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The solubility of carboxylic acids _________ with the increase in size of alkyl groups.

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in Chemistry – Class 12 by (188k points)
The solubility of carboxylic acids _________ with the increase in size of alkyl groups.

(a) increases

(b) decreases

(c) remains same

(d) varies unpredictably

The question was posed to me in class test.

I need to ask this question from Carboxylic Acids Physical Properties in section Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

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Right choice is (b) decreases

Easiest explanation: This is because of the reduced polarity and hinderance provided by the large alkyl groups to the COOH group from involving in the hydrogen bonding with solvent molecules.

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