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Two drops of dilute sulphuric acid ...

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 1 and step II are :

A

physical and chemical changes respectively .

B

chemical and physical changes respectively .

C

both physical change.

D

both chemical change .

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