Reference no: EM13794883
1. EPA uses what regulation to ban the use of compounds containing hexavalent chromium in cooling towers for air conditioners?
TSCA
RCRA
EPCRA
FIFRA
Question 2
What two chemicals can be used medicinally to cure dermatitis (from a bacterial/fungal origin) and eliminate or reduce effluent gases from many industrial sources?
Metallic nitrates and nitrites
Metallic sodium permanganate and potassium permanganate
Sodium hydroxide and hypochlorous acid
Phenol and phosgene
Question 3
Which of the following statements regarding oxidation numbers is FALSE?
The oxidation number of a monoatomic ion is the same as its ionic charge, such that the oxidation number of calcium is +2.
Each oxygen in KMnO4 has an oxidation number of -2 and the oxidation number of K is +1; therefore, the oxidation number on Mn in this compound is +7.
The oxidation number of each atom in an element is zero, such that the oxidation number of Cl2 is +2.
H2S contains sulfur which as an oxidation number of -2.
Question 4
What type of chlorinated organic compounds has largely displaced the use of calcium hypochlorite in home swimming pool sanitation products?
Bleach
Di- and tri-chloroisocyanuric acids
Chlorine dioxide
Ozone
Question 5
Which of the following statements concerning bulk storage of ammonium nitrate is FALSE?
The height of the storage pile should be no higher than 36" from the roof or the supporting and spreader beams overhead.
Storage piles should be sized and arranged so that all material in the pile is moved out periodically.
Ammonium nitrate should not be accepted for storage when the temperature of the product exceeds 100 degrees Fahrenheit.
Blasting agents should never be stored in the same building.
Question 6
Oxidizers react with all of the following EXCEPT:
fuels, oils, and sawdust.
coke and water.
lubricants and wood shavings.
vegetable fats and coal.
Question 7
Calcium hypochlorite is known by what name when it is used as a disinfectant in swimming pools?
CHC
HTH
Multi-chlor
Clorox
Question 8
What two chemicals reacted violently to destroy the S.S. Grandcamp and kill 600 people off the coast of Texas City, Texas?
Fuel oil and ammonium nitrate
Chromium oxychloride and potassium dichromate
Phenol and phosgene
Chlorine dioxide and sodium perchlorate
Question 9
What material can be used as an anesthetic by dentists and as a component in explosives?
Trichloroisocyanuric acid
Sodium dioxide
Potassium chloride
Ammonium nitrate
Question 10
Potassium dichromate is a strong oxidizer and therefore incompatible with which of the following substances?
Dilute acetic acid
Water and sodium hydroxide
Potassium hydroxide and water
Hydrochloric acid
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Hexavalent chromium in cooling towers for air conditioners
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