Problem 15b
Page 422
Section: Problems by Topic
Chapter 10: Chemical Bonding II: Molecular Shapes, Valence Bond Theory,and Molecular Orbital Theory
Given information
Here the given molecule is methoxymethane:
Step-by-step explanation
Here the molecule consists of 4 bonding electron pairs around the central 
atom. The bonding pairs of electrons around 
atom is found to be 
and it also has lone pairs.
The structure of is,
According to VSEPR theory the molecule that has four electron groups, that is four bonding pairs and zero lone pair has tetrahedral molecular geometry.
Therefore, the interior carbon 
has tetrahedral molecular geometry.
According to VSEPR theory, the molecule that has four electron groups, that is two bonding pairs and two lone pairs has bent molecular geometry.
Therefore, the interior oxygen has bent molecular geometry.
The two carbons are equivalent as they both are bonded to the same type of atoms.
From the figure, it is concluded that the interior carbons have four electron groups, that is four bond pairs.
Therefore, interior carbon has tetrahedral molecular geometry.
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Principles of Chemistry Molecular Approach
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