Question

State your observation when crystals of Copper sulphate are kept exposed to the atmosphere ( they are NOT HEATED only exposed to air )

Answer 1

Answer:

Explanation: On strong heating, blue copper sulphate crystals turn white due to formation of anhydrous copper sulphate.

Answer 2

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Crystals of copper sulphate on exposure to air looses it's water of crystallization and turns white in color from $\color{blue}\bf {blue.}$