Test Bank | Functional Groups Adding Function To The – Ch7

Chapter 7: Functional groups: adding function to the framework of life

Test Bank

Type: multiple response question

Title: Chapter 07 - Question 01

1) The carbonyl group appears in which of the following organic compounds? Select all that apply.

a. Alcohols

b. Aldehydes

c. Carboxylic acids

d. Ethers

e. Alkanes

Type: matching question

Title: Chapter 07 - Question 02

2) Rank the following compounds in order of water-solubility, with 1 being the most soluble, and 4 being the least soluble.

Feedback: Solubility in water is influenced by the extent of hydrogen bonding that a compound can undergo (as explained in chapter 4). At one extreme, alkanes cannot participate in hydrogen bonding, and so are the least water-soluble; by contrast, the carboxylic acids can undergo extensive hydrogen bonding, and are the most water-soluble.

a. Alcohols = 2

b. Alkanes = 4

c. Carboxylic acids = 1

d. Ethers = 3

Type: matching question

Title: Chapter 07 - Question 03

3) Rank the following alcohols in order of solubility, with 1 being the most soluble and 4 being the least soluble.

Feedback: The water-solubility of the alcohols is influenced by the size of their alkyl group: the larger the alkyl group, the lower the water-solubility. The effect of the size of the alkyl group upon water-solubility is described in chapter 6.

a. Hexanol = 3

b. Octanol = 4

c. Ethanol = 2

d. Methanol = 1

Type: multiple choice question

Title: Chapter 07 - Question 04

4) Which functional group is involved in the formation of disulfide bridges?

a. The amino group

b. The thiol group

c. The carbonyl group

d. The hydroxyl group

e. The alkoxy group

Type: matching question

Title: Chapter 07 - Question 05

5) Match the structural formula to the family of amines to which it belongs.

Feedback: The amines are classified according to the number of hydrogens, attached to the central nitrogen atom of the amino group, that have been replaced by alkyl groups. See section 7.3 for more details.

a. = Tertiary amine

b. = Secondary amine

c. = Primary amine

Type: matching question

Title: Chapter 07 - Question 06

6) Match the following structural formulae of functional groups to their correct names.

Feedback: A table showing the structural formulae of a range of functional groups, together with their names, is shown in Table 7.1.

a. = Carbonyl

b. = Ester

c. = Ether

d. = Amino

e. = Thiol

f. = Aldehyde

g. = Ketone

Type: multiple choice question

Title: Chapter 07 - Question 07

7) The amide group comprises which two functional groups?

a. Amino and hydroxyl

b. Amino and alkoxy

c. Amino and carbonyl

d. Carbonyl and hydroxyl

e. Amino and thiol

Type: matching question

Title: Chapter 07 - Question 08

8) Rank the following organic compounds in order of melting and boiling point, with 1 having the highest melting and boiling points, and 4 having the lowest.

Feedback: For this question, you need to consider the extent to which hydrogen bonding occurs in each compound: the greater the extent of hydrogen bonding, the greater the interactions that hold adjacent molecules together, and so the higher the melting and boiling points. To remind yourself about hydrogen bonding, look at chapter 4.

a. Carboxylic acids = 1

b. Alkanes = 4

c. Alcohols = 2

d. Ethers = 3

Type: multiple choice question

Title: Chapter 07 - Question 09

9) Aldehydes can be represented by which of the following generic formulae?

a. RCO₂H

b. ROH

c. RCOR’

d. ROR’

e. RCHO

Type: multiple choice question

Title: Chapter 07 - Question 10

10) Esters can be formed from the reaction of which of the following pairs of compounds?

a. Aldehydes and ketones

b. Alcohols and aldehydes

c. Alcohols and alkanes

d. Alcohols and carboxylic acids

e. Aldehydes and carboxylic acids

Type: multiple choice question

Title: Chapter 07 - Question 11

11) What is the name of this compound?

a. Pentyl ethanoate

b. Hexanoic acid

c. Hexanal

d. Hexanone

e. Hexane

Type: multiple choice question

Title: Chapter 07 - Question 12

12) Which of the following structural formulae is the ester propyl ethanoate?

a.

b.

c.

d.

e.

Type: multiple choice question

Title: Chapter 07 - Question 13

13) This compound belongs to which family of organic compounds?

a. Ketones

b. Aldehydes

c. Alcohols

d. Esters

e. Ethers

Type: multiple choice question

Title: Chapter 07 - Question 14

14) Acetic acid is the common (or ‘trivial’) name for which of the following carboxylic acids?

a. Methanoic acid

b. Ethanoic acid

c. Propanoic acid

d. Butanoic acid

e. Pentanoic acid

Type: multiple choice question

Title: Chapter 07 - Question 15

15) Formaldehyde is the common (or ‘trivial’) name for which of the following compounds?

a. Ethanal

b. Methanone

c. Methanal

d. Ethanol

e. Methanoic acid

Type: matching question

Title: Chapter 07 - Question 16

16) Match the following structural formulae with their correct names.

Feedback: Look at Table 7.1 for a reminder of the names given to organic compounds carrying each major functional group.

a. = Propanamide

b. = Propanethiol

c. = Chloropropane

d. = Propanone

e. = Propanal

Type: multiple choice question

Title: Chapter 07 - Question 17

17) What is the name of the compound represented by the structural formula CH₃CH₂OCH₂CH₂CH₃?

a. Propanone

b. Propoxyethane

c. Ethoxypropane

d. Pentanol

e. Butanoic acid

Type: true-false

Title: Chapter 07 - Question 18

18) Ethers can act as both hydrogen bond donors and hydrogen bond acceptors. True or false?

a. True

b. False

Type: multiple response question

Title: Chapter 07 - Question 19

19) Compounds fitting which of the following descriptions may be water-soluble? Please select all that apply.

a. A hydrogen bond donor and a hydrogen bond acceptor.

b. Neither a hydrogen bond donor nor a hydrogen bond acceptor.

c. A hydrogen bond donor only

d. A hydrogen bond acceptor only

Type: multiple choice question

Title: Chapter 07 - Question 20

20) Which of the following statements concerning organic compounds is false?

a. Compounds carrying the same functional group exhibit similar chemical and physical properties.

b. Compounds carrying the same functional group must have the same carbon framework.

c. As an alkyl group increases in size, it decreases the solubility of the compound of which it is part.

d. A functional group typically increases the melting and boiling points of the compound of which it is part.

e. A functional group typically increases the solubility of the compound of which it is part.