Q. Among the following the one that gives positive iodoform test upon reaction with $I_{2}$ and NaOH is
A) $CH_{3}CH_{2}CH(OH)CH_{2}CH_{3}$
B) $C_{6}H_{5}\ CH_{2}\ CH_{2}OH\$
C) $H_{3}C - CH - CH_{2}OH$
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$\ \ \ \ \ \ \ \ \ \ \ \ CH_{3}$
D) $PhCHOHCH_{3}$
Explanation
(d)
For positive iodoform test, alcohol molecule must have
$CH_{3} - CH -$ group.
|
OH
$Ph - CH - CH_{3}\overset{{\ \ \ I}_{2} + NaOH\ \ \ }{\rightarrow}CHI_{3} + Ph - COO^{-}$
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OH
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.