Which one of the following is not a heterocyclic compounds?
Correct answer: B. Anthracene
- A. Thiophene
- B. Anthracene
- C. Furan
- D. Pyrrole
Explanation
Anthracene is a Polycyclic Aromatic Hydrocarbon (PAH) with the formula C14H10. It is a solid at room temperature and has a melting point of 215 °C and a boiling point of 340 °C. Anthracene is colorless but exhibits a blue fluorescence under ultraviolet light.
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About Classification of Organic Compounds
Organic compounds are classified by carbon skeleton into open-chain, branched-chain and cyclic compounds, including homocyclic and heterocyclic types. The classification also uses functional groups to distinguish hydrocarbons, halo compounds, alcohols, aldehydes, ketones, carboxylic acids and their derivatives, which is different from naming compounds by IUPAC rules.
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