STANDARDChemistry-Organic Chemistry
STANDARD Chemistry IUPAC Nomenclature MCQ Question
Type: MCQ-conceptual-Medium
The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature is
A
−CONH₂, −CHO, −SO₃H, −COOH
B
−COOH, −SO₃, −CONH₂, −CHO
C
−SO₃H, −COOH, −CONH₂, −CHO
D
−CHO, −COOH, −SO₃H, −CONH₂
Correct Answer
Option B
Detailed Explanation
In IUPAC nomenclature, the priority order for functional groups is based on their oxidation state and reactivity. Carboxylic acids (−COOH) have the highest priority, followed by sulfonic acids (−SO₃H), amides (−CONH₂), and aldehydes (−CHO).
Found an issue with this question?