When an aqueous solution of barium chloride is mixed with an aqueous solution of sodium sulphate, which white precipitate is formed?
Answer and explanation
Correct answer: Barium sulphate
The reaction is: \(\mathrm{BaCl_2(aq) + Na_2SO_4(aq) \rightarrow BaSO_4(s) + 2NaCl(aq)}\). Barium sulphate is insoluble in water, so it separates as a white solid precipitate. In contrast, sodium chloride remains soluble, while barium chloride and sodium sulphate are the initial reactants.
Frequently asked questions
What is the correct answer to this question?
Barium sulphate
Why is this the correct answer?
The reaction is: \(\mathrm{BaCl_2(aq) + Na_2SO_4(aq) \rightarrow BaSO_4(s) + 2NaCl(aq)}\). Barium sulphate is insoluble in water, so it separates as a white solid precipitate. In contrast, sodium chloride remains soluble, while barium chloride and sodium sulphate are the initial reactants.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
