Answer :
The reaction of a Grignard reagent with most aldehydes produces a primary alcohol, and the reaction of a Grignard reagent with a ketone produces a primary alcohol.
What is ketone?
Ketone is an organic compound that contains a carbonyl group (a carbon atom double-bonded to an oxygen atom) and two hydrocarbon groups connected to the carbonyl group. Ketones are produced naturally in the body as a by-product of fat breakdown and are an important energy source. They can also be produced artificially through various industrial processes.
This is because Grignard reagents can add to aldehydes and ketones to form a new carbon-carbon bond, which results in a new carbon center with a single bond to an oxygen atom (the alcohol group). This new carbon-oxygen bond leads to a primary alcohol, as the oxygen atom is only attached to one other carbon atom.
Therefore the correct option is D.
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