The correct statements among I to III are:
(I) Valence bond theory cannot explain the color exhibited by transition metal complexes.
(II) Valence bond theory can predict quantitatively the magnetic pr

Question

The correct statements among I to III are:
(I) Valence bond theory cannot explain the color exhibited by transition metal complexes.
(II) Valence bond theory can predict quantitatively the magnetic properties of transition metal complexes.
(III) Valence bond theory cannot distinguish ligands as weak and strong field ones.

Canvas Classes · Accepted Answer

Strategy:
 Review the core principles and limitations of Valence Bond Theory (VBT) applied to coordination compounds.

Step 1: Evaluate Statement (I)
"VBT cannot explain the color exhibited by transition metal complexes."
True. VBT focuses on hybridisation and orbital overlap. It does not provide a mechanism for d-d transitions and energy gaps which are required to explain color. (Crystal Field Theory is needed for this).

Step 2: Evaluate Statement (II)
"VBT can predict quantitatively the magne

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