
Concept explainers
(a)
Interpretation:
With four bonding groups and zero nonbonding groups about the central atom, the molecular geometry that is associated has to be given.
Concept Introduction:
Information about the number of bonds and types of bonds can be obtained from Lewis structure but the molecular geometry cannot be obtained. Three dimensional arrangement of atoms in a molecule can be given by molecular geometry. Physical and chemical properties are determined by the molecular geometry of the molecule.
Using VSEPR theory and Lewis structure, the molecular geometry of the molecule that contain less number of atoms can be predicted. VSEPR theory uses the information from Lewis structure of the molecule to predict the molecular geometry of the molecule. Main concept of VSEPR theory is that electron pairs that are present in the valence shell adopt arrangement in a way that minimize the repulsion between like charges.
If the central atom contains two electron pairs, then it has to be far apart means, it has to be on opposite side of the nucleus. This means the angle has to be
If the central atom contains three electron pairs, then it has to be far apart means, it has to be on corner of a triangle. This means the angle has to be
If the central atom contains four electron pairs, then it has to be far apart means, it has to be in a tetrahedral arrangement. This means the angle has to be
The collection of valence electron that is present in localized region about central atom in a molecule is known as VSEPR electron group. This may contain two electrons, four electrons, or six electrons. The electron group that contain four and six electrons repel each other.
Tetrahedral VSEPR electron group:
The four electron pairs can be of three VSEPR electron groups. They are 4 bonding electron groups, 3 bonding and 1 nonbonding electron groups, and 2 bonding and 2 nonbonding electron groups. The molecular geometry that is associated with 4 bonding electron groups is tetrahedral. The molecular geometry that is associated with 3 bonding and 1 nonbonding electron groups is trigonal pyramidal. The molecular geometry that is associated with 2 bonding and 2 nonbonding electron groups is angular.
Trigonal planar VSEPR electron group:
The three electron pairs can be of two VSEPR electron groups. They are 3 bonding electron groups, and 2 bonding and 1 nonbonding electron groups. The molecular geometry that is associated with 3 bonding electron groups is trigonal planar. The molecular geometry that is associated with 2 bonding and 1 nonbonding electron groups is angular.
Linear VSEPR electron group:
The two electron pairs can be of only one VSEPR electron groups. It is only 2 bonding electron groups and the geometry associated with it is linear geometry.
(b)
Interpretation:
With two bonding groups and two nonbonding groups about the central atom, the molecular geometry that is associated has to be given.
Concept Introduction:
Information about the number of bonds and types of bonds can be obtained from Lewis structure but the molecular geometry cannot be obtained. Three dimensional arrangement of atoms in a molecule can be given by molecular geometry. Physical and chemical properties are determined by the molecular geometry of the molecule.
Using VSEPR theory and Lewis structure, the molecular geometry of the molecule that contain less number of atoms can be predicted. VSEPR theory uses the information from Lewis structure of the molecule to predict the molecular geometry of the molecule. Main concept of VSEPR theory is that electron pairs that are present in the valence shell adopt arrangement in a way that minimize the repulsion between like charges.
If the central atom contains two electron pairs, then it has to be far apart means, it has to be on opposite side of the nucleus. This means the angle has to be
If the central atom contains three electron pairs, then it has to be far apart means, it has to be on corner of a triangle. This means the angle has to be
If the central atom contains four electron pairs, then it has to be far apart means, it has to be in a tetrahedral arrangement. This means the angle has to be
The collection of valence electron that is present in localized region about central atom in a molecule is known as VSEPR electron group. This may contain two electrons, four electrons, or six electrons. The electron group that contain four and six electrons repel each other.
Tetrahedral VSEPR electron group:
The four electron pairs can be of three VSEPR electron groups. They are 4 bonding electron groups, 3 bonding and 1 nonbonding electron groups, and 2 bonding and 2 nonbonding electron groups. The molecular geometry that is associated with 4 bonding electron groups is tetrahedral. The molecular geometry that is associated with 3 bonding and 1 nonbonding electron groups is trigonal pyramidal. The molecular geometry that is associated with 2 bonding and 2 nonbonding electron groups is angular.
Trigonal planar VSEPR electron group:
The three electron pairs can be of two VSEPR electron groups. They are 3 bonding electron groups, and 2 bonding and 1 nonbonding electron groups. The molecular geometry that is associated with 3 bonding electron groups is trigonal planar. The molecular geometry that is associated with 2 bonding and 1 nonbonding electron groups is angular.
Linear VSEPR electron group:
The two electron pairs can be of only one VSEPR electron groups. It is only 2 bonding electron groups and the geometry associated with it is linear geometry.
(c)
Interpretation:
With three bonding groups and zero nonbonding groups about the central atom, the molecular geometry that is associated has to be given.
Concept Introduction:
Information about the number of bonds and types of bonds can be obtained from Lewis structure but the molecular geometry cannot be obtained. Three dimensional arrangement of atoms in a molecule can be given by molecular geometry. Physical and chemical properties are determined by the molecular geometry of the molecule.
Using VSEPR theory and Lewis structure, the molecular geometry of the molecule that contain less number of atoms can be predicted. VSEPR theory uses the information from Lewis structure of the molecule to predict the molecular geometry of the molecule. Main concept of VSEPR theory is that electron pairs that are present in the valence shell adopt arrangement in a way that minimize the repulsion between like charges.
If the central atom contains two electron pairs, then it has to be far apart means, it has to be on opposite side of the nucleus. This means the angle has to be
If the central atom contains three electron pairs, then it has to be far apart means, it has to be on corner of a triangle. This means the angle has to be
If the central atom contains four electron pairs, then it has to be far apart means, it has to be in a tetrahedral arrangement. This means the angle has to be
The collection of valence electron that is present in localized region about central atom in a molecule is known as VSEPR electron group. This may contain two electrons, four electrons, or six electrons. The electron group that contain four and six electrons repel each other.
Tetrahedral VSEPR electron group:
The four electron pairs can be of three VSEPR electron groups. They are 4 bonding electron groups, 3 bonding and 1 nonbonding electron groups, and 2 bonding and 2 nonbonding electron groups. The molecular geometry that is associated with 4 bonding electron groups is tetrahedral. The molecular geometry that is associated with 3 bonding and 1 nonbonding electron groups is trigonal pyramidal. The molecular geometry that is associated with 2 bonding and 2 nonbonding electron groups is angular.
Trigonal planar VSEPR electron group:
The three electron pairs can be of two VSEPR electron groups. They are 3 bonding electron groups, and 2 bonding and 1 nonbonding electron groups. The molecular geometry that is associated with 3 bonding electron groups is trigonal planar. The molecular geometry that is associated with 2 bonding and 1 nonbonding electron groups is angular.
Linear VSEPR electron group:
The two electron pairs can be of only one VSEPR electron groups. It is only 2 bonding electron groups and the geometry associated with it is linear geometry.

Want to see the full answer?
Check out a sample textbook solution
Chapter 5 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Synthesize 2-Ethyl-3-methyloxirane from dimethyl(propyl)sulfonium iodide using the necessary organic or inorganic reagents. Draw the structures of the compounds.arrow_forwardSynthesize 2-Hydroxy-2-phenylacetonitrile from phenylmethanol using the necessary organic or inorganic reagents. Draw the structures of the compounds.arrow_forwardSynthesize N-Methylcyclohexylamine from cyclohexanol using the necessary organic or inorganic reagents. Draw the structures of the compounds.arrow_forward
- Synthesize N-Methylcyclohexylamine from cyclohexanol using the necessary organic or inorganic reagents. Draw the structures of the compounds.arrow_forwardIf possible, please provide the formula of the compound 3,3-dimethylbut-2-enal.arrow_forwardSynthesize 1,4-dibromobenzene from acetanilide (N-phenylacetamide) using the necessary organic or inorganic reagents. Draw the structures of the compounds.arrow_forward
- Indicate the products obtained by mixing (3-oxo-3-phenylpropyl)triphenylphosphonium bromide with sodium hydride.arrow_forwardWe mix N-ethyl-2-hexanamine with excess methyl iodide and followed by heating with aqueous Ag2O. Indicate the major products obtained.arrow_forwardIndicate the products obtained by mixing acetophenone with iodine and NaOH.arrow_forward
- Indicate the products obtained by mixing 2-Propanone and ethyllithium and performing a subsequent acid hydrolysis.arrow_forwardIndicate the products obtained if (E)-2-butenal and 3-oxo-butanenitrile are mixed with sodium ethoxide in ethanol.arrow_forwardQuestion 3 (4 points), Draw a full arrow-pushing mechanism for the following reaction Please draw all structures clearly. Note that this intramolecular cyclization is analogous to the mechanism for halohydrin formation. COH Br + HBr Brarrow_forward
- Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningIntroductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage Learning
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning




