Question

5 blue coloured salt of copper sulphate becomes white on heating. Give reason

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Answer 1

Answer:

Explanation:

5 blue coloured salt of copper sulphate becomes white on heating because ,the water of crystallisation is losing ,it is stick to the walls of test tube and becomes anyhydrous copper sulphate.

And when the water falls down,it regains it’s colour.

❗️Copper Sulphate = CuSO4

〽️The water of crystallisation gives the crystals of their salts their shape and colour.

❕It’s formulae : CuSO4.5H2O

Anhydrous Copper sulphate is white in colour.

If water of crystallisation is absent/lost on heating then the blue one(CuSO4) becomes white .