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The correct order of the solubility of s...

The correct order of the solubility of sulphates of alkaline earth metals in water is

A

`Be gt Ca gt Mg gt Ba gt Sr `

B

`Mg gt Be gt Ba gt Ca gt Sr`

C

`Be gt Mg gt Cagt Sr gt Ba `

D

`Mg gt Ca gt Ba gt Be gt Sr `

Text Solution

Verified by Experts

The correct Answer is:
C

As the size of the cation increases, their hydration energies decrease more rapidly than their lattice energies. Consequently, the solubilities of sulphates decrease down the group. The correct order is : `Be gt Mg gt Ca gt Sr gt Ba `
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