(a) What happens when copper sulphate crystals are heated strongly? Explain with help of an equation.

(b) What happens when a few drops of water are added to anhydrous copper sulphate? Explain with the help of an equation.

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Solution

(a)On strong heating, blue copper sulphate crystals turn white.

$C u S O_{4} .5 H_{2} O h e a t ⟶ C u S O_{4} + 5 H_{2} O$

(b) when a few drops of water are added to anhydrous copper sulphate it gets hydrated and turns blue.

$C u S O_{4} + 5 H_{2} O ⟶ C u S O_{4} . 5 H_{2} O$

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