Question 1

Which of the following is the correct IUPAC name for the compound with the condensed formula $$\mathrm{CH_3CH_2COOH}$$?

Accepted Answer

Propanoic acid

Question 2

Which of the following equations correctly represents the neutralization of benzoic acid with potassium hydroxide?

Accepted Answer

$$\mathrm{C_6H_5COOH + KOH \rightarrow C_6H_5COO^- K^+ + H_2O}$$

Question 3

Which property explains why carboxylic acids with one to five carbon atoms are very soluble in water?

Accepted Answer

They form hydrogen bonds with water molecules.

Question 4

What are the products of the acid hydrolysis of ethyl propanoate ($$\mathrm{CH_3CH_2COOCH_2CH_3}) $$with water and an acid catalyst?

Accepted Answer

Propanoic acid and ethanol

Question 5

Which of the following best describes the reaction that produces an ester?

Accepted Answer

A carboxylic acid reacts with an alcohol in the presence of an acid catalyst and heat.

Question 6

Which of the following is the correct IUPAC name for the compound responsible for the odor of pears, with the formula $$\mathrm{CH_3COOCH_2CH_2CH_3}$$?

Accepted Answer

Propyl ethanoate

Question 7

Which of the following statements about amines is TRUE?

Accepted Answer

Primary and secondary amines with fewer than six carbons are soluble in water.

Question 8

Which of the following is the correct balanced equation for the base hydrolysis (saponification) of ethyl acetate ($$\mathrm{CH_3COOCH_2CH_3}) $$with sodium hydroxide?

Accepted Answer

$$\mathrm{CH_3COOCH_2CH_3 + NaOH \rightarrow CH_3COO^- Na^+ + CH_3CH_2OH}$$

Question 9

Which of the following amines is classified as a tertiary amine?

Accepted Answer

Ethyldimethylamine

Question 10

Which of the following is a product of the neutralization of ethylamine ($$\mathrm{C_2H_5NH_2}) $$with hydrochloric acid?

Accepted Answer

Ethylammonium chloride ($$\mathrm{C_2H_5NH_3^+Cl^-})$$

Question 11

Which of the following best describes the products of the acid hydrolysis of an amide?

Accepted Answer

A carboxylic acid and an ammonium salt

Question 12

Which of the following is the correct IUPAC name for the amide with the formula $$\mathrm{CH_3CONH_2}$$?

Accepted Answer

Ethanamide

Question 13

Which of the following statements about carboxylic acid salts is FALSE?

Accepted Answer

They are usually insoluble in water.

Question 14

Which of the following reactions is an example of amidation?

Accepted Answer

$$\mathrm{CH_3COOH + NH_3$ \xrightarrow{heat} CH_3CONH_2 + H_2O}$$

Question 15

Which of the following compounds is used as a flavor enhancer in foods and is a carboxylic acid salt?

Accepted Answer

Monosodium glutamate (MSG)

Question 16

Which of the following best describes the solubility of tertiary amines in water?

Accepted Answer

They are soluble if they have fewer than six carbon atoms.

Question 17

Which of the following is a correct statement about the metabolism of carboxylic acids in the human body?

Accepted Answer

During glycolysis, glucose is broken down into two molecules of pyruvate, a carboxylate salt.

Question 18

Which of the following is the correct IUPAC name for the compound with the structure $$\mathrm{CH_3CH_2CONHCH_3}$$?

Accepted Answer

N-methylpropanamide

Question 19

Which of the following is a correct equation for the dissociation of butanoic acid in water?

Accepted Answer

$$\mathrm{CH_3CH_2CH_2COOH + H_2O \rightleftharpoons CH_3CH_2CH_2COO^- + H_3O^+}$$

Carboxylic Acids, Esters, Amines, and Amides: Structure, Properties, and Reactions

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