The correct answer is a: Furan, b: Pyridine, c: ThiopheneKey Points

• Furan is a heterocyclic organic compound containing a five-membered aromatic ring with one oxygen atom.
• Toluene is a colorless liquid with a sweet, pungent odor.
  • It is a common solvent and used as a precursor to many chemicals.
• Pyridine is a heterocyclic aromatic compound with a six-membered ring containing five carbon atoms and one nitrogen atom.
  • It is used as a solvent, catalyst, and precursor to many chemicals.

  Additional Information

• Thiophene is a heterocyclic compound containing a five-membered aromatic ring with one sulfur atom.
  • It is used as a solvent and in the production of pharmaceuticals and agrochemicals.
• Aniline is an aromatic amine with a benzene ring and a primary amine group.
  • It is used in the production of dyes, pharmaceuticals, and rubber processing chemicals.
• Anisole is an organic compound with a methoxy group (-OCH3) attached to a benzene ring.
  • It is used as a solvent and in the production of perfumes and flavors.