The hybridization and magnetic behaviour of cobalt ion in complex, respectively is:

Question

The hybridization and magnetic behaviour of cobalt ion in  complex, respectively is:

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Strategy:
 Use Valence Bond Theory (VBT) to determine the hybridization and magnetic response of the  ammine complex.

Step 1: Establish configuration
Cobalt in  is in the +3 oxidation state.
 has a  configuration.

Step 2: Determine ligand effect
Ammonia () acts as a strong field ligand with , causing the inner  electrons to completely pair up.
This yields a  arrangement with 0 unpaired electrons, making it diamagnetic.

Step 3: Determine hybridization
Because two  orbitals are now empty, the c

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