Practice mode Aldehydes and Ketones

Which carbonyl compound gives a positive iodoform test?

Correct answer C. Propanone

Explanation

The iodoform test detects the CH₃CO– group. Propanone, CH₃COCH₃, contains it and forms yellow CHI₃. Propanal, pentan-3-one and methanal have no methyl group attached to the carbonyl carbon.

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