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Question

What is the IUPAC name of CH3CH2CHO?


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Solution

IUPAC Nomenclature

  • "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

Determination of Root Word

Select the continuous chain with the maximum number of carbon atoms

Here the chain is having 5 carbon atoms, hence root word will be “Prop”

Determination of names and positions of Locants

No substituent is present in the given compound.

Determination of Suffix

There is an aldehyde functional group, the suffix will be “al”

Hence, the IUPAC name of CH3CH2CHO is Propanal.


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