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| 1. |
Aluminium cation is acidic. Why? |
| Answer» Solution :Aluminium CATION, `AL^(3+)` has empty orbitals available to accept electrons. Hence, `Al^(3+)` ion is a Lewis acid. `Al^(3+)` cation forms COMPLEX IONS like `[AlF_(6)]^(3-) ,[Al(OH)_4(H_2 O)_2 ]^(-)`, etc.` [Al^(3+)+6F^(-) to(AIF_(6))]^(3+)` | |