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Q.

Statement 1: The pKa of acetic acid is lower than that of phenol.Statement 2: Phenoxide ion is more resonance stabilized.

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a

Both statements 1 and 2 are correct

b

Statement 1 is correct and statement 2 is incorrect

c

Statement 1 is incorrect and statement 2 is correct

d

Both statements 1 and 2 are incorrect

answer is B.

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Detailed Solution

Low pKa value corresponds to more acidic compound. Acetic lcid (pKa = 4.0) is more acidic than phenol (pKa = 9.0). It is due to the fact that carboxylate ion is more stabilized due to resonance because its resonating structures are equivalent.
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