Which of the following is an amphoteric hydroxide?

14 2019 The s-Block ElementsAlkaline Earth Metals – Hydroxides Easy
Which of the following is an amphoteric hydroxide?
A $Sr(OH)_2$
B $Ca(OH)_2$
C $Mg(OH)_2$
D $Be(OH)_2$

Detailed Solution

$Be(OH)_2$ is amphoteric, since it reacts with both acid and base: $Be(OH)_2+2HCl\rightarrow BeCl_2+2H_2O$ $Be(OH)_2+2NaOH\rightarrow Na_2[Be(OH)_4]$

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