Question 1

Determine the electron geometry (eg) ,molecular geometry(mg) and polarity of XeO3.

Accepted Answer

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

Question 2

Give the electron geometry,molecular geometry,and hybridization for both carbons in CH3COOH.

Accepted Answer

eg = tetrahedral;mg ...

Question 3

Determine the electron geometry,molecular geometry and polarity of HBrO2 .

Accepted Answer

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

Question 4

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

Accepted Answer

A)  GeH2Br2
B)  SCl2
C)  AsCl5
D)  CF2Cl2
E)  All of the above are nonpolar and contain a polar covalent bond.

Question 5

A molecule containing a central atom with sp3 hybridization has a(n) ________ electron geometry.

Accepted Answer

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

Question 6

Draw the Lewis structure for BrO4⁻.What is the hybridization on the Br atom?

Accepted Answer

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

Question 7

Identify the shape that goes with sp3d.

Accepted Answer

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

Question 8

Determine the electron geometry (eg) and molecular geometry (mg) of XeF2.

Accepted Answer

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

Question 9

Determine the electron geometry (eg) and molecular geometry (mg) of CH31+.

Accepted Answer

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

Question 10

How many of the following molecules are polar?
BrCl3 CS2 SiF4 SO3

Accepted Answer

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

Question 11

Place the following in order of increasing X-Se-X bond angle,where X represents the outer atoms in each molecule.
SeO2 SeCl6 SeF2

Accepted Answer

A)  SeCl6 2 2
B)  SeF2 2 6
C)  SeF2 6 2
D)  SeO2 2 6
E)  SeCl6 2 2

Question 12

What is the bond order in He2+ ion?

Accepted Answer

A)  0
B)  1
C)  1/2
D)  2

Question 13

Identify the number of electron groups around a molecule with a tetrahedral shape.

Accepted Answer

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

Question 14

What is the molecular geometry of NCl3?

Accepted Answer

A)  T-shaped
B)  tetrahedral
C)  trigonal planar
D)  trigonal pyramidal

Question 15

Determine the hybridization about each carbon atom in the following structure.
CH2CHCCCH3

Accepted Answer

The first 2 C's are ...

Question 16

A molecule containing a central atom with sp3d2 hybridization has a(n) ________ electron geometry.

Accepted Answer

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

Question 17

Match the following.
-XeCl4

Accepted Answer

A)  polar
B)  s2p hybridized central atom
C)  see-saw molecular geometry
D)  sp hybridized central atom
E)  nonpolar,but contains a polar covalent bondF) octahedral electron geometryG) polar,but contains no polar bonds.

Question 18

What are the F-Po-F bond angles in PoF6 ?

Accepted Answer

A)  60°
B)  90°
C)  109.5°
D)  120°

Question 19

Which of the following statements is true?

Accepted Answer

A)  The total number of molecular orbitals formed doesn't always equal the number of atomic orbitals in the set.
B)  A bond order of 0 represents a stable chemical bond.
C)  When two atomic orbitals come together to form two molecular orbitals,one molecular orbital will be lower in energy than the two separate atomic orbitals,and one molecular orbital will be higher in energy than the separate atomic orbitals.
D)  Electrons placed in antibonding orbitals stabilize the ion/molecule.
E)  All of the above are true.

Question 20

The paramagnetic property of a molecule is due to the presence of unpaired electrons.Which of the following molecules is paramagnetic according to MO theory?

Accepted Answer

A)  O2
B)  N2
C)  F2
D)  H2

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

What is the bond order in He2+ ion?

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Determine the electron geometry (eg) and molecular geometry (mg) of CH31+.

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Identify the number of electron groups around a molecule with a tetrahedral shape.

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Determine the electron geometry,molecular geometry and polarity of HBrO2 .

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How many of the following molecules are polar? BrCl3 CS2 SiF4 SO3

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What is the molecular geometry of NCl3?

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A molecule containing a central atom with sp3 hybridization has a(n) ________ electron geometry.

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What are the F-Po-F bond angles in PoF6 ?

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Place the following in order of increasing X-Se-X bond angle,where X represents the outer atoms in each molecule. SeO2 SeCl6 SeF2

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A molecule containing a central atom with sp3d2 hybridization has a(n) ________ electron geometry.

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Identify the shape that goes with sp3d.

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Draw the Lewis structure for BrO4⁻.What is the hybridization on the Br atom?

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Give the electron geometry,molecular geometry,and hybridization for both carbons in CH3COOH.

Correct Answerverifiedeg = tetrahedral;mg ...View AnswerShow Answer

Determine the electron geometry (eg) ,molecular geometry(mg) and polarity of XeO3.

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The paramagnetic property of a molecule is due to the presence of unpaired electrons.Which of the following molecules is paramagnetic according to MO theory?

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Determine the hybridization about each carbon atom in the following structure. CH2CHCCCH3

Correct AnswerverifiedThe first 2 C's are ...View AnswerShow Answer

Determine the electron geometry (eg) and molecular geometry (mg) of XeF2.

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Match the following. -XeCl4

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

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Which of the following statements is true?

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What is the bond order in He₂⁺ion?

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Determine the electron geometry (eg) and molecular geometry (mg) of CH₃¹⁺.

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Determine the electron geometry,molecular geometry and polarity of HBrO₂ .

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How many of the following molecules are polar? BrCl₃ CS₂ SiF₄ SO₃

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What is the molecular geometry of NCl₃?

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A molecule containing a central atom with sp³ hybridization has a(n) ________ electron geometry.

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What are the F-Po-F bond angles in PoF₆ ?

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Place the following in order of increasing X-Se-X bond angle,where X represents the outer atoms in each molecule. SeO₂ SeCl₆SeF₂

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A molecule containing a central atom with sp³d² hybridization has a(n) ________ electron geometry.

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Identify the shape that goes with sp³d.

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Draw the Lewis structure for BrO₄^⁻.What is the hybridization on the Br atom?

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Give the electron geometry,molecular geometry,and hybridization for both carbons in CH₃COOH.

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eg = tetrahedral;mg ...
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Determine the electron geometry (eg) ,molecular geometry(mg) and polarity of XeO₃.

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Determine the hybridization about each carbon atom in the following structure. CH₂CHCCCH₃

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The first 2 C's are ...
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Determine the electron geometry (eg) and molecular geometry (mg) of XeF₂.

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Match the following. -XeCl₄

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