A) 2-butanamine
B) N-methylpiperidine
C) N-methyl-2-pentanamine
D) p-anisidine
Correct Answer: C
Solution :
N-methyl-2-pentanamine is a secondary amine because it contains imino-group\[(\underset{|}{\mathop{NH}}\,)\] \[\underset{N-methyl-2-pentanamine\text{ }({{2}^{o}}\text{ }amine)}{\mathop{\overset{5}{\mathop{C{{H}_{3}}}}\,-\overset{4}{\mathop{C{{H}_{2}}}}\,-\overset{3}{\mathop{C{{H}_{2}}}}\,-\overset{2}{\mathop{\underset{\begin{align} & | \\ & NH \\ & | \\ & C{{H}_{2}} \\ \end{align}}{\mathop{CH}}\,-}}\,\overset{1}{\mathop{C{{H}_{3}}}}\,}}\,\]
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