Which of the following is a heterocyclic compound?
Correct answer: C. Pyridine
- A. Benzene
- B. Cyclohexane
- C. Pyridine
- D. Naphthalene
Explanation
A heterocyclic compound has a ring containing at least one atom other than carbon, and in pyridine one of the six ring positions is occupied by nitrogen. Benzene, cyclohexane and naphthalene are all carbocyclic, since their rings are made only of carbon. Furan, thiophene and pyrrole are the other common five membered heterocycles.
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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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