MDCAT Chemistry MCQ #267

A chemist performs the Haloform reaction on a sample of 2-Pentanone using Iodine and Sodium Hydroxide. What specific physical observation indicates a positive reaction?

MDCAT Chemistry MCQ #267

  1. Question 1

    Q1. A chemist performs the Haloform reaction on a sample of 2-Pentanone using Iodine and Sodium Hydroxide. What specific physical observation indicates a positive reaction?

    • A) Red precipitate
    • B) Yellow crystals
    • C) Silver mirror
    • D) Colorless solution

    Answer: Yellow crystals

    Explanation: The Iodoform test yields yellow crystals of CHI3 in the presence of methyl ketones. Silver mirror is the result of Tollen's test on aldehydes.