MCQ
Strong reducing and oxidizing agents among the following, respectively, are
- A$Ce ^{4+}$ and $Eu ^{2+}$
- B$Ce ^{4+}$ and $Tb ^{4+}$
- C$Ce ^{3+}$ and $Ce ^{4+}$
- ✓$Eu ^{2+}$ and $Ce ^{4+}$
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$[Co(en)_3]\,[Cr(C_2O_4)_3]$
$[Cu(NH_3)_4]\, [CuCl_4]$
$[Ni(en)_3]\,[Co(NO_2)_6]$
$(I)$ Strong field ligand $(II)$ Weak field ligand
$(III)$ Mixed field ligand $(IV)$ Chelated ligand field
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