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Question

Chemistry Question on Coordination complexes

The paramagnetic species among the following is/are (Given: Atomic numbers of Cr = 24; Fe = 26; Ni = 28):

A

[Fe(CN)6_6]3^{3-}

B

[Ni(OH2_2)6_6]2+^{2+}

C

[Ni(CN)4_4]2^{2-}

D

[Cr(CN)6_6]3^{3-}

Answer

[Fe(CN)6_6]3^{3-}

Explanation

Solution

The correct options are (A):[Fe(CN)6_6]3^{3-},(B): [Ni(OH2_2)6_6]2+^{2+} ,(D): [Cr(CN)6_6]3^{3-}