Which of the following is not a constituent of DDT?
(a) Carbon
(b) Fluorine
(c) Chlorine
(d) Hydrogen
I have been asked this question in class test.
My question is taken from Environmental Pollution topic in division Environmental Chemistry of Chemistry – Class 11
Select the correct answer from above options
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Right choice is (b) Fluorine
The best I can explain: Fluorine is not a constituent of DDT. DDT is dichlorodiphenyltrichloroethane which has a chemical formula of C14H9Cl5. Therefore, DDT does not contain fluorine, which is evident from the chemical formula. It also contains impurities in small quantities, i.e., about 15% of its composition. The major component which comprises of 77% of the substance is its para isomer.