Question

Grignard reagents and organolithium compounds on addition to dry ice separately, followed by hydrolysis gives:

• A. ketones and carboxylic acids respectively
• B. carboxylic acids and ketones respectively
• C. only carboxylic acids
• D. only ketones

Answer 1

The correct option is B carboxylic acids and ketones respectively

Lithium $(EN=1.0)$ is less electronegative than $Mg(EN=1.2)$ therefore, organolithium compounds are more nucleophilic than Grignard reagents. As a result, organolithium compounds add more reactive ${CO}_2$ as well as less reactive resonance stabilised lithium salt of carboxylic acid thus, formed to produce ketones.