Question

When crystals of copper sulphate are strongly heated the residue obtained is ( in which colour)

Answer 1

white color is the residue obtained in this experiment

Answer 2

The residue obtained will be white in colour . The crystals of copper sulphate which is blue in colour , when is strongly heated , the residue obtained will be white in colour.

This is because when the sulphate of copper sulphate are heated , the water of crystallization is lost hence it loses it water while heating also the colour.
This blue can be reobtained adding water to the residue.

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