Question 1

What is the hybridization of the nitrogen atom in the ammonium cation, NH4+?

Accepted Answer

A)  sp3
B)  sp2
C)  sp
D)  pE) None of the above
F) B) and C)

Question 2

Which of the following Lewis structures is correct?

Accepted Answer

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

Question 3

Which of the following pair does not represent resonance structures?

Accepted Answer

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

Question 4

Which molecule has the greatest difference in electronegativity (DE)  between the two different elements?

Accepted Answer

A)  CO2
B)  H2S
C)  NH3
D)  H2OE) B) and C)
F) C) and D)

Question 5

What 2 things will change between two resonance structures?

Accepted Answer

A)  The position of multiple bonds and non-bonded electrons.
B)  The position of multiple bonds and single bonds.
C)  The placement of atoms and single bonds.
D)  The placement of atoms and non-bonded electrons.E) B) and C)
F) A) and B)

Question 6

How many constitutional isomers are there for a molecule having the molecular formula C3H8O?

Accepted Answer

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

Question 7

Which of the following is the appropriate conversion of (CH3) 2CHCH2CHClCH3 to a skeletal structure?
3) 2CHCH2CHClCH3 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) None of the above
F) All of the above

Question 8

What is the approximate value of the H-C-H bond angle in methane, CH4?

Accepted Answer

A)  90°
B)  109.5°
C)  120°
D)  180°E) A) and C)
F) A) and B)

Question 9

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

Accepted Answer

A)  CCl4
B)  BF3
C)  CO2
D)  NH3E) A) and C)
F) B) and C)

Question 10

What is the approximate bond angle for the C-C-N bond in acetonitrile, CH3CN?

Accepted Answer

A)  90°
B)  109.5°
C)  120°
D)  180°E) B) and D)
F) None of the above

Question 11

Which of the following is a resonance structure of the compound below?

Accepted Answer

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

Question 12

What is the condensed formula of the compound below?

Accepted Answer

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

Question 13

What is the hybridization for each of the indicated atoms in the following compound?
2; II = sp2; III = sp2. B) I = sp2; II = sp3; III = sp3. C) I = sp; II = sp2; III = sp3. D) I = sp2; II = sp2; III = sp3." class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  I = sp2; II = sp2; III = sp2.
B)  I = sp2; II = sp3; III = sp3.
C)  I = sp; II = sp2; III = sp3.
D)  I = sp2; II = sp2; III = sp3.E) All of the above
F) A) and D)

Question 14

What is the formal charge of carbon in carbon monoxide (CO)  when drawn with a triple bond?

Accepted Answer

A)  0
B)  -2
C)  -1
D)  +1E) A) and C)
F) All of the above

Question 15

Convert the following skeletal structure to a condensed structure.

Accepted Answer

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

Question 16

How many constitutional isomers are there for a molecule having the molecular formula C2H6O?

Accepted Answer

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

Question 17

How many constitutional isomers are there for a molecule having the molecular formula C3H6?

Accepted Answer

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

Question 18

Which of the following molecules has non-polar covalent bonds?

Accepted Answer

A)  CO2
B)  N2
C)  CCl4
D)  HFE) C) and D)
F) None of the above

Question 19

Which atomic orbitals overlap to form the carbon-carbon s bonding molecular orbital of acetylene, C2H2?

Accepted Answer

A)  Csp2 + Csp2
B)  Csp + Csp
C)  Csp3 + Csp3
D)  C2p + C2pE) A) and B)
F) A) and C)

Question 20

Which of the following molecules has the smallest dipole moment?

Accepted Answer

A)  CO2
B)  HCl
C)  H2O
D)  NH3E) B) and C)
F) B) and D)

Exam 1: Structure and Bonding

What is the approximate bond angle for the C-C-N bond in acetonitrile, CH3CN?

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Which of the following pair does not represent resonance structures?

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Which of the following is a resonance structure of the compound below?

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Convert the following skeletal structure to a condensed structure.

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Which atomic orbitals overlap to form the carbon-carbon s bonding molecular orbital of acetylene, C2H2?

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What is the condensed formula of the compound below?

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Which of the following molecules has non-polar covalent bonds?

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What 2 things will change between two resonance structures?

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What is the approximate value of the H-C-H bond angle in methane, CH4?

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Which of the following is the appropriate conversion of (CH3) 2CHCH2CHClCH3 to a skeletal structure?

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What is the hybridization of the nitrogen atom in the ammonium cation, NH4+?

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How many constitutional isomers are there for a molecule having the molecular formula C3H8O?

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

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Which of the following Lewis structures is correct?

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What is the hybridization for each of the indicated atoms in the following compound?

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Which of the following molecules has the smallest dipole moment?

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How many constitutional isomers are there for a molecule having the molecular formula C2H6O?

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How many constitutional isomers are there for a molecule having the molecular formula C3H6?

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What is the formal charge of carbon in carbon monoxide (CO) when drawn with a triple bond?

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Which molecule has the greatest difference in electronegativity (DE) between the two different elements?

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What is the approximate bond angle for the C-C-N bond in acetonitrile, CH₃CN?

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Which atomic orbitals overlap to form the carbon-carbon s bonding molecular orbital of acetylene, C₂H₂?

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What is the approximate value of the H-C-H bond angle in methane, CH₄?

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Which of the following is the appropriate conversion of (CH₃) ₂CHCH₂CHClCH₃ to a skeletal structure?

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What is the hybridization of the nitrogen atom in the ammonium cation, NH₄⁺?

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How many constitutional isomers are there for a molecule having the molecular formula C₃H₈O?

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How many constitutional isomers are there for a molecule having the molecular formula C₂H₆O?

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How many constitutional isomers are there for a molecule having the molecular formula C₃H₆?

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