Question

give an example of double displacement with definition​

Answer 1

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Double displacement reactions take place mostly in aqueous solutions wherein the ions precipitate and exchange of ions takes place. For example, when a solution of barium chloride is mixed with sodium sulphate, a white precipitate of barium sulphate is formed rapidly. These reactions are ionic in nature.

Answer 2

Answer:

Zn + CuSO4——>ZnSO4 + Cu

because zinc is more reactive than copper