Question

what will be the change in colour of copper sulphate solution when magnesium is added to it?​

Answer 1

Answer:

Explanation:

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.

Answer 2

Answer:

When magnesium is placed in copper sulfate solution a redox reaction occurs, causing copper metal to form on the magnesium and the deep blue colour of the solution pales. ... Potassium and gold are at the opposite of the reactivity series of metals (also called the activity series).