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A student heated a few crystals of copper sulphate in a dry boiling tube.

(a) What will be the color of the copper sulphate after heating? 

(b) Will you notice water droplets in the boiling tube? 

(c) Where have these come from?

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(a) White (b) Yes (c) Copper sulphate crystals which seem to be dry contain water of crystallization.

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