alleryA Grignard reagent R'MgX reacts with a **ketone (R₂C=O)** to produce, after hydrolysis:
AA tertiary alcohol - R₂C(R')(OH)
BA primary alcohol
CA secondary alcohol
DA carboxylic acid
Answer & Solution
Correct answer: A. A tertiary alcohol - R₂C(R')(OH)
**Ketone + R'MgX → R₂C(OR'MgX) → (H₂O) → R₂C(OH)R'**.
Three R-groups + one OH on the new carbon = **tertiary alcohol**.
E.g., propanone + CH₃MgBr → 2-methylpropan-2-ol (t-butanol).
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