Question 1

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in water (H2O) and which contain the lone pair of electrons. Label each orbital with its hybridization.

Accepted Answer

Question 2

Consider the following molecular model.  The condensed structural formula would be $\quad$$\quad$$\mathrm{CH}_{3} \quad\mathrm{CH}_{3}$
$\quad$$\quad$$\quad$|$\quad$$\quad$$\quad$|
$\mathrm{CH}_{3}-\mathrm{CH}-\mathrm{CH}-\mathrm{CH}_{3}$

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is a primary (1°)  amine?

Accepted Answer

A)   1
B)   2
C)   3
D)   4E) All of the above
F) B) and C)

Question 4

Which of the following elements has the highest electronegativity?

Accepted Answer

A)   C
B)   P
C)   Si
D)   ClE) A) and C)
F) B) and C)

Question 5

Which of the following species possesses a formal charge?

Accepted Answer

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

Question 6

Which atomic orbitals overlap to form the carbon-hydrogen σ bonding molecular orbitals of ethene, H2C=CH2?

Accepted Answer

A)   C2p + H1s
B)   C2sp + H1s
C)   C2sp2 + H1s
D)   C2sp3 + H1sE) C) and D)
F) None of the above

Question 7

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

Accepted Answer

A)   1
B)   2
C)   4
D)   8E) A) and C)
F) All of the above

Question 8

The hybridization on the numbered carbon atoms in the following compound would be Carbon 1 sp3 and Carbon 2 sp2.

Accepted Answer

A) True 
 B)False

Question 9

Consider the following structural formula.  The following is a resonance structure.

Accepted Answer

A) True 
 B)False

Question 10

Convert the following structure into a bond-line drawing.

Accepted Answer

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

Question 11

Which of the following compounds is a ketone?

Accepted Answer

A)   CH3CH2COOH
B)   CH3CH2CHO
C)   CH3CH2CH2OH
D)   CH3COCH3E) A) and D)
F) A) and C)

Question 12

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) A) and C)
F) A) and B)

Question 13

The following molecules all contain the same functional group except 2.
1.CH3OH
2.CH3OCH3
3.CH3CH2OH
4.CH3CH(OH)CH3

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is a tertiary amine?

Accepted Answer

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

Question 15

Which of the following is trigonal planar?

Accepted Answer

A)   boron trifluoride, BF3
B)   methyl anion, CH3−
C)   methane, CH4
D)   ammonia, NH3E) B) and D)
F) A) and D)

Question 16

What is the approximate value of the H−C−H bond angles in methane, CH4?

Accepted Answer

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

Question 17

Draw bond-line structures of all of the aldehydes that have the formula C5H10O.

Accepted Answer

Question 18

Draw bond-line structures of all of the alcohols that have the formula C4H10O.

Accepted Answer

Question 19

Draw bond-line structures of all of the primary (1°) alcohols that have the formula C5H12O.

Accepted Answer

Question 20

How many electrons are there in the valence shell of the carbon atom of a methyl cation, CH3+?

Accepted Answer

A)   4
B)   5
C)   6
D)   7E) None of the above
F) All of the above

Exam 1: Covalent Bonding and Shapes of Molecules

Which of the following is trigonal planar?

Correct Answer
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The following molecules all contain the same functional group except 2. 1.CH₃OH 2.CH₃OCH₃ 3.CH₃CH₂OH 4.CH₃CH(OH)CH₃

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

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Draw bond-line structures of all of the aldehydes that have the formula C₅H₁₀O.

Correct Answer
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Draw bond-line structures of all of the primary (1°) alcohols that have the formula C₅H₁₂O.

Correct Answer
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Consider the following structural formula. The following is a resonance structure.

Correct Answer
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What is the approximate value of the H−C−H bond angles in methane, CH₄?

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Which atomic orbitals overlap to form the carbon-hydrogen σ bonding molecular orbitals of ethene, H₂C=CH₂?

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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Which of the following is a tertiary amine?

Correct Answer
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Which of the following is a primary (1°) amine?

Correct Answer
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Convert the following structure into a bond-line drawing.

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 compounds is a ketone?

Correct Answer
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The hybridization on the numbered carbon atoms in the following compound would be Carbon 1 sp³ and Carbon 2 sp².

Correct Answer
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Draw bond-line structures of all of the alcohols that have the formula C₄H₁₀O.

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 water (H₂O) and which contain the lone pair of electrons. Label each orbital with its hybridization.

Correct Answer
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How many electrons are there in the valence shell of the carbon atom of a methyl cation, CH₃⁺?

Correct Answer
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Which of the following elements has the highest electronegativity?

Correct Answer
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Exam 1: Covalent Bonding and Shapes of Molecules

Which of the following is trigonal planar?

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The following molecules all contain the same functional group except 2. 1.CH3OH 2.CH3OCH3 3.CH3CH2OH 4.CH3CH(OH)CH3

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

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Draw bond-line structures of all of the aldehydes that have the formula C5H10O.

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Draw bond-line structures of all of the primary (1°) alcohols that have the formula C5H12O.

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Consider the following structural formula. The following is a resonance structure.

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Consider the following molecular model. The condensed structural formula would be \quad\quadCH3CH3\mathrm{CH}_{3} \quad\mathrm{CH}_{3}CH3​CH3​ \quad\quad\quad | \quad\quad\quad | CH3−CH−CH−CH3\mathrm{CH}_{3}-\mathrm{CH}-\mathrm{CH}-\mathrm{CH}_{3}CH3​−CH−CH−CH3​

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What is the approximate value of the H−C−H bond angles in methane, CH4?

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Which atomic orbitals overlap to form the carbon-hydrogen σ bonding molecular orbitals of ethene, H2C=CH2?

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

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Which of the following is a tertiary amine?

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Which of the following is a primary (1°) amine?

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Convert the following structure into a bond-line drawing.

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Which of the following species possesses a formal charge?

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Which of the following compounds is a ketone?

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The hybridization on the numbered carbon atoms in the following compound would be Carbon 1 sp3 and Carbon 2 sp2.

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Draw bond-line structures of all of the alcohols that have the formula C4H10O.

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Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in water (H2O) and which contain the lone pair of electrons. Label each orbital with its hybridization.

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How many electrons are there in the valence shell of the carbon atom of a methyl cation, CH3+?

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Which of the following elements has the highest electronegativity?

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The following molecules all contain the same functional group except 2. 1.CH₃OH 2.CH₃OCH₃ 3.CH₃CH₂OH 4.CH₃CH(OH)CH₃

Correct Answer
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Draw bond-line structures of all of the aldehydes that have the formula C₅H₁₀O.

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Draw bond-line structures of all of the primary (1°) alcohols that have the formula C₅H₁₂O.

Correct Answer
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What is the approximate value of the H−C−H bond angles in methane, CH₄?

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Which atomic orbitals overlap to form the carbon-hydrogen σ bonding molecular orbitals of ethene, H₂C=CH₂?

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

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The hybridization on the numbered carbon atoms in the following compound would be Carbon 1 sp³ and Carbon 2 sp².

Correct Answer
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Draw bond-line structures of all of the alcohols that have the formula C₄H₁₀O.

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 water (H₂O) and which contain the lone pair of electrons. Label each orbital with its hybridization.

Correct Answer
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How many electrons are there in the valence shell of the carbon atom of a methyl cation, CH₃⁺?

Correct Answer
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