Q. few crystals of copper sulphate are heated with in boiling test tube.
1. What is the colour before and after heating?
2. What is reason for the colour change?
3. Can it's original colour be restored? How?
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Explanation:
During this process of heating, it has been observed that before heating crystals of copper sulphate are blue in colour. But after heating, the colour changes from blue to white.
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