Question 1

What is the condensed formula of the compound below?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) B) and D)
F) B) and C)

Question 2

Which of the following is the appropriate conversion of (CH3) 2CHOCH2CH2CH2OH to a skeletal structure? 3) 2CHOCH2CH2CH2OH to a skeletal structure?   A) I B) II C) III D) IV" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) A) and B)
F) All of the above

Question 3

Which is more important in each pair of contributing resonance structures?

Accepted Answer

A)  II,IV,V
B)  II,III,V
C)  II,III,VI
D)  I,IV,VE) A) and B)
F) All of the above

Question 4

What is the molecular geometry around the carbon atom in CH4?

Accepted Answer

A)  Tetrahedral
B)  Trigonal Planar
C)  Trigonal Pyramidal
D)  LinearE) A) and D)
F) B) and C)

Question 5

What is the hybridization of the carbon atom in the methyl cation,(CH3+) ?

Accepted Answer

A)  sp3
B)  sp2
C)  sp
D)  pE) A) and D)
F) A) and C)

Question 6

Which of the following molecules has nonpolar covalent bonds?

Accepted Answer

A)  HCl
B)  N2
C)  CHCl3
D)  NOE) B) and C)
F) B) and D)

Question 7

Rank the following atoms in order of increasing electronegativity,putting the least electronegative first.

Accepted Answer

A)  I 
B)  I 
C)  III 
D)  I < II < IV < IIIE) A) and B)
F) A) and C)

Question 8

Which of the following covalent bonds has the largest dipole moment?

Accepted Answer

A)  C-H
B)  C-C
C)  C-O
D)  H-FE) A) and C)
F) B) and C)

Question 9

What is the ground-state electronic configuration of a chlorine anion (Cl-) ?

Accepted Answer

A)  1s2,2s2,2p6
B)  1s2,2s2,2p6,3s2,3p6
C)  1s2,2s2,2p6,3s2,3p5
D)  1s2,2s2,2p6,3s2,3p4E) None of the above
F) All of the above

Question 10

What is the formal charge of the carbon in carbon dioxide (CO2) when drawn with two double bonds?

Accepted Answer

A)  +1
B)  0
C)  -1
D)  -2E) A) and C)
F) A) and B) B

Question 11

Which of the following statements correctly describes the typical number of bonds for carbon,nitrogen,and oxygen in most neutral organic molecules?

Accepted Answer

A)  Carbon forms 4 covalent bonds,nitrogen forms 2 covalent bonds,and oxygen forms 3 covalent bonds.
B)  Carbon forms 4 covalent bonds,nitrogen forms 3 covalent bonds,and oxygen forms 2 covalent bonds.
C)  Carbon forms 4 covalent bonds,nitrogen forms 5 covalent bonds,and oxygen forms 2 covalent bonds.
D)  Carbon forms 4 covalent bonds,nitrogen forms 5 covalent bonds,and oxygen forms 4 covalent bonds.E) A) and C)
F) None of the above

Question 12

Which is the correct Lewis structure for acetic acid (CH3CO2H) ? 3CO2H) ?   A) I B) II C) III D) IV" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) B) and C)
F) All of the above

Question 13

Which of the following statements about resonance structures is true?

Accepted Answer

A)  Resonance structures have the same placement of electrons but different arrangement of atoms.
B)  Resonance structures have the same placement of atoms but different arrangement of electrons.
C)  Resonance structures have the same placement of atoms and the same arrangement of electrons.
D)  Resonance structures have different placement of atoms and different arrangement of electrons.E) All of the above
F) None of the above

Question 14

Consider compounds which contain both a heteroatom and a double bond.For which compound is no additional Lewis structure possible?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) B) and D)
F) B) and C)

Question 15

Which of the following statements about electronegativity and the periodic table is true?

Accepted Answer

A)  Electronegativity decreases across a row of the periodic table.
B)  Electronegativity increases down a column of the periodic table.
C)  Electronegativity increases across a row of the periodic table.
D)  Electronegativity does not change down a column of the periodic table.E) All of the above
F) B) and C) C

Question 16

Which of the following molecules does not have a net dipole moment of zero?

Accepted Answer

A)  CCl4
B)  BF3
C)  CO2
D)  NH3E) None of the above
F) All of the above

Question 17

Which is not an acceptable Lewis structure for the anion CH2NCO-? 2NCO-?   A) I B) II C) III D) IV" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) C) and D)
F) B) and C)

Question 18

Convert the following skeletal structure to a condensed structure.

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) B) and D)
F) None of the above A

Question 19

Which of the following statements about constitutional isomers is true?

Accepted Answer

A)  Constitutional isomers are different molecules having the different molecular formula.
B)  Constitutional isomers are different molecules having the same molecular formula.
C)  Constitutional isomers are same molecules having the different molecular formula.
D)  Constitutional isomers are same molecules having the same molecular formula.E) A) and B)
F) A) and C)

Question 20

How many constitutional isomers are there for a molecule having the molecular formula C2H4Cl2?

Accepted Answer

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

Exam 1: Structure and Bonding

What is the condensed formula of the compound below?

Correct AnswerverifiedShow Answer

Which of the following is the appropriate conversion of (CH3) 2CHOCH2CH2CH2OH to a skeletal structure?

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Which is more important in each pair of contributing resonance structures?

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What is the molecular geometry around the carbon atom in CH4?

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What is the hybridization of the carbon atom in the methyl cation,(CH3+) ?

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Which of the following molecules has nonpolar covalent bonds?

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Rank the following atoms in order of increasing electronegativity,putting the least electronegative first.

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Which of the following covalent bonds has the largest dipole moment?

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What is the ground-state electronic configuration of a chlorine anion (Cl-) ?

Correct AnswerverifiedShow Answer

What is the formal charge of the carbon in carbon dioxide (CO2) when drawn with two double bonds?

Correct AnswerverifiedB

Which of the following statements correctly describes the typical number of bonds for carbon,nitrogen,and oxygen in most neutral organic molecules?

Correct AnswerverifiedShow Answer

Which is the correct Lewis structure for acetic acid (CH3CO2H) ?

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Which of the following statements about resonance structures is true?

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Consider compounds which contain both a heteroatom and a double bond.For which compound is no additional Lewis structure possible?

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Which of the following statements about electronegativity and the periodic table is true?

Correct AnswerverifiedC

Which of the following molecules does not have a net dipole moment of zero?

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Which is not an acceptable Lewis structure for the anion CH2NCO-?

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Convert the following skeletal structure to a condensed structure.

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Which of the following statements about constitutional isomers is true?

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How many constitutional isomers are there for a molecule having the molecular formula C2H4Cl2?

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Which of the following is the appropriate conversion of (CH₃) ₂CHOCH₂CH₂CH₂OH to a skeletal structure?

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What is the molecular geometry around the carbon atom in CH₄?

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What is the hybridization of the carbon atom in the methyl cation,(CH₃⁺) ?

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What is the ground-state electronic configuration of a chlorine anion (Cl^-) ?

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What is the formal charge of the carbon in carbon dioxide (CO₂) when drawn with two double bonds?

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B

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Which is the correct Lewis structure for acetic acid (CH₃CO₂H) ?

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C

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Which is not an acceptable Lewis structure for the anion CH₂NCO^-?

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A

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How many constitutional isomers are there for a molecule having the molecular formula C₂H₄Cl₂?

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