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[Fe(H2O)6]^(3+) is strongly paramagnetic...

`[Fe(H_2O)_6]^(3+)` is strongly paramagnetic whereas `[Fe(CN)_6]^(3-)` is weakly paramagnetic. Explain.

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`H_(2)O` is a weak ligand, so it does not cause pairing of electrons hence paramagnetic behaviour of `[Fe(H_(2)O)_(6)]^(3+)`
`CN^(-)` is a strong ligand, so it causes the pairing of electrons, hence diamagnetic behaviour of `[Fe(CN)_(6)]^(3-)`
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AAKASH INSTITUTE- ALCOHOLS, PHENOLS AND ETHERS-Assignment Section -D (Assertion - reason type question)
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