Which of the following is a primary amine?

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Question

(B) primary $(1^{\circ})$ amine is an amine where the nitrogen atom is attached to only one alkyl or aryl group,represented by the general formula $R-

Vedclass · Accepted Answer

Phenylmethanamine

Vedclass · Answer

(B) primary $(1^{\circ})$ amine is an amine where the nitrogen atom is attached to only one alkyl or aryl group,represented by the general formula $R-NH_2$.$1$. $N$-methylmethanamine $(CH_3-NH-CH_3)$ is a secondary $(2^{\circ})$ amine.$2$. Phenylmethanamine $(C_6H_5-CH_2-NH_2)$ has the $-NH_2$ group attached to a carbon atom,making it a primary $(1^{\circ})$ amine.$3$. $N$-phenylbenzenamine $(C_6H_5-NH-C_6H_5)$ is a secondary $(2^{\circ})$ amine.$4$. $N$-methylbenzenamine $(C_6H_5-NH-CH_3)$ is a secondary $(2^{\circ})$ amine.Therefore,Phenylmethanamine is the correct primary amine.

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