Q. Which of the following compound give yellow precipitate with $I_{2}$ and NaOH?
A) $CH_{3}OH$
B) $CH_{3}CH_{2}CH_{2}OH$
C) $C_{2}H_{5}OC_{2}H_{5}$
D) $CH_{3}CH_{2}OH$
Explanation
(d)
Ethyl alcohol gives positive iodoform test ($i.e.$ , yellow ppt. with $I_{2}\$and NaOH).
$CH_{3}CH_{2}OH\ + \ 4I_{2}\ + \ 6NaOH\ \rightarrow \ \$
$CHI_{3} \downarrow \ \ + \ \ 5NaI\ \ + \ \ CH_{3}COONa\ \ + \ \ 3H_{2}O$
yellow
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.