Coordination Compounds Remaining Part

Question 1

What is optical isomerism in coordination compounds?

Answer 1

Optical isomerism is a type of stereoisomerism where compounds exist in two non-superimposable mirror images called enantiomers.

Question 2

True or False: Optical isomers have identical physical properties.

Answer 2

False: Optical isomers have different optical activities and may exhibit different physical properties.

Question 3

Fill in the blank: Optical isomers are also known as ______.

Answer 3

enantiomers

Question 4

What is the significance of chiral centers in coordination compounds?

Answer 4

Chiral centers in coordination compounds lead to the formation of optical isomers, as they create non-superimposable mirror images.

Question 5

Which of the following complexes can exhibit optical isomerism? A) [Co(NH3)6]3+ B) [NiCl2(H2O)2] C) [CuCl2(NH3)2] D) [Mn(C2O4)3]3-

Answer 5

[Mn(C2O4)3]3- can exhibit optical isomerism.

Question 6

What role does symmetry play in determining optical isomerism?

Answer 6

Symmetry can prevent optical isomerism; if a complex has a plane of symmetry, it cannot have optical isomers.

Question 7

Short answer: Name a method used to distinguish between optical isomers.

Answer 7

Polarimetry is used to distinguish between optical isomers.

Question 8

True or False: All coordination compounds are optically active.

Answer 8

False: Only those with chiral centers or asymmetric arrangements are optically active.

Question 9

What is the relationship between optical isomerism and the Cahn-Ingold-Prelog priority rules?

Answer 9

The Cahn-Ingold-Prelog priority rules help assign R/S configuration to chiral centers, aiding in the identification of optical isomers.

Question 10

Multiple choice: Which of the following ligands does not lead to optical isomerism when coordinated to a metal center? A) NH3 B) H2O C) Cl- D) en

Answer 10

C) Cl- does not lead to optical isomerism when coordinated to a metal center.

Question 11

What is isomerism in coordination compounds?

Answer 11

Isomerism in coordination compounds refers to the phenomenon where compounds have the same molecular formula but different arrangements of atoms.

Question 12

True or False: Isomers can have different physical and chemical properties.

Answer 12

True

Question 13

What are the two main types of isomerism in coordination compounds?

Answer 13

The two main types of isomerism are structural isomerism and stereoisomerism.

Question 14

Fill in the blank: Structural isomerism involves differences in the ________ of the coordination compounds.

Answer 14

connectivity of atoms

Question 15

What is coordination isomerism?

Answer 15

Coordination isomerism occurs when the composition of the coordination sphere differs between isomers.

Question 16

List one example of structural isomerism.

Answer 16

Linkage isomerism is an example of structural isomerism.

Question 17

What is linkage isomerism?

Answer 17

Linkage isomerism occurs when a ligand can coordinate to the metal ion through different atoms.

Question 18

True or False: Stereoisomerism includes geometric isomerism and optical isomerism.

Answer 18

True

Question 19

Define geometric isomerism.

Answer 19

Geometric isomerism occurs due to different spatial arrangements of ligands around the central metal atom.

Question 20

What is optical isomerism?

Answer 20

Optical isomerism arises when isomers are non-superimposable mirror images of each other.

Question 21

Provide an example of a coordination compound that exhibits geometric isomerism.

Answer 21

Cisplatin is an example that exhibits geometric isomerism.

Question 22

What is the significance of the cis and trans isomers in coordination compounds?

Answer 22

Cis and trans isomers can have vastly different biological activities and reactivities.

Question 23

Fill in the blank: In optical isomerism, the isomers are called ________.

Answer 23

enantiomers

Question 24

What role does chirality play in optical isomerism?

Answer 24

Chirality is the property that allows molecules to exist as enantiomers, which are mirror images of each other.

Question 25

True or False: All coordination compounds exhibit isomerism.

Answer 25

False

Question 26

What is fac-mer isomerism?

Answer 26

Fac-mer isomerism occurs in octahedral complexes where three identical ligands occupy adjacent (fac) or opposite (mer) positions.

Question 27

Name one factor that influences isomerism in coordination compounds.

Answer 27

The nature of the ligands can influence isomerism.

Question 28

Fill in the blank: The coordination number of a metal ion can affect the ________ of the coordination compound.

Answer 28

type of isomerism

Question 29

What is the coordination number?

Answer 29

The coordination number is the number of ligand donor atoms that are bonded to the central metal atom.

Question 30

Give an example of a complex with a coordination number of 4.

Answer 30

Tetraamminecopper(II) is an example of a complex with a coordination number of 4.

Question 31

True or False: All ligands can form isomers.

Answer 31

False

Question 32

What is a bidentate ligand?

Answer 32

A bidentate ligand is a ligand that can form two bonds to a central metal atom.

Question 33

True or False: Chelation can lead to the formation of more stable complexes.

Answer 33

True

Question 34

What is a chelate?

Answer 34

A chelate is a complex formed when a bidentate or polydentate ligand binds to a metal ion.

Question 35

Fill in the blank: Coordination compounds with a high degree of ________ tend to exhibit more diverse isomerism.

Answer 35

denticity

Question 36

What is the relationship between isomerism and the reactivity of coordination compounds?

Answer 36

Isomerism can significantly affect the reactivity and interaction of coordination compounds with other molecules.