The question consist of two statements, Statement I and Statement II. You are to examine these two statements carefully and select the answer to these items using the codes given below. Statement I : Conversion of blue copper sulphate to black cupric oxide on heating is a physical change. Statement II : A change in which chemical composition does not change is called physical change.

The question consist of two statements, Statement I and Statement II.

1.	The question consist of two statements, Statement I and Statement II. You are to examine these two statements carefully and select the answer to these items using the codes given below. Statement I : Conversion of blue copper sulphate to black cupric oxide on heating is a physical change. Statement II : A change in which chemical composition does not change is called physical change.
Answer» Both the statements individually TRUE and Statement II is the correct explanation of Statement I. Both the statements are individually true but Statement II is not correct explanation of Statement I. Statement I is true but Statement II is false. Statement I is false but Statement II is true. Solution :On heating BLUE copper sulphate TURNS to a WHITE residue which is called anhydrous copper sulphate because the water of crystallization disappears on heating.