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What is/are the product(s) of the following acid-base mechanism? What is/are the product(s) of the following acid-base mechanism? A) B) C) D) E) None of these choices.


A) What is/are the product(s) of the following acid-base mechanism? A) B) C) D) E) None of these choices.
B) What is/are the product(s) of the following acid-base mechanism? A) B) C) D) E) None of these choices.
C) What is/are the product(s) of the following acid-base mechanism? A) B) C) D) E) None of these choices.
D) What is/are the product(s) of the following acid-base mechanism? A) B) C) D) E) None of these choices.
E) None of these choices.

F) A) and D)
G) B) and E)

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Rank the following hydrogen atoms from highest to lowest in acidity in the structure shown below. Rank the following hydrogen atoms from highest to lowest in acidity in the structure shown below. A) H<sub>a</sub><sub> </sub>> H<sub>b</sub><sub> </sub>> H<sub>c</sub><sub> </sub>> H<sub>d</sub> B) H<sub>a</sub><sub> </sub>> H<sub>c</sub><sub> </sub>> H<sub>d</sub><sub> </sub>> H<sub>b</sub> C) H<sub>c</sub><sub> </sub>> H<sub>d</sub><sub> </sub>> H<sub>a</sub><sub> </sub>> H<sub>b</sub> D) H<sub>d</sub><sub> </sub>> H<sub>a</sub><sub> </sub>> H<sub>c</sub><sub> </sub>> H<sub>b</sub> E) H<sub>c</sub><sub> </sub>> H<sub>a</sub><sub> </sub>> H<sub>d</sub><sub> </sub>> H<sub>b</sub>


A) Ha > Hb > Hc > Hd
B) Ha > Hc > Hd > Hb
C) Hc > Hd > Ha > Hb
D) Hd > Ha > Hc > Hb
E) Hc > Ha > Hd > Hb

F) B) and E)
G) A) and E)

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Rank the bold-faced hydrogens for the following compounds from most acidic to least acidic. Rank the bold-faced hydrogens for the following compounds from most acidic to least acidic. A) V > III > II > IV > I B) II > V > III > I > IV C) V > III > II > I > IV D) III > I > V > II > IV E) III > V > II > I > IV


A) V > III > II > IV > I
B) II > V > III > I > IV
C) V > III > II > I > IV
D) III > I > V > II > IV
E) III > V > II > I > IV

F) A) and B)
G) A) and D)

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Which base would not effectively deprotonate phenol (PhOH) ?


A) i-PrMgBr
B) NaHCO3
C) NaH
D) (i-Pr) 2NLi
E) t-BuOK

F) A) and E)
G) B) and E)

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Protons or other electron-deficient centers that seek out electron-rich molecules are known as ___.

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What is/are the product(s) of the following acid-base mechanism? What is/are the product(s) of the following acid-base mechanism? A) B) C) D) E) None of these choices.


A) What is/are the product(s) of the following acid-base mechanism? A) B) C) D) E) None of these choices.
B) What is/are the product(s) of the following acid-base mechanism? A) B) C) D) E) None of these choices.
C) What is/are the product(s) of the following acid-base mechanism? A) B) C) D) E) None of these choices.
D) What is/are the product(s) of the following acid-base mechanism? A) B) C) D) E) None of these choices.
E) None of these choices.

F) A) and C)
G) B) and C)

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For the following acid-base reaction,which statement is true taking Δ\Delta S into consideration? For the following acid-base reaction,which statement is true taking \Delta S into consideration? A) The reaction is an exothermic reaction and \Delta S is positive. B) The reaction is an exothermic reaction and \Delta S is negative. C) The reaction is an endothermic reaction and \Delta S is positive. D) The reaction is an endothermic reaction and \Delta S is approximately zero. E) None of these choices.


A) The reaction is an exothermic reaction and Δ\Delta S is positive.
B) The reaction is an exothermic reaction and Δ\Delta S is negative.
C) The reaction is an endothermic reaction and Δ\Delta S is positive.
D) The reaction is an endothermic reaction and Δ\Delta S is approximately zero.
E) None of these choices.

F) D) and E)
G) C) and E)

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What does the reaction between the following two species produce? What does the reaction between the following two species produce? A) B) C) D) E) No reaction


A) What does the reaction between the following two species produce? A) B) C) D) E) No reaction
B) What does the reaction between the following two species produce? A) B) C) D) E) No reaction
C) What does the reaction between the following two species produce? A) B) C) D) E) No reaction
D) What does the reaction between the following two species produce? A) B) C) D) E) No reaction
E) No reaction

F) A) and C)
G) A) and D)

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Adding sodium hydride to ethanol would produce:


A) CH3CH2OCH2CH3 + H2
B) CH3CH2OCH2CH3 + NaOH
C) CH3CH2ONa + H2
D) CH3CH2Na + NaOH
E) CH3CH3 + NaOH

F) A) and E)
G) A) and B)

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Which might be used as a protic solvent?


A) Which might be used as a protic solvent? A) B) C) D) E)
B) Which might be used as a protic solvent? A) B) C) D) E)
C) Which might be used as a protic solvent? A) B) C) D) E)
D) Which might be used as a protic solvent? A) B) C) D) E)
E) Which might be used as a protic solvent? A) B) C) D) E)

F) B) and D)
G) A) and E)

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Which of these phosphorus-based acids is diprotic?


A) Which of these phosphorus-based acids is diprotic? A) B) C) D) E)
B) Which of these phosphorus-based acids is diprotic? A) B) C) D) E)
C) Which of these phosphorus-based acids is diprotic? A) B) C) D) E)
D) Which of these phosphorus-based acids is diprotic? A) B) C) D) E)
E) Which of these phosphorus-based acids is diprotic? A) B) C) D) E)

F) B) and E)
G) C) and D)

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Rank the bold-faced hydrogens for the following compounds from most acidic to least acidic. Rank the bold-faced hydrogens for the following compounds from most acidic to least acidic. A) III > IV > I > V > II B) II > III > V > IV > I C) II > V > III > IV > I D) V > III > II > IV > I E) III > I > IV > V > II


A) III > IV > I > V > II
B) II > III > V > IV > I
C) II > V > III > IV > I
D) V > III > II > IV > I
E) III > I > IV > V > II

F) All of the above
G) A) and E)

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Rank the bold-faced hydrogens for the following compounds from most acidic to least acidic. Rank the bold-faced hydrogens for the following compounds from most acidic to least acidic. A) II > IV > V > III > I B) IV > II > III > V > I C) V > III > IV > II > I D) II > IV > III > V > I E) IV > II > I > V > III


A) II > IV > V > III > I
B) IV > II > III > V > I
C) V > III > IV > II > I
D) II > IV > III > V > I
E) IV > II > I > V > III

F) A) and D)
G) None of the above

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Which of the following is an untrue statement?


A) The % dissociation of a weak acid increases with increasing dilution of the acid solution.
B) The stronger an acid,the weaker its conjugate base.
C) The larger the value of Ka for an acid,the smaller the value of its pKa.
D) Comparison of the acidity of strong acids in solution requires the use of a solvent less basic than water.
E) The stronger the acid,the more positive the value of Δ\Delta Gº for the dissociation.

F) B) and C)
G) A) and E)

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In the reaction,Na+NH2- + CH3OH →\to CH3O-Na+ + NH3,the stronger base is:


A) NaNH2
B) CH3OH
C) CH3ONa
D) NH3
E) This is not an acid-base reaction.

F) B) and D)
G) A) and C)

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Carboxylic acids have conjugate bases that are resonance stabilized,which typically makes them much more acidic than alcohols.

A) True
B) False

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It is impossible to have pKa values of organic acids that are negative.

A) True
B) False

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For the simple hydrides,MHn,pKa values decrease in the order:


A) CH4 > NH3 > H2O > H2S > HBr
B) HBr > H2S > H2O > NH3 > CH4
C) HBr > H2O > NH3 > H2S > CH4
D) NH3 > H2S > CH4 > H2O > HBr
E) H2S > H2O > HBr > NH3 > CH4

F) A) and C)
G) C) and D)

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This species is a carbon-based Lewis acid:


A) CH4
B) HCCl3
C) CH3+
D) :CH3-
E) ·CH3

F) A) and E)
G) All of the above

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Adding sodium amide (NaNH2) to 1-butyne (CH3CH2C≡CH) would produce:


A) CH3CH2C≡CNa + NH3
B) CH3CH2C≡C-C≡CH2CH3 + NaH + NH3
C) CH3CH2C≡CNH2 + NaH
D) NaCH2CH2C≡CH + NH3
E) CH3CH(Na) C≡CH + NH3

F) A) and E)
G) D) and E)

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