Subject :Chemistry Class : Class 7
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.