Deck 16: Carboxylic Acids and Esters

Question 1

In the common naming convention for carboxylic acids, what is the correct Greek letter used for the carbon adjacent to the carboxyl group?

A)
B)
C)
D)
E)

Answer 1

Question 2

What kind of taste do carboxylic acids have?

A)sweet
B)fruity
C)slippery
D)sour
E)oily

Answer 2

sour

Question 3

The compound below is named

A) benzamide.
B) benzoic acid amine.
C) 2-aminobenzoic acid.
D) 3-aminobenzoic acid.
E) 2-acid aniline.

Answer 3

3-aminobenzoic acid.

Question 4

Which functional group is found in a carboxylic acid?

A)
B)
C)
D)
E)

Question 5

What is the common name for ethanoic acid?

A)citric acid
B)stearic acid
C)butyric acid
D)acetic acid
E)formic acid

Question 6

What α-hydroxy acid is found predominantly in grapes?

A)glycolic acid
B)citric acid
C)benzoic acid
D)lactic acid
E)tartaric acid

Question 7

A carboxylic acid is prepared from an aldehyde by

A)hydrogenation.
B)neutralization.
C)hydrolysis.
D)oxidation.
E)reduction.

Question 8

What is the common name of the compound?

A)butyric acid
B)propanoic acid
C)acetic acid
D)butanoic acid
E)propionic acid

Question 9

What is the method of preparing carboxylic acids from primary alcohols or aldehydes?

A)hydrolysis
B)oxidation
C)reduction
D)hydration
E)saponification

Question 10

Which organic acid accounts for the odor of rancid butter?

A)formic acid
B)ethanoic acid
C)acetic acid
D)butyric acid
E)propionic acid

Question 11

What is the IUPAC name for this compound?

A) 2,4-dimethylpentanoic acid
B) pentanoic acid
C) heptanoic acid
D) 3,4-dimethylpentanoic acid
E) 3-methylhexanoic acid

Question 12

A carboxylic acid is named in the IUPAC system by replacing the -e in the name of the parent alkane with

A)acid.
B)-carboxylic acid.
C)-oic acid.
D)-oate.
E)-oic.

Question 13

Which of these functional groups is likely to give a sour taste to a food?

A)ether
B)thiol
C)ketone
D)carboxylic acid
E)ester

Question 14

What significant side effect is seen with α-hydroxy acid use?

A)increased susceptibility to infection
B)UV sensitivity
C)increased thirst
D)gastric irritation
E)nausea

Question 15

The strcutural formula of the carboxylic acid produced by the oxidation of 2,2-dimethyl-1-propanol is

A)
B)
C)
D)
E)

Question 16

What is the IUPAC name for this compound?

A) 3-methylbutanoic acid
B)
C)
D) 2-methyl-4-butanoic acid
E) pentanoic acid

Question 17

What is the irritating acid found in ant and bee stings?

A)citric acid
B)butyric acid
C)formic acid
D)acetic acid
E)stearic acid

Question 18

The functional group in acetic acid is called the

A)hydroxyl group.
B)aldehyde group.
C)carboxyl group.
D)carbonyl group.
E)ester group.

Question 19

Which of the following is found in vinegar?

A)propionic acid
B)formic acid
C)nitric acid
D)butyric acid
E)acetic acid

Question 20

What therapeutic use is made of α-hydroxy acids?

A)reduction of skin pigmentation
B)sunscreen
C)antibiotic
D)fever reduction
E)ulcer treatment

Question 21

Which of the following is the reaction for the ionization of acid in water?

A)
B)
C)
D)
E)

Question 22

What is the product of the reaction of pentanoic acid with ethanol in the presence of a strong acid?

A)ethyl pentanoate
B)heptanoic acid
C)pentyl ethanoate
D)pentyl acetate

Question 23

What is the common use of monosodium glutamate?

A)as a flavor enhancer
B)as a disinfectant
C)as a spoilage inhibitor
D)as an antipyretic
E)as a preservative

Question 24

In water solution, how does dilute acetic acid behave?

A)as a weak acid
B)as a weak base
C)as a strong acid
D)as a neutral compound
E)as a strong base

Question 25

Which of these compounds is the ester formed from the reaction of acetic acid and 1-propanol?

A)
B)
C)
D)
E)

Question 26

What kind of intermolecular force occurs between carboxylic acids?

A)hydrogen bonding
B)nonpolar bonding
C)covalent bonding
D)charge-transfer bonding
E)ionic bonding

Question 27

Which compound below contains an ester functional group?

A)
B)
C)
D)
E)

Question 28

The neutralization of formic acid by produces

A) sodium formate and
B) sodium formaldehyde.
C) formate ion and hydronium ion.
D) sodium formate as the only product.
E) methvl alcohol.

Question 29

What metabolic product of pyruvic acid is formed anaerobically during exercise?

A)β-ketoglutaric acid
B)acetic acid
C)malic acid
D)lactic acid
E)citric acid

Question 30

Why do carboxylic acids have higher boiling points than similar alcohols or aldehydes?

A)They are more water soluble.
B)The carboxylic acid chain is not linear.
C)They have higher molar masses.
D)They form dimers.
E)They have an additional oxygen atom.

Question 31

Which carboxylic acid in the list below is an aromatic carboxylic acid?

A)butyric acid
B)citric acid
C)acetic acid
D)benzene
E)benzoic acid

Question 32

Which of the following are the correct products for the reaction acetic acid and pottasium hydroxide?

A)
B)
C)
D)
E)

Question 33

Which of these is an acid formed in the citric acid cycle?

A)acetic acid
B)α-ketoglutaric acid
C)propionic acid
D)palmitic acid
E)benzoic acid

Question 34

This functional group is known as a(n)

A) ester.
B) aldehyde.
C) carboxylic acid.
D) acetal.
E) alcohol.

Question 35

When compared to sulfuric acid, how strong are carboxylic acids?

A)weaker
B)stronger
C)just as strong
D)not acidic at all

Question 36

What happens to water solubility as chain length increases in carboxylic acids?

A)It decreases.
B)It increases.
C)It stays the same.

Question 37

Which of the following compounds is most soluble in water?

A)
B)
C)
D)
E)

Question 38

Which of the following is the reaction for the neautrilization of with NaOH?

A)
B)
C)
D)
E)

Question 39

The reactants that will form an ester in the presence of an acid catalyst are

A)two aldehydes.
B)a carboxylic acid and an alcohol.
C)two carboxylic acids.
D)an aldehyde and an alcohol.
E)two alcohols.

Question 40

What common use is made of sodium propionate and sodium benzoate?

A)pH adjuster
B)disinfectant
C)decongestant
D)flavor enhancer
E)preservative

Question 41

What chemical process is responsible for the smell of vinegar in an old bottle of aspirin?

A)dissolution
B)hydrolysis
C)esterification
D)reduction
E)hydration

Question 42

What is the product of the reaction of an alcohol and a carboxylic acid when reacted under acidic conditions?

A)an aldehyde
B)a salt
C)an ether
D)an ester
E)a ketone

Question 43

Which of the following is the reaction for the acid hydrolysis of ethyl formate?

A)
B)
C)
D)
E)

Question 44

The reaction of an ester with NaOH is known as

A)esterification.
B)neutralization.
C)reduction.
D)saponification.
E)oxidation.

Question 45

From what component is the first part of the IUPAC name of an ester (such as methyl acetate)derived?

A)the amide
B)the ester
C)the alcohol
D)the ether
E)the carboxylic acid

Question 46

Give the IUPAC name for the following compound

A)4-hexanal
B)ethyl propyl ether
C)ethyl propanoate
D)ethyl butanoate
E)hexanoic acid

Question 47

What is the common name of this compound?

A)ethyl acetate
B)2-ether-2-butanone
C)diethyl ester
D)ethyl methyl ester
E)ethyl methanoate

Question 48

What is the common name of this compound?

A)ethyl acetate
B)propyl formate
C)propyl methyl ester
D)diethyl ester
E)propyl methanoate

Question 49

Many of the fragrances of flowers and the flavors of fruits are due to

A)amides.
B)ethers.
C)carboxylic acids.
D)esters.
E)amines.

Question 50

Derivatives of which aromatic carboxylic acid have been used as analgesics, antipyretics, and anti-inflammatory agents?

A)
B) benzoic acid
C) salicylic acid
D) naphthenic acid
E) anthranilic acid

Question 51

Give the IUPAC name for the following compound.

A)ethyl propyl ester
B)4-hexanal
C)ethyl butanoate
D)ethyl propanoate
E)methyl butanoate

Question 52

The splitting apart of an ester in the presence of a strong acid and water is called

A)reduction.
B)neutralization.
C)esterification.
D)hydrolysis.
E)saponification.

Question 53

Which of the following is the reaction for the saponification of methyl acetate?

A)
B)
C)
D)
E)

Question 54

The alcohol and carboxylic acid required to form propyl ethanoate are

A)1-propanol and ethanoic acid.
B)propanol and propanoic acid.
C)methanol and propionic acid.
D)2-propanol and ethanoic acid.
E)ethanol and propionic acid.

Question 55

Give the IUPAC name for the following compound.

A)methyl ethanoate
B)methyl formyl ether
C)methyl methanoate
D)ethanoate
E)methyl formate