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Home :Companion Notes :Compounds :Polyatomic ionsPrint | Comment

Quiz
1. Dichromate ions are used in the tanning of leather. Dichromate ion is:
HCrO4-Cr2O32-CrO42-HCrO3-Cr2O72-
2. Nitrates are used in making rocket propellants, fertilizers, dynamite, and fireworks. The formula of the nitrate ion is:
NO2-NO4-N2O3-2NO3-NO32-
3. Nitrite ion is used in bleaching, dyeing and printing fabrics. The formula of the nitrite ion is:
HNO4-NO2-NO3-N2O3-2NO42-
4. 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
BrO32-HBrO3-BrO3-BrO4-2BrO4-
5. Which of the following compounds contains a polyatomic ion?
C6H12O6KBrNa2SO4LiClCO2
6. Sulfite ion is often used to "fix" photographic film during development. The formula of the sulfite ion is:
HSO4-SO3-SO42-S2O3-2SO32-
7. The SCN- ion forms a bright red complex with iron(II) ions. The SCN- ion is called the:
thiocyanide ionsulfurocyanide ionthiocyanite ioncyanide ionthiocyanate ioncyanate ion
8. Hard water contains high concentrations of calcium ions. The water is "softened" by treatment with carbonate ions, which precipitates the calcium as insoluble calcium carbonate. The formula of carbonate ion is:
CO2-CO22-CO3-HCO3-CO32-
9. If TeO42- is the tellurate ion, the name of the TeO32- ion is expected to be:
telluridehypotelluritetelluritehemitelluratepertellurate
10. 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:
PbC2H3O2Pb(C2H3O2)2PbCO3Pb(C2O4)2PbC2O4


General Chemistry Online! Quiz

Copyright © 1997-2005 by Fred Senese
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Last Revised 12/15/21.URL: http://antoine.frostburg.edu/chem/senese/101/compounds/polyatomic-quiz.shtml