Question

Anhydrous $AlCl_3$ is prepared from

• A. conc. HCl and aluminium metal
• B. aluminium and $Cl_2$
• C. dry HCl gas + heated aluminium metal
• D. none of above

Answer 1

Answer: (C)

When dry hydrochloride gas is passed over heated aluminium metal, then anhydrous aluminium chloride is obtained.
$\underset{\text{(Dry)}}{HCl(g)} + \underset{\text{(Heated)}}{Al}\rightarrow$ Anhydrous $\, AlCl_3$