Question

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 1

Answer: (D)

The Haloform reaction is given by aldehydes and ketones containing three $\alpha- H$ atoms and alcohols containing group. In other words all the methyl ketones

and only acetaldehyde (ethanal) $\left( CH _{3} CHO \right)$ can give this test.



$CH _{3} CH _{2} OH \stackrel{ NaOH + I _{2}}{\longrightarrow } CHI _{3}+ HCOO ^{-}$

$C _{2} H _{5} COCH _{2} CH _{3} \stackrel{ NaOH + I _{2}}{\longrightarrow }$ does not give Haloform test.