Coordination Compounds MCQs | Question – Paper 5


Topic: Coordination Compounds, Test No.: 05, Total MCQs: 10

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Question 1
Which one of the following complex ions has geometrical isomers?
A
[Cr (NH3)4 (en)]3+
B
[Co (en)3]3+
C
[Ni (NH3)5 Br]+
D
[Co (NH3)2 (en)2]3+
Question 2

Which one of the following cyano complexes would exhibit the lowest value of paramagnetic behaviour?

(At. No. Cr = 24, Mn = 25, Fe = 26, Co = 27)

A
[Cr(CN)6]3–
B
[Mn(CN)6]3–
C
[Fe(CN)6]3–
D
[Co(CN)6]3–
Question 3
Which one of the following has a square planar geometry? (At. Nos. Co = 27, Ni = 28, Fe = 26, Pt = 78)
A
[CoCl4]2–
B
[FeCl4]2–
C
[NiCl4]2–
D
[PtCl4]2–
Question 4
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+
Question 5
Which kind of isomerism is exhibited by octahedral Co(NH3)4Br2Cl?
A
Geometrical and ionisation
B
Geometrical and optical
C
Optical and ionisation
D
Geometrical only
Question 6
Which of the following compounds shows optical isomerism?
A
[Cu(NH3)4]2+
B
[ZnCl4]2–
C
[Cr(C2O4)3]3–
D
[Co(CN)6]3–
Question 7
Which of the following facts about the complex [Cr(NH3)6]Cl3 is wrong?
A
The complex gives white precipitate with silver nitrate solution
B
The complex involves d2sp3 hybridization and is octahedral in shape
C
The complex is paramagnetic
D
The complex is an outer orbital complex
Question 8
Which of the following has an optical isomer?
A
[Co(NH3)3 Cl]+
B
[Co(en) (NH3)2]2+
C
[Co(H2O)4 (en)]3+
D
[Co(en)2 (NH3)2]3+
Question 9
Which of the following pairs represents linkage isomers?
A
[Pd(P Ph3)2 (NCS)2] and [Pd(P Ph3)2(SCN)2]
B
[Co (NH3)5 NO3]SO4 and [Co(NH3)5SO4] NO3
C
[Pt Cl2(NH3)4]Br2 and [PtBr2(NH3)4]Cl2
D
[Cu(NH3)4] [PtCl4] and [Pt(NH3)4] [CuCl4]
Question 10
Which of the following statements is incorrect?
A
In K4 [Fe(CN)6], the ligand has satisfied both primary and secondary valencies of ferrous ion.
B
In [Cu(NH3)4]SO4, the ligand has satisfied only the secondary valency of copper.
C
In K3[Fe(CN)6] , the ligand has satisfied only the secondary valency of ferric ion.
D
In K3[Fe(CN)6], the ligand has satisfied both primary and secondary valencies of ferric ion.
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