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: Na 2 CO 3 .10H 2 O
Solution : The correct answer is Na 2 CO 3 .10H 2 O .
The chemical formula for washing soda is Na 2 CO 3 .10H 2 O. 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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