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TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A
Published on: 13/10/2020
12th Standard Chemistry Coordination Chemistry English Medium Free Online Test One Mark Questions 2020 - 2021
Download Tamil Nadu 12th Standard Chemistry question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
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1.
The oxidation state of the central metal ion in the complex [Co(H2O)(CN)(en)2]2+ is________.
0
+1
+2
+3
2.
The chemical formula for diammine silver (I) chloride is _______.
[Ag(NH3)2] Cl
[Ag(NH3)]Cl
[Ag(NH2)2]Cl
[Ag(NH4)2]Cl
3.
Crystal field stabilization energy for high spin d4 octahedral complex is ______.
- 0. 6 \({ \triangle }_{ 0 }\)
- 1. 8 \({ \triangle }_{ 0 }\)
- 1. 6 \({ \triangle }_{ 0 }\)
- 1. 4 \({ \triangle }_{ 0 }\)
4.
______is used as an antitumor drug in cancer treatment.
Ca - EDTA
Cis - platin
Sodium thio sulphate
Nickel chloride
5.
According to IUPAC, No is _________.
nitro
nitrosyl
nitrate
nitrito
6.
Pick out the central metal ion in the complex K3[AI(C2O4)3].
3K+
Al3+
C2O42-
both (a) and (b)
7.
The isomerism exhibited by the complexes [Co(NH3)6] [Cr(CN)6] and [Cr(NH3)8] [CO(CN)6] is_______.
Geometrical
Coordination
linkage
ionisation
8.
An example of unidentate ligand is_______.
NH2 - CH2 - CH2 - NH2
C2O2-4
CH3COO-
both (b) and (c)
9.
Which of the following complexes does not give white precipitate with AgNO3?
[Co(NH3)6]Cl3
[Co(NH3)3Cl3]
[Co(NH3)5Cl]Cl3
[Co(NH3)4Cl2]Cl3
10.
A metal ion from the first transition series forms an octahedral complex with magnetic moment of 4.9 BM and another octahedral, complex which is diamagnetic. The metal ion is _______.
Fe2+
Co2+
Mn2+
Ni2+
11.
In [Fe11(CN)6]4-, the central metal ion is _______.
Fe
Fe2+
Fe3+
CN-
12.
An example of an ambidentate ligand is _______.
CN-
Cl-
NO-2
I-
13.
Fac-mer isomerism is shown by _______.
[CO(en)3]3+
[Co(NH3)4(Cl)2]+
[Co(NH3)3(Cl)3]
[Co(NH3)5Cl]SO4
14.
Formula of tris(ethane-1, 2-diamine)iron(II)phosphate _______.
[Fe(CH3-CH(NH2)2)3](PO4)3
[Fe(H2N-CH2-CH2-NH2)3](PO4)
[Fe(H2N-CH2-CH2-NH2)3](PO4)2
[Fe(H2N-CH2-CH2-NH2)3]3(PO4)2
15.
Which one of the following pairs represents linkage isomers?
[Cu(NH3)4][PtCl4] and [Pt(NH3)4][CuCl4]
[Co(NH3)5(NO3)]SO4 and [Co(NH3)5(ONO)]
[Co(NH3)4(NCS)2]Cl and [Co(NH3)4(SCN)2]Cl
both (b) and (c)
16.
Which type of isomerism is exhibited by [Pt(NH3)2Cl2]?
Coordination isomerism
Linkage isomerism
Optical isomerism
Geometrical isomerism
17.
In which of the following coordination entities the magnitude of Δ0 will be maximum?
[Co(CN)6]3-
[Co(C2O4)3]3-
[Co(H2O)6]3+
[Co(NH3)6]3+
18.
A magnetic moment of 1.73BM will be shown by one among the following.
TiCl4
[CoCl6]4-
[Cu(NH3)4]2+
[Ni(CN)4]2-
19.
As per IUPAC guidelines, the name of the complex [Co(en)2(ONO)Cl]Cl is _______.
chloro bis ethylenediamine nitrocobalt(III) chloride
chloridobis(ethane-1, 2-diamine)nitro K-O Cobaltate(III) chloride
chloridobis(ethane-1, 2-diammine)nitrito K-O Cobalt(II) chloride
chloridobis(ethane-1, 2-diamine)nitrito K-O Cobalt(III) chloride
20.
The sum of primary valence and secondary valence of the metal M in the complex [M(en)2(Ox)]Cl is________.
3
6
-3
9
1.
(d)
+3
2.
(a)
[Ag(NH3)2] Cl
3.
(a)
- 0. 6 \({ \triangle }_{ 0 }\)
4.
(b)
Cis - platin
5.
(b)
nitrosyl
6.
(b)
Al3+
7.
(b)
Coordination
8.
(c)
CH3COO-
9.
(b)
[Co(NH3)3Cl3]
10.
(a)
Fe2+
11.
(b)
Fe2+
12.
(c)
NO-2
13.
(c)
[Co(NH3)3(Cl)3]
14.
[Fe(H2N-CH2-CH2-NH2)3]3(PO4)2
[Fe(en)3]2+(\(PO_{4}^{3-}\))
15.
(a) coordination isomers
(b) no isomerism ( different molecular formula)
(c)⬅NCS; ⬅SCN coordinating atom differs : linkage isomers
16.
17.
In all the complexes, the central metal ion is Co3+, among the given ligands CN- is the strongest ligand, which causes large crystal
field splitting i.e maximum Δ0
18.
Ti4+ (d0 ⇒ 0BM)
Co2+ (d7 spain free ⇒ t2g5, e2g; n = 3; μ = 3.9BM)
Cu2+ (d9 Low spain ⇒ t2g6, e3g; n = 1; μ = 1.732BM)
Ni2+ (d8 Low spain ⇒ t2g6, e2g; n = 2; μ = 2.44 BM)
19.
(d)
chloridobis(ethane-1, 2-diamine)nitrito K-O Cobalt(III) chloride
20.
In the complex [M(en)2(Ox)]Cl For the central metal ion M3+
The primary valence is = +3
The secondary valence = 6
sum of primary valence and secondary valence = 3 + 6 = 9
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