Molecular Geometry MC Review

The basis of the VSEPR model of molecular bonding is _____.

• regions of electron density on an atom will organize themselves to maximize s-character

• regions of electron density in the valence shell of an atom will arrange themselves to maximize overlap

• atomic orbitals of the bonding atoms must overlap for a bond to form

• electron domains in the valence shell of an atom will arrange themselves to minimize repulsions

According to VSEPR theory, if there are three electron domains in the valence shell of an atom, they will be arranged in a(n) _____ geometry.

• octahedral

• linear

• tetrahedral

• trigonal planar

According to VSEPR theory, if there are five electron domains in the valence shell of an atom, they will be arranged in a(n) _____ geometry.

• trigonal bipyramidal

• linear

• octahedral

• trigonal planar

According to VSEPR theory, if there are four electron domains in the valence shell of an atom, they will be arranged in a(n) _____ geometry.

• octahedral

• linear

• tetrahedral

• trigonal planar

In the valence shell of an atom there are six electron domains. They will be arranged in a(an) _____ geometry.

• hexagonal

• tetrahedral

• octahedral

• see-saw

Using the VSEPR model, the electron-domain geometry of the central atom in BF₃ is _____ while the molecular geometry would be described as _____.

• linear; bent

• trigonal planar; bent

• trigonal planar; trigonal planar

• trigonal bipyramidal; bent

The electron-domain geometry of the central atom in OF₂ is _____ while the molecular geometry would be described as _____.

• linear; bent

• trigonal planar; bent

• tetrahedral; bent

• trigonal bipyramidal; linear

The electron-domain geometry of the central atom in NO₂⁻ is _____, while the molecular geometry would be described as _____.

• linear; linear

• trigonal planar; bent

• tetrahedral; triangular pyramidal

• trigonal bipyramidal; T-shaped

Using the VSEPR model, the electron-domain geometry of the central atom in BrF₄⁻ is _____ while the molecular geometry would be described as _____.

• octahedral; square planar

• trigonal planar; bent

• tetrahedral; bent

• trigonal bipyramidal; square planar

Which of the following would have an electron-domain geometry that is tetrahedral in nature?

i. CH₄

ii. PH₃

iii. XeF₄

• i only

• ii only

• iii only

• i and ii only