Please explain. **Title: Isomer Possibilities for Coordination Complexes****Problem Statement:**How many isomers are possible for the species \([Co(en)_2(Cl)_2]^+\), \(Cr(NH_3)_3(OH)_3\), and tetrahedral \([ZnCl_2Br_2]^{2-}\) respectively? *(1 isomer means there is only one version of this molecule)***Options:**A. 2, 2, 2 B. 3, 2, 1 C. 3, 4, 2 D. 2, 4, 1**Explanation:**The question is asking about the number of isomers possible for three different coordination complexes. An isomer refers to a molecule with the same chemical formula but different structural forms. Understanding the different types of isomers, such as structural isomers, geometrical isomers, and optical isomers, is essential in determining the number of isomers for each complex.### Coordination Complexes and Their Isomers:1. **\[Co(en)_2(Cl)_2]^+\**: - Here, \(en\) stands for ethylenediamine, a bidentate ligand, and \(Co\) is the central metal ion. - The complex can exhibit geometrical isomerism because there are different possible arrangements of the ligands around the metal ion. - It can form cis and trans isomers, indicating 2 possible isomers.2. **\(Cr(NH_3)_3(OH)_3\)**: - This complex consists of three ammonia (NH3) ligands and three hydroxide (OH) ligands arranged around a chromium (Cr) ion. - Considering different spatial arrangements, the complex can display geometric isomerism with facial (fac) and meridional (mer) isomers, hence 2 isomers. - Since there are chiral centers, optical isomerism is also possible. - It can have a total of 4 isomers: 2 geometrical (fac and mer) and 2 optical (for fac, assuming enantiomers).3. **\[ZnCl_2Br_2]^{2-}\**: - This tetrahedral complex involves zinc (Zn) surrounded by two chloride (Cl) ions and two bromide (Br) ions.

Coordination complexes are formed by joining the central metal ion with the negatively charged…

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Chemistry

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ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter21: Transition Metals And Coordination Chemistry

Section: Chapter Questions

Problem 2RQ

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Concept explainers

Polymerization Kinetics

Polymerization is a chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that diverge in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes. Polymerization is generally classified into step-growth and chain polymerization. Polymers are categorized into linear polymer and cross-linked polymers that are produced either by condensation or additional polymerization.

Question

Please explain.

**Title: Isomer Possibilities for Coordination Complexes**

**Problem Statement:**
How many isomers are possible for the species \([Co(en)_2(Cl)_2]^+\), \(Cr(NH_3)_3(OH)_3\), and tetrahedral \([ZnCl_2Br_2]^{2-}\) respectively? *(1 isomer means there is only one version of this molecule)*

**Options:**
A. 2, 2, 2
B. 3, 2, 1
C. 3, 4, 2
D. 2, 4, 1

**Explanation:**

The question is asking about the number of isomers possible for three different coordination complexes. An isomer refers to a molecule with the same chemical formula but different structural forms. Understanding the different types of isomers, such as structural isomers, geometrical isomers, and optical isomers, is essential in determining the number of isomers for each complex.

### Coordination Complexes and Their Isomers:

1. **\[Co(en)_2(Cl)_2]^+\**:
- Here, \(en\) stands for ethylenediamine, a bidentate ligand, and \(Co\) is the central metal ion.
- The complex can exhibit geometrical isomerism because there are different possible arrangements of the ligands around the metal ion.
- It can form cis and trans isomers, indicating 2 possible isomers.

2. **\(Cr(NH_3)_3(OH)_3\)**:
- This complex consists of three ammonia (NH3) ligands and three hydroxide (OH) ligands arranged around a chromium (Cr) ion.
- Considering different spatial arrangements, the complex can display geometric isomerism with facial (fac) and meridional (mer) isomers, hence 2 isomers.
- Since there are chiral centers, optical isomerism is also possible.
- It can have a total of 4 isomers: 2 geometrical (fac and mer) and 2 optical (for fac, assuming enantiomers).

3. **\[ZnCl_2Br_2]^{2-}\**:
- This tetrahedral complex involves zinc (Zn) surrounded by two chloride (Cl) ions and two bromide (Br) ions.

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