Why blue colour of copper sulphate crystals disappers on heating?
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ayesha123
However, when copper sulphate is heated for some time, the blue colour disappears and it becomes white-gray in colour. This is because the water molecules are lost on heating and copper sulphate pentahydrate is converted to anhydrous copper sulphate.
prnjalgrg
Their blue color is due to water of crystallisation attached to them but when we heat them water gets converted into steam rising up leaving crstals colorless
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