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: *
Physical and chemical changes respectively.
Chemical and physical changes respectively.
Both physical changes.
Both chemical changes
Answers
Answered by
9
Answer:
both physical changes
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.
Answered by
0
Answer:
Both physical changes.
Explanation:
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