The complexes formed by `Cu^(2+)` ion are more stable than those formed by`Cd^(2+)` ion because _________.

Options

A. the value of the stability constant for `Cd^(2+)` complexes is greater than that of
B. the charge density on `Cu^(2+)` ion is greater than that on `Cd^(2+)` ion.
C. the ionic radius of `Cu^(2+)` ion is more than that of `Cd^(2+)` ion.
D. `Cu^(2+)` ion forms chelate compounds.

Answer

B