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  4. Which of the following compound gives iodoform test?

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Q. Which of the following compound gives iodoform test?

JIPMERJIPMER 2005Aldehydes Ketones and Carboxylic Acids

Solution:

Compounds containing
$\left(CH_{3} -\overset{\underset{||}{O}}{C}- \right)$
group give the iodoform test.
$CH _{3}- \overset{\underset{||}{O}}{C} - CH _{3}+3 I _{2}+ Na OH \longrightarrow \underset{\text { Iodoform (yellow ppt) }}{ CHI _{3}+ HCOONa + H _{2} O }$
Hence only acetone gives the iodoform test.