Question 1

Which of the following best describes the difference in boiling points between alcohols and ethers of similar molar mass?

Accepted Answer

Alcohols have higher boiling points because they can form hydrogen bonds between molecules.

Question 2

What is the IUPAC name for the compound with the condensed structural formula $$\mathrm{CH_3CH_2CH_2OH}$$?

Accepted Answer

1-Propanol

Question 3

Which of the following compounds is classified as a secondary alcohol?

Accepted Answer

2-Propanol

Question 4

A compound with the formula $$\mathrm{C_6H_5OH} is $$best described as:

Accepted Answer

A phenol

Question 5

Which of the following is the correct IUPAC name for the compound commonly known as 'ethyl methyl ether'?

Accepted Answer

Methoxyethane

Question 6

What is the major product when 2-butanol undergoes dehydration in the presence of an acid catalyst?

Accepted Answer

2-Butene

Question 7

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

Accepted Answer

Alcohols with 1–3 carbon atoms are completely miscible in water.

Question 8

Which of the following is the correct IUPAC name for the compound with the structure shown below?

$$\mathrm{CH_3CH_2OCH_2CH_3}$$

Accepted Answer

Diethyl ether

Question 9

Which of the following reactions represents the oxidation of a primary alcohol?

Accepted Answer

$$\mathrm{CH_3CH_2OH \xrightarrow{[O]} CH_3CHO}$$

Question 10

Which of the following best explains why tertiary alcohols do not undergo oxidation under mild conditions?

Accepted Answer

They lack a hydrogen atom on the carbon bonded to the --OH group.

Question 11

What is the IUPAC name for the following compound?

$$\mathrm{CH_3CH_2SH}$$

Accepted Answer

Ethanethiol

Question 12

Which of the following best describes the functional group present in thiols?

Accepted Answer

A thiol group ($$--SH)$$

Question 13

A hospital laboratory technician needs to distinguish between methanol and ethanol. Which chemical test would best differentiate these two alcohols?

Accepted Answer

Oxidation to formaldehyde and acetaldehyde, respectively

Question 14

Which of the following is the correct IUPAC name for the compound with the structure below?

$$\mathrm{CH_3CH_2OCH_2CH_2CH_3}$$

Accepted Answer

1-Ethoxypropane

Question 15

Which of the following statements about phenol is correct?

Accepted Answer

Phenol is slightly soluble in water and has a high boiling point due to hydrogen bonding.

Question 16

Which of the following is the correct IUPAC name for the compound shown below?

$$\mathrm{C_6H_5OCH_3}$$

Accepted Answer

Methoxybenzene

Question 17

Which of the following best describes the dehydration reaction of an alcohol?

Accepted Answer

An alcohol loses a water molecule to form an alkene.

Question 18

Which of the following is the correct classification for the alcohol in the structure below?

$$\mathrm{CH_3CH(OH)CH_3$}$$

Accepted Answer

Secondary alcohol

Question 19

Which of the following best explains why small alcohols are more soluble in water than larger alcohols?

Accepted Answer

The polar --OH group dominates in small alcohols, allowing hydrogen bonding with water.

Question 20

Which of the following is the correct IUPAC name for a cyclic alcohol with a six-membered ring and one --OH group?

Accepted Answer

Cyclohexanol

Alcohols, Phenols, Thiols, and Ethers: Structure, Nomenclature, Properties, and Reactions

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