Practice question
Question
Arrange in increasing order of acid strength: Benzoic acid, 4-Nitrobenzoic acid, 4-Methoxybenzoic acid.
Explanation
Electron-withdrawing groups (e.g., nitro) increase acidity; electron-donating groups (e.g., methoxy) decrease it. Order: 4-Methoxybenzoic acid < Benzoic acid < 4-Nitrobenzoic acid.
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