 |
1 | |
Which functional group is present in the following molecule?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/4_1.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) | An acid |
| | B) | An aldehyde |
| | C) | An amide |
| | D) | An ester |
| | E) | A ketone |
| | F) | A nitrile (or cyano) |
|
|
2 | |
Which functional group is present in the following molecule?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/4_2.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>]]> |
| | A) | An acid |
| | B) | An aldehyde |
| | C) | An amide |
| | D) | An ester |
| | E) | A ketone |
| | F) | A nitrile (or cyano) |
|
|
3 | |
Which functional group is present in the following molecule?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/4_3.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>]]> |
| | A) | An acid |
| | B) | An aldehyde |
| | C) | An amide |
| | D) | An ester |
| | E) | A ketone |
| | F) | A nitrile (or cyano) |
|
|
4 | |
Which functional group is present in the following molecule?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/4_4.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) | An acid |
| | B) | An aldehyde |
| | C) | An amide |
| | D) | An ester |
| | E) | A ketone |
| | F) | A nitrile (or cyano) |
|
|
5 | |
Which functional group is present in the following molecule?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/4_5.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) | An acid |
| | B) | An aldehyde |
| | C) | An amide |
| | D) | An ester |
| | E) | A ketone |
| | F) | A nitrile (or cyano) |
|
|
6 | |
Which functional group is present in the following molecule?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/4_6.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>]]> |
| | A) | An acid |
| | B) | An aldehyde |
| | C) | An amide |
| | D) | An ester |
| | E) | A ketone |
| | F) | A nitrile (or cyano) |
|
|
7 | |
What type of alcohol is this?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/4_7.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) | Primary (1o). |
| | B) | Secondary (2o). |
| | C) | Tertiary (3o). |
|
|
8 | |
Which of the following intermolecular forces are present in alcohols? |
| | A) | Dipole-dipole forces |
| | B) | Dipole-induced dipole forces |
| | C) | Induced dipole-induced dipole forces |
| | D) | Hydrogen bonding |
| | E) | A and B |
| | F) | A, B and D |
| | G) | All of the above |
|
|
9 | |
The relative order of reactivity of alcohols to hydrogen halides is? |
| | A) | 1o > 2o > 3o |
| | B) | 1o > 3o > 2o |
| | C) | 2o > 1o > 3o |
| | D) | 2o > 3o > 1o |
| | E) | 3o > 1o > 2o |
| | F) | 3o > 2o > 1o |
|
|
10 | |
A concerted reaction is one where? |
| | A) | Multiple reagents react in a series of steps. |
| | B) | The reaction occurs in a single step. |
| | C) | There is a large activation energy barrier to the reaction. |
| | D) | There is no activation energy barrier to the reaction. |
|
|
11 | |
The relative order of carbocation stability is? |
| | A) | 1o > 2o > 3o |
| | B) | 1o > 3o > 2o |
| | C) | 2o > 1o > 3o |
| | D) | 2o > 3o > 1o |
| | E) | 3o > 1o > 2o |
| | F) | 3o > 2o > 1o |
|
|
12 | |
Hammond's Postulate states? |
| | A) | The transition state (TS) geometry resembles the starting material |
| | B) | The TS geometry resembles the product |
| | C) | The TS structure resembles the one closest in energy |
| | D) | The TS structure resembles the one furthest in energy |
| | E) | The TS structure in intermediate between the starting material and product |
|
|
13 | |
An electrophile is? |
| | A) | An atom (or molecule) with extra electrons (i.e. an anion). |
| | B) | An atom (or molecule) with lone pairs electrons. |
| | C) | An atom (or molecule) which is deficient in electrons (i.e. a cation). |
|
|
14 | |
Hyperconjugation refers to? |
| | A) | The stabilization of a carbocation by electron donation through a sigma bond. |
| | B) | The stabilization of a carbocation by electron donation through an adjacent occupied orbital overlapping with the empty p orbital. |
| | C) | The stabilization of a carbocation by electron donation from an adjacent pi bond. |
|
|
15 | |
An SN1 reactions is? |
| | A) | A unimolecular electrophilic substitution reaction. |
| | B) | A bimolecular electrophilic substitution reaction. |
| | C) | A unimolecular nucleophilic substitution reaction. |
| | D) | A bimolecular nucleophilic substitution reaction. |
|
|
16 | |
An SN2 reactions is? |
| | A) | A unimolecular electrophilic substitution reaction. |
| | B) | A bimolecular electrophilic substitution reaction. |
| | C) | A unimolecular nucleophilic substitution reaction. |
| | D) | A bimolecular nucleophilic substitution reaction. |
|
|
17 | |
The chlorination of an alkane is a? |
| | A) | A SN1 reaction. |
| | B) | A SN2 reaction. |
| | C) | A free radical reaction. |
| | D) | A reduction reaction. |
|
|
18 | |
The relative order of free radical stability for the following molecules is?
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0072828374/211137/4_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"> (15.0K)</a>]]> |
| | A) | 1 > 2 > 3 |
| | B) | 1 > 3 > 2 |
| | C) | 2 > 1 > 3 |
| | D) | 2 > 3 > 1 |
| | E) | 3 > 2 > 1 |
| | F) | 3 > 1 > 2 |
|
|
19 | |
A homolytic bond cleavage is when? |
| | A) | Both electrons in the bond go to the more electropositive atom. |
| | B) | Both electrons in the bond go to the more electronegative atom. |
| | C) | One electron goes to each atom. |
|
|
20 | |
Does the free radical chlorination of 2-methylbutane produce the same product mixture as the bromination? |
| | A) | Yes. |
| | B) | No. |
|