PROBLEMS FOR CH 12
Learning Check
Identify each of the following compounds as an alkane,
alkene, or alkyne. A.
B.
C.
D.
Solution
Identify each of the following compounds as an alkane,alkene, or alkyne. A. alkyne
B. alkene
C. alkene
D. alkane
Write the IUPAC name for the following compounds.
A. B.
Learning Check
CH3 C CH CH2
CH3CH3
HC C CH
CH3
CH3
Write the IUPAC name for the following compounds.
A. B.
Step 1 Name the longest carbon chain that contains the double or triple bond.
A. B.
pentene butyne
Solution
CH3 C CH CH2
CH3CH3
HC C CH
CH3
CH3
CH3 C CH CH2
CH3CH3
HC C CH
CH3
CH3
Write the IUPAC name for the following compounds.
A. B.
Step 2 Number the main chain from the end nearer the double or triple bond. 1 2 3 4
A. B. 1 2 3
5 4
2-pentene 1-butyne
Solution
CH3 C CH CH2
CH3CH3
HC C CH
CH3
CH3
CH3 C CH CH2
CH3CH3
HC C CH
CH3
CH3
Write the IUPAC name for the following compounds.
A. B.
Step 3 Give the location and name of each substituent (alphabetical order) as a
prefix to the alkene or alkyne name.
A. B.
Solution
CH3 C CH CH2
CH3CH3
HC C CH
CH3
CH3
1 2 3 4
51 2 3
4
2-methyl-2-pentene 3-methyl-1-butyne
CH3 C CH CH2
CH3CH3
HC C CH
CH3
CH3
Learning Check
Draw the condensed structural formula for each of the
following.
A. 2-hexyne
B. 3-methyl-3-hexene
Solution
Draw the condensed structural formula for each of the
following.
A. 2-hexyne
B. 3-methyl-3-hexene
Learning Check
Name each, using cis–trans prefixes when needed.
C C
CH3 H
CH3H
C C
Br Br
H H
A.
B.
C C
CH3 Cl
ClH
C.
A.
Solution
Name each, using cis–trans prefixes when needed.
cis-1,2-Dibromoethene
trans-2-Butene
1,1-DichloropropeneIdentical atoms; no cis or trans
A.
C C
CH3 H
CH3H
C C
Br Br
H H
A.
B.
C C
CH3 Cl
ClH
C.
A.
Learning Check
Write an equation for the hydrogenation of 1-buteneusing a platinum catalyst.
Solution
Write an equation for the hydrogenation of 1-buteneusing a platinum catalyst.
© 2013 Pearson Education, Inc. Chapter 12 Section 1 14
Learning Check
Draw the condensed structural formula of the productof each the following reactions.
?
?
© 2013 Pearson Education, Inc. Chapter 12 Section 1 15
Solution
Draw the condensed structural formula of the productof each the following reactions.
Draw the condensed structural formula of the product of each the following addition reactions.
Learning Check
?
2. Br2(l) ?
© 2013 Pearson Education, Inc. Chapter 12 Section 1 17
Solution
2. Br2(l)
Draw the condensed structural formula of the product of each the following addition reactions.
© 2013 Pearson Education, Inc. Chapter 12 Section 1 18
Learning Check
Predict the product for the following reaction of 1-pentene with HCl.
C C
HH
H CH3 CH2 CH3
+ HCl
© 2013 Pearson Education, Inc. Chapter 12 Section 1 19
Solution
Predict the product for the following reaction of 1-pentene with HCl.
H adds to the carbon that has more hydrogen atoms attached.
C C
HH
H CH3 CH2 CH3
+ HCl
C C
HH
HCH3 CH2 CH3
H Cl
Learning Check
Draw the condensed structural formula of the product
of the following hydration reaction.H3C
C C
CH2
CH3
H3C
H + HOHH+
Solution
Draw the condensed structural formula of the product
of the following hydration reaction.H3C
C C
CH2
CH3
H3C
H + HOHH+
H3C
C C
CH2
CH3H3C
H
OH H
© 2013 Pearson Education, Inc. Chapter 12 Section 1 22
Learning Check
Draw the condensed structural formula of the product of each the following reactions.
H+
© 2013 Pearson Education, Inc. Chapter 12 Section 1 23
Solution
Draw the condensed structural formula of the product of each the following reactions.
H+
Learning Check
What is the starting monomer for polyethylene?
CC
H
H
C
H
H
C
H
H
C
H
H
H
H
C
H
H
Solution
What is the starting monomer for polyethylene?
Ethene (ethylene), CH2 CH═ 2
CC
H
H
C
H
H
C
H
H
C
H
H
H
H
C
H
H
Learning Check
Name the monomer used to make Teflon, and use fourmonomers to draw the condensed structural formula of a portion of a Teflon polymer.
Solution
Name the monomer used to make Teflon, and use fourmonomers to draw the condensed structural formula of a portion of a Teflon polymer.
Learning Check
Select the correct name(s) for each of the following compounds.
A. chlorocyclohexaneB. chlorobenzeneC. 1-chlorobenzene
A. 1,2-dimethylbenzeneB. 1,3-dimethylbenzeneC. m-xylene
CH3
CH3
Cl
Solution
Select the correct name(s) for each of the following compounds.
B. chlorobenzene
B. 1,3-dimethylbenzeneC. m-xylene
CH3
CH3
Cl
Learning Check
Draw the condensed structural formulas for each of the following.1. 1,3-dichlorobenzene
2. o-chlorotoluene
Solution
Draw the condensed structural formulas for each of the following. 1. 1,3-dichlorobenzene
2. o-chlorotoluene
Cl
Cl
CH3
Cl
Learning Check
Identify the organic family for each of the following.
A.
B.
C.
D.
Solution
Identify the organic family for each of the following:
A. alkene
B. cycloalkane (alkane)
C. alkyne
D. aromatic