Question

The IUPAC name of the following compound is

• A. 2-Butanone
• B. 2-Methyl propanal
• C. 2-Butanol
• D. But-2-en-1-ol

Answer 1

The correct option is C 2-Butanol

Let us begin by numbering the longest chain. No matter which outer carbon we start with, the longest chain is 6 carbons long.

There are two methyl substituents. One is at carbon number 2 and another one is at carbon number 4. Hence, the name is 2, 4- dimethyl hexane.