Answer: Tertiary alcohol.
- A Primary alcohol
- B Secondary alcohol
- C Tertiary alcohol
- D Ester
Correct answer: C. Tertiary alcohol
Explanation: Ketones give tertiary alcohols with Grignard reagents.
Curved arrows show the nucleophile attacking the carbonyl carbon while the C=O pi electrons move onto oxygen, giving a tetrahedral alkoxide intermediate.
Concept context
Aldehydes, ketones, carboxylic acids, and their derivatives (esters, amides, acid chlorides). Key reactions include nucleophilic addition, Aldol condensation, Cannizzaro, and Claisen. Very heavily tested in JEE and NEET.
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