Coordination Compounds Test

Question 1
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Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.
Q.
Among the following complexes the one which shows zero crystal field stabilisation energy is

A
[Co(H₂O)₆]²⁺

B
[Co(H₂O)₆]³⁺

C
[Mn(H₂O)₆]³⁺

D
[Fe(H₂O)₆]³⁺

Question 2
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The wavelength of light absorbed is highest in

A
[Co(NH₃)₅CI]²⁺

B
[Co(NH₃)₅H₂O]³⁺

C
[Co(NH₃)₆]³⁺

D
[Co(en)₃]³⁺

Question 3
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The CFSE for octahedral [CoCI₆]^4- is 18000 cm^-1. Then the CFSE for tetrahedral [CoCI₄]^2- will be

A
18000cm^-1

B
16000cm^-1

C
8000cm^-1

D
20000cm^-1

Question 4
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The crystal field splitting energy (Δ_o) of
I. [CoBr₆]^3- II. [CoF₆]^3-
III. [Co(NCS)₆]^3- IV. [Co(CN)₆]^3- is in the order of

A
I < II < III < IV

B
II < IV < I < III

C
Ill < I < IV < II

D
IV < III < II < I

Question 5
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A magnetic moment of 1.73 BM will be shown by one among the following

A
[Cu(NH₃)₄]²⁺

B
[Ni(CN)₄]^2–

C
TiCl₄

D
[CoCl₆]^4–

Question 6
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The correct order o f ligand field strength is

A
H₂O < Cl^- < CO < NH₃

B
CO < NH₃ < Cl^- < H₂O

C
H₂O < CO < NH₃ < Cl^-

D
Cl^- < H₂O < NH₃ < CO

Question 7
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The crystal field splitting energies (CFSE) of high spin and low spin d⁶ metal complexes in octahedral complex in terms of Δ_o respectively are

A
-0.4 and -2.4

B
-2.4 and -0.4

C
-0.4 and 0.0

D
-2.4 and 0.0

Question 8
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The Δ_t of the following complexes follows the order
I. [CoCI₄]^2-
II. [CoBr₄]^2-
III. [Co(NCS)₄]^2-

A
Ill > I > II

B
I > II > III

C
II > I > III

D
Ill > II > I

Question 9
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In which of the following coordination entities, the magnitude Δ_o (CFSE in octahedral field) will be maximum ?

A
[Co(H₂O)₆]³⁺

B
[Co(NH₃)₆]³⁺

C
[Co(CN)₆]^3-

D
[Co(C₂O₄)^3-

Question 10
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The increasing order of wavelength of absorption for the complex ions
I. [Cr(NH₃)₆]³⁺
II. [CrCI₆]^3-
III. [Cr(H₂O)₆]³⁺
IV. [Cr(CN)₆]^3-
is :

A
IV < I < III < II

B
IV < III < II < I

C
IV < II < III < I

D
II < III < I < IV

Question 11
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Matching List Type
Direction (Q. No. 11-12) Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d) out of which one is correct.
Q.
Match the Column I with Column II and mark the correct option from the codes given below.

A
a

B
b

C
c

D
d

Question 12
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Match the Column I with Column II and mark the correct option from the codes given below.

A
a

B
b

C
c

D
d

Question 13
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Statement Type
Direction (Q. No. 13) This section is based on Statement I and Statement II. Select the correct answer from the codes given below.
Q.
Statement I : The value of CFSE for the octahedral complex [Co(NH₃)₆]³⁺ is - 2.4Δ_o.
Statement II : The ammonia molecule is strong field ligand.

A
Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I

B
Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I

C
Statement I is correct but Statement II is incorrect

D
Statement II is correct but Statement I is incorrect

Submit Test

Coordination Co...

Question 1

[Co(H2O)6]2+

[Co(H2O)6]3+

[Mn(H2O)6]3+

[Fe(H2O)6]3+

Question 2

[Co(NH3)5CI]2+

[Co(NH3)5H2O]3+

[Co(NH3)6]3+

[Co(en)3]3+

Question 3

18000cm-1

16000cm-1

8000cm-1

20000cm-1

Question 4

I < II < III < IV

II < IV < I < III

Ill < I < IV < II

IV < III < II < I

Question 5

[Cu(NH3)4]2+

[Ni(CN)4]2–

TiCl4

[CoCl6]4–

Question 6

H2O < Cl- < CO < NH3

CO < NH3 < Cl- < H2O

H2O < CO < NH3 < Cl-

Cl- < H2O < NH3 < CO

Question 7

-0.4 and -2.4

-2.4 and -0.4

-0.4 and 0.0

-2.4 and 0.0

Question 8

Ill > I > II

I > II > III

II > I > III

Ill > II > I

Question 9

[Co(H2O)6]3+

[Co(NH3)6]3+

[Co(CN)6]3-

[Co(C2O4)3-

Question 10

IV < I < III < II

IV < III < II < I

IV < II < III < I

II < III < I < IV

Question 11

a

b

c

d

Question 12

a

b

c

d

Question 13

Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I

Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I

Statement I is correct but Statement II is incorrect

Statement II is correct but Statement I is incorrect

User

Question Analysis

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[Co(H₂O)₆]²⁺

[Co(H₂O)₆]³⁺

[Mn(H₂O)₆]³⁺

[Fe(H₂O)₆]³⁺

[Co(NH₃)₅CI]²⁺

[Co(NH₃)₅H₂O]³⁺

[Co(NH₃)₆]³⁺

[Co(en)₃]³⁺

18000cm^-1

16000cm^-1

8000cm^-1

20000cm^-1

[Cu(NH₃)₄]²⁺

[Ni(CN)₄]^2–

TiCl₄

[CoCl₆]^4–

H₂O < Cl^- < CO < NH₃

CO < NH₃ < Cl^- < H₂O

H₂O < CO < NH₃ < Cl^-

Cl^- < H₂O < NH₃ < CO

[Co(H₂O)₆]³⁺

[Co(NH₃)₆]³⁺

[Co(CN)₆]^3-

[Co(C₂O₄)^3-