Among the following ions, which one has the highest paramagnetism ?
Among the following ions, which one has the highest paramagnetism ?
A. `[Cr(H_(2)O)_(6)]^(3+)`
B. `[Fe(H_(2)O)_(6)]^(2+)`
C. `[Cu(H_(2)O)_(6)]^(2+)`
D. `[Zn(H_(2)O)_(6)]^(2+)`
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