Chemistry - Complete Pblock- Question with Solution | TestHub

$\mathrm{A}\mathrm{l}(\mathrm{O}\mathrm{H}{)}_3$dissolves in NaOH solution to give$\mathrm{A}\mathrm{l}(\mathrm{O}\mathrm{H}{)}_4^{-}$ion which is supposed to have the octahedral complex species$\left[\mathrm{A}\mathrm{l}\right(\mathrm{O}\mathrm{H}{)}_4({\mathrm{H}}_2\mathrm{O}{)}_2{]}^{-}$aqueous solution.
$\mathrm{A}\mathrm{l}(\mathrm{O}\mathrm{H}{)}_3+\mathrm{N}\mathrm{a}\mathrm{O}\mathrm{H}(\mathrm{a}\mathrm{q})\to [\mathrm{A}\mathrm{l}\left(\mathrm{O}\mathrm{H}{)}_4\right({\mathrm{H}}_2\mathrm{O}{)}_2{]}^{-}\left(\mathrm{a}\mathrm{q}\right)+\mathrm{N}{\mathrm{a}}^{+}\left(\mathrm{a}\mathrm{q}\right)$