The carboxylic acid of least acidic strength among the following is:- – InterviewSolution

1.	The carboxylic acid of least acidic strength among the following is:-
Answer» p-nitrobenzoic acid p-methylbenzoic acid p-chlorobenzoic acid p-methoxybenzoic acid Solution :Electron donating groups decrease acid strength of benzoic acid and electron WITHDRAWING groups increase acidic STRENTH. Order of +I effect is `-OM E gt -Me,` so, p-methoxy benzoic acid is weaker acid than p-methylbenzoic acid.

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