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Question
Amongst the following ions, which one has the highest magnetic moment value?
Options
[Cr(H2O)6]3+
[Fe(H2O)6]2+
[Zn(H2O)6]2+
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Solution
[Fe(H2O)6]2+
Explanation:
[Fe(H2O)6]2+ has the highest magnetic moment because Cr3+ has 3 unpaired electrons, whereas Fe2+ has four unpaired electrons and Zn2+ has 0 unpaired electrons.
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