Question 1

Give the approximate bond angle for a molecule with a linear shape.

Accepted Answer

A)  109.5° 
B)  180° 
C)  120° 
D)  105° 
E)  60° 
A)  109.5° 
B)  180° 
C)  120° 
D)  105° 
E)  60° B

Question 2

What is the molecular geometry of BrF4 -?

Accepted Answer

A)  seesaw 
B)  square planar 
C)  square pyramidal 
D)  pyramidal 
E)  trigonal bipyramidal 
A)  seesaw 
B)  square planar 
C)  square pyramidal 
D)  pyramidal 
E)  trigonal bipyramidal B

Question 3

How many of the following molecules have sp3d hybridization on the central atom? CCl4 BrF5 AsF5 BrF3

Accepted Answer

A)  2 
B)  0 
C)  4 
D)  1 
E)  3 
A)  2 
B)  0 
C)  4 
D)  1 
E)  3 A

Question 4

Determine the molecular geometry about each interior atom in the following structure.Sketch the three-dimensional structure and label the interior atoms with the corresponding molecular geometry.
CH2CHCCCH3

Accepted Answer

The sketch should show all of the approp

Question 5

Using the VSEPR model,the molecular geometry of the central atom in NH4+ is

Accepted Answer

A)  linear. 
B)  trigonal planar. 
C)  tetrahedral. 
D)  bent. 
E)  trigonal pyramidal. 
A)  linear. 
B)  trigonal planar. 
C)  tetrahedral. 
D)  bent. 
E)  trigonal pyramidal.

Question 6

Place the following in order of decreasing X-A-X bond angle,where A represents the central atom and X represents the outer atoms in each molecule. N2O NCl3 NO2⁻

Accepted Answer

A)  NCl3 > NO2⁻ > N2O 
B)  NO2⁻ > N2O > NCl3 
C)  N2O > NO2⁻ > NCl3 
D)  NCl3 > N2O > NO2⁻ 
E)  N2O > NCl3 > NO2⁻ 
A)  NCl3 > NO2⁻ > N2O 
B)  NO2⁻ > N2O > NCl3 
C)  N2O > NO2⁻ > NCl3 
D)  NCl3 > N2O > NO2⁻ 
E)  N2O > NCl3 > NO2⁻

Question 7

Using the VSEPR model,the molecular geometry of the central atom in ClO3- is

Accepted Answer

A)  linear. 
B)  trigonal planar. 
C)  tetrahedral. 
D)  bent. 
E)  trigonal pyramidal. 
A)  linear. 
B)  trigonal planar. 
C)  tetrahedral. 
D)  bent. 
E)  trigonal pyramidal.

Question 8

Match between columns
                        Premises: CHS1U1B12S1U1B0FS1U1B12S1U1B0
BeFS1U1B12S1U1B0
spS1U1P13S1S1P0d
spS1U1P13S1S1P0dS1U1P12S1S1P0
spS1U1P13S1S1P0
BClS1U1B13S1U1B0
SFS1U1B14S1U1B0
sp
XeClS1U1B14S1U1B0
spS1U1P12S1S1P0

Accepted Answer

The Answer of see-saw molecular geometry and trigonal bipyramidal and is...

Question 9

How many of the following molecules have sp2 hybridization on the central atom? HCN SO2 OCl2 XeCl2

Accepted Answer

A)  4 
B)  3 
C)  2 
D)  1 
E)  0 
A)  4 
B)  3 
C)  2 
D)  1 
E)  0

Question 10

Give the hybridization for the Br in BrF5.

Accepted Answer

A)  sp3d2 
B)  sp3d 
C)  sp3 
D)  sp2 
E)  sp 
A)  sp3d2 
B)  sp3d 
C)  sp3 
D)  sp2 
E)  sp

Question 11

Determine the electron geometry (eg)and molecular geometry (mg)of CF3+1.

Accepted Answer

A)  eg = tetrahedral, mg = tetrahedral 
B)  eg = trigonal pyramidal, mg = trigonal pyramidal 
C)  eg = bent, mg = bent 
D)  eg = trigonal planar, mg = trigonal planar 
E)  eg = tetrahedral, mg = trigonal planar 
A)  eg = tetrahedral, mg = tetrahedral 
B)  eg = trigonal pyramidal, mg = trigonal pyramidal 
C)  eg = bent, mg = bent 
D)  eg = trigonal planar, mg = trigonal planar 
E)  eg = tetrahedral, mg = trigonal planar

Question 12

Use molecular orbital theory to determine whether He22⁺ or He2⁺ is more stable.Draw the molecular orbital diagram for each and explain your answer.

Accepted Answer

The MO diagram should show He₂²⁺ with 2 el

Question 13

If an oil tanker leaks oil in the ocean,where does the oil go?

Accepted Answer

A)  The oil floats on the seawater; water is polar and oil is nonpolar. 
B)  The oil mixes with the water. 
C)  The oil sinks below the seawater; water is nonpolar and oil is polar. 
D)  The oil floats on the seawater; water is nonpolar and oil is polar. 
E)  The oil sinks below the seawater; water is polar and oil is nonpolar. 
A)  The oil floats on the seawater; water is polar and oil is nonpolar. 
B)  The oil mixes with the water. 
C)  The oil sinks below the seawater; water is nonpolar and oil is polar. 
D)  The oil floats on the seawater; water is nonpolar and oil is polar. 
E)  The oil sinks below the seawater; water is polar and oil is nonpolar.

Question 14

Choose the compound below that contains at least one polar covalent bond,but is nonpolar.

Accepted Answer

A)  GeH2Br2 
B)  SBr2 
C)  AsBr5 
D)  CBr2Cl2 
E)  All of the above are nonpolar and contain a polar covalent bond. 
A)  GeH2Br2 
B)  SBr2 
C)  AsBr5 
D)  CBr2Cl2 
E)  All of the above are nonpolar and contain a polar covalent bond.

Question 15

Determine the electron geometry (eg)and molecular geometry (mg)of BH3.

Accepted Answer

A)  eg = trigonal planar, mg = trigonal planar 
B)  eg = tetrahedral, mg = trigonal planar 
C)  eg = tetrahedral, mg = trigonal pyramidal 
D)  eg = trigonal planar, mg = tetrahedral 
E)  eg = trigonal bipyramidal, mg = trigonal bipyramidal 
A)  eg = trigonal planar, mg = trigonal planar 
B)  eg = tetrahedral, mg = trigonal planar 
C)  eg = tetrahedral, mg = trigonal pyramidal 
D)  eg = trigonal planar, mg = tetrahedral 
E)  eg = trigonal bipyramidal, mg = trigonal bipyramidal

Question 16

Identify the number of electron groups around a molecule with sp hybridization.

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 17

Give the approximate bond angle for a molecule with a tetrahedral shape.

Accepted Answer

A)  109.5° 
B)  200° 
C)  120° 
D)  107° 
E)  45° 
A)  109.5° 
B)  200° 
C)  120° 
D)  107° 
E)  45°

Question 18

Use the molecular orbital diagram shown to determine which of the following is most stable.

Accepted Answer

A)  C22⁺ 
B)  N22⁺ 
C)  B2 
D)  C22⁻ 
E)  B22⁺ 
A)  C22⁺ 
B)  N22⁺ 
C)  B2 
D)  C22⁻ 
E)  B22⁺

Question 19

The VSEPR model predicts the H-N-H bond angle in NH2- to be

Accepted Answer

A)  60°. 
B)  90°. 
C)  less than 109.5° but greater than 90°. 
D)  109.5°. 
A)  60°. 
B)  90°. 
C)  less than 109.5° but greater than 90°. 
D)  109.5°.

Question 20

Determine the hybridization about each interior atom in the following structure.Sketch the three-dimensional structure and label the interior atoms with their corresponding hybridization.
CH2CHCCCH3

Accepted Answer

The sketch should show all of the approp

Exam 10: Chemical Bonding Ii: Molecular Shapes,valence Bond Theory,

Give the approximate bond angle for a molecule with a linear shape.

What is the molecular geometry of BrF4 -?

How many of the following molecules have sp3d hybridization on the central atom? CCl4 BrF5 AsF5 BrF3

Determine the molecular geometry about each interior atom in the following structure.Sketch the three-dimensional structure and label the interior atoms with the corresponding molecular geometry. CH2CHCCCH3

Using the VSEPR model,the molecular geometry of the central atom in NH4+ is

Place the following in order of decreasing X-A-X bond angle,where A represents the central atom and X represents the outer atoms in each molecule. N2O NCl3 NO2⁻

Using the VSEPR model,the molecular geometry of the central atom in ClO3- is

How many of the following molecules have sp2 hybridization on the central atom? HCN SO2 OCl2 XeCl2

Give the hybridization for the Br in BrF5.

Determine the electron geometry (eg)and molecular geometry (mg)of CF3+1.

Use molecular orbital theory to determine whether He22⁺ or He2⁺ is more stable.Draw the molecular orbital diagram for each and explain your answer.

If an oil tanker leaks oil in the ocean,where does the oil go?

Choose the compound below that contains at least one polar covalent bond,but is nonpolar.

Determine the electron geometry (eg)and molecular geometry (mg)of BH3.

Identify the number of electron groups around a molecule with sp hybridization.

Give the approximate bond angle for a molecule with a tetrahedral shape.

Use the molecular orbital diagram shown to determine which of the following is most stable.

The VSEPR model predicts the H-N-H bond angle in NH2- to be

Determine the hybridization about each interior atom in the following structure.Sketch the three-dimensional structure and label the interior atoms with their corresponding hybridization. CH2CHCCCH3

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Filters

What is the molecular geometry of BrF₄ ^-?

How many of the following molecules have sp³d hybridization on the central atom? CCl₄ BrF₅ AsF₅ BrF₃

Determine the molecular geometry about each interior atom in the following structure.Sketch the three-dimensional structure and label the interior atoms with the corresponding molecular geometry. CH₂CHCCCH₃

Using the VSEPR model,the molecular geometry of the central atom in NH₄⁺ is

Place the following in order of decreasing X-A-X bond angle,where A represents the central atom and X represents the outer atoms in each molecule. N₂O NCl₃ NO₂⁻

Using the VSEPR model,the molecular geometry of the central atom in ClO₃^- is

How many of the following molecules have sp² hybridization on the central atom? HCN SO₂ OCl₂ XeCl₂

Give the hybridization for the Br in BrF₅.

Determine the electron geometry (eg)and molecular geometry (mg)of CF₃⁺¹.

Use molecular orbital theory to determine whether He₂²⁺ or He₂⁺ is more stable.Draw the molecular orbital diagram for each and explain your answer.

Determine the electron geometry (eg)and molecular geometry (mg)of BH₃.

The VSEPR model predicts the H-N-H bond angle in NH₂^-to be

Determine the hybridization about each interior atom in the following structure.Sketch the three-dimensional structure and label the interior atoms with their corresponding hybridization. CH₂CHCCCH₃