(Solution) - The reaction of a methyl ketone with iodine solution in -(2025 Original AI-Free Solution)

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Academic Level: Undergrad. (yrs 3-4)

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The reaction of a methyl ketone with iodine solution in the presence of aqueous sodium hydroxide is shown in the equation below:
RCOCH3(?) + 3l2(aq) + 4NaOH(aq) ? RCOONa(aq) + CHl3(s) + 3Nal(aq) + 3H2O(?)
where R = H, alkyl or aryl group
i. Which part of the ketone molecule has been involved in the formation of an iodoform molecule?
ii. Use your answer to i to explain why cyclohexanone gives a negative reaction in the iodoform test.