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Washing soda is mainly used for what purpose?

Answer and explanation

Correct answer: Cleaning

Washing soda is sodium carbonate decahydrate, Na₂CO₃·10H₂O, and is a basic salt. Its alkaline nature helps remove grease and dirt, so it is widely used as a cleaning agent. It also softens hard water by removing calcium and magnesium ions. Making food sour, increasing stomach acid, and damaging teeth are not its proper uses; therefore option A is correct.

Related tags

ScienceClass10Acids-Bases-SaltsWashing-SodaUsesAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

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