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Question
Consider the following substances:
NaCl, Ca(OH)2, NaHCO3, NH3, Na2CO3, H2O, Cl2, CO2, CaSO4.2H2O, 2CaSO4.H2O, CaOCl2
- Which two substances combine to form bleaching powder?
- Which four substances are utilised in the production of washing soda?
- Which compound represents plaster of Paris?
- Which compound is a part of baking powder?
- Which compound is used as an antacid?
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Solution
- Two substances that combine to form bleaching powder are Ca(OH)2 and Cl2.
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Four substances which are utilised in the production of washing soda are NaCl, NH3, H2O and CO2.
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The compound that represents plaster of Paris is 2CaSO4.H2O.
- The component which is a part of baking powder is NaHCO3.
- The compound that is used as an antacid is NaHCO3.
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