Question 1

Which of the following statements best explains why ethanol ($$\mathrm{CH_3CH_2OH}) is $$more soluble in water than diethyl ether ($$\mathrm{CH_3CH_2OCH_2CH_3}$$)?

Accepted Answer

Ethanol can form hydrogen bonds with water, while diethyl ether cannot.

Question 2

Which of the following molecules contains a chiral carbon?

Accepted Answer

$$\mathrm{CH_3CH(OH)CH_2CH_3} (2-$$butanol)

Question 3

Which of the following best describes the product of the oxidation of a primary alcohol?

Accepted Answer

An aldehyde

Question 4

A student mixes 1-butanol ($$\mathrm{CH_3CH_2CH_2CH_2OH}) $$with concentrated sulfuric acid and heats the mixture. Which type of reaction occurs, and what is the major organic product?

Accepted Answer

Dehydration; 1-butene ($$\mathrm{CH_2$=CHCH_2CH_3})$$

Question 5

Which of the following functional groups can form hydrogen bonds with themselves, resulting in higher boiling points?

Accepted Answer

Carboxylic acids

Question 6

Which of the following is the correct classification for the alcohol in the molecule $$\mathrm{CH_3CH(OH)CH_3$}$$?

Accepted Answer

Secondary alcohol

Question 7

What is the product of the oxidation of a thiol ($$\mathrm{RSH}) $$with $$[O]$$?

Accepted Answer

A disulfide ($$\mathrm{RSSR})$$

Question 8

Which of the following compounds will have the highest boiling point due to intermolecular forces?

Accepted Answer

$$\mathrm{CH_3CH_2CH_2CH_2OH} (1-$$butanol)

Question 9

Which of the following reactions is a reduction?

Accepted Answer

$$\mathrm{CH_3CH_2CHO}$$ $$\xrightarrow{[H]}$$ $$\mathrm{CH_3CH_2CH_2OH}$$

Question 10

Which of the following statements about amines is correct?

Accepted Answer

Amines can form hydrogen bonds with water, increasing their solubility.

Question 11

Which of the following is the product when an aldehyde reacts with an alcohol under acidic conditions?

Accepted Answer

A hemiacetal

Question 12

How many chiral carbons are present in the molecule $$\mathrm{CH_3CH(OH)CH_2CH_3} (2-$$butanol)?

Accepted Answer

1

Question 13

Which of the following best describes the change in functional group during the oxidation of a secondary alcohol?

Accepted Answer

Alcohol to ketone

Question 14

Which of the following compounds is most likely to be a liquid at room temperature due to strong hydrogen bonding?

Accepted Answer

$$\mathrm{CH_3COOH} ($$acetic acid)

Question 15

Which of the following is the correct product of the two-step oxidation of a primary alcohol?

Accepted Answer

A carboxylic acid

Question 16

Which of the following best explains why amides have higher boiling points than esters of similar molecular weight?

Accepted Answer

Amides can form hydrogen bonds with each other, while esters cannot.

Question 17

Which of the following is the correct classification for the nitrogen atom in $$\mathrm{CH_3NHCH_2CH_3}$$?

Accepted Answer

Secondary amine

Question 18

A patient is exposed to formaldehyde ($$\mathrm{HCHO}). $$Which functional group is present in this molecule?

Accepted Answer

Aldehyde

Question 19

Which of the following reactions is a condensation reaction?

Accepted Answer

$$\mathrm{CH_3COOH}$$ + $$\mathrm{CH_3CH_2OH}$$ $$\rightarrow$$ $$\mathrm{CH_3COOCH_2CH_3}$$ + $$\mathrm{H_2O}$$

Question 20

Which of the following best describes the solubility trend for carboxylic acids in water as the hydrocarbon chain length increases?

Accepted Answer

Solubility decreases due to increased nonpolar character.

CHEM1301 Exam 3 Study Guide: Alcohols, Ethers, Thiols, Chirality, Aldehydes, Ketones, Carboxylic Acids, Esters, Amides, and Amines

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