Answer :
2-heptanol compound belongs to alcohol group.
Triethylamine compound belongs to amine group.
Benzoic acid compound belongs to carboxylic acid group.
Decanal compound belongs to aldehyde group.
Explanation :
Alcohol group : It is the class of organic compound in which the hydroxy (-OH) group is attached to a hydrocarbon is known as alcohols.
The general formula of alcohols are,
. According to the IUPAC naming, the alcohols are named as alkanols.
Amine group : It is the class of organic compound in which the amine
group is attached to a hydrocarbon is known as amine.
The general representation of amine are,
. According to the IUPAC naming, the amine are named as alkaneamines.
Carboxylic group : It is the class of organic compound in which the carboxylic (-COOH) group is attached to a hydrocarbon is known as carboxylic.
The general formula of carboxylic are,
. According to the IUPAC naming, the carboxylic are named as alkanoic acids.
Aldehyde group : It is the class of organic compound in which the (-CHO) group is attached to a hydrocarbon is known as aldehyde.
The general representation of aldehyde are,
. According to the IUPAC naming, the aldehyde are named as alkanals.