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Write the IUPAC name of the following:
Common nameStructural formulaIUPAC name
EthyleneCH2=CH2
Acetylene CHCH
Acetic acidCH3COOH
Methyl alcoholCH3OH
Ethyl alcoholCH3CH2OH
Acetaldehyde CH3CHO
Acetone CH3COCH3
Ethyl methyl ketoneCH3COCH2CH3
Ethyl amineCH3CH2NH2
n-propyl chlorideCH3CH2CH2Cl

Answer
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Hint: IUPAC gives us some rules for the naming of organic compounds which can also be referred to as nomenclature of organic compounds. IUPAC stands for International Union of Pure and Applied Chemistry.

Complete step-by-step answer: IUPAC nomenclature gives us information on writing the name of chemical compounds. There are some general rules for it. To write the name of this compound we have to follow some rules.
a. At first select the longest chain of carbon atoms
b. After that give the numbering to carbon atoms which are attached as side chains if any.
c. Now see about the functional group present and the position on which it attached.
Double bond i.e. alkene have prefix ene, triple bond i.e. alkyl have prefix yne, acid have prefix oic acid, alcohol have ol, acetone have one, acetaldehyde have al prefixes, amine is considered as amyl and presence of chlorine is known as chloride.
In this way we can assign IUPAC names
Common nameStructural formulaIUPAC name
EthyleneCH2=CH2Ethene
Acetylene CHCHEthyne
Acetic acidCH3COOHEthanoic acid
Methyl alcoholCH3OHMethanol
Ethyl alcoholCH3CH2OHEthanol
Acetaldehyde CH3CHOEthanal
Acetone CH3COCH3Propan-2-one
Ethyl methyl ketoneCH3COCH2CH3Butan-2-one
Ethyl amineCH3CH2NH2Ethylamine
n-propyl chlorideCH3CH2CH2ClPropyl chloride


Note:The main aim of the nomenclature IUPAC is to create an international standard for designating compounds to promote communication. The purpose of the system is to give a unique and unambiguous name to each structure so that no two structures' names get mixed or they can be identified easily.
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