Which is not a heterocyclic compound?
Correct answer: D. Ethane
- A. Furan
- B. Pyrrole
- C. Pyridine
- D. Ethane
Explanation
Ethane is not a heterocyclic compound. It is a simple hydrocarbon composed of two carbon atoms and six hydrogen atoms, with no heteroatoms (such as nitrogen, oxygen, sulfur) present in its structure. Heterocyclic compounds, on the other hand, contain at least one heteroatom in their ring structure. Therefore, option D is correct.
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About Fundamental Principles of Organic Chemistry
Organic chemistry begins with carbon compounds classified by carbon skeleton, saturation and functional group. Work includes identifying groups such as hydroxyl, carbonyl, carboxyl and amino, applying basic nomenclature, and distinguishing structural, geometric and optical isomers, where the same molecular formula does not necessarily mean the same structure or properties.
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