Question 1

Which of the following molecules has a molecular dipole moment?

Accepted Answer

A)  H2O
B)  CO2
C)  HC ≡\equiv≡ CH
D)  Cl2 E) C) and D)
F) B) and C)

Question 2

Draw bond-line structures of all of the alkanes that have the formula C5H12.

Accepted Answer

Question 3

Convert the following structure into a bond-line drawing.

Accepted Answer

The answer of Convert the following structure into a bond-line...

Question 4

Which of the following resonance structures makes the largest contribution to the structure of [H2CCHO]-? 2CCHO]-?   A) 1 B) 2 C) 3 D) 4" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) A) and B)
F) A) and C)

Question 5

Which of the following bonds is a polar covalent bond?

Accepted Answer

A)  Na-F
B)  C-H
C)  C-O
D)  Cl-ClE) B) and C)
F) A) and B)

Question 6

Draw bond-line structures of all of the tertiary (3$\circ$) amines that have the formula C5H11N.

Accepted Answer

Question 7

Which of the circled bonds is the strongest?

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) None of the above
F) All of the above

Question 8

Which of the following molecules has a molecular dipole moment?

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) None of the above
F) A) and B)

Question 9

Which of the following is an ionic bond?

Accepted Answer

A)  Br-Br
B)  C-Cl
C)  C-S
D)  Na-OE) A) and D)
F) A) and B)

Question 10

Which of the following best represents an sp3 hybridized atomic orbital containing the lone pair of electrons of ammonia, NH3? 3 hybridized atomic orbital containing the lone pair of electrons of ammonia, NH3?   A) 1 B) 2 C) 3 D) 4" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  1
B)  2
C)  3
D)  4E) A) and D)
F) C) and D)

Question 11

Which of the following species has an atom that has an unfilled valence shell of electrons?

Accepted Answer

A)  molecular bromine, Br2
B)  fluoride anion, F-
C)  ammonia, NH3
D)  aluminum trichloride, AlCl3E) C) and D)
F) B) and C)

Question 12

What is the molecular formula of Ritalin, shown below?

Accepted Answer

The answer of What is the molecular formula of Ritalin,...

Question 13

Which of the following statements is not true?

Accepted Answer

A)  The sp3C-H bond of an alkane is weaker than the spC-H bond of an alkyne.
B)  The carbon-carbon triple bond of an alkyne is shorter than the carbon-carbon bond of alkenes.
C)  The carbon-carbon triple bond of an alkene is exactly three times as strong as a carbon-carbon single bond of an alkane.
D)  The sp3C-H bond of an alkane is longer than the spC-H bond of an alkyne.E) A) and B)
F) A) and C) C

Question 14

Which of the following bonds is a polar covalent bond?

Accepted Answer

A)  Na-Cl
B)  C-Cl
C)  C-H
D)  Cl-ClE) A) and B)
F) All of the above

Question 15

Overlap of the two atomic orbitals as shown could result in the formation of a $\pi$ bond.

Accepted Answer

A) True 
 B)False

Question 16

What is the molecular formula of aspartame, shown below?

Accepted Answer

The answer of What is the molecular formula of aspartame,...

Question 17

Which of the following is a primary (1 ∘\circ∘ )  amine?  \circ )  amine?   A) 1 B) 2 C) 3 D) 4 " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  1
B)  2
C)  3
D)  4 E) C) and D)
F) A) and D) C

Question 18

What is the approximate value of the H-C-H bond angles in a methyl cation, CH3+?

Accepted Answer

A)  90 ∘\circ∘ 
B)  109 ∘\circ∘ 
C)  120 ∘\circ∘ 
D)  180 ∘\circ∘  E) B) and D)
F) B) and C)

Question 19

Which of the following species has an atom that has an unfilled valence shell of electrons?

Accepted Answer

A)  molecular hydrogen, H2
B)  hydroxide anion, HO-
C)  boron trifluoride, BF3
D)  water, H2OE) None of the above
F) A) and C)

Question 20

Convert the following structure into a bond-line drawing.

Accepted Answer

The answer of Convert the following structure into a bond-line...

Exam 1: Covalent Bonding and Shapes of Molecules

Which of the following molecules has a molecular dipole moment?

Correct AnswerverifiedShow Answer

Draw bond-line structures of all of the alkanes that have the formula C5H12.

Correct AnswerverifiedShow Answer

Convert the following structure into a bond-line drawing.

Correct AnswerverifiedShow Answer

Which of the following resonance structures makes the largest contribution to the structure of [H2CCHO]-?

Correct AnswerverifiedShow Answer

Which of the following bonds is a polar covalent bond?

Correct AnswerverifiedShow Answer

Draw bond-line structures of all of the tertiary (3 ∘\circ∘ ) amines that have the formula C5H11N.

Correct Answerverified11ea7d75_f5da_bd13_b9bd_136ab4437de0_TB1813_00_TB1813_00

Which of the circled bonds is the strongest?

Correct AnswerverifiedShow Answer

Which of the following molecules has a molecular dipole moment?

Correct AnswerverifiedShow Answer

Which of the following is an ionic bond?

Correct AnswerverifiedShow Answer

Which of the following best represents an sp3 hybridized atomic orbital containing the lone pair of electrons of ammonia, NH3?

Correct AnswerverifiedShow Answer

Which of the following species has an atom that has an unfilled valence shell of electrons?

Correct AnswerverifiedShow Answer

What is the molecular formula of Ritalin, shown below?

Correct AnswerverifiedShow Answer

Which of the following statements is not true?

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Which of the following bonds is a polar covalent bond?

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Overlap of the two atomic orbitals as shown could result in the formation of a π\piπ bond.

Correct AnswerverifiedShow Answer

What is the molecular formula of aspartame, shown below?

Correct AnswerverifiedShow Answer

Which of the following is a primary (1 ∘\circ∘ ) amine?

Correct AnswerverifiedC

What is the approximate value of the H-C-H bond angles in a methyl cation, CH3+?

Correct AnswerverifiedShow Answer

Which of the following species has an atom that has an unfilled valence shell of electrons?

Correct AnswerverifiedShow Answer

Convert the following structure into a bond-line drawing.

Correct AnswerverifiedShow Answer

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Draw bond-line structures of all of the alkanes that have the formula C₅H₁₂.

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Which of the following resonance structures makes the largest contribution to the structure of [H₂CCHO]^-?

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Draw bond-line structures of all of the tertiary (3^$\circ$) amines that have the formula C₅H₁₁N.

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11ea7d75_f5da_bd13_b9bd_136ab4437de0_TB1813_00_TB1813_00

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Which of the following best represents an sp³ hybridized atomic orbital containing the lone pair of electrons of ammonia, NH₃?

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C

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Overlap of the two atomic orbitals as shown could result in the formation of a $\pi$ bond. $Overlap of the two atomic orbitals as shown could result in the formation of a \pi bond.$ $Overlap of the two atomic orbitals as shown could result in the formation of a \pi bond.$

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Which of the following is a primary (1^$\circ$) amine? $Which of the following is a primary (1<sup> \circ </sup>) amine? A) 1 B) 2 C) 3 D) 4$

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C

What is the approximate value of the H-C-H bond angles in a methyl cation, CH₃⁺?

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