Which of the following properties does not support the anomalous behavior of $Boron$?

In the following unbalanced reaction,the product formed is $Al_2O_3 + NaOH_{(aq)} + H_2O \longrightarrow$

Draw the structure of $Al_2Cl_6$ and give the uses of $AlCl_3$.

The stability of $+1$ oxidation state among $Al$,$Ga$,$In$ and $Tl$ increases in the sequence:

In the following reactions:
$3B_2H_6 + 6NH_3 \text{ (excess)} \xrightarrow{\Delta} 2B_3N_3H_6 + 12H_2$
$6NaH + 2BF_3 \xrightarrow{450 \ K} B_2H_6 + 6NaF$
$B_2H_6 + 6H_2O \longrightarrow 2H_3BO_3 + 6H_2$
$X, Y$ and $Z$ are respectively:

In which of the following,a salt of the type $KMO_2$ is obtained?