What are the water molecules attached to Epsom salt called?

Water of evaporation

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Water of condensation

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Water of hydration

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None of these

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Solution

The correct option is C Water of hydration
The seven molecules of water attached to $M g S O_{4} .7 H_{2} O$ are known as water of hydration. By definition, it is the amount of water attached to a compound to form a hydrate. Epsom salt is also known as Magnesium sulphate heptahydrate.

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