Q. The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature is
A) $- COOH,\ - SO_{3}H,\ - CONH_{2}, - CHO$
B) $- SO_{3}H, - COOH, - CONH_{2}, - CHO$
C) $- CHO, - COOH,SO_{3}H, - CONH_{2}$
D) $- CONH_{2}, - CHO, - SO_{3}H, - COOH$
Explanation
(a)
The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system is
$- COOH > SO_{3}H > - COOR > COCl > - CONH_{2} > - CN > - CH = O$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.