Answer
4-ethyl-2,4-dimethyldecane.
Work Step by Step
1. The longest carbon chain consists of 10 carbon atoms if we start counting from the left-hand side. Therefore, the base name for this alkane is decane.
2. To give substituent group the smallest number, counting is done from the right-hand side. There are two methyl groups present, one on carbon number 2 and the other on carbon number 4. Hence it is written as 2,4-dimethyl.
3. Also, an ethyl group is present on carbon number 4. So its written as 4-ethyl.
4. While naming the compound, Substituent Groups are written in alphabetical order, thus, 4-ethyl, 2,4-dimethyldecane.
