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Which white precipitate forms when barium chloride and sodium sulphate solutions are mixed?

Answer and explanation

Correct answer: Barium sulphate

Mixing BaCl₂(aq) and Na₂SO₄(aq) causes exchange of ions: BaCl₂ + Na₂SO₄ → BaSO₄↓ + 2NaCl. Barium sulphate is insoluble in water, so it separates as a white precipitate. Sodium chloride remains dissolved, while barium oxide and sodium oxide are not formed because no oxide ions are present. Hence option A is correct.

Related tags

ScienceClass10Double-DisplacementPrecipitationBarium-SulphateChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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