NCERT · Class 12 · Chemistry · Aldehydes, Ketones and Carboxylic AcidsWrite the chemical equation for the preparation of acetic acid from methyl magnesium bromide.

Acetic acid can be successfully prepared by treating methyl magnesium bromide, a Grignard reagent, with solid carbon dioxide, commonly known as dry ice, followed by subsequent acid hydrolysis of the resulting magnesium salt. The Grignard reagent acts as a nucleophile, attacking the electrophilic carbon of carbon dioxide to form an addition adduct, which upon treatment with dilute hydrochloric acid yields acetic acid and magnesium hydroxybromide as inorganic byproducts.