Question Detail
Question
What is the product of exhaustive methylation of a tertiary amine with excess CH₃I?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Tertiary amines react with excess methyl iodide to form quaternary ammonium salts (R₄N⁺ X⁻), which are useful as phase-transfer catalysts.
Hint
Four alkyl groups on nitrogen.