Question

10.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 1).On cooling, beautiful blue coloured crystals got separated (step II). Step I and Step II are
1 point
(a) physical and chemical changes respectively
(b) chemical and physical changes respectively
(c) both physical change
(d) both chemical change​

Answer 1

Answer:

anwer is the (b) option, trust me i am saying the truth

Explanation:

Answer 2

Answer:

answer is c option

Explanation:

Dissolution of copper sulphate powder in water in presence of sulphuric acid is a physical change. On cooling this hot solution, cystals of copper sulphate separate out, which is also a physical change.