Question

write the molecular formula of first two members of formal homologous series having functional Group -cl

Answer 1

The first member of the homologous series is starting with the suffix meth.

Hence :

The first member that will contain the Group Cl is :

methyl choride

Then the second chloride is starting with the suffix eth .

Hence :

The second member of the group will be :

ethyl cholide

The structural formulas are as follows :

methyl chloride - CH₃Cl

ethyl chloride - C₂H₅Cl

Hope it helps !

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