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JEE Main Chemistry question

ChemistryAldehydes, Ketones and Carboxylic AcidsJEE Main

The correct order of increasing acid strength of the compounds (A) CH₃CO₂H, (B) MeOCH₂CO₂H, (C) a halogen-substituted acetic acid (more strongly electron-withdrawing than OMe), and (D) Me₂C(Me)CO₂H (pivalic acid) is:

Answer: (C)

Solution

Increasing electron-withdrawal at or near the α-carbon increases acid strength: the bulky, purely alkyl-substituted pivalic acid (D) is weakest, plain acetic acid (A) is next,

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Question ID VK-150060