Which of the following is a secondary amine? A) CH₃CH₂CH₂CH₂NH₂ B) CH₃CH₂NHCH₂CH(CH₃)₂ C) (CH₃CH₂)₂NCH₂CH(CH₃)₂ D) (CH₃CH₂)₄N⁺OH^- E) (CH₃CH₂)₃CNH₂

Question

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In choice B, the functional group NH is directly attached to a carbon atom, making it a secondary amine. In choices A, C, D, and E, the NH group is attached to a nitrogen or a positively charged nitrogen, making them a primary amine, a tertiary amine, an ammonium salt, and a tertiary amine, respectively.

Which of the Following Is a Secondary Amine