Question

what will be the change in the colour of a copper sulphate solution when magnesium is added to it? wrote balanced eqution for the same?​

Answer 1

Aqueous copper sulfate solution is blue from the colour of the hydrated Cu++ cations and since the sulfate anion is colourless. The colour of the copper sulfate does not change during the reaction with magnesium metal.

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Answer 2

Answer:

Mg+CuSO 4

⟶MgSO 4 +Cu

(Blue)

By addingMagnesium to CuSO 4

, it turns to MgSO 4

.

Because Mg is above Cu in reactivity series. So Mg displaces Cu in CuSO 4

. As reaction processes, CuSO 4

content decreases.

∴ Color blue fades.