PYQ Vault

Alkylation of amines with alkyl halides (Hofmann exhaustive alkylation)

This type of question, asked 4 times: 2 May 2023 S1, 11 May 2024 S2, 17 Apr 2026 S1, 18 Apr 2026 S1. All 4 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    2 May 2023 S1

    62
    How many moles of iodomethane are consumed in the following conversion? CH3NH2→CH3I(CH3)4N+I−\text{CH}_3\text{NH}_2 \xrightarrow{\text{CH}_3\text{I}} (\text{CH}_3)_4\text{N}^+\text{I}^-

    Tap an option to check your answer.

  2. Question 2

    11 May 2024 S2

    87
    Identify the final product formed on ammonolysis of benzyl chloride followed by the reaction with two moles of CH3I\text{CH}_3\text{I}.

    Tap an option to check your answer.

  3. Question 3

    17 Apr 2026 S1

    43
    Identify the major product obtained when ethyl amine is reacted with excess of methyl iodide ?

    Tap an option to check your answer.

  4. Question 4

    18 Apr 2026 S1

    45
    Which from following statements is NOT correct regarding Hofmann's exhaustive alkylation?

    Tap an option to check your answer.