Solubility of an ionic compound in water...

Solubility of an ionic compound in water is mainly dependent on:
a.Lattice enthalpy , b. Hydration enthalphy
Both these factors oppose each other and the resultant of these determines the solubility of an ionic compound in water. If lattce enthalpy has greater value, the compound is less soluble.
In case hydration enthalpy has greater value, the compound is highly soluble in water.
Which of the following is less soluble in water?

`Mg(OH)_(2)`

`Ca(OH)_(2)`

`Sr(OH)_(2)`

`Ba(OH)_(2)`

Verified by Experts

The correct Answer is:

Solubility of alkaline earth metal hydroxides increases down the group `(darr)`.

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Solubility of an ionic compound in water is mainly dependent on: a.Lattice enthalpy , b. Hydration enthalphy Both these factors oppose each other and the resultant of these determines the solubility of an ionic compound in water. If lattce enthalpy has greater value, the compound is less soluble. In case hydration enthalpy has greater value, the compound is highly soluble in water. Which of the following is more soluble in water?

`MgSO_(4)`

`CaSO_(4)`

`SrSO_(4)`

`BaSO_(4)`

Hydration enthalpy is greater than lattice enthalpy

Hydration enthalpy is less than lattice enthalpy

hydration enthalpy and lattice enthalpy are same

None of the above

Their high hydration enthalpy

Their high lattice enthalpy

Their increases covalent character

Their high ionisation enthalpy.