Question 1

Which of the following resonance structures is the least important contributor to the resonance hybrid of the acetate anion, CH3COO-? 3COO-?   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) B) and C)
F) C) and D)

Question 2

The following molecule contains an _____________functional group.

Accepted Answer

The answer of The following molecule contains an _____________functional group....

Question 3

Which of the following best represents the shape of the 2s atomic orbital of carbon?

Accepted Answer

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

Question 4

Which of the following is a tertiary amine?

Accepted Answer

A)  CH3CH2N(CH3) 2
B)  (CH3) 3CNH2
C)  CH3CH2NHCH3
D)  CH3CH2NHCH(CH3) 2E) All of the above
F) A) and B)

Question 5

How many electrons can the shell with a principal quantum number of 2 hold?

Accepted Answer

A)  1
B)  2
C)  4
D)  8E) B) and D)
F) B) and C)

Question 6

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

Accepted Answer

A)  90 ∘\circ∘ 
B)  109 ∘\circ∘ 
C)  120 ∘\circ∘ 
D)  180 ∘\circ∘  E) All of the above
F) A) and B)

Question 7

Which of the following molecules is not linear?

Accepted Answer

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

Question 8

The following molecule is classified as a __________amine.

Accepted Answer

The answer of The following molecule is classified as a...

Question 9

Which of the following compounds is an aldehyde?

Accepted Answer

A)  CH3CH2CH2COOH
B)  CH3CH2CHO
C)  CH3CH2CH2OH
D)  CH3CH2COCH3E) A) and B)
F) All of the above

Question 10

How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH3-?

Accepted Answer

A)  2
B)  4
C)  6
D)  8E) C) and D)
F) A) and B)

Question 11

How many electrons can the shell with a principal quantum number of 1 hold?

Accepted Answer

A)  1
B)  2
C)  4
D)  8E) None of the above
F) A) and B)

Question 12

Which of the following best represents an sp2 hybridized atomic orbital of carbon which overlaps with the 1s atomic orbital of hydrogen to form a C-H  σ\sigmaσ bonding molecular orbital in ethene, H2C=CH2 2 hybridized atomic orbital of carbon which overlaps with the 1s atomic orbital of hydrogen to form a C-H  \sigma bonding molecular orbital in ethene, H2C=CH2   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) A) and C)
F) None of the above

Question 13

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ammonia (NH3) and which contain the lone pair of electrons. Label each orbital with its hybridization.

Accepted Answer

Question 14

The following species forms during an organic reaction.  The formal charge on the carbon atom indicated by the arrow is +1.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following species possesses a formal charge?

Accepted Answer

A)  BH3
B)  BH4
C)  CCl4
D)  H2SE) None of the above
F) C) and D)

Question 16

The formal charge on carbon in carbon monoxide is______.

Accepted Answer

The answer of The formal charge on carbon in carbon...

Question 17

Which of the following is/are tetrahedral?
1) methane, CH4
2) methyl carbocation, CH3+
3) methyl carbanion, CH3-
4) methyl radical, CH3-

Accepted Answer

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

Question 18

Which atomic orbitals overlap to form the C-O bond of dimethyl ether, (CH3) 2O?

Accepted Answer

A)  C 2sp3 + O 2sp2
B)  C 2sp2 + O 2p
C)  C 2sp2 + O 2sp2
D)  C 2sp3 + O 2sp3E) All of the above
F) B) and D)

Question 19

How many electrons are there in the valence shell of the nitrogen atom of ammonia?

Accepted Answer

A)  4
B)  5
C)  6
D)  8E) A) and C)
F) All of the above

Question 20

Which of the following bonds has the smallest dipole moment?

Accepted Answer

A)  Li-Cl
B)  C-H
C)  O-H
D)  H-ClE) B) and D)
F) None of the above

Exam 1: Covalent Bonding and Shapes of Molecules

The following molecule contains an _____________functional group.

Correct Answer
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Which of the following is a tertiary amine?

Correct Answer
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Which of the following best represents the shape of the 2s atomic orbital of carbon?

Correct Answer
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How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH₃^-?

Correct Answer
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Which atomic orbitals overlap to form the C-O bond of dimethyl ether, (CH₃) ₂O?

Correct Answer
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Correct Answer
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Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ammonia (NH₃) and which contain the lone pair of electrons. Label each orbital with its hybridization.

Correct Answer
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What is the approximate value of the H-C-H bond angles in a methyl anion, CH₃^-?

Correct Answer
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How many electrons are there in the valence shell of the nitrogen atom of ammonia?

Correct Answer
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The following species forms during an organic reaction. The formal charge on the carbon atom indicated by the arrow is +1.

Correct Answer
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How many electrons can the shell with a principal quantum number of 1 hold?

Correct Answer
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Which of the following resonance structures is the least important contributor to the resonance hybrid of the acetate anion, CH₃COO^-?

Correct Answer
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How many electrons can the shell with a principal quantum number of 2 hold?

Correct Answer
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Which of the following compounds is an aldehyde?

Correct Answer
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Which of the following species possesses a formal charge?

Correct Answer
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Which of the following bonds has the smallest dipole moment?

Correct Answer
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The following molecule is classified as a __________amine.

Correct Answer
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The formal charge on carbon in carbon monoxide is______.

Correct Answer
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Which of the following molecules is not linear?

Correct Answer
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Which of the following is/are tetrahedral? 1) methane, CH₄ 2) methyl carbocation, CH₃⁺ 3) methyl carbanion, CH₃^- 4) methyl radical, CH₃^-

Correct Answer
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Exam 1: Covalent Bonding and Shapes of Molecules

The following molecule contains an _____________functional group.

Correct AnswerverifiedShow Answer

Which of the following is a tertiary amine?

Correct AnswerverifiedShow Answer

Which of the following best represents the shape of the 2s atomic orbital of carbon?

Correct AnswerverifiedShow Answer

How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH3-?

Correct AnswerverifiedShow Answer

Which atomic orbitals overlap to form the C-O bond of dimethyl ether, (CH3) 2O?

Correct AnswerverifiedShow Answer

Which of the following best represents an sp2 hybridized atomic orbital of carbon which overlaps with the 1s atomic orbital of hydrogen to form a C-H σ\sigmaσ bonding molecular orbital in ethene, H2C=CH2

Correct AnswerverifiedShow Answer

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ammonia (NH3) and which contain the lone pair of electrons. Label each orbital with its hybridization.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

How many electrons are there in the valence shell of the nitrogen atom of ammonia?

Correct AnswerverifiedShow Answer

The following species forms during an organic reaction. The formal charge on the carbon atom indicated by the arrow is +1.

Correct AnswerverifiedShow Answer

How many electrons can the shell with a principal quantum number of 1 hold?

Correct AnswerverifiedShow Answer

Which of the following resonance structures is the least important contributor to the resonance hybrid of the acetate anion, CH3COO-?

Correct AnswerverifiedShow Answer

How many electrons can the shell with a principal quantum number of 2 hold?

Correct AnswerverifiedShow Answer

Which of the following compounds is an aldehyde?

Correct AnswerverifiedShow Answer

Which of the following species possesses a formal charge?

Correct AnswerverifiedShow Answer

Which of the following bonds has the smallest dipole moment?

Correct AnswerverifiedShow Answer

The following molecule is classified as a __________amine.

Correct AnswerverifiedShow Answer

The formal charge on carbon in carbon monoxide is______.

Correct AnswerverifiedShow Answer

Which of the following molecules is not linear?

Correct AnswerverifiedShow Answer

Which of the following is/are tetrahedral? 1) methane, CH4 2) methyl carbocation, CH3+ 3) methyl carbanion, CH3- 4) methyl radical, CH3-

Correct AnswerverifiedShow Answer

Correct Answer
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How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH₃^-?

Correct Answer
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Which atomic orbitals overlap to form the C-O bond of dimethyl ether, (CH₃) ₂O?

Correct Answer
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Correct Answer
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Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ammonia (NH₃) and which contain the lone pair of electrons. Label each orbital with its hybridization.

Correct Answer
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What is the approximate value of the H-C-H bond angles in a methyl anion, CH₃^-?

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Which of the following resonance structures is the least important contributor to the resonance hybrid of the acetate anion, CH₃COO^-?

Correct Answer
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Correct Answer
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Correct Answer
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Which of the following is/are tetrahedral? 1) methane, CH₄ 2) methyl carbocation, CH₃⁺ 3) methyl carbanion, CH₃^- 4) methyl radical, CH₃^-

Correct Answer
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