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Question
Among the following ions, which one has the highest paramagnetism?
Options
[Cr(H2O)6]3+
[Fe(H2O)6]2+
[Cu(H2O)6]2+
[Zn(H2O)2]2+
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Solution
[Fe(H2O)6]2+
Explanation:
The ion with the highest paramagnetism is [Fe(H2O)6]2+. It has 4 unpaired electrons in its 3d orbitals, making it the most paramagnetic among the options. In comparison, the other ions have fewer unpaired electrons or are diamagnetic.
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