Question 1

Which of the following statements best explains why phenol is more acidic than ethanol?

Accepted Answer

The phenoxide ion formed after deprotonation is stabilized by resonance in the aromatic ring.

Question 2

Which reagent is commonly used to reduce a carboxylic acid to a primary alcohol?

Accepted Answer

$$\mathrm{$$LiAlH_4$$} in $$ether

Question 3

What is the major product when 2-methylbutan-2-ol is dehydrated with $$\mathrm{H_2SO_4}$$ and heat?

Accepted Answer

2-Methylbut-2-ene (trisubstituted alkene)

Question 4

Which of the following compounds will NOT undergo oxidation with $$[O] to $$form a carbonyl compound?

Accepted Answer

Tertiary alcohol

Question 5

Why does water have a much higher boiling point than methane, even though both are small molecules?

Accepted Answer

Water molecules form strong hydrogen bonds, while methane molecules only experience weak London dispersion forces.

Question 6

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

$$\mathrm{HOCH_2CH_2OH}$$

Accepted Answer

Ethylene glycol

Question 7

A Grignard reagent is prepared by reacting an alkyl halide with magnesium in ether. Which of the following is a correct general formula for a Grignard reagent?

Accepted Answer

$$\mathrm{R-MgX}$$

Question 8

Which of the following best describes the role of $$\mathrm{H_2SO_4} in $$the hydration of 1-methylcyclohexene to 1-methylcyclohexanol?

Accepted Answer

It acts as a catalyst to protonate the alkene and facilitate nucleophilic attack by water.

Question 9

Which of the following ethers is most likely to undergo cleavage by concentrated $$\mathrm{HI}$$ via an $$\mathrm{S_N2}$$ mechanism?

Accepted Answer

Methyl ethyl ether

Question 10

What is the product when 1-bromobutane reacts with o-nitrophenol in the presence of $$\mathrm{K_2CO_3} in $$acetone?

Accepted Answer

Butyl o-nitrophenyl ether

Question 11

Which of the following statements about the oxidation of alcohols is correct?

Accepted Answer

Primary alcohols are oxidized to aldehydes and then to carboxylic acids.

Question 12

Which of the following is a correct explanation for why the density of ice is lower than that of liquid water at the melting point?

Accepted Answer

Ice has a more open, hydrogen-bonded structure that creates more empty space.

Question 13

Which of the following is the correct product when ethyl pentanoate reacts with a Grignard reagent ($$\mathrm{CH_3MgBr}) $$followed by hydrolysis?

Accepted Answer

2-Methylhexan-2-ol

Question 14

Which of the following is a property shared by alcohols and phenols but NOT by ethers?

Accepted Answer

Ability to form hydrogen bonds with themselves

Question 15

Which of the following best describes the nucleophilic attack on an epoxide under basic conditions?

Accepted Answer

The nucleophile attacks the less hindered carbon atom via an $$\mathrm{S_N2}$$ mechanism.

Question 16

Which of the following is the correct product when cyclopentanol is treated with sodium hydride ($$\mathrm{NaH}) $$followed by methyl iodide ($$\mathrm{CH_3I}$$)?

Accepted Answer

Cyclopentyl methyl ether

Question 17

Which of the following statements about nitrophenol is correct?

Accepted Answer

Nitrophenol is more acidic than phenol due to electron-withdrawing nitro groups.

Question 18

Which of the following is the correct IUPAC name for $$\mathrm{CH_2$=CHCH_2OH}$$?

Accepted Answer

Allyl alcohol (prop-2-en-1-ol)

Question 19

Which of the following is a correct statement about the oxidation of secondary alcohols?

Accepted Answer

Secondary alcohols are oxidized to ketones.

Alcohols, Phenols, Ethers, and Their Sulfur Analogs: Structure, Properties, and Reactions

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