As we know, the Grignard reagents and nitriles can be prepared
from alkyl halides (refer Unit 6, Class XII) The above methods
Rationalised 2023-24
247
Aldehydes, Ketones and Carboxylic Acids
(3 and 4) are useful for converting alkyl halides into corresponding
carboxylic acids having one carbon atom more than that present in
alkyl halides (ascending the series) 5 From acyl halides and anhydrides
Acid chlorides when hydrolysed with water give carboxylic acids or more
readily hydrolysed with aqueous base to give carboxylate ions which on
acidification provide corresponding carboxylic acids