The correct order of spin-only magnetic moment of the following complex ions is: (Given At. No. $Fe: 26, Co: 27$)
- A$[FeF_6]^{3-} > [CoF_6]^{3-} > [Co(C_2O_4)_3]^{3-}$
- B$[Co(C_2O_4)_3]^{3-} > [CoF_6]^{3-} > [FeF_6]^{3-}$
- C$[FeF_6]^{3-} > [Co(C_2O_4)_3]^{3-} > [CoF_6]^{3-}$
- D$[CoF_6]^{3-} > [FeF_6]^{3-} > [Co(C_2O_4)_3]^{3-}$
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Match the List-$I$ with List-$II$:
List-$I$ (Complex ion) List-$II$ (Calculated spin only magnetic moment $(BM)$) $A$. $[Cr(H_2O)_6]^{2+}$ $I$. $3.87$ $B$. $[Co(H_2O)_6]^{2+}$ $II$. $5.92$ $C$. $[Cu(H_2O)_6]^{2+}$ $III$. $4.90$ $D$. $[Mn(H_2O)_6]^{2+}$ $IV$. $1.73$
Choose the correct answer from the options given below:
| List-$I$ (Complex ion) | List-$II$ (Calculated spin only magnetic moment $(BM)$) |
| $A$. $[Cr(H_2O)_6]^{2+}$ | $I$. $3.87$ |
| $B$. $[Co(H_2O)_6]^{2+}$ | $II$. $5.92$ |
| $C$. $[Cu(H_2O)_6]^{2+}$ | $III$. $4.90$ |
| $D$. $[Mn(H_2O)_6]^{2+}$ | $IV$. $1.73$ |
Choose the correct answer from the options given below:
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