Question 1

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

Question 2

Circle and name the functional groups in the following molecule.

Accepted Answer

The answer of Circle and name the functional groups in...

Question 3

Which of the following is an ionic bond?

Accepted Answer

A)   Br−Br
B)   C−Cl
C)   C−S
D)   Na−OE) A) and B)
F) None of the above

Question 4

What is the ground-state electronic configuration of a sodium cation (sodium: atomic number 11) ?

Accepted Answer

A)   1s22s22p63s1
B)   1s22s22p53s1
C)   1s22s22p6
D)   1s22s22p63s2E) All of the above
F) A) and D)

Question 5

Which of the following compounds is a carboxylic acid?

Accepted Answer

A)   CH3CH2COOH
B)   CH3CH2OCH3
C)   CH3CH2CH2OH
D)   CH3CH2CHOE) B) and D)
F) All of the above

Question 6

The following molecule contains an _____________functional group.  ​

Accepted Answer

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

Question 7

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) A) and C)
F) A) and D)

Question 8

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 9

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

Accepted Answer

Question 10

The formal charge on carbon in carbon monoxide is______.

Accepted Answer

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

Question 11

Which of the following shows curved arrows that correctly accounts for the differences between the two structures?

Accepted Answer

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

Question 12

The percent s character in an sp2 hybridized orbital is approximately 33%.

Accepted Answer

A) True 
 B)False

Question 13

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

Accepted Answer

Question 14

Convert the following structure into a bond-line drawing.

Accepted Answer

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

Question 15

The approximate H-C-H bond angle in methane is ______°.

Accepted Answer

The answer of The approximate H-C-H bond angle in methane...

Question 16

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

Accepted Answer

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

Question 17

Which of the following statements is not true regarding resonance structures?

Accepted Answer

A)   Each resonance structure is in rapid equilibrium with all of the other structures
B)   The resonance structures may have different energies
C)   All resonance structures must have the same arrangement of atoms
D)   All resonance structures must have the same number of electronsE) All of the above
F) A) and D)

Question 18

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

Accepted Answer

A)   90°
B)   109°
C)   120°
D)   180°E) B) and C)
F) A) 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) B) and C)

Question 20

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

Accepted Answer

A)   90°
B)   109°
C)   120°
D)   180°E) None of the above
F) B) and C)

Exam 1: Covalent Bonding and Shapes of Molecules

The approximate H-C-H bond angle in methane is ______°.

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

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The following molecule contains an _____________functional group. ​

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

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Circle and name the functional groups in the following molecule.

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

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The formal charge on carbon in carbon monoxide is______.

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Which of the following statements is not true regarding resonance structures?

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Which of the following is an ionic bond?

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Convert the following structure into a bond-line drawing.

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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 shows curved arrows that correctly accounts for the differences between the two structures?

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

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Which of the following compounds is a carboxylic acid?

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

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What is the ground-state electronic configuration of a sodium cation (sodium: atomic number 11) ?

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

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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.

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Which of the following bonds has the smallest dipole moment?

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The percent s character in an sp2 hybridized orbital is approximately 33%.

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The following molecule contains an _____________functional group.

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

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

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

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

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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.

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The percent s character in an sp² hybridized orbital is approximately 33%.

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