Question

The IUPAC nomenclature for ethyl isobutyl ketone is ____________.

Options

• 5-methylhexan-3-one

• 2, 2-dimethylpentan-3-one

• 4-ethylhexan-3-one

• 1, 2-dimethylpentan-4-one

Answer 1

The IUPAC nomenclature for ethyl isobutyl ketone is 5-methylhexan-3-one.

Explanation:

\[\begin{array}{cc}
\phantom{........}\ce{O}\phantom{..........}\ce{CH3}\phantom{}\\
\phantom{......}||\phantom{...........}|\phantom{.}\\
\ce{\underset{\underset{(Ethyl isobutyl ketone)}{5-Methylhexan-3-one}}{CH3 - CH2 - C - CH2 - CH - CH3}}
\end{array}\]