Chemistry - Complete s-block Question with Solution | TestHub

Both Li and Na form complex hydrides,$\mathrm{L}\mathrm{i}\mathrm{A}\mathrm{l}{\mathrm{H}}_4$and$\mathrm{N}\mathrm{a}\mathrm{B}{\mathrm{H}}_4$.
$2\mathrm{M}\mathrm{H}+{\mathrm{B}}_2{\mathrm{H}}_6\to 2{\mathrm{M}}^{+}[\mathrm{B}{\mathrm{H}}_4{]}^{-}$
(M = Li or Na)