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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:
SeO52-SeO43-SeO4+2 SeO4-SeO32-
2. Sodium sulfate occurs in nature as the minerals mirabilite and thenardite. The formula of the sulfate ion is:
SO42-S2O3-2HSO4-SO32-SO4-
3. Sodium bicarbonate is "baking soda", the active ingredient in many antacids. The formula of the bicarbonate ion is:
HCO32-CO32-(CO3)24-H2CO3-HCO3-
4. Nitrite ion is used in bleaching, dyeing and printing fabrics. The formula of the nitrite ion is:
HNO4-N2O3-2NO2-NO3-NO42-
5. Hypochlorite ion is the active ingredient in Chlorox bleach. The formula of the hypochlorite ion is:
ClO3-HClO-ClO2-2ClO2-ClO-
6. 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:
supernitratepernitratenitratenitritehyponitrite
7. An old bottle labelled "sodium biphosphate" contains:
NaH2PO4Na3PO4NaHPO3NaH2PO3Na2HPO4
8. 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:
KMnO3KMgO4KMnO4K2MnO4K2MnO3
9. Sodium aluminate is used in fabric printing processes. If the formula is NaAlO2, the charge on the aluminate ion must be:
-20+2-1+1
10. Which of the following is the bisulfate ion?
S2O82-S2O32-HSO4-(SO42-)2SO42-
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General Chemistry Online! Quiz

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