Which of the following is given as an example of a salt with water of crystallisation?

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Multiple Choice

Which of the following is given as an example of a salt with water of crystallisation?

Explanation:
Water of crystallisation is when a salt incorporates water molecules into its crystal structure in a fixed ratio. These water molecules are part of the solid lattice and give the hydrated salt distinct properties (for example, a blue color for copper sulfate hydrate). When you heat the hydrated salt, the water is driven off, leaving the anhydrous salt behind. The classic example is copper(II) sulfate pentahydrate, which contains five water molecules for each CuSO4 unit. This hydrated form is blue, and upon heating it loses its water and becomes white anhydrous copper sulfate. Among the options, the one that shows a salt with water of crystallisation is copper(II) sulfate pentahydrate. The others are typically encountered as anhydrous salts in ordinary contexts.

Water of crystallisation is when a salt incorporates water molecules into its crystal structure in a fixed ratio. These water molecules are part of the solid lattice and give the hydrated salt distinct properties (for example, a blue color for copper sulfate hydrate). When you heat the hydrated salt, the water is driven off, leaving the anhydrous salt behind.

The classic example is copper(II) sulfate pentahydrate, which contains five water molecules for each CuSO4 unit. This hydrated form is blue, and upon heating it loses its water and becomes white anhydrous copper sulfate.

Among the options, the one that shows a salt with water of crystallisation is copper(II) sulfate pentahydrate. The others are typically encountered as anhydrous salts in ordinary contexts.

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