The IUPAC name of HCONH2 is___________?
Correct answer: A. Methanamide
- A. Methanamide
- B. Methanoylamine
- C. Aminoethanol
- D. Formanide
Explanation
HCONH2 is the amide derived from methanoic acid by replacing the acid hydroxyl group with NH2. Amides are named by changing the -oic acid ending to -amide, so methanoic acid gives methanamide. The likely distractor is formanide, option d, which is not the current systematic IUPAC name.
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