Coordination Compounds Test

Question 1
1 / -0

Vitamin B₁₂ is a complex of

A
cobalt(II) ion

B
cobalt(III) ion

C
chromium(II) ion

D
chromium(III) ion

Question 2
1 / -0

A group of atoms can function as a ligand only when

A
It is a small molecule

B
It is a positively charged ion

C
It is capable of acting as donor of electron pair

D
It is a compound.

Question 3
1 / -0

According to the postulates of Werner's theory, for coordination compounds,

A
primary valency is ionisable

B
secondary valency is ionisable

C
primary and secondary valencies are non-ionisable

D
primary and secondary valencies are ionisable

Question 4
1 / -0

Which of the following represents a chelate ligand?

A
H₂O

B
Cl^–

C
NH₂CH₂CH₂NH₂

D
OH^–

Question 5
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Which among the following is an ambidentate ligand?

A
Nitrito

B
Carbonyl

C
Acetate

D
Oxalate

Question 6
1 / -0

Ethylenediaminetetraacetate ion is a

A
bidentate ligand

B
tetradentate ligand

C
pentadentate ligand

D
hexadentate ligand

Question 7
1 / -0

Which of the following statements is not correct?

A
The complexes [NiCl₄]^2- and [Ni(CN)₄]^2- differ in the state of hybridisation of nickel.

B
The complexes [NiCl₄]^2- and [Ni(CN)₄]^2- differ in the magnetic properties.

C
The complexes [NiCl₄]^2- and [Ni(CN)₄]^2- differ in the geometries.

D
The complexes [NiCl₄]^2- and [Ni(CN)₄]^2- differ in the primary valencies of nickel.

Question 8
1 / -0

In the following question, a statement of Assertion is given; followed by a corresponding statement of Reason just below it. Mark the correct answer as:

(a)    If both assertion and reason are true and reason is the correct explanation of assertion
(b) If both assertion and reason are true, but reason is not the correct explanation of assertion
(c)    If assertion is true statement, but reason is false
(d)    If both assertion and reason are false

Assertion: [Ni(en)3Cl2]Cl2 (en = ethylene diamine) has lower stability than [Ni(NH3)6Cl2].
Reason: In [Ni(en)3Cl2], the geometry of Ni is trigonal bipyramidal.

A
(a)

B
(b)

C
(c)

D
(d)

Question 9
1 / -0

The IUPAC name of the complex [Ni(NH₃)₄] [NiCl₄] is

A
tetrachloronickel(II)-tetraamminenickel(II)

B
tetraamminenickel(II)-tetrachloronickel(II)

C
tetraamminenickel(II)-tetrachloronickelate(II)

D
tetrachloronickel(II)-tetraamminenickelate(II)

Submit Test

Coordination Co...

Question 1

cobalt(II) ion

cobalt(III) ion

chromium(II) ion

chromium(III) ion

Question 2

It is a small molecule

It is a positively charged ion

It is capable of acting as donor of electron pair

It is a compound.

Question 3

primary valency is ionisable

secondary valency is ionisable

primary and secondary valencies are non-ionisable

primary and secondary valencies are ionisable

Question 4

H2O

Cl–

NH2CH2CH2NH2

OH–

Question 5

Nitrito

Carbonyl

Acetate

Oxalate

Question 6

bidentate ligand

tetradentate ligand

pentadentate ligand

hexadentate ligand

Question 7

The complexes [NiCl4]2- and [Ni(CN)4]2- differ in the state of hybridisation of nickel.

The complexes [NiCl4]2- and [Ni(CN)4]2- differ in the magnetic properties.

The complexes [NiCl4]2- and [Ni(CN)4]2- differ in the geometries.

The complexes [NiCl4]2- and [Ni(CN)4]2- differ in the primary valencies of nickel.

Question 8

(a)

(b)

(c)

(d)

Question 9

tetrachloronickel(II)-tetraamminenickel(II)

tetraamminenickel(II)-tetrachloronickel(II)

tetraamminenickel(II)-tetrachloronickelate(II)

tetrachloronickel(II)-tetraamminenickelate(II)

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Question Analysis

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H₂O

Cl^–

NH₂CH₂CH₂NH₂

OH^–

The complexes [NiCl₄]^2- and [Ni(CN)₄]^2- differ in the state of hybridisation of nickel.

The complexes [NiCl₄]^2- and [Ni(CN)₄]^2- differ in the magnetic properties.

The complexes [NiCl₄]^2- and [Ni(CN)₄]^2- differ in the geometries.

The complexes [NiCl₄]^2- and [Ni(CN)₄]^2- differ in the primary valencies of nickel.