01. Nomenclature
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COORDINATION COMPOUNDS

274112 The spin only magnetic moment of $\mathrm{Fe}^{2+}$ ion (in BM) is approximately

1 4
2 7
3 5
4 6
Karnataka-CET-2011
COORDINATION COMPOUNDS

274114 (A) $\mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]$

1 (A), (B) and (C)
2 (B), (C) and (D)
3 $(\mathrm{A}),(\mathrm{C})$ and (D)
4 (A), (B) and (D)
5 (B) and (D)
Kerala-CEE-2005
COORDINATION COMPOUNDS

274115 The complex ion which has the highest magnetic moment among the following is

1 $\left[\mathrm{CoF}_{6}\right]^{3-}$
2 $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$
3 $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}$
4 $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$
5 $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}$
Kerala-CEE-2011
COORDINATION COMPOUNDS

274116 Molecules/ions and their magnetic properties are given below
| Molecule/Ion | Magnetic property |
| :--- | :--- |
| (i) $\mathrm{C}_6 \mathrm{H}_6$ | 1. Antiferromagnetic |
| (ii) $\mathrm{CrO}_2$ | 2. Ferrimagnetic |
| (iii) $\mathrm{MnO}$ | 3. Ferromagnetic |
| (iv) $\mathrm{Fe}_3 \mathrm{O}_4$ | 4. Paramagnetic |
| (v) $\mathrm{Fe}^{3+}$ | 5. Diamagnetic |
The correctly matched pairs in the above is

1 i-5 ii-3 iii-2 iv-1 v-4
2 i-3 ii-5 iii-1 iv-4 v-2
3 i-5 ii-3 iii-1 iv-2 v-4
4 i-5 ii-3 iii-1 iv-4 v-2
5 i-4 ii-5 iii-1 iv-2 v-3
Kerala-CEE-2012
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COORDINATION COMPOUNDS

274112 The spin only magnetic moment of $\mathrm{Fe}^{2+}$ ion (in BM) is approximately

1 4
2 7
3 5
4 6
Karnataka-CET-2011
COORDINATION COMPOUNDS

274114 (A) $\mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]$

1 (A), (B) and (C)
2 (B), (C) and (D)
3 $(\mathrm{A}),(\mathrm{C})$ and (D)
4 (A), (B) and (D)
5 (B) and (D)
Kerala-CEE-2005
COORDINATION COMPOUNDS

274115 The complex ion which has the highest magnetic moment among the following is

1 $\left[\mathrm{CoF}_{6}\right]^{3-}$
2 $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$
3 $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}$
4 $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$
5 $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}$
Kerala-CEE-2011
COORDINATION COMPOUNDS

274116 Molecules/ions and their magnetic properties are given below
| Molecule/Ion | Magnetic property |
| :--- | :--- |
| (i) $\mathrm{C}_6 \mathrm{H}_6$ | 1. Antiferromagnetic |
| (ii) $\mathrm{CrO}_2$ | 2. Ferrimagnetic |
| (iii) $\mathrm{MnO}$ | 3. Ferromagnetic |
| (iv) $\mathrm{Fe}_3 \mathrm{O}_4$ | 4. Paramagnetic |
| (v) $\mathrm{Fe}^{3+}$ | 5. Diamagnetic |
The correctly matched pairs in the above is

1 i-5 ii-3 iii-2 iv-1 v-4
2 i-3 ii-5 iii-1 iv-4 v-2
3 i-5 ii-3 iii-1 iv-2 v-4
4 i-5 ii-3 iii-1 iv-4 v-2
5 i-4 ii-5 iii-1 iv-2 v-3
Kerala-CEE-2012
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COORDINATION COMPOUNDS

274112 The spin only magnetic moment of $\mathrm{Fe}^{2+}$ ion (in BM) is approximately

1 4
2 7
3 5
4 6
Karnataka-CET-2011
COORDINATION COMPOUNDS

274114 (A) $\mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]$

1 (A), (B) and (C)
2 (B), (C) and (D)
3 $(\mathrm{A}),(\mathrm{C})$ and (D)
4 (A), (B) and (D)
5 (B) and (D)
Kerala-CEE-2005
COORDINATION COMPOUNDS

274115 The complex ion which has the highest magnetic moment among the following is

1 $\left[\mathrm{CoF}_{6}\right]^{3-}$
2 $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$
3 $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}$
4 $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$
5 $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}$
Kerala-CEE-2011
COORDINATION COMPOUNDS

274116 Molecules/ions and their magnetic properties are given below
| Molecule/Ion | Magnetic property |
| :--- | :--- |
| (i) $\mathrm{C}_6 \mathrm{H}_6$ | 1. Antiferromagnetic |
| (ii) $\mathrm{CrO}_2$ | 2. Ferrimagnetic |
| (iii) $\mathrm{MnO}$ | 3. Ferromagnetic |
| (iv) $\mathrm{Fe}_3 \mathrm{O}_4$ | 4. Paramagnetic |
| (v) $\mathrm{Fe}^{3+}$ | 5. Diamagnetic |
The correctly matched pairs in the above is

1 i-5 ii-3 iii-2 iv-1 v-4
2 i-3 ii-5 iii-1 iv-4 v-2
3 i-5 ii-3 iii-1 iv-2 v-4
4 i-5 ii-3 iii-1 iv-4 v-2
5 i-4 ii-5 iii-1 iv-2 v-3
Kerala-CEE-2012
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COORDINATION COMPOUNDS

274112 The spin only magnetic moment of $\mathrm{Fe}^{2+}$ ion (in BM) is approximately

1 4
2 7
3 5
4 6
Karnataka-CET-2011
COORDINATION COMPOUNDS

274114 (A) $\mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]$

1 (A), (B) and (C)
2 (B), (C) and (D)
3 $(\mathrm{A}),(\mathrm{C})$ and (D)
4 (A), (B) and (D)
5 (B) and (D)
Kerala-CEE-2005
COORDINATION COMPOUNDS

274115 The complex ion which has the highest magnetic moment among the following is

1 $\left[\mathrm{CoF}_{6}\right]^{3-}$
2 $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}$
3 $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}$
4 $\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$
5 $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}$
Kerala-CEE-2011
COORDINATION COMPOUNDS

274116 Molecules/ions and their magnetic properties are given below
| Molecule/Ion | Magnetic property |
| :--- | :--- |
| (i) $\mathrm{C}_6 \mathrm{H}_6$ | 1. Antiferromagnetic |
| (ii) $\mathrm{CrO}_2$ | 2. Ferrimagnetic |
| (iii) $\mathrm{MnO}$ | 3. Ferromagnetic |
| (iv) $\mathrm{Fe}_3 \mathrm{O}_4$ | 4. Paramagnetic |
| (v) $\mathrm{Fe}^{3+}$ | 5. Diamagnetic |
The correctly matched pairs in the above is

1 i-5 ii-3 iii-2 iv-1 v-4
2 i-3 ii-5 iii-1 iv-4 v-2
3 i-5 ii-3 iii-1 iv-2 v-4
4 i-5 ii-3 iii-1 iv-4 v-2
5 i-4 ii-5 iii-1 iv-2 v-3
Kerala-CEE-2012
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