[[Co(H_2O)_6]^{2+}] The d-electron configuration of Cr^{2+}, Mn^{2+} Fe^{2+} and Co^{2+} are d^4, d^5,d^6 and d^7 dre

For Competitive Exams

The d-electron configuration of $Cr^{2+}, Mn^{2+} Fe^{2+} and Co^{2+} are d^4, d^5,d^6 and d^7$ drespectively. Which one of the following will exhibit minimum paramagnetic behaviour? (At. no. Cr = 24, Mn = 25, Fe = 26, CO = 27)

$[Fe(H_2O)_6]^{2+}$

$[Co(H_2O)_6]^{2+}$

$[Cr(H_2O_6)]^{2+}$

$[Mn(H_2O)]_6]^{2+}+$

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