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Which is the correct matching for washing soda and baking soda?

Answer and explanation

Correct answer: Washing soda is sodium carbonate decahydrate, baking soda is sodium hydrogen carbonate

Washing soda is sodium carbonate decahydrate, Na₂CO₃·10H₂O, whereas baking soda is sodium hydrogen carbonate, NaHCO₃. The hydrate contains ten molecules of crystallisation water, while the hydrogen carbonate is a different salt with different uses. Therefore, option B is correct. Option A reverses their identities, and options C and D name unrelated salts: sodium chloride and calcium sulphate.

Related tags

Washing-SodaBaking-SodaSodium-CarbonateSodium-Hydrogen-CarbonateAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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