Which of the accompanying addresses the right IUPAC name for the mixtures concerned? 2,4,7-Trimethyloctane or 2,5,7-Trimethyloctane

Solution:

The locant number should begin from the base. Here, 2,4,7 is lower than 2,5,7. Subsequently, the right IUPAC name would be 2,4,7-Trimethyloctane.