Select the correct statement(s).

${\mathrm{AlCl}}_3$ is the chemical formula for aluminium chloride, also referred to as aluminium trichloride. With the chemical formula $\left[\mathrm{Al}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]{\mathrm{Cl}}_3$, it creates hexahydrate, which is composed of six hydrated water molecules.
$\mathrm{HCl}$ gas is what causes the white vapours to appear. Anhydrous aluminium chloride hydrolyzes in part with atmospheric moisture to produce HCl gas.
Aluminium reacting with a concentrated solution of sodium hydroxide releases hydrogen gas.

Hence, the correct option is D.