A blue colour salt becomes white on heating. Give reason for the above observations. What happen when we add water to the salt which is obtained after heating? Also write its formula.

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Solution

Dear Student,
`The blue colour salt become white due to loss of water of crystallization on heating. When we add water to the salt which is obtained after heating then it regain its blue colour. The salt is copper sulphate and its formula is CuSO₄.5H₂O. Regards`

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