ddt

Question

DDT (dichlorodiphenyltrichloroethane) is:

RankGuru · Accepted Answer

**DDT** (2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane) was the first modern synthetic **insecticide**.
- Synthesis: Condensed from **Chloral ($CCl_3CHO$)** and two molecules of **Chlorobenzene** in the presence of concentrated sulfuric acid.
- Properties: Highly effective against mosquitoes (malaria) and lice (typhus). 
- Environmental Impact: It is extremely chemically stable and fat-soluble. It undergoes **biomagnification** in the food chain, leading to thin eggshells in birds and toxicity in fish. It is now banned in many countries.

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ddt

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