Coordination Compounds Test

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Coordination Compounds Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Nickel (Z = 28) combines with an uninegative monodentate ligand X^- to form a paramagnetic complex [NiX₄ ]^2-.

State the number of unpaired electrons in nickel and geometry of this complex ion.

A
Two, square planar

B
One, tetrahedral

C
Two, tetrahedral

D
One, square planar
Question 2
1 / -0

An example of chelating ligand is

A
nitro

B
bromo

C
chloro

D
en
Question 3
1 / -0

The ligand (en) is an example of a

A
monodentate ligand

B
bidentate ligand

C
tridentate ligand

D
hexadentate ligand
Question 4
1 / -0

IUPAC name of [Ni(CO)₄] is

A
tetracarbonylnickel(II)

B
tetracarbonylnickel(0)

C
tetracarbonylnickel(III)

D
tetracarbonylnickelate(0)
Question 5
1 / -0

The oxidation state of Cr in K[Cr(NH₃)₃Cl₃] is

A
+ 1

B
+ 2

C
+ 3

D
+ 4
Question 6
1 / -0

The number of geometrical isomers of [Cr(NH₃)(OH)₂Cl₃]^2– ion is

A
1

B
2

C
3

D
4
Question 7
1 / -0

Which of the following complexes is/are of low spin?

A
[Co(H₂O)₆]³⁺

B
[Ni(CN)₄]^2-

C
[CoF₆]^3-

D
All of the above
Question 8
1 / -0

Ligand en is an example of

A
Didentate ligand

B
Monodentate ligand

C
Tridentate ligand

D
Hexadentate ligand

Solution

A ligand which can bind through two donor atoms is called a didentate ligand like en or ethane-1,2-diamine (NH₂CH₂CH₂NH₂) which has two donor N atoms.
Question 9
1 / -0

The coordination number of Co in the complex compound [Co(NH₃)₆]CI₃ is

A
6

B
4

C
9

D
5

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Coordination Compounds Test - 2

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Coordination Compounds Test - 2

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Question 1

Two, square planar

One, tetrahedral

Two, tetrahedral

One, square planar

Question 2

nitro

bromo

chloro

en

Question 3

monodentate ligand

bidentate ligand

tridentate ligand

hexadentate ligand

Question 4

tetracarbonylnickel(II)

tetracarbonylnickel(0)

tetracarbonylnickel(III)

tetracarbonylnickelate(0)

Question 5

+ 1

+ 2

+ 3

+ 4

Question 6

1

2

3

4

Question 7

[Co(H2O)6]3+

[Ni(CN)4]2-

[CoF6]3-

All of the above

Question 8

Didentate ligand

Monodentate ligand

Tridentate ligand

Hexadentate ligand

Solution

Question 9

6

4

9

5

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[Co(H₂O)₆]³⁺

[Ni(CN)₄]^2-

[CoF₆]^3-