Which gives positive iodoform test?
ABoth CH₃CH₂OH and acetone (have CH₃-CHOH or CH₃-CO group)
BCH₃CH₂OH
CAcetone only
DCH₃OH
Answer & Solution
Correct answer: A. Both CH₃CH₂OH and acetone (have CH₃-CHOH or CH₃-CO group)
Iodoform test (I₂/NaOH → yellow CHI₃) positive for CH₃-CO-R (methyl ketones) or CH₃-CHOH-R (which oxidizes to methyl ketone). Hence acetone, acetaldehyde, ethanol all positive. Methanol negative.
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