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
(A) I and II only (B) I, II and III
(C) I and III only (D) II and III only

Answer 1

Explanation:

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

(A) I and II only (B) I, II and III

(C) I and III only ✓✓✓

D) II and III only

Answer 2

I and III statements are correct.

• Valence bond theory can not distinguish ligands as weak and strong fields.
• Valence bond theory cannot explain the colour exhibited by transition metal complexes as it is one of the limitations of valance bond theory
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