Alcohols, Phenols, and Ethers: Interactive Learning Quizzes

Question 1

Identify the compound that is not classified as an ether:

Accepted Answer

CH3-CH2-OH

Answer

CH3-O-CH3

Answer

(CH3)3C-O-CH(CH3)2

Answer

C6H5-O-C6H5

Question 2

What is the hybridization of the oxygen atom in ethers?

Accepted Answer

sp3

Answer

sp

Answer

sp2

Answer

sp3d

Question 3

State the IUPAC name for the compound CH3CH(CH3)OCH2CH3.

Accepted Answer

1-Methoxy-2-methylpropane

Answer

1-Ethoxy-2-methylpropane

Answer

2-Methoxy-3-methylbutane

Answer

2-Ethoxy-3-methylbutane

Question 4

Which of the following solvents is commonly used for extracting alcohols and ethers?

Accepted Answer

Diethyl ether

Answer

Water

Answer

Hexane

Answer

Dichloromethane

Question 5

Which functional group characterizes alcohols?

Accepted Answer

-OH

Answer

-NH2

Answer

-COOH

Answer

-C=O

Question 6

Phenols exhibit a characteristic reaction known as:

Accepted Answer

Electrophilic aromatic substitution

Answer

Nucleophilic addition

Answer

Esterification

Answer

Saponification

Question 7

Determine the general formula of ethers:

Accepted Answer

R-O-R'

Answer

R-OH

Answer

R-COOH

Answer

R-NH2

Question 8

Which of the following compounds exhibits the strongest acidity?

Accepted Answer

Phenol

Answer

Ethanol

Answer

Water

Answer

Ether

Question 9

Identify the reagent used to oxidize primary alcohols to aldehydes:

Accepted Answer

KMnO4

Answer

NaBH4

Answer

H2SO4

Answer

NaOH

Question 10

Predict the major product when an ether undergoes a reaction with a strong acid:

Accepted Answer

Alcohol

Answer

Carboxylic acid

Answer

Ester

Answer

Ketone

Question 11

Determine the hybridization of the carbon atom within the ether functional group:

Accepted Answer

sp3

Answer

sp

Answer

sp2

Answer

sp3d

Question 12

Provide the IUPAC name for the compound CH3CH(OH)CH2CH3:

Accepted Answer

2-Butanol

Answer

1-Butanol

Answer

Propanol

Answer

Ethanol

Question 13

Which compound is more acidic, alcohols or phenols? Explain the factors that contribute to the difference in their acidity.

Accepted Answer

Phenols are more acidic due to resonance stabilization of the phenoxide ion by the aromatic ring.

Answer

Alcohols are more acidic due to a stronger O-H bond.

Answer

Alcohols and phenols have similar acidity because of the shared -OH group.

Answer

Acidity is not affected by resonance or O-H bond strength in alcohols and phenols.

Question 14

Identify the compound that does not belong to the class of alcohols.

Accepted Answer

Phenol

Answer

Methanol

Answer

Ethanol

Answer

Propanol

Question 15

Which functional group is characteristic of ether compounds?

Accepted Answer

-OR'

Answer

-OH

Answer

-COOH

Answer

-NH2

Question 16

Predict the primary product formed in this reaction: CH3CH2OH + HBr →

Accepted Answer

CH3CH2Br

Answer

CH3CHOHBr

Answer

CH3COOH

Answer

CH3COOCH3

Question 17

Provide the IUPAC name for the compound: CH3CH(OH)CH2CH3

Accepted Answer

2-Propanol

Answer

1-Propanol

Answer

1-Butanol

Answer

2-Butanol

Question 18

Identify the reaction commonly used for the synthesis of ethers.

Accepted Answer

Williamson ether synthesis

Answer

SN2 reaction

Answer

E2 reaction

Answer

Friedel-Crafts reaction

Question 19

When phenols react with oxidizing agents, which product is formed?

Accepted Answer

Quinone

Answer

Aldehyde

Answer

Ketone

Answer

Ester

Question 20

Identify the factor that primarily contributes to the higher acidity of phenols compared to alcohols.

Accepted Answer

Resonance stabilization of the phenoxide ion

Answer

Presence of the hydroxyl group

Answer

Hybridization of the carbon atom bonded to the hydroxyl group

Answer

Electronegativity of the oxygen atom in the hydroxyl group

Question 21

Explain the reason behind the higher boiling point of 1-butanol compared to pentane.

Accepted Answer

Hydrogen bonding in 1-butanol

Answer

Van der Waals forces in pentane

Answer

Dipole-dipole interactions in 1-butanol

Answer

Polar covalent bonds in 1-butanol

Question 22

Identify the common method used for synthesizing ethers.

Accepted Answer

Williamson ether synthesis

Answer

SN2 reaction of alkoxide ion with alkyl halide

Answer

E2 reaction of alcohol with strong base

Answer

Free radical addition of alcohol to alkene

Question 23

Which ether is commonly used as an anesthetic?

Accepted Answer

Diethyl ether

Answer

Methyl tert-butyl ether (MTBE)

Answer

Tetrahydrofuran (THF)

Answer

Dimethoxyethane (DME)

Question 24

What is the major product formed when phenol reacts with sodium hydroxide?

Accepted Answer

Sodium phenoxide

Answer

Phenol

Answer

Phenoxide ion

Answer

Sodium phenol

Question 25

Ethers can be synthesized via the Williamson ether synthesis reaction.

Accepted Answer

True

Answer

False

Question 26

Ethers are generally unreactive because they lack acidic or basic functional groups.

Accepted Answer

True

Answer

False

Question 27

Which of the following reagents can be used to distinguish between primary, secondary, and tertiary alcohols?

Accepted Answer

Lucas reagent

Answer

Jones reagent

Answer

Tollens reagent

Answer

Benedict's reagent

Question 28

Which of the following is the most reactive towards electrophilic aromatic substitution due to its electron-donating group?

Accepted Answer

Phenol

Answer

Ethanol

Answer

Dimethyl ether

Answer

Benzene

Question 29

In the Fischer esterification reaction, which of the following is the product formed by the reaction between an alcohol and a carboxylic acid?

Accepted Answer

Ester

Answer

Ether

Answer

Amide

Answer

Ketone

Question 30

Which of the following compounds is most likely to undergo dehydration to form an alkene due to carbocation stability?

Accepted Answer

Tertiary alcohol

Answer

Primary alcohol

Answer

Secondary alcohol

Answer

Phenol

Question 31

Which reaction is used to convert a primary alcohol to an aldehyde?

Accepted Answer

Oxidation with KMnO4

Answer

Reduction with LiAlH4

Answer

Dehydration with H2SO4

Answer

Esterification with CH3COOH

Question 32

Which of the following is a physical property of phenols due to hydrogen bonding?

Accepted Answer

High boiling point

Answer

Low solubility in water

Answer

Acidic nature

Answer

Sweet odor

Question 33

What is the product of the reaction between phenol and NaOH?

Accepted Answer

Phenoxide ion

Answer

Phenol ester

Answer

Phenol ether

Answer

Phenol alcohol

Question 34

Provide the IUPAC name for the following substituted phenol: 2,4,6-trimethylphenol

Accepted Answer

2,4,6-Trimethylphenol

Answer

2,6-Dimethyl-4-methylphenol

Answer

Trimethylbenzene

Answer

2,4,6-Hydroxytrimethylbenzene

Question 35

Which of the following reactions represents the Williamson ether synthesis?

Accepted Answer

Reaction of an alkoxide ion with a primary alkyl halide

Answer

Reaction of an alcohol with a strong acid

Answer

Reaction of an alcohol with an aldehyde

Question 36

Which of the following compounds is most acidic due to the resonance stabilization of its conjugate base?

Accepted Answer

Phenol

Answer

2-propanol

Answer

Ethanol

Answer

1-propanol

Question 37

Which of the following compounds can undergo electrophilic aromatic substitution reactions due to the presence of an activated benzene ring?

Accepted Answer

Phenol

Answer

Ethanol

Answer

2-propanol

Answer

1-propanol

Question 38

Which of the following compounds is classified as a tertiary alcohol based on the number of alkyl groups attached to the carbon bearing the hydroxyl group?

Accepted Answer

(CH3)3COH

Answer

CH3CH2OH

Answer

CH3CH2CH2OH

Answer

CH3CH(OH)CH3

Question 39

Which of the following reactions is commonly used to convert an alcohol to an alkene?

Accepted Answer

Dehydration

Answer

Substitution

Answer

Oxidation

Answer

Reduction

Question 40

Which of the following compounds is an example of an aromatic ether?

Accepted Answer

Anisole

Answer

1-propanol

Answer

Diethyl ether

Answer

2-propanol

Question 41

Which of the following statements accurately describes the acidity of phenols?

Accepted Answer

Phenols are more acidic than alcohols due to the resonance stabilization of the phenoxide ion.

Answer

Phenols are less acidic than alcohols.

Answer

Phenols are neutral compounds.

Answer

Phenols are basic compounds.

Question 42

Which of the following reactions represents the Friedel-Crafts acylation reaction?

Accepted Answer

Reaction of benzene with an acyl chloride in the presence of a Lewis acid catalyst.

Answer

Reaction of benzene with an alkyl halide in the presence of a Lewis acid catalyst.

Answer

Reaction of phenol with an acyl chloride in the presence of a Lewis acid catalyst.

Question 43

Which of the following is NOT a characteristic of alcohols?

Accepted Answer

They are generally acidic.

Answer

They contain a hydroxyl (-OH) group.

Answer

They can form hydrogen bonds.

Answer

They are soluble in water (to varying degrees).

Question 44

The IUPAC name for the alcohol with the formula CH3CH2CH2OH is:

Accepted Answer

1-propanol

Answer

Isopropanol

Answer

Propanol

Answer

Ethanol

Question 45

Which of the following alcohols is most likely to undergo oxidation to form a ketone?

Accepted Answer

2-butanol

Answer

1-butanol

Answer

tert-butanol

Question 46

Phenols differ from alcohols in that they:

Accepted Answer

have the hydroxyl group directly attached to an aromatic ring.

Answer

are less acidic.

Answer

are not capable of hydrogen bonding.

Question 47

The reaction of an alcohol with a carboxylic acid in the presence of an acid catalyst produces:

Accepted Answer

An ester

Answer

An aldehyde

Answer

An ether

Answer

A ketone

Question 48

Which of the following is NOT a common method for preparing ethers?

Accepted Answer

Dehydration of a ketone.

Answer

Reaction of an alcohol with an alkyl halide.

Answer

Acid-catalyzed dehydration of alcohols.

Answer

Williamson ether synthesis.

Question 49

Ethers are generally considered to be:

Accepted Answer

relatively inert.

Answer

prone to oxidation.

Answer

highly acidic.

Answer

readily hydrolyzed.

Question 50

Which of the following statements is TRUE regarding the boiling point of ethers compared to alcohols with similar molecular weights?

Accepted Answer

Ethers have lower boiling points than alcohols.

Answer

Ethers have higher boiling points than alcohols.

Answer

Boiling points are not related to molecular weight.

Answer

Boiling points are similar for ethers and alcohols.

Question 51

A common example of an ether used as a general anesthetic is:

Accepted Answer

Diethyl ether

Answer

Ethanol

Answer

Phenol

Answer

Methanol

Question 52

The reaction of phenol with bromine in the presence of a Lewis acid catalyst results in:

Accepted Answer

Electrophilic aromatic substitution

Answer

Nucleophilic aromatic substitution

Answer

Addition reaction