The correct order of energy of absorption for the following metal complexes is:
A: , B: , C:

Question

Canvas Classes · Accepted Answer

Strategy:
 Relate the energy of absorption to the ligand field strength using the spectrochemical series.
 . Higher field strength means higher absorption energy.

Step 1: Order the ligands
From the spectrochemical series, the order of field strength is:

This translates to: C < B < A.

Step 2: Relate to energy
The energy of absorption follows exactly the same order as field strength for the same metal ion ().
Energy of absorption: C < B < A.

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