Organic Chemistry
Organic Chemistry
2nd Edition
ISBN: 9781118452288
Author: David R. Klein
Publisher: WILEY
Question
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Chapter 1.10, Problem 25PTS

(a)

Interpretation Introduction

Interpretation: The geometry of the central atoms has to be predicted for the given set of compounds.

Concept Introduction:  According to VSEPR (Valence Shell Electron Pair Repulsion) theory, each molecule gets a unique structure. That structure is explained by considering steric number of that molecule.

The steric number is the combination of both number of σ-bonds and number of lone pairs involved in a particular molecule.

σ-bonds are formed by the mutual sharing of electrons between the two atoms.  As a result, bond between two atoms is formed.  This type of bond is called covalent bond.  In this process, bonding electron pairs are involved.

Non-bonding electrons are not involved in the bond formation.  They are called lone pairs.

The geometry of the central atom will be determined by counting the steric number followed by the hybridization state of that central atom and finally electronic arrangement of atoms in space.

If the steric number is 4, the central atom has sp3 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be tetrahedral.

If the steric number is 3, the central atom has sp2 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be trigonal planar.

If the steric number is 2, the central atom has sp hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be linear.

To find: The geometry for the central nitrogen atom in NH3

(b)

Interpretation Introduction

Interpretation: The geometry of the central atoms has to be predicted for the given set of compounds.

Concept Introduction:  According to VSEPR (Valence Shell Electron Pair Repulsion) theory, each molecule gets a unique structure. That structure is explained by considering steric number of that molecule.

The steric number is the combination of both number of σ-bonds and number of lone pairs involved in a particular molecule.

σ-bonds are formed by the mutual sharing of electrons between the two atoms.  As a result, bond between two atoms is formed.  This type of bond is called covalent bond.  In this process, bonding electron pairs are involved.

Non-bonding electrons are not involved in the bond formation.  They are called lone pairs.

The geometry of the central atom will be determined by counting the steric number followed by the hybridization state of that central atom and finally electronic arrangement of atoms in space.

If the steric number is 4, the central atom has sp3 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be tetrahedral.

If the steric number is 3, the central atom has sp2 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be trigonal planar.

If the steric number is 2, the central atom has sp hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be linear.

To find: The geometry for the central oxygen atom in H3O+

(c)

Interpretation Introduction

Interpretation: The geometry of the central atoms has to be predicted for the given set of compounds.

Concept Introduction:  According to VSEPR (Valence Shell Electron Pair Repulsion) theory, each molecule gets a unique structure. That structure is explained by considering steric number of that molecule.

The steric number is the combination of both number of σ-bonds and number of lone pairs involved in a particular molecule.

σ-bonds are formed by the mutual sharing of electrons between the two atoms.  As a result, bond between two atoms is formed.  This type of bond is called covalent bond.  In this process, bonding electron pairs are involved.

Non-bonding electrons are not involved in the bond formation.  They are called lone pairs.

The geometry of the central atom will be determined by counting the steric number followed by the hybridization state of that central atom and finally electronic arrangement of atoms in space.

If the steric number is 4, the central atom has sp3 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be tetrahedral.

If the steric number is 3, the central atom has sp2 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be trigonal planar.

If the steric number is 2, the central atom has sp hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be linear.

To find: The geometry for the central boron atom in BH4

(d)

Interpretation Introduction

Interpretation: The geometry of the central atoms has to be predicted for the given set of compounds.

Concept Introduction:  According to VSEPR (Valence Shell Electron Pair Repulsion) theory, each molecule gets a unique structure. That structure is explained by considering steric number of that molecule.

The steric number is the combination of both number of σ-bonds and number of lone pairs involved in a particular molecule.

σ-bonds are formed by the mutual sharing of electrons between the two atoms.  As a result, bond between two atoms is formed.  This type of bond is called covalent bond.  In this process, bonding electron pairs are involved.

Non-bonding electrons are not involved in the bond formation.  They are called lone pairs.

The geometry of the central atom will be determined by counting the steric number followed by the hybridization state of that central atom and finally electronic arrangement of atoms in space.

If the steric number is 4, the central atom has sp3 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be tetrahedral.

If the steric number is 3, the central atom has sp2 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be trigonal planar.

If the steric number is 2, the central atom has sp hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be linear.

To find: The geometry for the central boron atom in BCl3

(e)

Interpretation Introduction

Interpretation: The geometry of the central atoms has to be predicted for the given set of compounds.

Concept Introduction:  According to VSEPR (Valence Shell Electron Pair Repulsion) theory, each molecule gets a unique structure. That structure is explained by considering steric number of that molecule.

The steric number is the combination of both number of σ-bonds and number of lone pairs involved in a particular molecule.

σ-bonds are formed by the mutual sharing of electrons between the two atoms.  As a result, bond between two atoms is formed.  This type of bond is called covalent bond.  In this process, bonding electron pairs are involved.

Non-bonding electrons are not involved in the bond formation.  They are called lone pairs.

The geometry of the central atom will be determined by counting the steric number followed by the hybridization state of that central atom and finally electronic arrangement of atoms in space.

If the steric number is 4, the central atom has sp3 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be tetrahedral.

If the steric number is 3, the central atom has sp2 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be trigonal planar.

If the steric number is 2, the central atom has sp hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be linear.

To find: The geometry for the central boron atom in BCl4

(f)

Interpretation Introduction

Interpretation: The geometry of the central atoms has to be predicted for the given set of compounds.

Concept Introduction:  According to VSEPR (Valence Shell Electron Pair Repulsion) theory, each molecule gets a unique structure. That structure is explained by considering steric number of that molecule.

The steric number is the combination of both number of σ-bonds and number of lone pairs involved in a particular molecule.

σ-bonds are formed by the mutual sharing of electrons between the two atoms.  As a result, bond between two atoms is formed.  This type of bond is called covalent bond.  In this process, bonding electron pairs are involved.

Non-bonding electrons are not involved in the bond formation.  They are called lone pairs.

The geometry of the central atom will be determined by counting the steric number followed by the hybridization state of that central atom and finally electronic arrangement of atoms in space.

If the steric number is 4, the central atom has sp3 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be tetrahedral.

If the steric number is 3, the central atom has sp2 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be trigonal planar.

If the steric number is 2, the central atom has sp hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be linear.

To find: The geometry for the central carbon atom in CCl4

(g)

Interpretation Introduction

Interpretation: The geometry of the central atoms has to be predicted for the given set of compounds.

Concept Introduction:  According to VSEPR (Valence Shell Electron Pair Repulsion) theory, each molecule gets a unique structure. That structure is explained by considering steric number of that molecule.

The steric number is the combination of both number of σ-bonds and number of lone pairs involved in a particular molecule.

σ-bonds are formed by the mutual sharing of electrons between the two atoms.  As a result, bond between two atoms is formed.  This type of bond is called covalent bond.  In this process, bonding electron pairs are involved.

Non-bonding electrons are not involved in the bond formation.  They are called lone pairs.

The geometry of the central atom will be determined by counting the steric number followed by the hybridization state of that central atom and finally electronic arrangement of atoms in space.

If the steric number is 4, the central atom has sp3 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be tetrahedral.

If the steric number is 3, the central atom has sp2 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be trigonal planar.

If the steric number is 2, the central atom has sp hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be linear.

To find: The geometry for the central carbon atom in CHCl3

(h)

Interpretation Introduction

Interpretation: The geometry of the central atoms has to be predicted for the given set of compounds.

Concept Introduction:  According to VSEPR (Valence Shell Electron Pair Repulsion) theory, each molecule gets a unique structure. That structure is explained by considering steric number of that molecule.

The steric number is the combination of both number of σ-bonds and number of lone pairs involved in a particular molecule.

σ-bonds are formed by the mutual sharing of electrons between the two atoms.  As a result, bond between two atoms is formed.  This type of bond is called covalent bond.  In this process, bonding electron pairs are involved.

Non-bonding electrons are not involved in the bond formation.  They are called lone pairs.

The geometry of the central atom will be determined by counting the steric number followed by the hybridization state of that central atom and finally electronic arrangement of atoms in space.

If the steric number is 4, the central atom has sp3 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be tetrahedral.

If the steric number is 3, the central atom has sp2 hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be trigonal planar.

If the steric number is 2, the central atom has sp hybridized and the electronic arrangement of atoms in space (i.e. geometry) will be linear.

To find: The geometry for the central carbon atom in CH2Cl2

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Chapter 1 Solutions

Organic Chemistry

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