Question 1

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

Accepted Answer

Question 2

Which of the following is a primary (1$\circ$) amine?

Accepted Answer

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

Question 3

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. C

Question 4

Overlap of the two atomic orbitals as shown could result in the formation of a $\pi$ bond.

Accepted Answer

A) True 
 B)False

Question 5

Convert the following structure into a bond-line drawing.

Accepted Answer

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

Question 6

Which of the following molecules has a molecular dipole moment?

Accepted Answer

A) H2O 
B) CO2 
C) HC$\equiv$CH 
D) Cl2 
A) H2O 
B) CO2 
C) HC$\equiv$CH 
D) Cl2

Question 7

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 8

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

Accepted Answer

Question 9

Which of the following resonance structures makes the largest contribution to the structure of [H2CCHO]-?

Accepted Answer

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

Question 10

Which of the following best represents an sp3 hybridized atomic orbital containing the lone pair of electrons of ammonia, NH3?

Accepted Answer

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

Question 11

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 12

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 13

Which of the following bonds is a polar covalent bond?

Accepted Answer

A) Na-Cl 
B) C-Cl 
C) C-H 
D) Cl-Cl 
A) Na-Cl 
B) C-Cl 
C) C-H 
D) Cl-Cl

Question 14

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

Accepted Answer

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

Question 15

Which of the following molecules has a molecular dipole moment?

Accepted Answer

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

Question 16

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 17

What is the molecular formula of aspartame, shown below?

Accepted Answer

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

Question 18

Which of the following bonds is a polar covalent bond?

Accepted Answer

A) Na-F 
B) C-H 
C) C-O 
D) Cl-Cl 
A) Na-F 
B) C-H 
C) C-O 
D) Cl-Cl

Question 19

Convert the following structure into a bond-line drawing.

Accepted Answer

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

Question 20

What is the molecular formula of Ritalin, shown below?

Accepted Answer

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

Exam 1: Covalent Bonding and Shapes of Molecules

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

Which of the following is a primary (1 ∘\circ∘ ) amine?

Which of the following statements is not true?

Overlap of the two atomic orbitals as shown could result in the formation of a π\piπ bond.

Convert the following structure into a bond-line drawing.

Which of the following molecules has a molecular dipole moment?

Which of the circled bonds is the strongest?

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

Which of the following resonance structures makes the largest contribution to the structure of [H2CCHO]-?

Which of the following best represents an sp3 hybridized atomic orbital containing the lone pair of electrons of ammonia, NH3?

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

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

Which of the following bonds is a polar covalent bond?

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

Which of the following molecules has a molecular dipole moment?

Which of the following is an ionic bond?

What is the molecular formula of aspartame, shown below?

Which of the following bonds is a polar covalent bond?

Convert the following structure into a bond-line drawing.

What is the molecular formula of Ritalin, 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

Amines

Catalytic Carbon-Carbon Bond Formation

Carbohydrates

Lipids

Amino Acids and Proteins

Nucleic Acids

Organic Polymer Chemistry

Filters

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

Which of the following is a primary (1^$\circ$) amine? $Which of the following is a primary (1<sup> \circ </sup>) amine?$

Overlap of the two atomic orbitals as shown could result in the formation of a $\pi$ bond. $Overlap of the two atomic orbitals as shown could result in the formation of a \pi bond.$ $Overlap of the two atomic orbitals as shown could result in the formation of a \pi bond.$

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

Which of the following resonance structures makes the largest contribution to the structure of [H₂CCHO]^-?

Which of the following best represents an sp³ hybridized atomic orbital containing the lone pair of electrons of ammonia, NH₃?

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