During an experiment, a student obtains white precipitate of barium sulphate on mixing two aqueous solution with each other. (i) Name the two solutions he has mixed (ii) State the type of reaction and define it
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When sodium sulphate solution reacts with barium chloride solution results in double displacement reaction in which ions are exchanged.
Na
2
SO
4
+BaCl
2
⟶2NaCl+BaSO
4
In this reaction barium sulphate and sodium chloride are formed,the solution in water consists only sodium chloride because sodium chloride dissolves in water while barium sulphate it settles down and a white precipitate is formed (insoluble).
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