Answer
The alkane is named $ 5−ethyl−2,4−dimethyloctane$.
Work Step by Step
The longest continuous carbon chain has 8 carbon atoms (oct-). There is one methyl substituent at position 2, and another methyl substituent at position 4. There is one ethyl substituent at position 5. The substituents are listed in alphabetical order. Hence, the alkane is named $ 5−ethyl−2,4−dimethyloctane$.
