When naming a compound containing both double and triple bonds, which alphabetical formatting rule s — IUPAC and Nomenclature Chemistry Question

💡 Solution & Explanation

The primary suffix 'ene' is always written before 'yne' alphabetically. Because 'yne' starts with a vowel-sounding letter ('y'), the terminal 'e' of 'ene' is dropped (resulting in -en-yne).