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Organic Chemistry II: Alcohols, Phenols, and Ethers - SS2 Chemistry Past Questions and Answers - page 1

1

Which of the following compounds is an alcohol?

 

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A

Ethanol

 

B

Propane

 

C

Butanoic acid

D

Methane

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2

What is the general formula for alcohols?

 

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A

CnH2n

 

B

CnH2n+2

 

C

CnH2n+1OH

 

D

CnH2n-2

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3

How are alcohols named using IUPAC nomenclature?

 

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A

The suffix -ol is added to the name of the parent hydrocarbon chain.

 

B

The prefix hydroxy- is added to the name of the parent hydrocarbon chain.

 

C

The prefix alkoxy- is added to the name of the parent hydrocarbon chain.

 

D

The suffix -alcohol is added to the name of the parent hydrocarbon chain.

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4

Which of the following alcohols is a primary alcohol?

 

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A

Methanol

 

B

Ethanol

 

C

Isopropyl alcohol

 

D

Tertiary butyl alcohol

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5

Which statement is true regarding the physical properties of alcohol?

 

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A

Alcohols have higher boiling points than hydrocarbons of similar molecular weight.

 

B

Alcohols have lower boiling points than hydrocarbons of similar molecular weight.

 

C

Alcohols are highly soluble in nonpolar solvents.

 

D

Alcohols have low melting points.

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6

Which statement is true regarding the acidity of alcohols?

 

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A

Alcohols are weak acids and do not easily donate protons.

 

B

Alcohols are strong acids and readily donate protons.

 

C

Alcohols do not have any acidic properties.

 

D

Alcohols can only act as bases, not acids.

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7

Which statement is true regarding the acidity of alcohols?

 

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A

Alcohols are weak acids and do not easily donate protons.

 

B

Alcohols are strong acids and readily donate protons.

 

C

Alcohols do not have any acidic properties.

 

D

Alcohols can only act as bases, not acids.

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8

Which of the following reactions is characteristic of alcohols?

 

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A

Oxidation to form aldehydes or ketones.

 

B

Halogenation to form alkyl halides.

 

C

Substitution to form esters.

 

D

Elimination to form alkenes.

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9

Which of the following alcohols is a secondary alcohol?

 

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A

Methanol

 

B

Ethanol

 

C

Isopropanol

 

D

Butanol

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10

Which of the following alcohols is commonly used as a disinfectant?

 

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A

Methanol

 

B

Ethanol

 

C

Propanol

 

D

Butanol

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