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Coordination Compounds
Quiz 1
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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
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