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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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Functional groups are specific atoms or atom groups that determine the characteristic reactions and properties of organic compounds. Coverage includes alkenes, alkynes, halo, hydroxyl, ether, carbonyl, carboxyl, ester, amino and nitro groups, together with their structures, nomenclature and related homologous series.

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