Question 1

Which of the following species possesses a formal charge?

Accepted Answer

A)  BH3 
B)  BH4 
C)  CCl4 
D)  H2S 
A)  BH3 
B)  BH4 
C)  CCl4 
D)  H2S B

Question 2

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

Accepted Answer

Question 3

Which of the following is an ester?

Accepted Answer

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

Question 4

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

Accepted Answer

A)  All resonance structures must have the same number of electrons 
B)  Each atom in all of the resonance structures must have a complete shell of valence electrons 
C)  All resonance structures must have the same arrangement of atoms 
D)  All resonance structures must be valid Lewis structures 
A)  All resonance structures must have the same number of electrons 
B)  Each atom in all of the resonance structures must have a complete shell of valence electrons 
C)  All resonance structures must have the same arrangement of atoms 
D)  All resonance structures must be valid Lewis structures

Question 5

What is the ground-state electronic configuration of a fluoride anion (fluorine: atomic number 9)?

Accepted Answer

A)  1s22s22p2 
B)  1s22s22p5 
C)  1s22s22p6 
D)  1s22s22p7 
A)  1s22s22p2 
B)  1s22s22p5 
C)  1s22s22p6 
D)  1s22s22p7

Question 6

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethene (ethylene, H2C=CH2). Label each bond (e.g., C-H s bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp3 + H 1s).

Accepted Answer

Question 7

Which of the following is a primary amine?

Accepted Answer

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

Question 8

Draw bond-line structures of all of the tertiary (3$\degree$) alcohols that have the formula C6H14O.

Accepted Answer

Question 9

Which of the following is a primary (1$\degree$) alcohol?

Accepted Answer

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

Question 10

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

Question 11

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 2sp3 
A)  C 2sp3 + O 2sp2 
B)  C 2sp2 + O 2p 
C)  C 2sp2 + O 2sp2 
D)  C 2sp3 + O 2sp3

Question 12

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 13

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)  7 
A)  4 
B)  5 
C)  6 
D)  7

Question 14

Which of the following molecules has a molecular dipole?

Accepted Answer

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

Question 15

Which of the following bonds is the most polar?

Accepted Answer

A)  F-F 
B)  H-F 
C)  C-H 
D)  C-Si 
A)  F-F 
B)  H-F 
C)  C-H 
D)  C-Si

Question 16

Which of the following is an ionic bond?

Accepted Answer

A)  F-F 
B)  C-H 
C)  Li-O 
D)  C-N 
A)  F-F 
B)  C-H 
C)  Li-O 
D)  C-N

Question 17

What is the ground-state electronic configuration of a fluorine atom (fluorine: atomic number 9)?

Accepted Answer

A)  1s12s12p7 
B)  1s22s22p5 
C)  1s22s22p6 
D)  1s02s22p7 
A)  1s12s12p7 
B)  1s22s22p5 
C)  1s22s22p6 
D)  1s02s22p7

Question 18

How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH3-?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
A)  2 
B)  4 
C)  6 
D)  8

Question 19

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

Accepted Answer

A)  molecular bromine, Br2 
B)  fluoride anion, F- 
C)  ammonia, NH3 
D)  aluminum trichloride, AlCl3 
A)  molecular bromine, Br2 
B)  fluoride anion, F- 
C)  ammonia, NH3 
D)  aluminum trichloride, AlCl3

Question 20

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

Exam 1: Covalent Bonding and Shapes of Molecules

Which of the following species possesses a formal charge?

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

Which of the following is an ester?

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

What is the ground-state electronic configuration of a fluoride anion (fluorine: atomic number 9)?

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethene (ethylene, H2C=CH2). Label each bond (e.g., C-H s bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp3 + H 1s).

Which of the following is a primary amine?

Draw bond-line structures of all of the tertiary (3 °\degree° ) alcohols that have the formula C6H14O.

Which of the following is a primary (1 °\degree° ) alcohol?

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

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

Which of the following compounds is a carboxylic acid?

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

Which of the following molecules has a molecular dipole?

Which of the following bonds is the most polar?

Which of the following is an ionic bond?

What is the ground-state electronic configuration of a fluorine atom (fluorine: atomic number 9)?

How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH3-?

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

Which of the following bonds has the smallest dipole moment?

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

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

Provide a neatly drawn figure to show the atomic orbitals that overlap to form each of the bonds in ethene (ethylene, H₂C=CH₂). Label each bond (e.g., C-H s bond) and indicate which atomic orbitals contribute to this bond (e.g., C 2sp³ + H 1s).

Draw bond-line structures of all of the tertiary (3 $\degree$ ) alcohols that have the formula C₆H₁₄O.

Which of the following is a primary (1 $\degree$ ) alcohol? $Which of the following is a primary (1 \degree ) alcohol?$

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

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

How many electrons are there in the valence shell of the carbon atom of the methyl anion, CH₃^-?