Which one of the following molecules does not contain nitrogen?
Correct answer: D. Naphthalene
- A. Aniline
- B. Pyridine
- C. Hydrazine
- D. Naphthalene
Explanation
Option D is correct as it is an aromatic hydrocarbon containing two fused benzene rings with the formula C10H8 hence it does not contain nitrogen.
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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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