ORGANIC CHEMISTRY 7TH EDITION BY BROWN – TEST BANK
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ORGANIC CHEMISTRY 7TH EDITION BY BROWN – TEST BANK
CHAPTER 4—ACIDS AND BASES
MULTIPLE CHOICE
1.The pKa of HCl is −7. What is the value of the equilibrium constant, Keq, for the following equilibrium? [The concentration of water in a dilute aqueous solution is 55 M]
| a. | 1.8 ◊ 105 |
| b. | 385 |
| c. | 1.8 ◊ 10−5 |
| d. | −1.8 ◊ 105 |
ANS:A
2.The pKa of acetic acid, CH3COOH, is 4.76. What is the value of the equilibrium constant Keq, for the following equilibrium? [The concentration of water in a dilute aqueous solution is 55 M]
| a. | 3.2 ◊ 107 |
| b. | −3.2 ◊ 10−7 |
| c. | −3.2 ◊ 107 |
| d. | 3.2 ◊ 10−7 |
ANS:D
3.Which of the following is the correct order of decreasing basicity (stronger base > weaker base)?
| a. | NH3 > MeNH2 > H2O > HF |
| b. | MeNH2 > NH3 > MeOH > CH4 |
| c. | NH3 > Me3N > H2O > MeOH |
| d. | CH3COONa > NaOH > NaOMe > NaNMe2 |
ANS:B
4.Which of the following is the strongest acid?
| a. | CH3CH3 |
| b. | CH3NH2 |
| c. | CH3OH |
| d. | CH3F |
ANS:C
5.Which of the following is the strongest acid?
| a. | HCl |
| b. | HI |
| c. | HF |
| d. | HBr |
ANS:B
6.Which of the following is easiest to deprotonate?
| a. | CH4 |
| b. | CH3CH3 |
| c. | CH2=CH2 |
| d. | HC≡CH |
ANS:D
7.Which of the following is the strongest acid?
| a. | CH3OH |
| b. | CH3CHO |
| c. | CH3COCH3 |
| d. | CH3COOH |
ANS:D
8. Which of the following is the strongest acid?
| a. | CH3NH2 |
| b. | CH3PH2 |
| c. | CH3OH |
| d. | CH3SH |
ANS:D
9. Which of the following compounds is the strongest acid?
| a. | HF |
| b. | H2O |
| c. | NH3 |
| d. | CH4 |
ANS: A
10. Which of the following compounds is the strongest acid?
| a. | CH3OCH3 |
| b. | CH3CH2OH |
| c. | CH3CHO |
| d. | CH3CO2H |
ANS:D
11.Which of the following compounds is the strongest acid?
| a. | CH3COOH |
| b. | ClCH2COOH |
| c. | CH3CH2OH |
| d. | ClCH2CH2OH |
ANS:B
12.Which of the following compounds is the strongest acid?
| a. | CH3COOH |
| b. | FCH2COOH |
| c. | ClCH2COOH |
| d. | BrCH2COOH |
ANS:B
13.Which of the following compounds is the strongest acid?
| a. | CH4 |
| b. | CH3CH3 |
| c. | H2C=CH2 |
| d. | HC≡CH |
ANS:D
14.Which of the following compounds is the strongest acid?
| a. | CF3OH |
| b. | CF3CH2 CH2OH |
| c. | CF3CH2 CH2 CH2OH |
| d. | CF3CH2 CH2 CH2CH2OH |
ANS:A
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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- Abitur parturient praesent lectus quam a natoque adipiscing a vestibulum hendre.
- Diam parturient dictumst parturient scelerisque nibh lectus.
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