A) Ionisation energies of Sot-elements are greater than those of 3d and 4of elements.
B) Cu (I) is diamagnetic while Cu (II) is paramagnetic.
C) \[{{[Ti{{({{H}_{2}}O)}_{6}}]}^{3+}}\]is coloured while\[{{[Sc{{({{H}_{2}}O)}_{6}}]}^{+}}\]is colourless.
D) Transition elements cannot form complexes.
Correct Answer: D
Solution :
Transition elements form complexers due to their smaller size, higher nuclear charge and presence of low energy vacant orbitals to accept lone pair of electrons donated by ligands.
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