What is the common name of 2-methylbutane?
A) isopentane
B) neopentane
C) 2-methylisopropane
D) none of these

Question

Quizplus · Accepted Answer

The common name of 2-methylbutane is isopentane. The prefix "iso-" indicates that the methyl group is attached to the second carbon atom from the end of the longest continuous carbon chain, resulting in a straight chain of five carbon atoms (pentane) with a methyl group on the second carbon (isopentane). "Neopentane" refers to a different molecule with the formula C5H12, while "2-methylisopropane" is not a valid name for any molecule.

What Is the Common Name of 2-Methylbutane