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Multiple Choice Quiz



1

In the following equilibrium where HX is a stronger acid than HY, predict the position of the equilibrium.
NaY + HX <a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/doublearrow.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (8.0K)</a> NaX + HY
A)The equilibrium favors the weakest acid and the strongest base.
B)The equilibrium favors the weakest acid and the weakest base.
C)The equilibrium favors the strongest acid and the strongest base.
D)The equilibrium favors the strongest acid and the weakest base.
2

In the following equilibrium where HX is a stronger acid than HY. Predict the value of the equilibrium constant K for the reaction.
NaX + HY <a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/doublearrow.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (8.0K)</a> NaY + HX
A)K > 1
B)K < 1
C)K = 0
D)K = 10
3

What is the product of the following reaction?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_3_eq.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>
A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_3_A.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (13.0K)</a>
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_3_B.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>
C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_3_C.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (10.0K)</a>
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_3_D.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>
4

Which of the following compounds can behave as an ACID as well as a BASE?
A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_4_A.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_4_B.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>
C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_4_C.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (10.0K)</a>
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_4_D.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (10.0K)</a>
5

Which molecule or ion plays the role of acid in the following reaction?
HNO3 + H2SO4 → HSO4– + H2NO3+
A)HNO3
B)H2SO4
C)HSO4–
D)H2NO3+
6

What are the product(s) of the following acid–base reaction?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_7_eq.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>
A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_7_A.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (12.0K)</a>
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_7_B.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (12.0K)</a>
C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_7_C.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (12.0K)</a>
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_7_D.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (12.0K)</a>
7

Using pKa values from the table, which is the strongest acid (HA is any acid).
pKaHA
3.7 HCOOH
4.2C6H5COOH
4.75CH3COOH
15.5 CH3OH
A)Acetic acid
B)Benzoic acid
C)Methanol
D)Formic acid
8

Which is the strongest base? Use the table.
pKaHA
15.7H2O
50CH4
18(CH3)3COH
35NH3
A)Sodium hydroxide
B)Methyllithium
C)Sodium amide
D)Potassium tert-butoxide
9

Which of the following acids has the lower pKa value?
A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_9_A.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (12.0K)</a>
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_9_B.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (12.0K)</a>
C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_9_C.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (13.0K)</a>
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_9_D.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (13.0K)</a>
10

The approximate pKa values for the protonated forms of the below compounds are shown. Arrange them in the order of increasing basicity (that is, least basic first and most basic last).
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/ch02_10.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>
A)c e b a d
B)c b e d a
C)c d e a b
D)a d e b c
11

Acetic acid, CH3COOH, is
A)stronger than HCl.
B)weaker than HCl.
C)has 4 acidic protons.
D)is comparable in strength to HCl.
12

Which of the following statements is NOT correct concerning pKa’s and acidity and basicity?
A)A higher pKa value means the acid is less acidic.
B)A lower pKa value for the acid means the conjugate base is more basic.
C)In an acid–base reaction, the equilibrium lies on the side of the acid with the higher pKa.
D)An acid–base reaction will proceed in the direction toward the weaker base.
13

The pKa of phenol is 10. Which of the following bases will deprotonate phenol completely?
NaNH2 (pKa of NH3 = 35)
NaOH (pKa of H2O = 16)
NH3 (pKa of NH4+ = 10)
NaOCOCH3 (pKa of HOCOCH3 = 5)
A)NaNH2 only
B)NH3 only
C)NaNH2 and NaOH
D)NH3 and NaOCOCH3
14

Predict the favorable direction of the two acid–base equilibria shown below.
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_15_eq.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (17.0K)</a>
A)Equilibrium A: right; equilibrium B: right.
B)Equilibrium A: left; equilibrium B: left.
C)Equilibrium A: right; equilibrium B: left.
D)Equilibrium A: left; equilibrium B: right.
15

Which compound has the least acidic hydrogen?
A)acetylene
B)ethylene
C)ethane
D)allene
16

Which is the weakest base?
A)–CH3
B)–F
C)–NH2
D)–OH
17

Rank the following compounds in order from most basic to least basic.
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/2_18_eq.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (18.0K)</a>
A)2 > 3 > 4 > 1
B)4 > 3 > 1 > 2
C)3 > 1 > 2 > 4
D)1 > 4 > 3 > 2
18

Rank the following compounds in order from most acidic to least acidic.
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072397462/209330/ch02_18.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (4.0K)</a>
A)c > d > a > b
B)d> a > b > c
C)b > a > d > c
D)a > b > d > c
19

Which is the weakest acid?
A)ethane, C2H6
B)ethyne, C2H2
C)ethanol, C2H5OH
D)ethylene, C2H4
20

Which is the strongest base?
A)NH3
B)BH3
C)PH3
D)H2O
21

Which is the strongest base?
A)LiOH
B)CH3Li
C)LiNH2
D)LiF
22

Which is the strongest Lewis acid?
A)BF3
B)BH3
C)BCl3
D)BBr3
23

Rank the following acids in order from most acidic to least acidic.
CH3COOHH2ONH3HCl
A)HCl> H2O > CH3COOH > NH3
B)CH3COOH >HCl > H2O > NH3
C)HCl > CH3COOH > H2O > NH3
D)H2O > NH3> HCl > CH3COOH
24

Rank the following bases in order from most basic to least basic.
LiFLiOHLiNH2CH3Li
A)CH3Li > LiOH > LiNH2> LiF
B)LiOH > CH3Li > LiF > LiNH2
C)CH3Li > LiNH2> LiOH > LiF
D)LiNH2> LiOH > LiF > CH3Li
25

NaNH2 can deprotonate HC≡CH but not CH2=CH2. Use this observation and the hybridization effect to order the following four acids from most acidic to least acidic.
HC≡CHCH2=CH2CH3-CH3NH3
A)NH3 > CH3–CH3> CH2=CH2 > HC≡CH
B)CH3–CH3> CH2=CH2 > NH3 > HC≡CH
C)HC≡CH > NH3 > CH2=CH2 > CH3–CH3
D)CH3–CH3 > NH3 > CH2=CH2 > HC≡CH





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