Question

Resonance structure of meta hydroxy benzoic acid .

Answer 1

Answer:

The structures of 3-hydroxybenzoic acid and 4-hydroxybenzoic acid have been determined by gas-phase electron diffraction using results from quantum chemical calculations to inform the choice of restraints applied to some of the structural parameters. The results from the study presented here demonstrate that resonance hybrids are not as helpful in rationalizing the structures of 2-, 3-, and 4-hydroxybenzoic acids as are models based upon electrostatic effects.

Answer 2

The benzoic acid show resonance. It is more acidic than aliphatic acid because the carboxylate ion is stabilised by resonance. The resonating structures are as follows -

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