Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured crystals got separated (step II). Step I and step II are:(a) physical and chemical changes respectively.(b) chemical and physical changes respectively.(c) both physical change.(d) both chemical change.

Two drops of dilute sulphuric acid were added to 1 g of copper sulphat

1.	Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured crystals got separated (step II). Step I and step II are:(a) physical and chemical changes respectively.(b) chemical and physical changes respectively.(c) both physical change.(d) both chemical change.
Answer» (c) both physical change.