In IUPAC nomenclature, the correct order of decreasing priority of functional group is :
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JEE Main 2026 · 2 Apr · Shift 1, Chemistry question 65
Answer and worked solution
Official answer: C
IUPAC seniority. Acids > anhydrides > esters > acid halides > amides > nitriles > aldehydes > ketones > alcohols > amines > alkenes/alkynes.
- (A) puts the ketone before the aldehyde.
- (B) puts the ester after the amide.
- (D) puts the nitrile after the aldehyde.
- (C) > > > > ✓
(C)
Topics:IUPAC nomenclature