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Environmental Tox- Quiz 2 Frequently Tested Actual Questions And Answers

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ENVIRONMENTAL TOX- QUIZ 2 FREQUENTLY TESTED ACTUAL QUESTIONS AND ANSWERS

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ENVIRONMENTAL TOX- QUIZ 2 FREQUENTLY TESTED ACTUAL
QUESTIONS AND ANSWERS

Question 1.
What functional group do the potentially carcinogenic nitrosamines contain?

Correct Answer: -N-N=O


Question 2.
Which of the following represents toluene?

Correct Answer: C6H5CH3


Question 3.
The oxidation state does not play a role in the toxicity of metals (t/f)

Correct Answer: False


Question 4.
What is the oxidation state of magnesium in MgCO3 (s)? 1) 2+ 2) 1+ 3) 0 4) 1-

Correct Answer: 2+


Question 5.
Which of the following is not an organohalide

Correct Answer: CH3CHSHCH2CH3


Question 6.
Kow is called an octanol-water partition coefficient. It is an equilibrium constant that
represent for the movement of a contaminant between octanol and water. Octanol is used
as a surrogate for the lipids in an organism. Which of the following chemicals is likely to be
present in the lipid of an aquatic organism at the greatest concentration? 1) PCB, log Kow
= 4.2 2) Benzenoic acid, log Kow = 1.9 3) CH3Hg+, log Kow = 2.3 4) DDT, log Kow = 6.5

Correct Answer: DDT, log Kow = 6.5


Question 7.
Which of the following is the monomer that is used to produce polyethylene plastic?

Correct Answer: CH2CH2


Question 8.
If 4 g of rotenone (C23H22O6) are applied to a 100-L pond, what is the concentration of
rotenone in the pond?

Correct Answer: 0.0001 M

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