Identify the intermediate formed in Grignard reagent reaction with ester?

Aldehyde

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Ketone

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Benzene

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Propene

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Solution

The correct option is B Ketone

The intermediate formed in Grignard reagent reaction with ester is a ketone.

Note:
Ester reacts with 2 equivalents of Grignard reagent, followed by acid hydrolysis to form tertiary alcohol.

Example as shown.

Option B is correct.

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