Question 1

Which of the following statements best explains why carboxylic acids have higher boiling points than alcohols, ketones, and aldehydes?

Accepted Answer

Carboxylic acids can form strong hydrogen bonds between two molecules, leading to dimer formation.

Question 2

What is the IUPAC name for the following compound: $$\mathrm{CH_3CH_2COOH}$$?

Accepted Answer

Propanoic acid

Question 3

Which of the following is the correct product when butanoic acid reacts with sodium hydroxide ($$\mathrm{NaOH}$$)?

Accepted Answer

$$\mathrm{CH_3CH_2CH_2COONa} ($$sodium butanoate) and water

Question 4

Which of the following carboxylic acids is most soluble in water?

Accepted Answer

Butanoic acid ($$\mathrm{C_3H_7COOH})$$

Question 5

A student wants to synthesize ethyl acetate, a common ester used in nail polish remover. Which reactants and conditions are required?

Accepted Answer

Ethanol and acetic acid with acid and heat

Question 6

What is the correct name for the ion formed when propanoic acid loses a proton?

Accepted Answer

Propanoate ion

Question 7

Which of the following best describes the process of saponification?

Accepted Answer

The reaction of an ester with a strong base to produce a carboxylate salt and an alcohol

Question 8

Which of the following is the correct IUPAC name for the compound commonly known as formic acid?

Accepted Answer

Methanoic acid

Question 9

A compound is named as $$\alpha-$$methylbutyric acid in common nomenclature. What is its IUPAC name?

Accepted Answer

2-methylbutanoic acid

Question 10

Which of the following statements about the acidity of carboxylic acids is correct?

Accepted Answer

Carboxylic acids are weak acids and partially donate their proton to water.

Question 11

Which of the following best describes the structure of an ester?

Accepted Answer

A carbonyl group directly bonded to an ether oxygen

Question 12

During the acid hydrolysis of methyl butanoate, which products are formed?

Accepted Answer

Butanoic acid and methanol

Question 13

Which of the following statements about the solubility of esters in water is correct?

Accepted Answer

Small esters (5 carbons or less) are soluble in water due to their polarity.

Question 14

Which of the following reactions is used in the industrial production of soap?

Accepted Answer

Base hydrolysis of esters (saponification)

Question 15

What is the correct name for the ester formed from methanol and propanoic acid?

Accepted Answer

Methyl propanoate

Question 16

Which of the following best describes the process by which a primary alcohol is converted to a carboxylic acid?

Accepted Answer

Oxidation: primary alcohol $$\rightarrow$$ aldehyde $$\rightarrow$$ carboxylic acid

Question 17

Aspirin is a biologically relevant ester. Which two functional groups are involved in its synthesis?

Accepted Answer

Carboxylic acid and alcohol

Question 18

Which of the following is the correct IUPAC name for the compound with the structure $$\mathrm{CH_3COOCH_2CH_3}$$?

Accepted Answer

Ethyl ethanoate

Question 19

Which of the following statements about the naming of esters is correct?

Accepted Answer

The alkyl group from the alcohol is named first, followed by the carboxylate name from the acid.

Question 20

Which of the following best explains why carboxylic acids are more acidic than alcohols?

Accepted Answer

The carboxylate ion formed after deprotonation is stabilized by resonance.

Carboxylic Acids and Esters: Structure, Properties, and Reactions

Study Guide - Practice Questions