Discussion Forum



1)

The compound that does not undergo haloform reaction is 


A) $CH_{3}CHO$

B) $CH_{3}CH_{2}OH$

C) $CH_{3}COCH_{3}$

D) $C_{2}H_{5}COCH_{2}CH_{3}$

Answer:

Option D

Explanation:

 The Haloform reaction is given by aldehydes and ketones containing three $\alpha$-H  atoms and alcohols containing 

1072021153_m16.PNG group

 In other words all the methyl ketones

1072021762_m17.PNG and only acetaldehyde (ethanal)

($CH_{3}CHO)$ can give this test

1072021168_m18.PNG

$CH_{3}CH_{2}OH$      $ \underrightarrow{NaOH+I_{2}}$     $CH_{}I_{3}+HCOO^{-}$

$C_{2}H_{5}COCH_{2}CH_{3}$      $ \underrightarrow{NaOH+I_{2}}$   does not give Haloform test.