When a student added a few drops of barium chloride solution to sodium sulphate solution, he obtained a white precipitate instantly. Which of the following type of chemical reaction has been carried out by the student ?
(1) combination
(2) double displacement
(3) displacement
(4) decomposition
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Answer:
It is a double displacement reaction.
Explanation:
When Sodium Sulphate and Barium Chloride react with each other, ions are exchanged and gives Sodium Chloride and Barium Sulphate.
Here, Barium Sulphate is insoluble in water and forms a percipitate which is white in colour.
Hope this helps!!
Cheers:)
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