Among the following hydroxides, the one which has the lowest value of K_(sp) at ordinary temperature (about 25^(@) C ) is

Among the following hydroxides, the one which has the lowest value of

1.	Among the following hydroxides, the one which has the lowest value of K_(sp) at ordinary temperature (about 25^(@) C ) is
Answer» `Mg(OH)_(2)` `CA(OH)_(2)` `Ba(OH)_(2)` `Be(OH)_(2)` Solution :The solubility increases down the group due to increase in size of the ION and DECREASE in LATTICE energy. Lower the solubility, lower is the `K_(sp)`.