Question 1

Which of the following best describes a phenol?

Accepted Answer

A compound with a hydroxyl group attached directly to an aromatic ring.

Question 2

What is the correct IUPAC name for the following compound: $$\mathrm{(CH_3$)_2C(OH)CH_2CH_3}$$?

Accepted Answer

Question 3

Which of the following alcohols is the most acidic?

Accepted Answer

Phenol ($$\mathrm{C_6H_5OH})$$

Question 4

Which of the following best explains why phenol is much more acidic than cyclohexanol?

Accepted Answer

Phenol's conjugate base is stabilized by resonance with the aromatic ring.

Question 5

What is the product of the following reaction: $$\mathrm{CH_3CH_2Br + NaOH \rightarrow}$$ ?

Accepted Answer

$$\mathrm{CH_3CH_2OH}$$

Question 6

Which reagent is commonly used to reduce a ketone to a secondary alcohol?

Accepted Answer

$$\mathrm{$$NaBH_4$$}$$

Question 7

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

Accepted Answer

Alcohols with short hydrocarbon chains are more soluble in water due to hydrogen bonding.

Question 8

Which of the following is a correct product of the reaction: $$\mathrm{CH_3COCH_3 + CH_3MgBr \xrightarrow{1.\ H_2O} }$$ ?

Accepted Answer

$$\mathrm{(CH_3$)_3COH}$$

Question 9

Which of the following best describes the effect of electron-withdrawing groups on the acidity of alcohols?

Accepted Answer

They decrease the pK$$_a by $$stabilizing the alkoxide ion.

Question 10

Which of the following is the correct order of acidity (from strongest to weakest) for the following alcohols: ethanol, phenol, 2,2,2-trifluoroethanol, tert-butanol?

Accepted Answer

Phenol \u003e 2,2,2-Trifluoroethanol \u003e Ethanol \u003e tert-Butanol

Question 11

Which of the following reagents can be used to convert a primary alcohol to a carboxylic acid?

Accepted Answer

$$\mathrm{$$CrO_3$$} in $$aqueous acid

Question 12

What is the main reason tertiary alcohols do not undergo oxidation under normal conditions?

Accepted Answer

They lack an alpha hydrogen.

Question 13

Which of the following is a correct statement about the use of protecting groups in alcohol chemistry?

Accepted Answer

Protecting groups prevent the alcohol from reacting during certain steps of a synthesis.

Question 14

Which of the following best describes the mechanism of the reaction between an alcohol and thionyl chloride ($$\mathrm{$$SOCl_2$$}) in $$pyridine?

Accepted Answer

An $$\mathrm{S_N2}$$ mechanism with inversion of configuration.

Question 15

Which of the following is a product of the oxidation of phenol?

Accepted Answer

Benzoquinone

Question 16

Which of the following best explains why sodium borohydride ($$\mathrm{$$NaBH_4$$}) is $$less reactive than lithium aluminum hydride ($$\mathrm{$$LiAlH_4$$}$$)?

Accepted Answer

Aluminum is less electronegative than boron, making $$\mathrm{$$LiAlH_4$$} a $$stronger hydride donor.

Question 17

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

Accepted Answer

They are oxidized to ketones.

Question 18

Which of the following is a correct product of the reaction: $$\mathrm{CH_3CH_2OH + PCC}$$ ?

Accepted Answer

$$\mathrm{CH_3CHO}$$

Question 19

Which of the following is a correct statement about the use of Grignard reagents in alcohol synthesis?

Accepted Answer

Grignard reagents react with carbonyl compounds to form alcohols after hydrolysis.

Alcohols and Phenols: Structure, Nomenclature, Properties, and Synthesis

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