Give the uses of $LiBH_4$ and $NaBH_4$.

Which of the following reactions give $H_2$ as one of the products? (Reactions are not balanced)
$I) NaBH_4 + I_2 \longrightarrow$
$II) B_2H_6 + N(CH_3)_3 \longrightarrow$
$III) Al + NaOH + H_2O \longrightarrow$
$IV) BF_3 + NaH \longrightarrow$

In the reaction $2X + B_2H_6 \rightarrow [BH_2(X)_2]^+ [BH_4]^-$,the amine$(s)$ $X$ is(are):

Which of the following acids does not produce $H_2$ gas upon reaction with alkali metals?

Which of the following methods is used to prepare dihydrogen with purity greater than $99.95 \%$?

Which of the following is an example of an interstitial hydride?