Q.1
[Cu(NH3)4]has the following geometry
  • square planar
  • tetrahedral
  • octahedral
  • none of these
Q.2
The IUPAC name of the complex [Co (NH3)4 ClCl is
  • dichloro tetraammine cobalt (III) chloride
  • tetraammine dichloro cobalt (III) chloride
  • tetraammine dichloro cobalt (II) chloride
  • tetraammine dichloro cobalt (IV) chloride
Q.3
Pick out the odd one out.
  • CN-
  • Cl-
  • SO42-
  • C2O42-
Q.4
Father of Coordination chemistry
  • Werner
  • Arrhenius
  • Einstein
  • Newton
Q.5
A molecule that cannot be superimposed on its mirror image is said to exhibit which of the following?
  • geometrical isomerism
  • optical isomerism
  • linkage isomerism
  • reactive isomerism
Q.6
In K4[Fe(CN)the number of unpaired electrons in iron are
  • 0
  • 2
  • 3
  • 5
Q.7
The coordination compounds,[Co(NH3)6]3+, [Cr(CN)6]and [Cr(NH3)6]3+, [Co(CN)6]are examples of...
  • Linkage isomerism
  • Coordination isomerism
  • Ionization isomerism
  • Geometrical isomerism
Q.8
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
Q.9
The value of 'spin only' magnetic moment for one of the following configurations is 2.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)
Q.10
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
Q.11
The compound having lowest oxdation state of iron is
  • K4[Fe(CN)6]
  • K2FeO4
  • [Fe(CO)5]
  • K3[Fe(CN)6]
Q.12
Octahedral has coordination number
  • 6
  • 4
  • 5
  • 3
Q.13
Square planar has coordination number
  • 4
  • 6
  • 3
  • 2
Q.14
The oxidation state of Cr in [Cr(NH3)4Cl2]+ is
  • +3
  • +2
  • +1
  • 0
Q.15
A ligand can also be regarded as
  • Lewis acid
  • Bronsted base
  • Lewis base
  • Bronsted acid
Q.16
IUPAC name of [Pt(NH3)2Cl(NO2)] is
  • Platinum diamminechloronitrite (II)
  • Chloronitrito-N-ammineplatinum
  • Diamminechloridonitrito-N-platinum (II)
  • Diamminechloronitrito-N-plantinate (II)
Q.17
In the complex [E(en)2(C2O4)]NO2 (where (en) is ethylenediamine) _______are the coordination number and the oxidation state of the element ‘E’ respectively.
  • 6 and 2
  • 2 and 2
  • 4 and 3
  • 6 and 3
Q.18
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
  • 9
  • 6
  • 7
  • 8
Q.19
A complex compound in which the oxidation number of a metal is zero is
  • K4 [Fe (CN)6]
  • K3 [Fe (CN)6]
  • [Ni (CO)4]
  • [Pl (NH3 )4]Cl2
Q.20
Which of the following species is not expected to be a ligand
  • NO
  • NH4+
  • NH2CH2CH2NH2
  • CO
0 h : 0 m : 1 s