Question: The amphoteric hydroxide is :
$\mathrm{Ca}(\mathrm{OH})_{2}$
$\mathrm{Be}(\mathrm{OH})_{2}$
$\mathrm{Sr}(\mathrm{OH})_{2}$
$\mathrm{Mg}(\mathrm{OH})_{2}$
Correct Option: 2
Solution:
$\mathrm{Be}(\mathrm{OH})_{2}$ is amphoteric in nature while rest all alkaline earth metal hydroxide are basic in nature.