Correct order of spin only magnetic moment of the following complex ions is: (At. No. Fe: 26, Co: 27)
(1)
(2)
(3)
(4)

Question

Correct order of spin only magnetic moment of the following complex ions is: (At. No. Fe: 26, Co: 27)
(1) 
(2) 
(3) 
(4)

Canvas Classes · Accepted Answer

Strategy:
 Calculate the number of unpaired electrons () in each complex to rank their spin-only magnetic moments.

Step 1: Evaluate 
 () with weak field   high-spin.
 ().

Step 2: Evaluate 
 () with weak field   high-spin.
 ().

Step 3: Evaluate 
 () with moderate-strong field oxalate   low-spin.
 ().

Step 4: Rank
.

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