Q. The functional groups $–OH,\ - COOH,\ - CHO,\ - OCH_{3}$ attached to a chiral carbon is in the preference order
A) $OH > COOH > CHO > OCH_{3}$
B) $OCH_{3} > OH > CHO > COOH$
C) $OCH_{3} > OH > COOH > CHO$
D) $OCH_{3} > COOH > CHO > OH$
Explanation
(c)
If two atoms directly attached to the double bond have the same atomic number, then the elative priority of the groups is determined by a similar comparison of the atomic numbers of the next elements in the groups. Thus, the preference order of given group is
$OCH_{3} > OH > COOH > CHO$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.