Question 1

Which of the following is the strongest base?

Accepted Answer

A)  CH3COCH3 
B)  CH3COOH 
C)  NH3 
D)  H2O 
A)  CH3COCH3 
B)  CH3COOH 
C)  NH3 
D)  H2O

Question 2

Which of the following statements explain why HBr is a stronger acid than HF?

Accepted Answer

A)  Br- is more stable than F- because Br- is larger than F-. 
B)  Br- is less stable than F- because Br- is larger than F-. 
C)  Br- is more stable than F- because Br- is less electronegative than F-. 
D)  Br- is less stable than F- because Br- is less electronegative than F-. 
A)  Br- is more stable than F- because Br- is larger than F-. 
B)  Br- is less stable than F- because Br- is larger than F-. 
C)  Br- is more stable than F- because Br- is less electronegative than F-. 
D)  Br- is less stable than F- because Br- is less electronegative than F-.

Question 3

Which of the following compounds is not a Lewis acid?

Accepted Answer

A)  AlCl3 
B)  HCl 
C)  H2O 
D)  CBr4 
A)  AlCl3 
B)  HCl 
C)  H2O 
D)  CBr4

Question 4

What is the electrophilic site in the following compounds?

Accepted Answer

A)  I = Carbon; II = carbon; III = boron. 
B)  I = Chlorine; II = carbon; III = boron. 
C)  I = Carbon; II = oxygen; III = boron. 
D)  I = Carbon; II = carbon; III = fluorine. 
A)  I = Carbon; II = carbon; III = boron. 
B)  I = Chlorine; II = carbon; III = boron. 
C)  I = Carbon; II = oxygen; III = boron. 
D)  I = Carbon; II = carbon; III = fluorine.

Question 5

What is the direction of equilibrium when acetylene (C2H2) reacts with H2N- in an acid-base reaction?

Accepted Answer

A)  Left 
B)  Right 
C)  Neither 
D)  Cannot be determined 
A)  Left 
B)  Right 
C)  Neither 
D)  Cannot be determined

Question 6

Which is the conjugate base in the following reaction? $$\begin{array} { l } 
\Theta _ { : \mathrm { CH } _ { 3 } } &+&{  \mathrm { H } _ { 2 } O} &?&{\mathrm { CH } _ { 4 } }&\mathrm { HO } ^ { \ominus } \
\text { I } &&\text { II } &&\text { IIII } &\text { IV } \
\end{array}$$

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
A)  I 
B)  II 
C)  III 
D)  IV

Question 7

Which of the following compounds is the strongest acid?

Accepted Answer

A)  CH3OH 
B)  BrCH2OH 
C)  CH3NH2 
D)  CH3Cl 
A)  CH3OH 
B)  BrCH2OH 
C)  CH3NH2 
D)  CH3Cl

Question 8

Which of the following statements about Lewis acids is true?

Accepted Answer

A)  Lewis acids are proton donors. 
B)  Lewis acids are proton acceptors. 
C)  Lewis acids are electron pair donors. 
D)  Lewis acids are electron pair acceptors. 
A)  Lewis acids are proton donors. 
B)  Lewis acids are proton acceptors. 
C)  Lewis acids are electron pair donors. 
D)  Lewis acids are electron pair acceptors.

Which of the following is the strongest base?

Which of the following statements explain why HBr is a stronger acid than HF?

Which of the following compounds is not a Lewis acid?

What is the electrophilic site in the following compounds?

What is the direction of equilibrium when acetylene (C₂H₂) reacts with H₂N^- in an acid-base reaction?

Which is the conjugate base in the following reaction? + O ? I II IIII IV

Which of the following compounds is the strongest acid?

Which of the following statements about Lewis acids is true?

Structure and Bonding

Introduction to Organic Molecules and Functional Groups

Alkanes

Stereochemistry

Understanding Organic Reactions

Alkyl Halides and Nucleophilic Substitution

Alkyl Halides and Elimination Reactions

Alcohols, Ethers and Epoxides

Alkenes

Alkynes

Oxidation and Reduction

Mass Spectrometry and Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Radical Reactions

Conjugation, Resonance, and Dienes

Benzene and Aromatic Compounds

Electrophilic Aromatic Substitution

Carboxylic Acids and the Acidity of the O-H Bond

Introduction to Carbonyl Chemistry; Organometallic Reagents; Oxidation and Reduction

Aldehydes and Ketones Nucleophilic Addition

Carboxylic Acids and Derivatives

Substitution Reactions of Carbonyl Compounds at the Alpha-Carbon

Carbonyl Condensation Reactions

Amines

Carbon-Carbon Bond Forming Reactions in Organic Synthesis

Pericyclic Reactions

Carbohydrates

Amino Acids and Proteins

Lipids

Synthetic Polymers

Filters

Exam 2: Acids and Bases

Which of the following is the strongest base?

Which of the following statements explain why HBr is a stronger acid than HF?

Which of the following compounds is not a Lewis acid?

What is the electrophilic site in the following compounds?

What is the direction of equilibrium when acetylene (C2H2) reacts with H2N- in an acid-base reaction?

Which is the conjugate base in the following reaction? + O ? I II IIII IV

Which of the following compounds is the strongest acid?

Which of the following statements about Lewis acids is true?

Structure and Bonding

Introduction to Organic Molecules and Functional Groups

Alkanes

Stereochemistry

Understanding Organic Reactions

Alkyl Halides and Nucleophilic Substitution

Alkyl Halides and Elimination Reactions

Alcohols, Ethers and Epoxides

Alkenes

Alkynes

Oxidation and Reduction

Mass Spectrometry and Infrared Spectroscopy

Nuclear Magnetic Resonance Spectroscopy

Radical Reactions

Conjugation, Resonance, and Dienes

Benzene and Aromatic Compounds

Electrophilic Aromatic Substitution

Carboxylic Acids and the Acidity of the O-H Bond

Introduction to Carbonyl Chemistry; Organometallic Reagents; Oxidation and Reduction

Aldehydes and Ketones Nucleophilic Addition

Carboxylic Acids and Derivatives

Substitution Reactions of Carbonyl Compounds at the Alpha-Carbon

Carbonyl Condensation Reactions

Amines

Carbon-Carbon Bond Forming Reactions in Organic Synthesis

Pericyclic Reactions

Carbohydrates

Amino Acids and Proteins

Lipids

Synthetic Polymers

Filters

What is the direction of equilibrium when acetylene (C₂H₂) reacts with H₂N^- in an acid-base reaction?