Iodoform, CHI3 is formed in methyl ketone, which gives yellow precipitate when there is a positive reaction. Iodoform test is performed in basic condition as the alpha proton is eliminated in basic condition. The elimination of the alpha proton causes the alpha carbon to be nucleophilic and allows it to attack iodine molecule. The presence of the iodine in the alpha carbon makes the two other hydrogens more acidic, therefore the two hydrogens get attacked by the nucleophilic base until all of them are replaced by the iodine. Then, the bond between carbonyl carbon and the carbon containing the iodine molecules will break and form an acid salt and iodoform which is a yellow precipitate (Razote, et al.,
Iodoform, CHI3 is formed in methyl ketone, which gives yellow precipitate when there is a positive reaction. Iodoform test is performed in basic condition as the alpha proton is eliminated in basic condition. The elimination of the alpha proton causes the alpha carbon to be nucleophilic and allows it to attack iodine molecule. The presence of the iodine in the alpha carbon makes the two other hydrogens more acidic, therefore the two hydrogens get attacked by the nucleophilic base until all of them are replaced by the iodine. Then, the bond between carbonyl carbon and the carbon containing the iodine molecules will break and form an acid salt and iodoform which is a yellow precipitate (Razote, et al.,