Question

Correct IUPAC name for \[\begin{array}{cc}
\ce{H3C - CH - CH - CH3}\\
\phantom{}|\phantom{......}|\phantom{..}\\
\phantom{..}\ce{C2H5}\phantom{..}\ce{C2H5}\phantom{}
\end{array}\] is ______.

Options

• 2-ethyl-3-methylpentane

• 3, 4-dimethylhexane

• 2-sec-butylbutane

• 2, 3-dimethylbutane

Answer 1

Correct IUPAC name for \[\begin{array}{cc}
\ce{H3C - CH - CH - CH3}\\
\phantom{}|\phantom{......}|\phantom{..}\\
\phantom{..}\ce{C2H5}\phantom{..}\ce{C2H5}\phantom{}
\end{array}\] is 3, 4-dimethylhexane.

Explanation:

\[\begin{array}{cc}
\ce{H3C - \overset{3}{C}H - \overset{4}{C}H - CH3}\\
\phantom{}|\phantom{......}|\phantom{..}\\
 \phantom{}\ce{\underset{3, 4-Dimethylhexane}{\phantom{.}\overset{1}{C}H3\overset{2}{C}H2\phantom{...}\overset{5}{C}H2\overset{6}{C}H3}}\phantom{}
\end{array}\]