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NEET 2007 Chemistry question

ChemistryAldehydes, Ketones and Carboxylic AcidsNEET 2007

Which of the following presents the correct order of the acidity in the given compounds?

Answer: (1)

Solution

Electron-withdrawing substituents (-I effect) on the alpha carbon stabilise the carboxylate anion and increase acidity, and the effect grows with electronegativity: . The methyl group is electron-donating (+I)

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Question ID VK-089869