Question

\[\begin{array}{cc}
\ce{O}\phantom{.........}\\
||\phantom{.........}\\
\ce{H - \underset{(A)}{C} - NH - CH3}
\end{array}\]

and 

\[\begin{array}{cc}
\ce{O}\\
||\\
\ce{CH3 - \underset{(B)}{C} - NH2}
\end{array}\]

are which type of isomers?

Options

• Positional Isomers

• Chain isomer

• Functional Isomers

• None of these

Answer 1

Functional Isomers

Explanation:

Because they create various types of amines, primary, secondary, and tertiary amines will exhibit functional group isomerism.

\[\begin{array}{cc}
\ce{O}\phantom{.........}\\
||\phantom{.........}\\
\ce{H - \underset{(A)}{C} - NH - CH3}
\end{array}\]

and 

\[\begin{array}{cc}
\ce{O}\\
||\\
\ce{CH3 - \underset{(B)}{C} - NH2}
\end{array}\]

(A) is secondary amine and (B) is primary amine. So they are functional isomers.