Identify the group that is ALWAYS treated as a substituent (prefix) and is NEVER considered a Princi — IUPAC and Nomenclature Chemistry Question

💡 Solution & Explanation

Ethers (Alkoxy groups), Halogens, Nitro, and Nitroso groups possess no priority order for serving as the PFG and are strictly named as substituents (prefixes) on the parent alkane chain.