Correct Answer: Option D

Explanation

The general formula for the alkyne homologous series is C\(_n\)H\(_{2n−2}\), where n is the number of carbon atoms. The first member of the series has n=2 (ethyne), as a minimum of two carbon atoms is required for a triple bond. 

The 5th member of the alkyne series is hexyne (C\(_6\)H\(_{10}\)). 

There is an explanation video available below.

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