Question

Which of the following pairs can be distinguished by sodium hypoiodite?

• A. $CH_3CHO \, and \, CH_3COCH_3 $
• B. $CH_3CH_2CHO \, and \, CH_3COCH_3$
• C. $CH_3CH_2OH \, and \, CH_3CH_2CHOHCH_3$
• D. $CH_3OH \, and\, CH_3CH_2CHO$
• E. $CH_3OH \, and \, CH_3CH_2CH_2OH$

Answer 1

Answer: (B)

$CH_3CH_2CHO \, and \, CH_3COCH_3$ can be distinguished by sodium hypoiodite.
$CH_3COCH_3$ gives yellow preciprtate of iodoform when heated with NaOI. $CH_3CH_2CHO$ does not give iodofonn.