Which of the following carbonyl compounds will yield a tertiary alcohol when reacted with methylmagn — Alcohols Phenols and Ethers Chemistry Question

💡 Solution & Explanation

Grignard reagents react with formaldehyde to give $1^\circ$ alcohols, with other aldehydes to give $2^\circ$ alcohols, and with ketones to give $3^\circ$ alcohols. Acetone is a ketone, yielding tert-butyl alcohol.