Question
$CH _3- CHO$

Answer

Number of carbon atoms: 2
Parent alkane: Ethane
Functional group: - $CHO ( al )$
If the carbon chain of the compound contains a $- CHO$ group, then change the ending of the parent name, i.e., 'e' of ethane is replaced by 'al'.
Parent suffix: Ethanal
IUPAC name: Ethanal

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