The solubility of most salts depends on the lattice energy of the solid and the hydration energy of the ions. On descending the group, the hydration energy decreases more rapidly than the lattice energy, hence the compound become less soluble as the metals gets larger. however, with the fluorides and hydroxides and the lattice energy decreases more rapidly than the hydration energy and so their solubility increases on descending the group. Q. The most soluble hydroxide will beA. `Mg(OH)_(2)`B. `Ca(OH)_(2)`C. `Sr(OH)_(2)`D. `Ba(OH)_(2)`

The solubility of most salts depends on the lattice energy of the soli

1.	The solubility of most salts depends on the lattice energy of the solid and the hydration energy of the ions. On descending the group, the hydration energy decreases more rapidly than the lattice energy, hence the compound become less soluble as the metals gets larger. however, with the fluorides and hydroxides and the lattice energy decreases more rapidly than the hydration energy and so their solubility increases on descending the group. Q. The most soluble hydroxide will beA. `Mg(OH)_(2)`B. `Ca(OH)_(2)`C. `Sr(OH)_(2)`D. `Ba(OH)_(2)`
Answer» Correct Answer - D

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