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Alcohol made from a Grignard reagent and a carbonyl compound

This type of question, asked 2 times: 13 May 2024 S2, 14 May 2024 S2. All 2 questions below, oldest first.

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  1. Question 1

    13 May 2024 S2

    76
    Which of the following is NOT prepared by the action of Grignard's reagent on methanal?

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  2. Question 2

    14 May 2024 S2

    73
    Identify the compound A in the following sequence: A→C2H5MgBr/dry ether→H3O+A \xrightarrow{C_2H_5MgBr/\text{dry ether}} \xrightarrow{H_3O^+} 3-Methylpentan-3-ol

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