Question 1

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) B) and D)
F) None of the above

Question 2

Which of the following compounds is not a Lewis acid?

Accepted Answer

A)   AlCl3
B)   HCl
C)   H2O
D)   CBr4E) All of the above
F) C) and D)

Question 3

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.E) A) and D)
F) None of the above

Question 4

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-.E) B) and D)
F) B) and C)

Question 5

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.E) B) and D)
F) A) and C)

Question 6

Which of the following compounds is the strongest acid?

Accepted Answer

A)   CH3OH
B)   BrCH2OH
C)   CH3NH2
D)   CH3ClE) A) and D)
F) None of the above

Question 7

Which is the conjugate base in the following reaction?  Θ:CH3+H2O?CH4HO⊖ I  II  IIII  IV \begin{array} { l } \Theta _ { : \mathrm { CH } _ { 3 } } &+&{  \mathrm { H } _ { 2 } O} &?&{\mathrm { CH } _ { 4 } }&\mathrm { HO } ^ { \ominus } \	ext { I } &&	ext { II } &&	ext { IIII } &	ext { IV } \\end{array}Θ:CH3​​ I ​+​H2​O II ​?​CH4​ IIII ​HO⊖ IV ​

Accepted Answer

A)   I
B)   II
C)   III
D)   IV E) A) and B)
F) A) and C)

Question 8

Which of the following is the strongest base?

Accepted Answer

A)   CH3COCH3
B)   CH3COOH
C)   NH3
D)   H2OE) None of the above
F) A) and B)

Exam 2: Acids and Bases

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

Correct Answer
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What is the electrophilic site in the following compounds?

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

Correct Answer
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Which of the following is the strongest base?

Correct Answer
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Which of the following statements about Lewis acids is true?

Correct Answer
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Which of the following compounds is the strongest acid?

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

Correct Answer
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Which of the following compounds is not a Lewis acid?

Correct Answer
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Exam 2: Acids and Bases

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

Correct AnswerverifiedShow Answer

What is the electrophilic site in the following compounds?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is the strongest base?

Correct AnswerverifiedShow Answer

Which of the following statements about Lewis acids is true?

Correct AnswerverifiedShow Answer

Which of the following compounds is the strongest acid?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following compounds is not a Lewis acid?

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

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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