MDCAT Chemistry MCQ #352

A student adds Iodine and NaOH to four different test tubes. Which compound will NOT produce a yellow precipitate of Iodoform?

MDCAT Chemistry MCQ #352

  1. Question 1

    Q1. A student adds Iodine and NaOH to four different test tubes. Which compound will NOT produce a yellow precipitate of Iodoform?

    • A) Ethanol
    • B) Propanone
    • C) Propanal
    • D) Ethanal

    Answer: Propanal

    Explanation: Iodoform test requires a methyl-keto group (CH3CO-). Propanal is an aldehyde without this specific grouping, so it yields no yellow precipitate.