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Coordination Chemistry - SS2 Chemistry Past Questions and Answers - page 1

1

Coordination compounds are formed by the coordination of a central metal atom or ion with:

 

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A

Water molecules

 

B

Organic compounds

 

C

Ligands

 

D

Alkali metals

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2

In coordination compounds, ligands coordinate to the central metal atom/ion through:

 

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A

Ionic bonding

 

B

Covalent bonding

 

C

Hydrogen bonding

 

D

Metallic bonding

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3

The coordination number of a metal in a coordination compound represents:

 

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A

The number of ligands coordinated to the metal

 

B

The number of metal atoms present in the compound

 

C

The number of unpaired electrons on the metal

 

D

The charge of the metal ion

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4

The name of a coordination compound is written by:

 

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A

Starting with the name of the ligands and then the name of the central metal atom/ion

 

B

Starting with the name of the central metal atom/ion and then the name of the ligands

 

C

Only using the chemical formula of the compound

 

D

Writing the names of ligands and metal atom/ion in any order

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5

The complex ion [Co(NH3)6]3+ has a coordination number of:

 

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A

3

 

B

4

 

C

5

 

D

6

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6

Ligands that can donate one electron pair to form a coordination bond are called:

 

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A

Monodentate ligands

 

B

Bidentate ligands

 

C

Polydentate ligands

 

D

Chelating ligands

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7

The coordination compound [Fe(CN)6]4- has a charge of:

 

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A

+1

 

B

-1

 

C

+2

 

D

-2

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8

A complex ion that contains both positive and negative charges is called:

 

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A

Cationic complex

 

B

Anionic complex

 

C

Neutral complex

 

D

Chelating complex

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9

The coordination isomerism in coordination compounds refers to:

 

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A

Isomers with different coordination numbers

 

B

Isomers with different ligands but the same central metal atom/ion

 

C

Isomers with different ligands and different central metal atom/ion

 

D

Isomers with different oxidation states of the central metal atom/ion

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10

The bonding between the ligands and the central metal atom/ion in coordination compounds is primarily due to:

 

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A

Ionic bonding

 

B

Metallic bonding

 

C

Covalent bonding

 

D

Van der Waals forces

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