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Using valence bond theory, explain the f...

Using valence bond theory, explain the following in relation to the complexes given below
`[Mn(CN)_(6)]^(3-), [Co(NH_(3))_(6)]^(3+), [Cr(H_(2)O)_(6)]^(3+), [FeCl_(6)]^(4-)`
(a) type of hybridisation
(b) Inner or outer orbital complex
(c) Magnetic behaviour
(d) Spin only magnetic moment value.

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To solve the question using valence bond theory for the given coordination complexes, we will analyze each complex step-by-step based on the four criteria: type of hybridization, inner or outer orbital complex, magnetic behavior, and spin-only magnetic moment value. ### Step 1: Analyzing [Mn(CN)6]^(3-) **(a) Type of Hybridization:** - Manganese (Mn) in this complex is in the +3 oxidation state. The electronic configuration of Mn is [Ar] 4s² 3d⁵. In the +3 state, it loses two 4s electrons and one 3d electron, resulting in a configuration of 3d⁴. - In the presence of strong field ligands like CN⁻, the electrons will pair up, leaving two unpaired electrons. The hybridization will be d²sp³. ...
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