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JEE Main20204 Sep 2020Evening ShiftChemistryCoordination CompoundsActual

The one that can exhibit highest paramagnetic behaviour among the following is : gly = glycinato; bpy = 2 , 2 ' - bipyridine

Options

  1. APd ( gly ) 2
  2. BFe ( en ) ( bpy ) NH 3 2 2 *
  3. CCo ( OX ) 2 ( OH ) 2 - Δ 0 > P
  4. DTi NH 3 6 3 *

Correct answer

C. Co ( OX ) 2 ( OH ) 2 - Δ 0 > P

Step-by-step solution

Complex EC Unpaired electrons ( 1 )   Fe ( en ) ( bpy ) NH 3 2 2 * Fe 2 + = 3 d 6 = t 2 g 2 , 2 , 2   , e g 0 . 0 0  (2)  Pd ( gly ) 2 Pd 2 + = 4 d 8 0  (3)  Ti NH 3 6 3 + T i 3 3 = 3 d 1 1 ( 4 )   Co ( OX ) 2 ( OH ) 2 - Δ 0 > P Co 5 + ⇒ 3 d 4 ⇒ t 2 g 2 , 1 , 1   , e 9 0 , 0 2

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