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Q. No.Which complex, among the following, has the highest value of crystal field splitting energy?
1. \([Co(CN)_6]^{3-}\)
2. \([Cu(NH_3)_4]^{2+}\)
3. \([Co(H_2O)_6]^{2+}\)
4. \([Ti(H_2O)_6]^{3+}\)
Subtopic: VBT, CFT & their Limitations |
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In the structure of Co2(CO)8, X is the number of Co-Co bonds and Y is the number
of Co-CO terminal bonds. The value of X + Y is:
of Co-CO terminal bonds. The value of X + Y is:
| 1. | 8 | 2. | 6 |
| 3. | 10 | 4. | 7 |
Subtopic: Organometallic Complexes & their Uses |
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| Statement I: | Hybridisation of [Ni(CN)4]2- is dsp2 with square geometry & diamagnetic character while hybridization of [Ni(CO)4] is sp3 with tetrahedral geometry and paramagnetic character. |
| Statement II: | [NiCl4]2- and [Ni(CO)4] have the same geometry and hybridization and both are paramagnetic and have the same d orbital configuration. |
| 1. | Both Statement I & Statement II are true. |
| 2. | Both Statement I & Statement II are false. |
| 3. | Statement I is true while Statement II is false. |
| 4. | Statement I is false while Statement II is true. |
Subtopic: VBT, CFT & their Limitations |
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X: No. of Bridge Bonds present in compound Mn2(CO)10.
Y: No. of Bridge Bonds present in compound W(CO)6.
The sum of (X+Y) is:
1. 1
2. 4
3. 0
4. 2
Y: No. of Bridge Bonds present in compound W(CO)6.
The sum of (X+Y) is:
1. 1
2. 4
3. 0
4. 2
Subtopic: Organometallic Complexes & their Uses |
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Which of the following complex is optically active?
1. Cis – [Pt(NH3)2Cl2]
2. Trans – [Pt(NH3)2Cl2]
3. Cis – [Pt(en)2Cl2]
4. Trans – [Pt(en)2Cl2]
1. Cis – [Pt(NH3)2Cl2]
2. Trans – [Pt(NH3)2Cl2]
3. Cis – [Pt(en)2Cl2]
4. Trans – [Pt(en)2Cl2]
Subtopic: Isomerism in Coordination Compounds |
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How many of the following complexes is (are) paramagnetic?
[Fe(CN)6]3-, [Fe(CN)6]4-, [NiCl4]2-, [Ni(CN)4]2-, [CuCl4]2-, [Cu(CN)4]3-, [Cu(H2O)4]2+
1. 4
2. 5
3. 6
4. 3
[Fe(CN)6]3-, [Fe(CN)6]4-, [NiCl4]2-, [Ni(CN)4]2-, [CuCl4]2-, [Cu(CN)4]3-, [Cu(H2O)4]2+
1. 4
2. 5
3. 6
4. 3
Subtopic: VBT, CFT & their Limitations |
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The cation that exhibits a bright red color when reacting with dimethyl glyoxime is:
1. Cu2+
2. Ni2+
3. Zn2+
4. Co2+
1. Cu2+
2. Ni2+
3. Zn2+
4. Co2+
Subtopic: Organometallic Complexes & their Uses |
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The number of unpaired electrons on cobalt in the complex ion \([CoCl_4]^{2-}\) is:
1. 2
2. 3
3. 4
4. 5
1. 2
2. 3
3. 4
4. 5
Subtopic: VBT, CFT & their Limitations |
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The magnetic moment of a metal ion is 3.87 B.M. The metal ion is:
1. \(V^{3+} \)
2. \(\mathrm{Cr}^{3+} \)
3. \(\mathrm{Mn}^{2+} \)
4. \(T i^{2+} \)
1. \(V^{3+} \)
2. \(\mathrm{Cr}^{3+} \)
3. \(\mathrm{Mn}^{2+} \)
4. \(T i^{2+} \)
Subtopic: VBT, CFT & their Limitations |
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Which of the following complexes is paramagnetic in nature?
1. [Fe(NH3)2(CN)4]2−
2. [Ni(CN)4]2−
3. [Ni(H2O)6]2+
4. [Co(NH3)4Cl2]+
1. [Fe(NH3)2(CN)4]2−
2. [Ni(CN)4]2−
3. [Ni(H2O)6]2+
4. [Co(NH3)4Cl2]+
Subtopic: VBT, CFT & their Limitations |
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