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Why Pka of F-CH2-COOH is Lower than that of Cl−CH2−COOH? - Chemistry

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Why pKa of F-CH2-COOH is lower than that of Cl−CH2−COOH?

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Solution

Fluorine is more electronegative than chlorine. The presence of fluorine in a molecule will make it more acidic. Thus, the pKa of F−​CH2−COOH is lower than that of Cl−CH2−​COOH.

Concept: Acids - Chemical Reactions of Carboxylic Acids - Reactions Involving Cleavege of O-H Bond
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