PYQ Vault

Class of alcohol from a Grignard reagent and an aldehyde or ketone

This type of question, asked 6 times: 3 May 2023 S1, 3 May 2023 S2, 13 Apr 2026 S1, 19 Apr 2026 S1, 20 Apr 2026 S1, 12 May 2026 S2. All 6 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    3 May 2023 S1

    80
    Which of the following on reaction with Grignard reagent followed by hydrolysis forms secondary alcohol?

    Tap an option to check your answer.

  2. Question 2

    3 May 2023 S2

    74
    What type of product is obtained when formaldehyde reacts with CH3MgBr\text{CH}_3\text{MgBr} in dry ether?

    Tap an option to check your answer.

  3. Question 3

    13 Apr 2026 S1

    39
    Identify the alcohol obtained when aldehyde other than formaldehyde is treated with Grignard's reagent followed by hydrolysis.

    Tap an option to check your answer.

  4. Question 4

    19 Apr 2026 S1

    42
    Identify the compound obtained when ethyl methyl ketone is treated with CH3MgBr\mathrm{CH_3MgBr} and hydrolyzed.

    Tap an option to check your answer.

  5. Question 5

    20 Apr 2026 S1

    40
    Which of the following on reaction with Grignard's reagent followed by hydrolysis forms tertiary alcohol ?

    Tap an option to check your answer.

  6. Question 6

    12 May 2026 S2

    38
    Which of the following reagents, when reacted with aldehydes other than formaldehyde, forms secondary alcohols?

    Tap an option to check your answer.