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NEET 2018, Chemistry Q12: Properties of Carboxylic acids

NEET2018Paper 2018Chemistry
Q.

Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their

  1. A

    Formation of intramolecular H-bonding

  2. B

    More extensive association of carboxylic acid via van der Waals force of attraction

  3. C

    Formation of carboxylate ion

  4. D

    Formation of intermolecular H-bonding

Solution

Due to formation of intermolecular H-bonding in carboxylic acid, association occurs. Hence boiling point increases and become more than the boiling point of aldehydes, ketones

and alcohols of comparable molecular masses.

Concept behind this question

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