benzoic acid is a weaker than para nitro benzoic acid
Answer Posted / imamul
p.nitro benzoic acid is more acidic than benzoic acid, because in case of p. nitro benzoic acid nitro group are -i effect operating group which withdraw electron toward itself and than benzene ring stabilises through resonance and therefore carboxylic acid group easily releases H+ ion than benzoic acid but in case of Benzoic acid it have no any effect operating group therefore it's less release of H+ion. And as we know that which compound fastly release H+ ion than those compound are more acidic
Hence above the disscution we can say that p.nitro benzoic acid is more acidic than benzoic acid.
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