Question

What reaction would take place between copper sulphate and Magnesium? On what basis can we predict the displacement reaction of metals with salt solution of other metals?

Answer 1

Answer:

magnesium becomes coated with copper. the blue colour of the solution fades as the blue copper(II) sulfate solution is replaced by a colourless magnesium sulfate solution.

Displacement reactions are easily seen when a salt of the less reactive metal is in the solution. During the reaction: the more reactive metal gradually disappears as it forms a solution. the less reactive metal coats the surface of the more reactive metal.