Which of the following processes will not yield anhydrous $AlCl_3$?

The number of $2$-centre-$2$-electron and $3$-centre-$2$-electron bonds in $B_2H_6$,respectively,are

Which of the following statements is $NOT$ correct for potash alum?

Substance $X$ reacts with an aqueous solution of $NaOH$ to form $Y$ and releases $H_2$ gas. When an aqueous solution of $Y$ is heated at $323 \; K - 333 \; K$ and $CO_2$ gas is passed through it,it yields $Al_2O_3 \cdot xH_2O$ (often represented as $Al(OH)_3$) and $Z$. Heating $Z$ at $1200^{\circ}C$ produces $Al_2O_3$. Identify $X, Y,$ and $Z$.

Diborane reacts with $HCl$ in the presence of $AlCl_3$ and liberates:

What is obtained when an aqueous solution of aluminum chloride is heated to dryness?