Question 1

For which one of the following molecules is the indicated type of hybridization not appropriate for the central atom?

Accepted Answer

A)  
B)  
C)  
D)  
E)  F) C) and D)
G) All of the above

Question 2

A molecule with the formula AX3 uses __________ to form its bonds.

Accepted Answer

A)  sp hybrid orbitals
B)  sp2 hybrid orbitals
C)  sp3 hybrid orbitals
D)  sp3d hybrid orbitals
E)  sp3d2 hybrid orbitalsF) D) and E)
G) A) and C)

Question 3

A molecule with the formula AX4 uses _________ to form its bonds.

Accepted Answer

A)  sp hybrid orbitals
B)  sp2 hybrid orbitals
C)  sp3 hybrid orbitals
D)  sp3d hybrid orbitals
E)  sp3d2 hybrid orbitalsF) A) and C)
G) B) and E)

Question 4

In molecular orbital theory,combination of two atomic orbitals produces two molecular orbitals.

Accepted Answer

A) True 
 B)False

Question 5

In applying molecular orbital theory,the bond order is calculated in the same way as with Lewis structures.

Accepted Answer

A) True 
 B)False

Question 6

Valence bond theory predicts that iodine will use _____ hybrid orbitals in ICl2-.

Accepted Answer

A)  sp2
B)  sp3
C)  sp3d
D)  sp3d2
E)  None of these choices is correct.F) A) and D)
G) A) and C)

Question 7

According to valence bond theory,overlap of bonding orbitals of atoms will weaken a bond,due to electron-electron repulsion.

Accepted Answer

A) True 
 B)False

Question 8

When PCl5 solidifies it forms PCl4+ cations and PCl6-anions.According to valence bond theory,what hybrid orbitals are used by phosphorus in the PCl4+ cations?

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2F) C) and D)
G) C) and E)

Question 9

In not more than two sentences,explain when and why chemists make use of the concept of hybridization.

Accepted Answer

Chemists postulate hybridizati...

Question 10

Valence bond theory predicts that carbon will use _____ hybrid orbitals in the carbonate anion,CO32-.

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2F) D) and E)
G) A) and C)

Question 11

In the valence bond treatment,overlap of an s orbital on one atom with an sp3 orbital on another atom can give rise to a  $\sigma$ bond.

Accepted Answer

A) True 
 B)False

Question 12

Valence bond theory predicts that xenon will use _____ hybrid orbitals in XeOF4.

Accepted Answer

A)  sp
B)  sp2
C)  sp3
D)  sp3d
E)  sp3d2F) C) and D)
G) A) and B)

Question 13

Atoms of period 3 and beyond can undergo sp3d 2 hybridization,but atoms of period 2 cannot.

Accepted Answer

A) True 
 B)False

Question 14

In the context of molecular orbital (MO)theory,explain how atomic p orbitals can give rise to:
a.a  $\sigma$ MO
b.a $\pi$ MO

Accepted Answer

a.A  <img  loading="lazy" src="/assets/images/blured-textbook.svg" class="d-inline m-1" alt="blured image" width="139" height="30"> MO arises when atomic p orbitals w...

Question 15

A molecule with the formula AX3E uses _________ to form its bonds.

Accepted Answer

A)  s and p atomic orbitals
B)  sp3 hybrid orbitals
C)  sp2 hybrid orbitals
D)  sp hybrid orbitals
E)  sp3d2 hybrid orbitalsF) D) and E)
G) A) and E)

Question 16

In molecular orbital theory,molecules with an even number of electrons will have bond orders which are whole numbers.

Accepted Answer

A) True 
 B)False

Question 17

In one sentence state how molecular orbitals are usually obtained.

Accepted Answer

By the linear combin...

Question 18

Valence bond theory predicts that bromine will use _____ hybrid orbitals in BrF5.

Accepted Answer

A)  sp2
B)  sp3
C)  sp3d
D)  sp3d2
E)  None of these choices is correct.F) C) and D)
G) B) and D)

Question 19

A molecule with the formula AX4E2 uses _________ to form its bonds.

Accepted Answer

A)  sp hybrid orbitals
B)  sp2 hybrid orbitals
C)  sp3 hybrid orbitals
D)  sp3d hybrid orbitals
E)  sp3d2 hybrid orbitalsF) A) and E)
G) B) and C)

Question 20

Explain what is meant by the term "bond order" and describe how it can be calculated using the information in a molecular orbital energy level diagram.

Accepted Answer

The bond order in MO theory is the net n...

Exam 11: Theories of Covalent Bonding

For which one of the following molecules is the indicated type of hybridization not appropriate for the central atom?

Correct AnswerverifiedShow Answer

A molecule with the formula AX3 uses __________ to form its bonds.

Correct AnswerverifiedShow Answer

Atoms of period 3 and beyond can undergo sp3d 2 hybridization,but atoms of period 2 cannot.

Correct AnswerverifiedShow Answer

Valence bond theory predicts that iodine will use _____ hybrid orbitals in ICl2-.

Correct AnswerverifiedShow Answer

In molecular orbital theory,combination of two atomic orbitals produces two molecular orbitals.

Correct AnswerverifiedShow Answer

A molecule with the formula AX3E uses _________ to form its bonds.

Correct AnswerverifiedShow Answer

In the context of molecular orbital (MO)theory,explain how atomic p orbitals can give rise to: a.a σ\sigmaσ MO b.a π\piπ MO

Correct Answerverifieda.A MO arises when atomic p orbitals w...View AnswerShow Answer

In the valence bond treatment,overlap of an s orbital on one atom with an sp3 orbital on another atom can give rise to a σ\sigmaσ bond.

Correct AnswerverifiedShow Answer

In applying molecular orbital theory,the bond order is calculated in the same way as with Lewis structures.

Correct AnswerverifiedShow Answer

A molecule with the formula AX4E2 uses _________ to form its bonds.

Correct AnswerverifiedShow Answer

According to valence bond theory,overlap of bonding orbitals of atoms will weaken a bond,due to electron-electron repulsion.

Correct AnswerverifiedShow Answer

Explain what is meant by the term "bond order" and describe how it can be calculated using the information in a molecular orbital energy level diagram.

Correct AnswerverifiedThe bond order in MO theory is the net n...View AnswerShow Answer

In one sentence state how molecular orbitals are usually obtained.

Correct AnswerverifiedBy the linear combin...View AnswerShow Answer

Valence bond theory predicts that xenon will use _____ hybrid orbitals in XeOF4.

Correct AnswerverifiedShow Answer

Valence bond theory predicts that bromine will use _____ hybrid orbitals in BrF5.

Correct AnswerverifiedShow Answer

In not more than two sentences,explain when and why chemists make use of the concept of hybridization.

Correct AnswerverifiedChemists postulate hybridizati...View AnswerShow Answer

In molecular orbital theory,molecules with an even number of electrons will have bond orders which are whole numbers.

Correct AnswerverifiedShow Answer

A molecule with the formula AX4 uses _________ to form its bonds.

Correct AnswerverifiedShow Answer

Valence bond theory predicts that carbon will use _____ hybrid orbitals in the carbonate anion,CO32-.

Correct AnswerverifiedShow Answer

When PCl5 solidifies it forms PCl4+ cations and PCl6-anions.According to valence bond theory,what hybrid orbitals are used by phosphorus in the PCl4+ cations?

Correct AnswerverifiedShow Answer

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A molecule with the formula AX₃ uses __________ to form its bonds.

Correct Answer
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Atoms of period 3 and beyond can undergo sp³d ² hybridization,but atoms of period 2 cannot.

Correct Answer
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Valence bond theory predicts that iodine will use _____ hybrid orbitals in ICl₂^-.

Correct Answer
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A molecule with the formula AX₃E uses _________ to form its bonds.

Correct Answer
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In the context of molecular orbital (MO)theory,explain how atomic p orbitals can give rise to: a.a $\sigma$ MO b.a $\pi$ MO

Correct Answer
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a.A MO arises when atomic p orbitals w...
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In the valence bond treatment,overlap of an s orbital on one atom with an sp³ orbital on another atom can give rise to a $\sigma$ bond.

Correct Answer
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A molecule with the formula AX₄E₂ uses _________ to form its bonds.

Correct Answer
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The bond order in MO theory is the net n...
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By the linear combin...
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Valence bond theory predicts that xenon will use _____ hybrid orbitals in XeOF₄.

Correct Answer
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Valence bond theory predicts that bromine will use _____ hybrid orbitals in BrF₅.

Correct Answer
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Correct Answer
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Chemists postulate hybridizati...
View Answer

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A molecule with the formula AX₄ uses _________ to form its bonds.

Correct Answer
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Valence bond theory predicts that carbon will use _____ hybrid orbitals in the carbonate anion,CO₃^2-.

Correct Answer
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When PCl₅ solidifies it forms PCl₄⁺ cations and PCl₆^-anions.According to valence bond theory,what hybrid orbitals are used by phosphorus in the PCl₄⁺ cations?

Correct Answer
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