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Home :Companion Notes :Compounds :Polyatomic ionsPrint | Comment

Quiz
1. If the selenate ion has formula SeO42-, the selenite ion might be:
SeO32-SeO4+2 SeO52-SeO43-SeO4-
2. Nitrite ion is used in bleaching, dyeing and printing fabrics. The formula of the nitrite ion is:
NO3-HNO4-NO2-NO42-N2O3-2
3. NaClO3 has been used in herbicides and in explosives. The name of this compound is:
sodium chloritesodium chloridesodium chloratesodium perchloratesodium chloride trioxide
4. Veterinarians administer an 0.2 percent potassium permanganate solution to cows and horses as an antidote for plant alkaloid poisoning. A bottle that contains potassium permanganate solution might be labelled:
K2MnO4KMnO4KMgO4KMnO3K2MnO3
5. The NO4- ion exists in small quantities in the upper atmosphere. Using the naming guidelines for polyatomic ions, the name of this ion would be:
nitratepernitratesupernitratenitritehyponitrite
6. Sodium peroxide can be used for oxygen generation in diving bells and submarines, since it reacts with carbon dioxide and produces oxygen gas. The peroxide ion has the formula:
O2+O3-O2-O2-O22-
7. Sodium aluminate is used in fabric printing processes. If the formula is NaAlO2, the charge on the aluminate ion must be:
-2+1+2-10
8. Deadly lead(II) acetate is sometimes called "sugar of lead" because it has a very sweet taste; it was once used to sweeten wine! Lead(II) acetate is written as:
Pb(C2O4)2Pb(C2H3O2)2PbC2H3O2PbC2O4PbCO3
9. Bromate ion was baked into bread until recently as a preservative; it has been found to cause cancer in laboratory animals. The formula of the bromate ion is
BrO4-2HBrO3-BrO4-BrO3-BrO32-
10. If TeO42- is the tellurate ion, the name of the TeO32- ion is expected to be:
hypotelluritepertelluratetelluritetelluridehemitellurate
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Copyright © 1997-2005 by Fred Senese
Comments & questions to fsenese@frostburg.edu
Last Revised 06/11/07.URL: http://antoine.frostburg.edu/chem/senese/101/compounds/polyatomic-quiz.shtml