Question : The chemical formula of washing soda is ______.
Option 1: Na2CO3.10H2O
Option 2: Na2SO4
Option 3: NaOH
Option 4: NaHCO3
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Correct Answer: Na2CO3.10H2O
Solution : The correct answer is Na2CO3.10H2O.
The chemical formula for washing soda is Na2CO3.10H2O. It is a sodium carbonate inorganic hydrate. Soda ash got its name because it was taken from the ashes of plants that were growing in soils high in salt. It is a metal carbonate that is soluble in water and is a white, crystalline solid.
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Question : The chemical formula of borax is
Option 1: Na2B5 O7 .10H2O
Option 2: Na2B4O7.10H2O
Option 3: Na2B4O7.5H2O
Option 4: Na2B4O7.12H2O
Question : The chemical formula of Gypsum is _________.
Option 1: CaSO4.12H2O
Option 2: MgSO4.12H2O
Option 3: MgSO4.2H2O
Option 4: CaSO4.2H2O
Question : Identify the chemical formula of Ammonium Hydroxide.
Option 1: NH4OH
Option 2: NH4O2
Option 3: NH3O
Option 4: NH2OH
Question : The chemical formula of gypsum is ______.
Option 1: CaSO4.2H2O
Option 2: CaSO4.H2O
Option 3: CaSO4
Option 4: CaSO4.(1/2)H2O
Question : The chemical formula of quick lime is__________.
Option 1: CaO
Option 2: CO2
Option 3: CaCO3
Option 4: Ca(OH)2
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