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Q.
Anhydrous $AlCl_3$ is prepared from
The p-Block Elements
Solution:
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 $