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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
The compound having lowest oxdation state of iron is
Among the following ions which one has the highest paramagnetism ?
In K4[Fe(CN)6] the number of unpaired electrons in iron are
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)
The IUPAC name of the compound [Cu (NH3)4](NO3)2 is :
Tetraammine copper (II) dinitrate
Tetraammine copper (II) nitrate
Tetraammine copper (III) dinitrate
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 ?
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
The coordination compounds,[Co(NH3)6]3+, [Cr(CN)6]3- and [Cr(NH3)6]3+, [Co(CN)6]3- are examples of...
The sum of coordination number and oxidation number of the metal M in the complex [M(en)2 C2O4] Cl are