Among the following complexes (K–P),
K 3 [Fe(CN) 6 ] (K), [Co(NH 3 ) 6 ]Cl 3 (L), Na 3 [Co(oxalate) 3 ] (M), [Ni(H 2 O) 6 ]Cl 2 (N), K 2 [Pt(CN) 4 ] (O) and
[Zn(H 2 O) 6 ](NO 3 ) 2 (P) the diamagnetic complexes are :
Text Solution
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K–[Fe(CN) 6 ] 3– : 3d 5 electron configuration after pairing of electrons for d 2 sp 3 hybridisation it contains one unapaired electrons.
L–[Co(NH 3 ) 6 ] 3+ : 3d 6 electron configuration, d 2 sp 3 , diamagnetic.
M–[Co(ox) 3 ] 3– : 3d 6 electron configuration, d 2 sp 3 , diamagnetic.
N–[Ni(H 2 O) 6 ] 2+ : 3d 8 electron configuration, sp 3 d 2 , with two unpaired electrons paramagnetic.
O–[Pt(CN) 4 ] 2– : 5d 8 electron configuration, dsp 2 , diamagnetic.
P–[Zn(H 2 O) 6 ] 2+ : 3d 10 electron configuration, sp 3 d 2 , diamagnetic.
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