(A) Benzoic Acid
(B) Acetic Acid
(C) Ethanol
(D) None of these
🧠 Explanation:
A benzene ring is a hexagonal arrangement of six carbon atoms connected by alternating single and double bonds, forming an aromatic compound. Substances containing a benzene ring are called aromatic compounds, and they often have distinct chemical properties, such as stability due to resonance. Common examples include toluene, phenol, aniline, and benzene itself. These compounds are widely used in industries for making dyes, plastics, medicines, and synthetic fibers. Recognizing the presence of a benzene ring is important in organic chemistry because it influences reactivity, toxicity, and applications, as well as environmental and health considerations linked to aromatic hydrocarbons.
