Which of the following salt has a blue colour and why?
$C u S O_{4} .5 H_{2} O$ or $C u S O_{4} .$

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Solution

$C u S O_{4} .5 H_{2} O$ salt has a blue colour.

The blue colour of $C u S O_{4} .5 H_{2} O$ salt is due to the presence of water of crystallization. The water molecules which form part of the structure of a crystal are called water of crystallization. The water of crystallization gives the crystal of salts their shape and colour.

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Similar questions

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

C u S O_{4}

$C u S O_{4} .5 H_{2} O$ is blue in colour while $C u S O_{4}$ is colourless. Why?

C u {S O}_{4} \cdot 5 H_{2} O

C u {S O}_{4}

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