Q. 54.4( 306 Votes )
A blue coloured s
Copper Sulphate exists in two forms. One form is the hydrated copper sulphate whose chemical formula is CuSO4.5H2O and hydrated copper sulphate is blue colour in appearance.
When hydrated copper sulphate is heated, the water molecule gets evaporated to form anhydrated copper sulphate which is white in colour.
CuSO4.5H2O → CuSO4 + 5H2O
When we add water externally to anhydrate copper sulphate, it again turns blue in colour.
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