“In order to clearly identify the compound, a systematic method of naming has been developed and is known as the IUPAC (Internation Union of Pure and Applied Chemistry) system of nomenclature.”
Rules of IUPAC nomenclature of ethylene
Determination of Root Word
Select the continuous chain with the maximum number of carbon atoms
Here the chain is having 2 carbon atoms, hence root word will be “eth”
2: Determination of names and positions of Locants
There is no substituent in the given compounds.
3: Determination of Suffix
As this compound is unsaturated and as there are no functional groups, the suffix will be “ene”
Rules of IUPAC nomenclature of acetylene
Determination of Root Word
Select the continuous chain with the maximum number of carbon atoms
Here the chain is having 2 carbon atoms, hence root word will be “eth”
2: Determination of names and positions of Locants
There is no substituent in the given compounds.
3: Determination of Suffix
As this compound is unsaturated (triple bond is present), the suffix will be “yne”.
Hence, the IUPAC name of ethylene is Ethene and acetylene is Ethyne .
