Question

which of these following is a physical change : a . burning of paper b. rusting c.dissolution of copper sulphate in water d. digestion​

Answer 1

Answer:Dissolution of Copper Sulphate in water

Explanation:

When copper sulphate is dissolved in water, it is just a change of physical state of copper sulphate and particles dissolve in solution. So, its just a physical change.

Answer 2

Answer:

the dissolve of copper sulphate in water is a physical change

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