An organic compound X ( molecular formula of C6H7O2N) has six atom in a ring systemtwo double bonds and also a nitro group as substituents
Correct answer: B. Hemicyclic and aromatic
- A. Heterocyclic
- B. Hemicyclic and aromatic
- C. Aromatic but not hemicyclic
- D. Hemicyclic but not aromatic
Explanation
Hemicyclic: The compound has a six-atom ring system, indicating a six-membered ring. A hemicyclic compound is a cyclic compound that does not form a complete closed ring but shares some characteristics with cyclic structures. In this case, the compound X forms a complete six-membered ring but is considered hemicyclic due to its conjugated structure.Aromatic: Despite having substituents (nitro group), the compound X is aromatic. It fulfills the criteria for aromaticity: it is planar, cyclic, and has a fully conjugated system with 4n+2π electrons (where n is an integer). The two double bonds and the nitro group contribute to the aromatic character of the compound.
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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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