The carbonyl compounds which contains the CH3CO− or the CH3C(H) (OH)-compounds undergo the iodoform reaction. Benzyl alcohol, Methanol, Diethyl ketone, acetic acid do not give iodoform test. Caution Compounds that give positive Iodoform Test are Acetaldehyde, Methyl Ketone, Ethanol, Secondary Alcohols that contain methyl groups in alpha position.
Which one of the following will not form a yellow precipitate on heating with an alkaline solution of iodine?
NEET UG 2004 — Chemistry Organic Chemistry
2004mcqmedium
Which one of the following will not form a yellow precipitate on heating with an alkaline solution of iodine?
Official previous-year question
Held on 30 Apr 2004 · Verified 9 Jul 2026.
Options
- A
CH3CH(OH)CH3
- B
CH3CH2CH(OH)CH3
- C
CH3OH
- D
CH3CH2OH
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