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Which acid is strongest?

benzoic acid

phenol

4-methoxybenzoic acid

benzenesulfonic acid

4-nitroaniline

1 Answer

3 votes

Answer:

Benzoic acid is a stronger acid than phenol because the benzoate ion is stabilised by two equivalent resonance structures in which the negative charge is present at the more electronegative oxygen atom. ... Thus, the benzoate ion is more stable than phenoxide ion. Hence, benzoic acid is a stronger acid than phenol.

User Nathan Dries
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