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Question
Arrange the following in the increasing order of their property indicated:
4-Nitrobenzoic acid, benzoic acid, 3,4-Dinitrobenzoic acid, 4-Methoxy benzoic acid (Acid strength)
Solution
The increasing order of acidic strength of the following compounds is 4-methoxy benzoic acid < benzoic acid < 4-nitrobenzoic acid < 3,4-dinitrobenzoic acid. (Due to the presence of electron withdrawing group).
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