Hydrated $AlCl_3$ is used as :
catalysed in cracking of petroleum
catalysed in Friedel-Craft's reaction
Mordant
all of the above
How can you explain higher stability of $BCl_3$ as compared to $TlCl_3$ ?
Give origin of group $13$ elements
$AlC{l_3}$ is
Which metal is protected by a layer of its own oxide
Which elements of group $13$ possess both $+1$ and $+3$ oxidation state?