Question 1

Convert the following structure into a bond-line drawing.

Accepted Answer

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

Question 2

Which atomic orbitals overlap to form the carbon-carbon s and p bonding molecular orbitals of ethene, H2C=CH2?

Accepted Answer

A)  C2sp3 + C2sp3, and C2p + C2p 
B)  C2sp2 + C2sp2, and C2sp2 + C2sp2 
C)  C2sp2 + C2sp2, and C2p + C2p 
D)  C2sp3 + C2sp3, and C2sp2 + C2sp2 
A)  C2sp3 + C2sp3, and C2p + C2p 
B)  C2sp2 + C2sp2, and C2sp2 + C2sp2 
C)  C2sp2 + C2sp2, and C2p + C2p 
D)  C2sp3 + C2sp3, and C2sp2 + C2sp2

Question 3

Circle and name the functional groups in the following molecule.

Accepted Answer

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

Question 4

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

Accepted Answer

A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$ 
A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$

Question 5

Which of the circled bonds is the strongest?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 6

Which of the following is/are tetrahedral?

Accepted Answer

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

Question 7

Which atomic orbitals overlap to form the carbon-hydrogen s bonding molecular orbitals of ethane, CH3CH3?

Accepted Answer

A)  C2p + H1s 
B)  C2sp + H1s 
C)  C2sp2 + H1s 
D)  C2sp3 + H1s 
A)  C2p + H1s 
B)  C2sp + H1s 
C)  C2sp2 + H1s 
D)  C2sp3 + H1s

Question 8

Which of the following elements has the highest electronegativity?

Accepted Answer

A)  C 
B)  P 
C)  Si 
D)  Cl 
A)  C 
B)  P 
C)  Si 
D)  Cl

Question 9

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

Accepted Answer

A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$ 
A)  90$\degree$ 
B)  109$\degree$ 
C)  120$\degree$ 
D)  180$\degree$

Question 10

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

Accepted Answer

Question 11

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 electons. Label each orbital with its hybridization.

Accepted Answer

Question 12

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

Accepted Answer

Question 13

Which of the following compounds is an alcohol?

Accepted Answer

A)  CH3CH2COOH 
B)  CH3CH2OCH3 
C)  CH3CH2CH2OH 
D)  CH3CH2CHO 
A)  CH3CH2COOH 
B)  CH3CH2OCH3 
C)  CH3CH2CH2OH 
D)  CH3CH2CHO

Question 14

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

Accepted Answer

Question 15

Which of the following statements is not true?

Accepted Answer

A)  The sp3C-H bond of an alkane is weaker than the spC-H bond of an alkyne. 
B)  The carbon-carbon triple bond of an alkyne is shorter than the carbon-carbon bond of alkenes. 
C)  The carbon-carbon triple bond of an alkene is exactly three times as strong as a carbon-carbon single bond of an alkane. 
D)  The sp3C-H bond of an alkane is longer than the spC-H bond of an alkyne. 
A)  The sp3C-H bond of an alkane is weaker than the spC-H bond of an alkyne. 
B)  The carbon-carbon triple bond of an alkyne is shorter than the carbon-carbon bond of alkenes. 
C)  The carbon-carbon triple bond of an alkene is exactly three times as strong as a carbon-carbon single bond of an alkane. 
D)  The sp3C-H bond of an alkane is longer than the spC-H bond of an alkyne.

Question 16

Rank the following in order of decreasing importance as a contributing resonance structure to the molecular structure of acetone, CH3COCH3 (more important > less important)

Accepted Answer

A)  1 > 2 > 3 
B)  1 > 3 > 2 
C)  2 > 1 > 3 
D)  3 > 1 > 2 
A)  1 > 2 > 3 
B)  1 > 3 > 2 
C)  2 > 1 > 3 
D)  3 > 1 > 2

Question 17

What is the approximate value of the length of the CºC bond in ethyne, HCºCH?

Accepted Answer

A)  121 pm 
B)  134 pm 
C)  142 pm 
D)  154 pm 
A)  121 pm 
B)  134 pm 
C)  142 pm 
D)  154 pm

Question 18

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

Accepted Answer

Question 19

Which of the following is a tertiary amine?

Accepted Answer

A)  CH3CH2N(CH3)2 
B)  (CH3)3CNH2 
C)  CH3CH2NHCH3 
D)  CH3CH2NHCH(CH3)2 
A)  CH3CH2N(CH3)2 
B)  (CH3)3CNH2 
C)  CH3CH2NHCH3 
D)  CH3CH2NHCH(CH3)2

Question 20

What is the molecular formula of aspartame, shown below?

Accepted Answer

The answer of What is the molecular formula of aspartame,...

Exam 1: Covalent Bonding and Shapes of Molecules

Convert the following structure into a bond-line drawing.

Which atomic orbitals overlap to form the carbon-carbon s and p bonding molecular orbitals of ethene, H2C=CH2?

Circle and name the functional groups in the following molecule.

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

Which of the circled bonds is the strongest?

Which of the following is/are tetrahedral?

Which atomic orbitals overlap to form the carbon-hydrogen s bonding molecular orbitals of ethane, CH3CH3?

Which of the following elements has the highest electronegativity?

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

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

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 electons. Label each orbital with its hybridization.

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

Which of the following compounds is an alcohol?

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

Which of the following statements is not true?

Rank the following in order of decreasing importance as a contributing resonance structure to the molecular structure of acetone, CH3COCH3 (more important > less important)

What is the approximate value of the length of the CºC bond in ethyne, HCºCH?

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

Which of the following is a tertiary amine?

What is the molecular formula of aspartame, shown below?

Alkanes and Cycloalkanes

Stereoisomerism and Chirality

Acids and Bases

Alkenes: Bonding, Nomenclature, and Properties

Reactions of Alkenes

Alkynes

Haloalkanes, Halogenation, and Radical Reactions

Nucleophilic Substitution and Beta-Elimination

Alcohols

Ethers, Epoxides, and Sulfides

Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Mass Spectrometry

An Introduction to Organometallic Compounds

Aldehydes and Ketones

Carboxylic Acids

Functional Derivatives of Carboxylic Acids

Enolate Anions and Enamines

Dienes, Conjugated Systems, and Pericyclic Reactions

Benzene and the Concept of Aromaticity

Reactions of Benzene and Its Derivatives

Filters

Which atomic orbitals overlap to form the carbon-carbon s and p bonding molecular orbitals of ethene, H₂C=CH₂?

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

Which atomic orbitals overlap to form the carbon-hydrogen s bonding molecular orbitals of ethane, CH₃CH₃?

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

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

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 electons. Label each orbital with its hybridization.

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

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

Rank the following in order of decreasing importance as a contributing resonance structure to the molecular structure of acetone, CH₃COCH₃ (more important > less important)

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