JEE Main Chemistry question

Which responds to the iodoform test?

(A)Butanol
(B)Butan-1-al
(C)Butanone-2Correct
(D)3-pentanone

Answer: (C)

Solution

The iodoform test is positive for compounds containing a methyl ketone group () or a (secondary alcohol with a methyl group on the carbinol carbon) group. Butan-2-one, CH_3-CO-CH_2CH_3, has the required group and gives a positive test.

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Question ID VK-148102