Question

Hydrolysis of the adduct formed form the reaction of ________ with methyl magnesium bromide gives 2-Methylpropan-2-ol.

• A. Methanal
• B. Ethanal
• C. Propanal
• D. Propanone

Answer 1

The correct option is D Propanone

Grignard reagent react with formaldehyde to form $1^{\circ }$ alcohol.
Grignard reagent react with aldehyde except formaldehyde to form $2^{\circ }$ alcohol.
Grignard reagent react with ketone to form $3^{\circ }$ alcohol.
2-Methylpropan-2-ol is a tertiary alcohol which is produced from the hydrolysis of the adduct formed between a ketone and a Grignard reagent. Hence option (d) is correct.