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What does water of crystallisation mean?

Answer and explanation

Correct answer: A fixed amount of water present in a salt crystal

Water of crystallisation is the definite number of water molecules chemically associated with the formula unit of certain crystalline salts. It is not merely moisture on the outside. For example, CuSO₄·5H₂O contains five water molecules per formula unit. This water can influence crystal colour, shape, and stability, so option A gives the correct meaning.

Related tags

Water-Of-CrystallisationCrystalline-SaltsCopper-SulphateSaltsAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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