1.

Write down structural formulae of the first four members of the various homologous series formed by making use of the functional groups.

Answer»
Functional group Halo – X (Cl, Br, -I)Functional group Aldehyde – CHOFunctional group Carboxylic acid – COOHFunctional group Amine -NH2
CH3Cl ChloromethaneHCHO MethanalHCOOH Methanoic acidCH3NH2 Methenamine
CH3 – CH2 – Cl ChloroethaneCH3CHO EthanalCH3COOH Ethanoic acidCH3CH2NH2 Ethanamine
CH3 – CH2 – CH2 – Cl 1- ChloropropaneCH3CH2CHO PropanalCH3CH2COOH Propanoic acid CH3CH2CH2NH2 Propanamine
CH3 – CH2 – CH2 CH2 - Cl 1- ChlorobutaneCH3CH2CH2 CHO ButanalCH3CH2CH2COOH Butanoic acidCH3CH2CH2CH2NH2 Butanamine


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