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Solution


Q.

Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their            [2018]
1 formation of intramolecular H-bonding  
2 formation of carboxylate ion  
3 more extensive association of carboxylic acid via van der Waals’ forces of attraction  
4 formation of intermolecular H-bonding  

Ans.

(4)