Stability order of complexes of divalent metal ions with the same ligand

1. A.
   $\text{Fe}^{2+}>\text{Mn}^{2+}>\text{Co}^{2+}$
2. B.
   $\text{Co}^{2+}>\text{Fe}^{2+}>\text{Mn}^{2+}$
3. C.
   $\text{Co}^{2+}>\text{Mn}^{2+}>\text{Fe}^{2+}$
4. D.
   $\text{Fe}^{2+}>\text{Co}^{2+}>\text{Mn}^{2+}$

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1. A.
   ${Cu}^{2 +} > {Mn}^{2 +} > {Cd}^{2 +}$
2. B.
   ${Cd}^{2 +} > {Mn}^{2 +} > {Cu}^{2 +}$
3. C.
   ${Mn}^{2 +} > {Cd}^{2 +} > {Cu}^{2 +}$
4. D.
   ${Cu}^{2 +} > {Cd}^{2 +} > {Mn}^{2 +}$

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1. A.
   ${Cu}^{2 +}$
2. B.
   ${Co}^{2 +}$
3. C.
   ${Mn}^{2 +}$
4. D.
   ${Fe}^{2 +}$

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1. A.
   ${Co}^{2 +}$
2. B.
   ${Fe}^{2 +}$
3. C.
   ${Cd}^{2 +}$
4. D.
   ${Cu}^{2 +}$

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