Question

Which one of the following is not a functional group?

• A. Carboxyl
• B. Isocyanamide
• C. Hydroxyl
• D. Carbonyl

Answer 1

Answer:

B. Isocyanamide

• Isocyanamide is a specific chemical compound with the molecular formula H₂N-NC rather than a general class of functional groups.

• On the other hand, carboxyl-COOH, hydroxyl OH, and carbonyl C=O are all classic, broad classifications of organic functional groups that determine the characteristic chemical reactions of entire families of molecules.