Dichloro diphenyl ________________ represents the full chemical designation of the insecticide DDT ?
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Answer: B. Trichloroethane
Explanation
The full systematic chemical name for DDT includes trichloroethane in its designation. Molecular substitution attaches a trichloroethane group to two chlorophenyl ring structures. Chemical nomenclature rules define the precise positioning of chlorine atoms on the molecule. DDT stands for dichlorodiphenyltrichloroethane, a well-known synthetic organochlorine insecticide. The chemical synthesis involves condensing chloral with chlorobenzene in an acidic medium. Organochlorine compounds are characterized by high chemical stability and environmental persistence.
DDT was historically used to control disease vectors like mosquitoes carrying malaria. Environmental concerns regarding bioaccumulation eventually led to widespread global bans on DDT. Understanding chemical nomenclature is fundamental for identifying hazardous pesticide compounds. Tetrachloroethane contains four chlorine atoms instead of the three found in DDT. Tetrachloromethane is carbon tetrachloride, a completely different chlorinated hydrocarbon solvent. Trichloromethane is chloroform, which acts as an anesthetic and industrial solvent.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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