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Coordination Compounds
Quiz 2
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Q.1
The IUPAC name of K2 [Ni (CN)is
Potassium tetracyanatonickelate (II)
Potassium tetracyanonickelate (III)
Potassium tetracyanonickel (III)
Potassium tetracyanatonickel (II)
Q.2
What is a ligand
An atom, molecule or ion that forms a dative covalent bond to a central metal ion in a complex.
An atom, molecule or ion that accepts a pair of electron from a central metal ion in a complex.
A central metal ion with one or more covalent bonds to it
A d-block element that has a partially filled d subshell
Q.3
Among the ligands NHen, CN- and CO, the correct order of field strength is
NH3 < en < CN– < CO
CN– < NH3 < CO < en
en < CN–< NH3 < CO
CO < NH3 < en < CN–
Q.4
Which type of defect has the presence of cations in the interstitial site?
Schottky defect
Frenkel defect
Metal deficiency defect
Vacancy defect
Q.5
When two or more stable compounds in solution are mixed together and allowed to evaporate, in certain cases there is a possibility for the formation of
coordination compounds
mixed salt
double salt
both a and c
Q.6
Which one is a neutral ligand?
H2O
NH3
CO
All of these
Q.7
Which one is an anionic complex?
K[Ag(CN)2]
[Ag(NH3)2]Cl
[Ni(CO)4]
[Co(NH3)6]Cl3
Q.8
Which one is a cationic complex?
K3[Fe(CN)6]
Na2[Ni(EDTA)]
[Co(en)2Cl2]Cl
K3[Fe(CN)5NO]
Q.9
In the complex [Co(NH3)5Cl]Cl, the coordination number is
3
5
6
4
Q.10
The coordination entity of K2[NiCl4]
NiCl4
K2[NiCl4
[NiCl4]2-
Ni2+
Q.11
The central metal ion of K4[Fe(CN)6]
Fe+
Fe2+
Fe3+
Fe4+
Q.12
Cobalamine, an essential vitamin is a coordination compound of
Al
Fe
Co
CO
Q.13
Coordination compounds play a vital role in
biological functions
catalytic applications
both a and b
none of these
Q.14
Which of the following pairs represents linkage isomers?
[Pd(P Ph3)2 (NCS)2] and [Pd(P Ph3)2(SCN)2]
[Co (NH3)5 NO3]SO4 and [Co(NH3)5SO4] NO3
[Pt Cl2(NH3)4]Br2 and [PtBr2(NH3)4]Cl2
[Cu(NH3)4] [PtCl4] and [Pt(NH3)4] [CuCl4]
Q.15
Which of the following compounds shows optical isomerism?
[Cu(NH3)4]2+
[ZnCl4]2–
[Cr(C2O4)3]3–
[Co(CN)6]3–
Q.16
The type of isomerism shown by the complex [CoCl2(en)is
Geometrical isomerism
Coordination isomerism
Linkage isomerism
Ionization isomerism
Q.17
Which of the following complexes can exhibit optical isomerism? (en = H2N–CH2–CH2–NH2 and is bidentate)
cis–Co(NH3)4Cl2
trans–Co(en)2Br2
cis–Co(en)2Cl2
Co(NH3)3Cl3
Q.18
Dextro-rotatory and Laevo-rotatory are
Diastereomers
Cis/trans isomers
fac/mer isomers
Enantiomers
Q.19
Which one of the following coordination compounds isused to inhibit the growth of tumours?
Trans-platin
EDTA complex of calcium
[(Ph3P)3RhCl]
Cis-platin
Q.20
Which one of the following complexes is an outer orbitalcomplex ?
[Co(NH3)6]3+
[Mn(CN)6]4–
[Fe(CN)6]4–
[Ni(NH3)6]2+
0 h : 0 m : 1 s
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