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  • The d- electron configurations of Cr2+, Mn2+, Fe2+ and Co2+ are d4, d5,d6 and d7 respectively. Which one

The d- electron configurations of Cr2+, Mn2+, Fe2+ and Co2+ are d4, d5,d6 and d7 respectively. Which one of the following will exhibit minimum paramagnetic behavior?

Option: 1

[Cr (H2O)6 ]2+


Option: 2

[Mn(H2O)6]2+


Option: 3

[Fe(H2O)6]2+


Option: 4

[Co(H2O)6]2+]

 

 


Answers (1)

best_answer

                                             No. of unpaired e^{-}

\left [ Cr\left ( H_{2}O \right ) _{6}\right ]^{2+}                    4

\left [ Mn\left ( H_{2}O \right ) _{6}\right ]^{2+}                  5

\left [ Fe\left ( H_{2}O \right ) _{6}\right ]^{2+}                    4

\left [ Co\left ( H_{2}O \right ) _{6}\right ]^{2+}                    3

 

\left [ Co\left ( H_{2}O \right ) _{6}\right ]^{2+} have a minimum number of unpaired electrons, and exhibit minimum paramagnetic behaviour.

Posted by

Devendra Khairwa

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