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Home :Companion Notes :Compounds :Polyatomic ionsPrint | Comment

Quiz
1. Iodate ion is used as a disinfectant. The formula of the iodate ion is
HIO3-IO32-IO4-2IO4-IO3-
2. Perchlorate compounds are used in explosives and jet fuels. The formula of the perchlorate ion is
ClO4-2ClO32-ClO3-ClO4-HClO3-
3. Sodium sulfate occurs in nature as the minerals mirabilite and thenardite. The formula of the sulfate ion is:
S2O3-2HSO4-SO42-SO4-SO32-
4. NaClO3 has been used in herbicides and in explosives. The name of this compound is:
sodium perchloratesodium chloritesodium chloratesodium chloridesodium chloride trioxide
5. Chlorite compounds are extremely explosive when they come into contact with combustible material. The formula of the chlorite ion is:
ClO2-ClO2-2ClO3-ClO2-HClO3-
6. Phosphate ion is a basic building block of minerals, bones, teeth, and DNA. The formula of the phosphate ion is:
HPO4-2PO3-PO42-PhO2-2PO43-
7. Sodium bicarbonate is "baking soda", the active ingredient in many antacids. The formula of the bicarbonate ion is:
HCO3- HCO32-H2CO3-(CO3)24-CO32-
8. Hydroxide ion solutions are sprayed on pretzels to give them their characteristic texture; the ion is removed by reaction with carbon dioxide during baking. The hydroxide ion is:
HO2-HO3-OH-HO2-HO2+
9. Which of the following compounds contains a polyatomic ion?
Na2SO4LiClC6H12O6CO2KBr
10. 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-HBrO3-BrO32-BrO3-BrO4-2


General Chemistry Online! Quiz

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Last Revised 12/15/21.URL: http://antoine.frostburg.edu/chem/senese/101/compounds/polyatomic-quiz.shtml