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What is the chemical name of washing soda?

Answer and explanation

Correct answer: Sodium carbonate decahydrate

Washing soda is the hydrated salt sodium carbonate decahydrate, represented by Na₂CO₃·10H₂O. The term “decahydrate” means that each formula unit of sodium carbonate is associated with ten molecules of crystallisation water. It is used in laundry and for removing the hardness of water. Sodium hydrogen carbonate is baking soda, sodium chloride is common salt, and calcium sulphate hemihydrate is Plaster of Paris; hence option A is correct.

Related tags

Washing SodaSodium CarbonateSaltsAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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