Carboxylic Acids and Esters; Amines and Amides

Question 1

The acids were among the first organic compounds studied. Why?

Select one:

a. their simplicity
b. their color
c. their abundance
d. their boiling points

Answer 1

c. their abundance

Question 2

Two molecules of a carboxylic acid are joined together by two hydrogen bonds. This is referred to as:

Select one:

a. a dimer
b. an amide
c. an ester
d. a carboxylate salt

Answer 2

a. a dimer

Question 3

How does one recognize an organic acid?

Select one:

a. COH
b. COC
c. COOH
d. CHO

Answer 3

c. COOH

Question 4

When a carboxylic acid reacts with alcohol, the organic product is

Select one:

a. an acetal
b. a hemiacetal
c. an ester
d. a salt

Answer 4

c. an ester

Question 5

The IUPAC name of the ester formed from butanoic acid and ethanol is

Select one:

a. butyl ethanate
b. butyl ethanonate
c. ethyl proponoate
d. ethyl butanoate

Answer 5

d. ethyl butanoate

Question 6

Saponification is

Select one:

a. a chemical reaction that results in a soap.
b. a chemical reaction due to the presence of a strong organic acid.
c. a chemical reaction that results in an alcohol and an ester.
d. a chemical reaction that explains why soap does not wash off easily in hard water.

Answer 6

a. a chemical reaction that results in a soap.

Question 7

Phosphate esters are prepared from

Select one:

a. phosphoric acid + alcohol
b. phosphoric acid + carboxylic acid
c. phosphoric acid + ester
d. ester + phosphate

Answer 7

a. phosphoric acid + alcohol

Question 8

Nitrate esters are found in some

Select one:

a. flavoring agents
b. detergents
c. food preservatives
d. explosives

Answer 8

d. explosives

Question 9

Reacting a carboxylic acid with a base will produce?

Select one:

a. an ester
b. no reaction
c. a carboxylate salt
d. an anhydride

Answer 9

c. a carboxylate salt

Question 10

The “fight or flight” hormone is

Select one:

a. epinephrine
b. amphetamine
c. serotonin
d. dopamine

Answer 10

a. epinephrine

Question 11

The alkaloid present in cola drinks is

Select one:

a. caffeine
b. nicotine
c. cocaine
d. dopamine

Answer 11

a. caffeine

Question 12

Amines function chemically as organic

Select one:

a. acids
b. bases
c. salts
d. waters

Answer 12

b. bases

Question 13

Which of the following four-carbon amides would be the least soluble in water?

Select one:

a. simple amides
b. monosubstituted amides
c. disubstituted amides
d. all would be equally soluble

Answer 13

c. disubstituted amides

Question 14

Primary amines have boiling points slightly lower than those of ________ with comparable molecular weights.

Select one:

a. alcohols
b. carboxylic acids
c. alkanes
d. tertiary alcohols

Answer 14

a. alcohols

Question 15

An alkaloid used in treating malaria is

Select one:

a. histamine
b. quinine
c. atropine
d. nicotine

Answer 15

b. quinine

Question 16

An alkaloid used to reduce saliva flow in surgical patients is

Select one:

a. atropine
b. quinine
c. caffeine
d. codeine

Answer 16

a. atropine

Question 17

The amide produced from pentanoic acid and ammonia is

Select one:

a. N-pentanamide
b. N-methylpentanamide
c. pentanoicamide
d. pentanamide

Answer 17

d. pentanamide

Question 18

Hydrolysis of an amide under basic conditions produces

Select one:

a. a carboxylic acid and amine
b. a carboxylate salt and amine salt
c. a carboxylic and amine salt
d. a carboxylate salt and amine

Answer 18

d. a carboxylate salt and amine