1.

Which statements is incorrect about complexes formed by the lanthanoid

Answer»

Hard donor ligands are favoured
High coordiantion number (more than six) are often observed
The 4f atomic orbitals do not play a significant part in metal-ligand bonding
Aque ions are typically 6-coordinate

Solution :The COORDINATION number for `[LN(H_(2)O)_(n)]^(+3)` in aqueous solution is THOUGHT to be 9 for the early lanthanoids and for the LATER, smaller members of the series.


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