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Question 43 2, 3, 7, 8-TCDD (\"dioxin\") was formed historically as an unwanted

ID: 1710558 • Letter: Q

Question

Question 43

2, 3, 7, 8-TCDD ("dioxin") was formed historically as an unwanted during production of What is the current primary source of 2, 3, 7, 8-TCDD to the environment? tons a few kilograms or a few grams? The number of chlorinated PCB congeners is 209. The number of brominated PBDEs is 209. Why the same number? Be specific. Consider propane. How many different dichloro propane isomers are there? Draw them Which of the two types, co-planar and non-co-planar PCBs, is generally more toxic in the ways that dioxins are toxic. Why?

Explanation / Answer

2,3,7,8-TCDD was formed during the chlorine bleaching process during the production of pulp and paper.

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