B.Sc. Second year
Undergraduate degree course Semester Fourth Inorganic chemistry paper X
Chapter- Coordination compounds MCQ
1) The bond between central metal ion and ligand in complex compound.
a) coordinate bond
b)
covalent
c)
metallic
d)
ionic
a)
It corresponds to Oxidation state
b)
They are non directional
c)
lt is ionisable
d)
All of these
3)
The namber of secondary valency in [CoCl3]3NH3 is________
a)
zero
b)
one
c)
six
d)
three
4)
Which of the following has higher molar conductance?
a)
[CoCl3 ]6NH3
b)
[CoCl3]5NH3
c)
[CoCl3 ]4NH3
d)
[CoCl 3]NH3
5)
The number of ions formed by the complex K4[Fe(CN)6] is___________
a)
three
b)
fourth
c)
five
d)
six
6)
Which of the following is not bidentate ligand?
a)
Gly
b)
Oxalate
c)
O2-
d)
ethylene diamine
7)
In EDTA, total number of chelating rings are_____________
a)
5
b)
3
c)
4
d)
6
8)
In triethylene tetrammine the number of donar atoms are________
a)
1
b)
2
c)
3
d)
4
9)
The coordination number of the metals depends on its following factor
are____________
a)
charge on its metal ion
b)
charge on its ligand
c)
forces of repulsion between its ligand
d)
all of these
10)
The correct name [CrCl2 (H2O)4] NO3
is_________
a)
dichlorotetraaqueouschromium (III) nitrate
b)
tetraaquodichlorochromate (II) nitrate
c)
dlchlorotetraaqueouschromium (IV) nitrate
d)
tetraaquadichlorochromium (III) nitrate
11)
The correct name for the complex K3 [Fe(C2O4)3]
is________
a)
potassium ferric Oxalate
b)
potassium iron (III) trioxalate
c)
potassiuin trioxalato iron (III)
d)potassium
trioxalatoferrate (III).
12)
The correct name for the complex [Pt(NH3)2 Cl4]
is_________
a)
platinum diammine tetrachloride
b
platinum tetrachiorodiammine
c)
tetrachlorodiammine platinate (IV)
d) diamminetetrachloro platinum (IV)
13)
The correct name for the complex ion [Co(en)2 Cl (ONO)]+
is
a)
cobalt diethylene diamine chloronitrate
b)
chlorodiethyldiaminenitrito cobalt (III)
c)
chloronitritodiethyldiamine cobaltate (III)
d)
chlorobis (ethylenediamine) nitrito cobalt (III)
14)
The correct IUPAC name of Mn3 (CO)12 is________
a)
dodecacarbonylmanganate (0)
b)
dodecacarbonylmanganic (II)
c)
dodecacarbonyl trimanganese (0)
d)
manganicdodecacarbonyl (0)
15)
The effective atomic number of Cr (atomic no.24) in [Cr 6(NH3)] Cl3
is________
a)
35
b)
27
c)
33
d)
36
16)
In the metal carbonyls of the general formula M (CO)x where M metal;
x=4, the metal is bonded to ?
a)
carbon and oxygen
b)
carbon
c)
Oxygen
d)
C-O triple bond
17)
Which of the following statements is in Werners theory
a)
Primary valency Is the same thing
b)
Secondary valency is the same thing number as oxidation as Co-ordination
c)
Secondary valencies are satisfied by -ve ions
d)
Secondary valencies are directional where as valencies are non directional
18)
The number of ions produced from one molecule [PtNH3)5CI]Cl3,
in the aqueous solution will be______
a)
3
b)
4
c)
5
d)
6
19)
The complex [CoCl3] 5NH3 in aqueous solution in ions to
give a total number of ions equal to_______
a)
0
b)
2
c)
4
d)
3
20)
The complex [CoCl3 ]3NH3 ionizes to give______
a)
1 Cl ions
b)
2 C ions
c)
3 CI ions
d)
No Cl ions
21)
The co-ordination nunmber of a metal in co-ordinate compounds is
a)
Same as primary valency
b)
Sum of primary and secondary valencies
c)
Same as secondary valency
d)
None of the above
22)
According to the postulates of Werner for coordination compounds
a)
primary valency is ionizable
b)
secondary valency is ionizable
c)
primary and secondary valencies are non ionizable
d)
only primary valency is non-ionizable
23)
Dimethyl glyoxime is used for estimation of
a)
nickel
b)
cobalt
c)
zinc
d)
manganese
24)
Cyanide method is used for the extraction of
a)
gold
b)
nickel
c)
copper
d)
calcium
25)In
which one of the following species does the transition metal ion have d3 electronic
configuration?
a)
[Cr(NH3)6]3+
b)
[Co(OH2)6]2+
c)
[CoF6]3-
d)
[Fe(CN)6]3-
26)A molecule that cannot be superimposed on its mirror image is said to exhibit which of the following?
a)
geometrical isomerism
b)
optical isomerism
c)
linkage isomerism
d)
reactive isomerism
27) Select the correct IUPAC name for: [Co(NH3)6]2+
a)
hexammoniacobaltate(II) ion
b)
hexaamminecobaltate(II) ion
c)
hexammoniacobalt(II) ion
d)
hexaamminecobalt(II) ion
28) In coordination chemistry, the donor atom of a ligand is
a)
a Lewis acid.
b)
the counter ion
c)
the central metal atom.
d)
the atom in the ligand that shares an electron pair with the metal.
29)The ______ sphere is enclosed in brackets in formulas for complex species, and it includes the central metal ion plus the coordinated groups.
a)
ligand
b)
donor
c)
oxidation
d)
coordination
30) Which of the following cannot be a ligand?
a) Ni2+
b) Cl–
c) H2O
d) NH3
a) Central atom
b) Ligand
c) Coordination entity
d) Coordination compound
32) The groups satisfying the secondary valencies of a cation in a complex are called
a) Ligandsb) Radicals
c) Primary valencies
33) The number of ions formed on dissolving
one molecule of FeSO4(NH4)2SO4.6H2O
in water is
b) 5
c) 3
34) The number of unidentate ligands in
the complex ion is called
a) Effective atomic number
Coordination number
c) Primary
valency
d) Oxidation
number
35) The oxidation state of Cr in
[Cr(NH3)4Cl2]+ is
b) +2
c) +1
36) Which response gives the correct
coordination number and oxidation number of the transition metal atom in
[Co(NH3)2(H2O)2Cl2]+?
a) C.N.
= 2; O.N. = +3
b) C.N.
= 3; O.N. = +1
c) C.N.
= 4; O.N. = +2
d) C.N.
= 6; O.N. = +3
37) Which one of the following is a
monodentate ligand?
a) CN−
b) EDTA
c) C2O4−
d) H2NCH2CH2NH2
38) Consider the coordination compound,
Na2[Pt(CN)4]. The Lewis acid is
a) [Pt(CN)4]2-
b) Pt
c) Pt2+
d) CN
39) Consider the coordination compound,
K2[Cu(CN)4]. A coordinate covalent bond exists between
a) K+
and CN-
b) Cu2+
and CN-
c) K+
and [Cu(CN)4]2-
d) C
and N in CN
40) Which of the following compound will
furnish Fe3+ ions in solution?
a) [Fe(CN)6]3
–
b) Fe2(SO4)3
c) [Fe(CN)6]
4 –
d) None
of these
41) The IUPAC name for the complex
[Co(NO2)(NH3)5]Cl2 is
a) nitrito-N-pentaamminecobalt
(III) chloride
b) nitrito-N-pentaamminecobalt
(II) chloride
c) pentaamminenitrito-N-cobalt
(II) chloride
d) pentaamminenitrito-N-cobalt
(III) chloride
42) The IUPAC name of the coordination
compound K3[Fe(CN)6] is
a) Potassium
hexacyanoferrate (II)
b) Potassium
hexacyanidoferrate (III)
c) Potassium
hexacyanoiron (II)
d) tripotassiumhexcyanoiron
(II)
43) Which coordination compound is named incorrectly?
a) [Co(NH3)5Cl]SO4
pentaamminechloridocobalt(III) sulphate
b) [Ag(CN)2]−
dicyanidoargentate(I) ion
c) [Co(NH3)4Cl2]Cl
tetraamminedichloridocobalt(III) chloride
d) [Pt(en)2Cl2]Cl2
diethylenediaminedichloroplatinum(IV) chloride
e)
44) Determine the chemical formula for
the compound, diamminetetraaquairon
(II)chloride.
a) [Fe(NH3)2(H2O)4Cl]
b) [Fe(NH3)2][(H2O)4Cl]
c) [Fe(NH3)2(H2O)4]Cl2
d) [Fe(H2O)4][(NH3)2Cl]
45) Which one of the following compounds
will exhibit linkage isomerism
a) [Pt
(NH3)2 Cl2]
b) [Co
(NH3)5 NO2] Cl2
c) [Co
(NH3)4 Cl2] NO2
d) [Ag
(NH3)2] NO2
46) Which one of the following has an
optical isomer? (en = ethylenediamine)
a) [Zn(en)(NH3)2]2+
b) [Co(en)3]3+
c) [Co(H2O)4(en)]3+
d) [Zn(en)2]2+
47) Which of the following square planar
complex ions can have cis-trans isomers?
a) [Pt(NH3)4]2+
b) [Ni(NH3)4]2+
c) [Pt(NH3)2Cl2]
d) [Pt(NH3)Cl3]−
48) A complex with the
composition [MA2B2]X2 is found to have no
geometrical isomers. Both A and B are monodentate ligands. The structure
of the complex is
a) linear.
b) square
planar.
c) tetrahedral.
d) octahedral.
49) Which of the following pairs of
coordination compounds or complex ions are examples of linkage
isomers?
a) [Cu
(NH3)5Br]Cl and [Cu(NH3)5Cl]Br
b) [Fe
(NH3)2(H2O)4]Cl2and
[Fe(NH3)4(H2O)2]Cl2
c) [Fe
(CO)5NO2]2+ and [Fe(CO)5ONO]2+
d) [Fe
(NH3)2(H2O)4]Cl2 and
[Fe(NH3)2(H2O)4]Br2
e)
50)
Which of the following compounds can exhibit cis-trans isomerism?
a) [Fe(CO)5NO2]2+
b) [Cu(CO)5Cl]+
c) [MnClBr3]2-
d) [Ni(CO)2(NH3)2]2+
51) Which one of the following complexes
can exhibit geometrical isomerism?
a) [Pt(NH3)2Cl2]
(square planar)
b) [Zn(NH3)2Cl2]
(tetrahedral)
c) [Cu(NH3)4]2+
(square planar)
d) [Co(NH3)5Cl]2+
(octahedral)
52) Exchange of co-ordination group by a
water molecule in complex molecule results in
a) Ionisation
isomerism
b) Ligand
isomerism
c) Hydration
isomerism
d) Geometrical isomerism
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 Semester Fourth, Inorganic chemistry paper-X){kind=link}