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