Question 1

Using the VSEPR model, the electron-domain geometry of the central atom in SCl4 is ________.

Accepted Answer

A)   linear
B)   trigonal planar
C)   tetrahedral
D)   trigonal bipyramidal
E)   octahedral

Question 2

Use the molecular orbital diagram shown to determine which of the following is paramagnetic. 22⁻ B)  Ne22⁺ C)  O22⁺ D)  F22⁺ E)  None of the above is paramagnetic." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   O22⁻
B)   Ne22⁺
C)   O22⁺
D)   F22⁺
E)   None of the above is paramagnetic.

Question 3

How many of the following molecules have sp3 hybridization on the central atom? XeCl4 CH4 SF4 C2H2

Accepted Answer

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

Question 4

Determine the molecular geometry (mg)  of the bolded and underlined atom CH3CH2NH2.

Accepted Answer

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

Question 5

Which of the following statements is FALSE?

Accepted Answer

A)   VSEPR theory is based on the simple idea that electron groups repel each other.
B)   The preferred geometry of a molecule is the one in which the electron groups have minimum separation.
C)   CO2 has linear electron and molecular geometry.
D)   BF3 has trigonal planar electron and molecular geometry.

Question 6

Give the approximate bond angle for a molecule with octahedral electron geometry and square pyramidal molecular geometry.

Accepted Answer

A)   90°
B)   180°
C)   >120°
D)   
E)   >90°

Question 7

How many of the following molecules are polar? 
XeCl2 COF2 PCl4F SF6

Accepted Answer

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

Question 8

Determine the electron geometry (eg)  and molecular geometry (mg)  of NCl3.

Accepted Answer

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

Question 9

Determine the electron geometry (eg) , molecular geometry (mg) , and polarity of SF6.

Accepted Answer

A)   eg = trigonal bipyramidal, mg = trigonal bipyramidal, nonpolar
B)   eg = tetrahedral, mg = tetrahedral, polar
C)   eg = trigonal bipyramidal, mg = seesaw, polar
D)   eg = octahedral, mg = trigonal bipyramidal, nonpolar
E)   eg = octahedral, mg = octahedral, nonpolar

Question 10

Match the following.
-CH2F2

Accepted Answer

A)  sp hybridized central atom
B)  octahedral electron geometry
C)  polar, but contains no polar bonds
D)  sp2 hybridized central atom
E)  linearF) nonpolar, but contains a polar covalent bondG) tetrahedralH) trigonal planarI) octahedralJ) polarK) trigonal bipyramidalL) seesaw molecular geometry

Question 11

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...

Question 12

Determine the electron geometry (eg)  and molecular geometry (mg)  of CO2.

Accepted Answer

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

Question 13

Determine the electron geometry (eg)  and molecular geometry (mg)  of BrF5.

Accepted Answer

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

Question 14

Draw the Lewis structure for CCl4. What is the hybridization on the C atom?

Accepted Answer

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

Question 15

Draw a molecular orbital diagram and use it to determine which of the following is most stable.

Accepted Answer

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

Question 16

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⁻

Question 17

What is the molecular geometry of SF5-?

Accepted Answer

A)   octahedral
B)   seesaw
C)   square pyramidal
D)   trigonal bipyramidal

Question 18

Determine the electron geometry for the molecule SBr2.

Accepted Answer

A)   Linear
B)   Trigonal planar
C)   Tetrahedral
D)   Trigonal bipyramidal
E)   Octahedral

Question 19

Determine the electron geometry (eg)  and molecular geometry (mg)  of BrF3.

Accepted Answer

A)   eg = trigonal planar, mg = trigonal planar
B)   eg = trigonal bipyramidal, mg = T-shape
C)   eg = trigonal planar, mg = bent
D)   eg = trigonal bipyramidal, mg = seesaw
E)   eg = tetrahedral, mg = trigonal pyramidal

Question 20

Match the following.
-BeF2

Accepted Answer

A)  sp hybridized central atom
B)  octahedral electron geometry
C)  polar, but contains no polar bonds
D)  sp2 hybridized central atom
E)  linearF) nonpolar, but contains a polar covalent bondG) tetrahedralH) trigonal planarI) octahedralJ) polarK) trigonal bipyramidalL) seesaw molecular geometry

Exam 10: Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Draw a molecular orbital diagram and use it to determine which of the following is most stable.

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Draw the Lewis structure for CCl4. What is the hybridization on the C atom?

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What is the molecular geometry of SF5-?

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Determine the molecular geometry (mg) of the bolded and underlined atom CH3CH2NH2.

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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⁻

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Determine the electron geometry (eg) and molecular geometry (mg) of CO2.

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Using the VSEPR model, the electron-domain geometry of the central atom in SCl4 is ________.

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How many of the following molecules are polar? XeCl2 COF2 PCl4F SF6

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Which of the following statements is FALSE?

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How many of the following molecules have sp3 hybridization on the central atom? XeCl4 CH4 SF4 C2H2

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Match the following. -CH2F2

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Determine the electron geometry (eg) and molecular geometry (mg) of NCl3.

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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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Determine the electron geometry for the molecule SBr2.

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Determine the electron geometry (eg) and molecular geometry (mg) of BrF5.

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

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Match the following. -BeF2

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Determine the electron geometry (eg) , molecular geometry (mg) , and polarity of SF6.

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Give the approximate bond angle for a molecule with octahedral electron geometry and square pyramidal molecular geometry.

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Determine the electron geometry (eg) and molecular geometry (mg) of BrF3.

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Draw the Lewis structure for CCl₄. What is the hybridization on the C atom?

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What is the molecular geometry of SF₅^-?

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Determine the molecular geometry (mg) of the bolded and underlined atom CH₃CH₂NH₂.

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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⁻

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Determine the electron geometry (eg) and molecular geometry (mg) of CO₂.

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Using the VSEPR model, the electron-domain geometry of the central atom in SCl₄ is ________.

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How many of the following molecules are polar? XeCl₂ COF₂ PCl₄F SF₆

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How many of the following molecules have sp³ hybridization on the central atom? XeCl₄ CH₄ SF₄ C₂H₂

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Match the following. -CH₂F₂

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Determine the electron geometry (eg) and molecular geometry (mg) of NCl₃.

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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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The sketch should show all of the approp...
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Determine the electron geometry for the molecule SBr₂.

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Determine the electron geometry (eg) and molecular geometry (mg) of BrF₅.

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Match the following. -BeF₂

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Determine the electron geometry (eg) , molecular geometry (mg) , and polarity of SF₆.

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Determine the electron geometry (eg) and molecular geometry (mg) of BrF₃.

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