Chemistry - Complete Pblock- Question with Solution | TestHub

$\mathrm{Al}(\mathrm{OH}{)}_3$ dissolves in $\mathrm{NaOH}$ solution to give $\mathrm{Al}(\mathrm{OH}{)}_4^{-}$ion which is supposed to have the octahedral complex species ${\left[\mathrm{Al}(\mathrm{OH}{)}_4{\left({\mathrm{H}}_2\mathrm{O}\right)}_2\right]}^{-}$in aqueous solution. $\begin{array}{r}\mathrm{Al}(\mathrm{OH}{)}_3+\mathrm{NaOH}(\mathrm{aq})⟶[\mathrm{Al}(\mathrm{OH}{)}_4\\ {\left({\mathrm{H}}_2\mathrm{O}\right)}_2-(\mathrm{aq})+\mathrm{Na}+(\mathrm{aq})\end{array}$