NCERT chemistry coordinate compounds questions,solutions,answers,pdfs

Coordinate Compound Mock Exam-7

Question No:1

In an octahedral crystal field, the t2 g orbitals are

[A] Raised in energy by 0.4Δ 0
[B] (C) Raised in energy by 0.6Δ 0
[C] (B) Lowered in energy by 0.4Δ 0
[D] Lowered in energy by 0.6 Δ 0

Question No:2

If Δ 0< P, the correct electronic configuration for d4 system will be :-

[A] t2g4 eg0
[B] t2 g3 eg1
[C] t2 g0 tg4
[D] t2 g2 eg2

Question No:3

Match List–I(Complex ions) with List–II(Number of Unpaired Electrons) and select the correct answer using the codes given below the lists :-
List –I(Complex ions) — List II(Number of Unpaired Electrons)

A. [CrF6]4– i. One
B. [MnF6]4– ii. Two
C.[Cr(CN) 6]4– iii. Three
D.[Mn(CN) 6]4– iv. Four
v. Five
Code :

[A] iv i ii v
[B] ii v iii i
[C] iv v ii i
[D] ii i iii v

Question No:4

For the t2g 6eg2 system, the value of magnetic moment( µ) is :

[A] 2.83 B.M.
[B] 1.73 B.M.
[C] 3.87 B.M.
[D] 4.92 B.M.

Question No:5

The species having tetrahedral shape is :-

[A] [PdCl4] 2–
[B] [Ni(CN)4]2–
[C] (B) [Pd(CN) 4]2
[D] [NiCl4]2–

Question No:6

Which of the following complexes are paramagnetic in nature :-
[Fe(CN) 6] 3–
[Fe(CN) 6] 4–
[CoF6 ] 3–
Ni(CO) 4

[A] Only I
[B] I and II
[C] I and III
[D] III and IV

Question No:7

Among the complex ions given below which is/are outer-orbital complex :
[Co(CN) 6 ] 3–
[Fe(H2 O) 6 ] 2+
[FeF6 ] 3–
[CoF6 ] 3–

[B] II, III only
[C] I , IV only
[D] II only

Question No:8

In which of following pairs of species the number of unpaired electrons are same :-

[A] [CoF6] 3–, [FeF6] 3–
[B] B) [Fe(CN) 6] 3–, [Fe(CN) 6] 4–
[C] [Fe(CN) 6] 3–, [Ni(CN) 4] 2–
[D] [CoF6] 3–, [Fe(H2O) 6] 2+

Question No:9

Which of the following sets is/are example of co-ordination isomerism in complexes ?

[A] [Co(NH3)6] [Cr(CN)6] and [Cr(NH3)6] [Co(CN)6]
[B] [Cr(H2O)5Cl]Cl2.H2O and [Cr(H2O)4Cl2]Cl.2H2O
[C] [Co(NH3)5Br]SO3and [Cr(NH3)5SO4]Br
[D] [Pt(NH3)2Cl2] and [Pt(NH3)4] [PtCl4]

Question No:10

Which of the following does/do not exhibit optical isomerism

[A] Tetrahedral complexes
[B] Square planar complexes
[C] Octahedral complexes
[D] Polynuclear complexes

Question No:11

The number of geometrical isomers of [Co(NH3)3(NO3)3] are :

[A] 0
[B] 2
[C] 3
[D] 4

Question No:12

A square planar complex is c is platin [Pt(NH3)2Cl2], shows :

[A] Geometrical isomerism
[B] Optical isomerism
[C] Linkage isomerism
[D] None

Question No:13

The two compounds sulphato penta-ammine cobalt(III) bromide and sulphato penta-ammine cobalt(III) chloride represent :

[A] Linkage isomerism
[B] Ionisation isomerism
[C] Co-ordination isomerism
[D] No isomerism

Question No:14

The number of isomeric forms in which [Co(NH3)4Cl2]1+ ion can occur is

[A] 2
[B] 3
[C] 4
[D] 1

Question No:15

Which of the following set of isomerism is wrong :

[A] Cis-[Co(gly) 2Cl2] ——-optical isomerism
[B] [Zn(NH3)3Cl] + —- Geometrical isomerism
[C] [Fe(H2O)6]Cl3——Hydrate isomerism
[D] [Co(en) 2 (NCS) 2]Cl—-Linkage isomerism