In the gaseous dimeric molecule , how many Chlorine atoms serve specifically as bridging ligands bet — Chemical Bonding Chemistry Question

💡 Solution & Explanation

The $Al_2Cl_6$ dimer consists of two $AlCl_3$ units. To achieve a stable octet, one terminal Chlorine from each monomer uses a lone pair to form a coordinate bond with the empty $3p$ orbital of the other Aluminum atom, resulting in exactly 2 bridging Chlorine atoms.