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JAMB Chemistry 2011 Question 47

Question 47

Carbohydrates, Proteins and Amines

Which of the following is a primary amine?

  1. A.(CH3)3N
  2. B.CH3NH2
  3. C.CH3CONH2
  4. D.(CH3)2NH
Show the answer and explanation

Answer: B (CH3NH2)

Explanation

A primary amine has one alkyl group on the nitrogen (R−NH2). CH3CONH2 is an amide, not an amine.