Question

Explain cuso4. 5h2o is blue while znso4 and cuso4 are colourless?

Answer 1

CuSO4.5H2O gives [Cu(H2O)4]+2 ion which isblue in colour. That is why CuSO4.5H2O is coloured but CuSO4 is colourless or can be said white due to lack of water molecule. It absorbs moisture and turn blue in colour........h