Question 1

Rank the following conjugate bases in order of decreasing basicity,putting the most basic first.  I > III B) I > II > III C) III > I > II D) III > II > I" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  II > I > III
B)  I > II > III
C)  III > I > II
D)  III > II > IE) A) and D)
F) C) and D) C

Question 2

Which of the following is the strongest base?

Accepted Answer

A)  CH3COCH3
B)  CH3COOH
C)  NH3
D)  H2OE) A) and B)
F) A) and C)

Question 3

What is the conjugate base of HSO4-? SO42- H2SO4 SO3 H2O
I II III IV

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) All of the above
F) A) and D)

Question 4

What are the products of the following proton transfer reaction?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) All of the above
F) B) and C)

Question 5

Which of the following compounds is the strongest acid?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) All of the above
F) C) and D)

Question 6

What is the nucleophilic site in the following compounds?

Accepted Answer

A)  I = Hydrogen; II = π electrons in bond; III = nitrogen.
B)  I = Oxygen; II = carbon; III = nitrogen.
C)  I = Hydrogen; II = carbon; III = carbon.
D)  I = Oxygen; II = π electrons in bond; III = nitrogen.E) B) and C)
F) A) and B)

Question 7

Which of the following will proceed as written?

Accepted Answer

A)  CH3ONa + HCl → CH3OH + NaCl
B)  CH3OH + NaCl → NaOEt + HCl
C)  CH3OH + H2O → CH3O- + H3O+
D)  CH3OH + NH3 → CH3O- + NH4±E) A) and B)
F) A) and C)

Question 8

What is the role of methylchloride (CH3Cl) in the following reaction? 3Cl) in the following reaction?   A) Lewis acid B) Lewis base C) Brønsted-Lowry acid D) Brønsted-Lowry base" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  Lewis acid
B)  Lewis base
C)  Brønsted-Lowry acid
D)  Brønsted-Lowry baseE) B) and C)
F) None of the above B

Question 9

Identify the Lewis base in the following reaction.

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) None of the above
F) B) and C)

Question 10

Which of the following compounds is both a Brønsted-Lowry acid and base?

Accepted Answer

A)  I,II
B)  I,III
C)  II,IV
D)  I,IVE) A) and C)
F) B) and C)

Question 11

What is the correct classification of the following compound? CH3-O-CH3

Accepted Answer

A)  Brønsted-Lowry acid and Lewis acid
B)  Brønsted-Lowry base and Lewis base
C)  Brønsted-Lowry base
D)  Lewis baseE) B) and C)
F) A) and D)

Question 12

Which of the following compounds is the weakest acid?

Accepted Answer

A)  H2S
B)  PH3
C)  HCl
D)  SiH4E) C) and D)
F) B) and D)

Question 13

What is the direction of equilibrium when acetylene (C2H2) reacts with H2N- in an acid-base reaction? 2H2) reacts with H2N- in an acid-base reaction?   A) Left B) Right C) Neither D) Cannot be determined" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  Left
B)  Right
C)  Neither
D)  Cannot be determinedE) A) and B)
F) A) and C) B

Question 14

Which of the following is a Lewis acid but not a Brønsted-Lowry acid?

Accepted Answer

A)  CH3OH
B)  H2O
C)  CH3COOH
D)  BF3E) None of the above
F) All of the above

Question 15

Which of the following compounds is the strongest acid?

Accepted Answer

A)  CH3OH
B)  BrCH2OH
C)  CH3NH2
D)  CH3ClE) A) and B)
F) All of the above

Question 16

Which is the conjugate acid in the following reaction?

Accepted Answer

A)  I
B)  II
C)  III
D)  IVE) B) and D)
F) C) and D)

Question 17

What is the correct rank of the following compounds in order of increasing acidity?  II > III > IV B) IV > III > II > I C) IV > I > II > III D) III > I > IV > II" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  I > II > III > IV
B)  IV > III > II > I
C)  IV > I > II > III
D)  III > I > IV > IIE) A) and B)
F) A) and C)

Question 18

Identify the base/conjugate base (in that order) in the following reaction:

Accepted Answer

A)  I,III
B)  I,IV
C)  II,III
D)  II,IVE) A) and C)
F) None of the above

Question 19

Which of the following species cannot act as both a Brønsted-Lowry acid and base?

Accepted Answer

A)  HCO3-
B)  HSO4-
C)  HO-
D)  H2PO4-E) A) and D)
F) All of the above

Question 20

Rank the following compounds in order of decreasing acidity,putting the most acidic first.  II > III > I B) IV > III > II > I C) III > IV > II > I D) III > IV > I > II" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  IV > II > III > I
B)  IV > III > II > I
C)  III > IV > II > I
D)  III > IV > I > IIE) A) and B)
F) All of the above

Exam 2: Acids and Bases

Rank the following conjugate bases in order of decreasing basicity,putting the most basic first.

Correct AnswerverifiedC

Which of the following is the strongest base?

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What is the conjugate base of HSO4-? SO42- H2SO4 SO3 H2O I II III IV

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What are the products of the following proton transfer reaction?

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Which of the following compounds is the strongest acid?

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What is the nucleophilic site in the following compounds?

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Which of the following will proceed as written?

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What is the role of methylchloride (CH3Cl) in the following reaction?

Correct AnswerverifiedB

Identify the Lewis base in the following reaction.

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Which of the following compounds is both a Brønsted-Lowry acid and base?

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What is the correct classification of the following compound? CH3-O-CH3

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Which of the following compounds is the weakest acid?

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

Correct AnswerverifiedB

Which of the following is a Lewis acid but not a Brønsted-Lowry acid?

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Which of the following compounds is the strongest acid?

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Which is the conjugate acid in the following reaction?

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What is the correct rank of the following compounds in order of increasing acidity?

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Identify the base/conjugate base (in that order) in the following reaction:

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Which of the following species cannot act as both a Brønsted-Lowry acid and base?

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Rank the following compounds in order of decreasing acidity,putting the most acidic first.

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C

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What is the conjugate base of HSO₄^-? SO₄^2- H₂SO₄ SO₃ H₂O I II III IV

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What is the role of methylchloride (CH₃Cl) in the following reaction?

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B

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What is the correct classification of the following compound? CH₃-O-CH₃

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

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B

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