Question

a student keeps copper sulphate solution in a strong iron container and some aluminium sulphate solution in another iron container. After few days, he observed two solution. write his observation(s) and the corresponding reaction(s) involved.

Answer 1

Copper sulphate is a blue coloured solution. On addition of Zinc granules/strip , displacement reaction will take place and hence the formation of zinc sulphate will occur. The colour will disappear and heat will be released(exothermic reaction). CuSO4 solution has a blue colour while ZnSO4 solution is colourless.