Q. No.Which of the following complex ions is not expected to absorb visible light ?
1. [Ni(CN)4]2-
2. [Cr(NH3)6]3+
3. [Fe(H2O)6]2+
4. [Ni(H2O)6]2+
The d-electron configurations of Cr2+, Mn2+, Fe2+ and Ni2+ are 3d4, 3d5, 3d6 and 3d8 respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour?
(1)[Mn(H2O)6]2+(2) [Fe(H2O)6]2+
(3) [Ni(H2O)6]2+(4) [Cr(H2O)6]2+
(At. no. Cr=24, Mn=25, Fe=26, Ni=28)
Copper sulphate dissolves in excess of KCN to give :
(1) CuCN
(2) [Cu(CN)4]3-
(3) [Cu(CN4]2-
(4) Cu(CN)2
[Co(NH3)4(NO2)2]Cl can show:
| 1. | Linkage isomerism, ionization isomerism and optical isomerism. |
| 2. | Linkage isomerism, ionization isomerism and geometrical isomerism. |
| 3. | Ionisation isomerism, geometrical isomerism and optical isomerism. |
| 4. | Ionisation isomerism, geometrical isomerism and optical isomerism. |
The complexes [CO(NH3)6][Cr(CN)6] and [Cr(NH3)6][Co(CN)6] are examples of:
| 1. | lonisation isomerism | 2. | Coordination isomerism |
| 3. | Geometrical isomerism | 4. | Linkage isomerism |
Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?
1. [Ni(NH3)6]2+
2. [Zn(NH3)6]2+
3. [Cr(NH3)6]3+
4. [Co(NH3)6]3+
A magnetic moment of 1.73 BM will be shown by one among the following
1. [Cu(NH3)4]2+
2. [Ni(CN)4]2-
3. TiCl4
4. [CoCl6]4-
The complex that is used as an anticancer agent is:
1. mer-[Co(NH3)3Cl3
2. cis-[PtCl2(NH3)2]
3. cis-K2[PtCl2 Br2]
4. Na2CoCl4
The sum of coordination number and oxidation number of the metal M in the complex M(en)2(C2O4)]Cl (where, en is ethylenediamine) is :
1. 9
2. 6
3. 7
4. 8
The hybridisation of Ni in the complex [Ni(CN)4]2- is:
(Atomic number of Ni = 28)
| 1. | dsp2 | 2. | sp3 |
| 3. | v | 4. | d2sp3 |
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