Q10Multiple choice
Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of hot water was PHYSICAL AND CHEMICAL CHANGES 35 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.
Show answer
(c) both physical change.