Match List I with List II:

(A) (B) (C) (D)

with (I) (II) (III) (IV)

| List-I (Complex) | List-II ( config) |
|------------------|-------------------------------|
| (A) () | (II) |
| (B)

Question

Match List I with List II:

(A)  (B)  (C)  (D)

with (I)  (II)  (III)  (IV)

| List-I (Complex) | List-II ( config) |
|------------------|-------------------------------|
| (A)  () | (II)  |
| (B)  ( HS) | (III)  |
| (C)  () | (IV)  |
| (D)  () | (I)  |

Canvas Classes · Accepted Answer

Strategy:
 All complexes are high-spin octahedral complexes due to the weak field ligand . Find the oxidation states and distribute the d-electrons accordingly.

Step 1: Determine configuration for each
- (A) :  is . The 3 electrons go into the lower-energy  orbitals: . (Matches II).
- (B) :  is . High spin distributes them singly across all 5 orbitals: . (Matches III).
- (C) :  is . The  orbitals get filled first, then , then pair up in : . (Matches IV).
- (D) :  is . The 2 electrons go into :

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