# Chapter 20 - Sections 20.1-20.14 - Exercises - Problems by Topic - Page 993: 55b

The name of the alkyne is $4,4-dimethyl-2-hexyne$.

#### Work Step by Step

The longest continuous carbon chain has 6 carbon atoms (hex-). The triple bond is given the lowest number, it is on position 2. There are two methyl substituents at position 4. Hence, the alkyne is named $4,4−dimethyl−2−hexyne$.

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