8. Assertion: On heating, colour 1 pointof hydrated copper sulphatechanges from blue to white.Reason: Copper sulphate is acrystalline salt.
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When Copper sulfate is heated strongly, it changes into white colored anhydrous copper sulphate and when water is added again to it then it is again changed to blue color copper sulphate. It is a reversible chemical change. When heated, the salt loses its water of crystallization and turns white.
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