The first member of the alkyne homologous ser | vedclass

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(B) The general formula for the alkyne homologous series is $C_nH_{2n-2}$,where $n$ represents the number of carbon atoms.For the first member,we set

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ethyne

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(B) The general formula for the alkyne homologous series is $C_nH_{2n-2}$,where $n$ represents the number of carbon atoms.For the first member,we set $n = 2$ because a triple bond requires at least two carbon atoms.Substituting $n = 2$ into the formula: $C_2H_{2(2)-2} = C_2H_{4-2} = C_2H_2$.This compound is known as ethyne (also called acetylene).Therefore,the first member of the alkyne series is ethyne.

The first member of the alkyne homologous series is:

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