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- 1. Multiple Choice
1. The donor sites of (EDTA)4- are ?
O atoms only
N atoms only
Two N and four O atoms
Three N and three O atoms
- 2. Multiple Choice
The compound having lowest oxdation state of iron is
K4[Fe(CN)6]
K2FeO4
[Fe(CO)5]
K3[Fe(CN)6]
- 3. Multiple Choice
Among the following ions which one has the highest paramagnetism ?
[Cr(H2O)6]+3
[Fe(H2O)6]+2
[Cu(H2O)6]+2
[Zn(H2O)6]+2
- 4. Multiple Choice
In K4[Fe(CN)6] the number of unpaired electrons in iron are
0
2
3
5
- 5. Multiple Choice
The value of 'spin only' magnetic moment for one of the following configurations is 2.84 BM. The correct one is:
d4 (in strong field ligand in octahedral complexes)
d4 (in weak field ligand in octahedral complexes)
d3 (in weak as well as strong field ligand in octahedral complexes)
d5 (in strong field ligand in octahedral complexes)
- 6. Multiple Choice
The IUPAC name of the compound [Cu (NH3)4](NO3)2 is :
Cuprammonium nitrate
Tetraammine copper (II) dinitrate
Tetraammine copper (II) nitrate
Tetraammine copper (III) dinitrate
- 7. Multiple Choice
EAN (Effective Atomic Number) of a metal carbonyl M(CO)x is 36. If atomic number of metal M is 26, what is the value of x ?
4
8
5
6
- 8. Multiple Choice
Co-ordination compounds have great importance in biological systems. In this context, which statement is incorrect ?
Carboxypeptidase A is an enzyme and contains zinc
Haemoglobin is the red pigment of blood and contains iron
Cyanocobalmin is B-12 and contains cobalt
Chlorophylls are green pigments in plants and contain calcium
- 9. Multiple Choice
The coordination compounds,[Co(NH3)6]3+, [Cr(CN)6]3- and [Cr(NH3)6]3+, [Co(CN)6]3- are examples of...
Linkage isomerism
Coordination isomerism
Ionization isomerism
Geometrical isomerism
- 10. Multiple Choice
The sum of coordination number and oxidation number of the metal M in the complex [M(en)2 C2O4] Cl are
6
7
8
9
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