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Which of the following is not a constituent of DDT?

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in Chemistry – Class 11 by (148k points)
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

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Best answer
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.

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