Coordination Compounds Test

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Coordination Compounds Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

How many number of isomers of the complex [MCl₂Br₂]SO₄ is possible?

A
2

B
5

C
1

D
4

Solution

4 isomers of complex [MCl₂Br₂]SO₄ is possible.

The correct answer is: 4
Question 2
1 / -0

Statement-1:H₂N-NH₂ is a chelating ligand.

Statement-2: A chelating ligand must possess two ormore lone pairs at such a distance that itmay form suitable strain free rings at themetal ion.

A
Both Statement-1 and Statement-2 are true and Statement-2 is the correct explanation of Statement-1.

B
Both Statement-1 and Statement-2 are true and Statement-2 is not the correct explanation of Statement-1.

C
Statement-1 is true but Statement-2 is false.

D
Statement-1 is false but Statement-2 is true.

Solution

H₂N NH₂ does not act as chelating ligand. The coordination by hydrazine leads to a three member highly unstable strained ring and thus it does not act as chelating agent.

The correct answer is: Statement-1 is false but Statement-2 is true.
Question 3
1 / -0

The IUPAC name of the red coloured complex [Fe(C₄H₇O₂N₂)₂] obtained from the reaction of Fe²⁺ and dimethyl glyoxime

A
bis (dimethyl oxime) iron (II)

B
bis (2,3- butanediol dioximato) iron (II)

C
bis (2,3- butanedione dioximato) iron (II)

D
bis (dimethyl oxime) ferrate (II)

Solution

The IUPAC name [Fe(C₄H₇O₂N₂)₂] is

bis (2,3- butanedione dioximato) iron (II).

The correct answer is: bis (2,3- butanedione dioximato) iron (II)
Question 4
1 / -0

Statement-1: [Ni(CO)₄] has square planar geometry while [Ni(CN)₄]^4- has tetrahedral geometry.

Statement-2: Geometry of any complex depends upon the nature of ligands attached.

A
Both Statement-1 and Statement-2 are true and Statement-2 is the correct explanation of Statement-1.

B
Both Statement-1 and Statement-2 are true and Statement-2 is not the correct explanation of Statement-1.

C
Statement-1 is true but Statement-2 is false.

D
Statement-1 is false but Statement-2 is true.

Solution

Ni(CO)₄ has tetrahedral geometry and [Ni(CN)₄]^4– has square planer geometry. [Ni(CO)₄] possesses sp³ hybridization whereas [Ni(CN)^4– has dsp² hybridization to show square planer geometry.

The correct answer is: Statement-1 is false but Statement-2 is true.
Question 5
1 / -0

Coordination isomerism could not be shown by

A
[Ag(NH₃)₂][CuCl₂]

B
A and C are correct.

C
[Co(NH₃)₅Cl]SO₄

D
[Al(H₂O)₆][Co(CN)₆]

Solution

[Ag(NH₃)₂][CuCl₂] and [Co(NH₃)₅Cl]SO₄ could not show coordination isomerism.

The correct answer is: [Ag(NH₃)₂][CuCl₂], [Co(NH₃)₅Cl]SO₄
Question 6
1 / -0

In which of the following complexes there are d⁵configurations?

A
[MnCI₄]^2–

B
[Fe(H₂O)₆]³⁺

C
[Fe(CN)₆)^4–

D
A and B are correct.

Solution

Fe(III) : 3d¹; d²sp³ (paired spin complex, CN^- being a strong ligand)

Fe(II) : 3d⁰; d²sp³ (paired spin complex)

Fe(III) : 3d⁵; sp³d² (free spin complex, H₂O being a weak ligand)

Mn(II) : 3d⁵; sp³ (free spin complex, Cl^- being a weak ligand)

The correct answer is: [Fe(H₂O)₆]³⁺, [MnCI₄]^2–

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Re-Attempt Weekly Quiz Competition

Coordination Compounds Test - 2

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Coordination Compounds Test - 2

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Question 1

2

5

1

4

Solution

Question 2

Both Statement-1 and Statement-2 are true and Statement-2 is the correct explanation of Statement-1.

Both Statement-1 and Statement-2 are true and Statement-2 is not the correct explanation of Statement-1.

Statement-1 is true but Statement-2 is false.

Statement-1 is false but Statement-2 is true.

Solution

Question 3

bis (dimethyl oxime) iron (II)

bis (2,3- butanediol dioximato) iron (II)

bis (2,3- butanedione dioximato) iron (II)

bis (dimethyl oxime) ferrate (II)

Solution

Question 4

Both Statement-1 and Statement-2 are true and Statement-2 is the correct explanation of Statement-1.

Both Statement-1 and Statement-2 are true and Statement-2 is not the correct explanation of Statement-1.

Statement-1 is true but Statement-2 is false.

Statement-1 is false but Statement-2 is true.

Solution

Question 5

[Ag(NH3)2][CuCl2]

A and C are correct.

[Co(NH3)5Cl]SO4

[Al(H2O)6][Co(CN)6]

Solution

Question 6

[MnCI4]2–

[Fe(H2O)6]3+

[Fe(CN)6)4–

A and B are correct.

Solution

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[Ag(NH₃)₂][CuCl₂]

[Co(NH₃)₅Cl]SO₄

[Al(H₂O)₆][Co(CN)₆]

[MnCI₄]^2–

[Fe(H₂O)₆]³⁺

[Fe(CN)₆)^4–