Carboxylic acids are distinctly acidic and ionise in water to give H_3O^+ ions. In general, electron withdrawing groups increase the acidity of carboxylic acids while electron donating groups decrease the acidity of the carboxylic acid. The electron releasing groups such as -CH_3-OH, -NH_2 and -OCH_3 make benzoic acid weaker while electron withdrawing groups such as -CI, -NO_2, etc., make benzoic acid stronger. The ortho isomer of every substituted benzoic acid is the strongest among the three isomers due to effect known as ortho effect. Carboxylic acids neutralise alkalies, decompose carbonates and bicarbonates evolving CO_2with brisk effervescence.Give a reaction for the preparation of benzoic acid using a Grignard reagent.

Carboxylic acids are distinctly acidic and ionise in water to give H_3

1.	Carboxylic acids are distinctly acidic and ionise in water to give H_3O^+ ions. In general, electron withdrawing groups increase the acidity of carboxylic acids while electron donating groups decrease the acidity of the carboxylic acid. The electron releasing groups such as -CH_3-OH, -NH_2 and -OCH_3 make benzoic acid weaker while electron withdrawing groups such as -CI, -NO_2, etc., make benzoic acid stronger. The ortho isomer of every substituted benzoic acid is the strongest among the three isomers due to effect known as ortho effect. Carboxylic acids neutralise alkalies, decompose carbonates and bicarbonates evolving CO_2with brisk effervescence.Give a reaction for the preparation of benzoic acid using a Grignard reagent.
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