    B
    alcohol does not lose hydrogen atom
    C
    phenoxide ion is stabilised by resonance
    D
    phenoxide ion does not exhibit resonance

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