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JEE Main Chemistry question

ChemistryOrganic Chemistry - Some Basic Principles and TechniquesJEE Main

Given (i) cyclohexanol, (ii) acetic acid, (iii) 2,4,6-trinitrophenol (picric acid) and (iv) phenol, the order of decreasing acidic character is

Answer: (A)

Solution

Picric acid (pKₐ ≈ 0.4, stabilised by three resonance-withdrawing nitro groups) is far more acidic than a carboxylic acid like acetic acid (pKₐ ≈ 4.8),

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Question ID VK-140287