Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour?
(Atomic Numbers: Cr=24;Mn=25;Fe=26;Co=27)
[Fe(CN)6]3−
[Co(CN)6]3−
[Cr(CN)6]3−
[Mn(CN)6]3−
A
[Mn(CN)6]3−
B
[Cr(CN)6]3−
C
[Co(CN)6]3−
D
[Fe(CN)6]3−
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Solution
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CN is a strong field ligand, all complexes will be inner orbital i.e d2sp3
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