Question 1

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

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  8 
A)  1 
B)  2 
C)  4 
D)  8

Question 2

Convert the following structure into a bond-line drawing.

Accepted Answer

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

Question 3

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° 
A)  90° 
B)  109° 
C)  120° 
D)  180°

Question 4

The following molecule contains an _____________functional group.   ​

Accepted Answer

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

Question 5

Which of the following compounds is a carboxylic acid?

Accepted Answer

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

Question 6

The formal charge on carbon in carbon monoxide is______.

Accepted Answer

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

Question 7

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

Accepted Answer

A)  1s22s22p63s1 
B)  1s22s22p53s1 
C)  1s22s22p6 
D)  1s22s22p63s2 
A)  1s22s22p63s1 
B)  1s22s22p53s1 
C)  1s22s22p6 
D)  1s22s22p63s2

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

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° 
A)  90° 
B)  109° 
C)  120° 
D)  180°

Question 10

Which of the following is an ionic bond?

Accepted Answer

A)  Br−Br 
B)  C−Cl 
C)  C−S 
D)  Na−O 
A)  Br−Br 
B)  C−Cl 
C)  C−S 
D)  Na−O

Question 11

Circle and name the functional groups in the following molecule.

Accepted Answer

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

Question 12

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

Accepted Answer

Question 13

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

Accepted Answer

Question 14

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 electrons 
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 electrons

Question 15

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

Question 16

Which of the following bonds has the smallest dipole moment?

Accepted Answer

A)  Li−Cl 
B)  C−H 
C)  O−H 
D)  H−Cl 
A)  Li−Cl 
B)  C−H 
C)  O−H 
D)  H−Cl

Question 17

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 18

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

Accepted Answer

A) True 
 B)False

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)  8 
A)  4 
B)  5 
C)  6 
D)  8

Question 20

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, H2O 
A)  molecular hydrogen, H2 
B)  hydroxide anion, HO− 
C)  boron trifluoride, BF3 
D)  water, H2O

Exam 1: Covalent Bonding and Shapes of Molecules

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

Convert the following structure into a bond-line drawing.

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

The following molecule contains an _____________functional group. ​

Which of the following compounds is a carboxylic acid?

The formal charge on carbon in carbon monoxide is______.

What is the ground-state electronic configuration of a sodium cation (sodium: atomic number 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 electrons. Label each orbital with its hybridization.

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

Which of the following is an ionic bond?

Circle and name the functional groups in the following molecule.

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

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

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

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

Which of the following bonds has the smallest dipole moment?

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

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

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

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

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

Amines

Catalytic Carbon-Carbon Bond Formation

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids

Organic Polymer Chemistry

Filters

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

The following molecule contains an _____________functional group.

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.

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 tertiary (3°) amines that have the formula C₅H₁₁N.

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

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