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Aquatic Chemistry: Organically Bound Metals and Metalloids

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Aquatic Chemistry: Organically Bound Metals and Metalloids

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Questions and Answers

What is the characteristic of organometallic compounds in water?

They are not significant water pollutants

They have a weak influence on the growth of algae

They dissociate reversibly at lower pH

They contain metals bound to organic entities by a carbon atom (correct)

What is the primary application of organotin compounds?

Pharmaceuticals and medical research

Water treatment and purification

Fungicides, disinfectants, and antifouling paints (correct)

Food processing and preservation

What is the characteristic of cyanide in water?

It is a strong acid

It exists as HCN in water (correct)

It has a weak affinity for metal ions

It is a natural nutrient for aquatic life

What is the source of ammonia in water?

Decay of organic N-containing material Signup and view all the answers

What is the primary source of hydrogen sulfide in water?

Anaerobic decay of organic matter containing sulfur Signup and view all the answers

What is the recommended upper limit of Arsenic in drinking water in the US?

10ppb Signup and view all the answers

What is the effect of organotin compounds on aquatic life?

They are toxic to aquatic organisms Signup and view all the answers

Where is Arsenic commonly found?

With phosphate rocks Signup and view all the answers

What is the result of the reaction between H3AsO4 and methylcobalamin?

CH3AsO(OH)2 Signup and view all the answers

What is the recommended upper limit of Cadmium in US drinking water?

10ppb Signup and view all the answers

What is a health effect of Arsenic poisoning?

Peripheral neuritis Signup and view all the answers

What is the effect of corrosion of galvanized pipes and tanks on the water?

It adds Cadmium to the water Signup and view all the answers

What is the health effect of Cadmium on the kidneys?

It causes kidney damage Signup and view all the answers

What happens to the solubility of Cadmium when the acidity of the solution increases?

It increases Signup and view all the answers

What is the name of the compound formed by the reaction between CH3AsO(OH)2 and methylcobalamin?

Dimethylarsinic acid Signup and view all the answers

What is the source of Cadmium in water?

Zinc mining wastes Signup and view all the answers

What is the effect of dissolved carbonate in weakly alkaline solutions on the solubility of Cadmium ions?

It decreases the solubility Signup and view all the answers