Polyhalogen compounds - class-XII

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Multiple Choice

Which of the following statements is not correct?

  1. DDT and BHC are not good insecticides because they are highly soluble in water.
  2. DDT and BHC are not good insecticides because they are absorbed by the soil and contaminate root corps.
  3. Aldrin is not a good insecticide because it is not biodegradable.
  4. All of the above are incorrect.
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