Amongst the following ions which one has the highest magnetic moment value?
(i). `[Cr(H_2O)_6]^(3+)`
(ii). `[Fe(H_2O)_6]^(2+)`
(iii). `[Zn(H_2O)]^(2+)`

Explanation

To determine which of the given coordination compounds has the highest magnetic moment value, we need to analyze the unpaired electrons in each complex. The magnetic moment (μ) can be calculated using the formula:

\[ \mu = \sqrt{n(n + 1)} \]

where \( n \) is the number of unpaired electrons.

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