Question

Given below are two statements :

Statement I : None of the alkaline earth metal hydroxides dissolve in alkali.

Statement II : Solubility of alkaline earth metal hydroxides in water increases down the group.

In the light of the above statements, choose the most appropriate answer from the options given below.

• A. Statement I and Statement II both are correct
• B. Statement I and Statement II both are incorrect
• C. Statement I is incorrect but Statement II is correct
• D. Statement I is correct but Statement II is incorrect

Answer 1

The correct option is C Statement I is incorrect but Statement II is correct

• $Be(OH{)}_2$ is amphoteric in nature hence it dissolves in both acid and alkali.
• Solubility of alkaline earth metal hydroxide in water increases down the group due to rapid decreases in lattice energy as compared to hydration energy.

Hence, option (c) is correct