Question

aluminium powder was added to a solution of copper sulphate the colour of the solution changed from

Answer 1

the colour of the solution will change from blue to colourless

Answer 2

Change of the colour is one of the most important results of a chemical reaction.

Similarly when we add the aluminium powder in the blue copper sulfate solution, the whole blue solution turns transparent or colourless.

The chemical equation of the above mentioned chemical reaction is:

3CuSO4+2Al = Al2(SO4)3 + Cu

The Al2(SO4)3 or the aluminium sulfate solution is transparent or colourless.