Skip to content
Question 61 of 72

Q.Give the structure and uses of DDT.

Tamil Nadu DgeTamil Nadu HSC First Year (DGE) Board 2020Subjective· 2mImportance★★★★★
85% · 61/72 Questions
🔒 Locked · start free trial →

You're viewing a preview — the full solution, concept, methods & PYQ mapping are locked.

Start your 14-day free trial to unlock the full solution →

DDT is (4-ClC6H4)2CH-CCl3, two para-chlorophenyl rings joined to a central CH-CCl3 unit; it was widely used as an insecticide, especially against malaria-spreading mosquitoes, though its environmental persistence has since caused it to be banned in many places.

DDT stands for dichlorodiphenyltrichloroethane. Its structure consists of a central carbon atom bonded to: one hydrogen atom, a -CCl3 (trichloromethyl) group, and two separate benzene rings, each carrying a chlorine substituent at the para position relative to the point of attachment. It can be written as (p-ClC6H4)2CH-CCl3.

Uses: DDT is a broad-spectrum, highly effective insecticide. Its most historically important use was in public-health programmes to kill mosquitoes and control the spread of malaria and typhus, which saved millions of lives in the mid-20th century. It was also widely used in agriculture as a pesticide to protect crops from insect damage.

…

Unlock everything free for 14 days

  • Full step-by-step solutions
  • Concept-first explanations
  • Methods, shortcuts & mistakes
  • PYQ mapping + timed mock tests

Full access for 14 days. No credit card required.