题目内容

Which of the following compounds will react most rapidly with HCl?()

A. 5-methyl-1-hexene
B. 4-methyl-1-hexene
C. E-5-methyl-2-hexene
D. E-2-methyl-3-hexene
E. 2-methyl-2-hexene

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What is the major product from the acid-catalyzed hydration of 2-methyl-2-pentene? ()

A. 2-methylpentane
B. 2-methyl-1-pentanol
C. 2-methyl-2-pentanol
D. 2-methyl-3-pentanol
E. 1-methoxypentane

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Identify the true statements in the mechanism in the addition of water to an alkene. ()

A. The addition of the electrophile is a slow step.
B. The addition of the nucleophile is a fast step.
C. A carbocation is formed as an intermediate.
D. Water abstracts the extra proton from the protonated alcohol.
E. All of the above

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Give the product for the reaction of 1-butene with methanol in the presence of acid. The mechanism is the same as the mechanism for the addition of water to alkenes. ()

A. 1-ethoxybutane
B. 2-ethoxybutane
C. 1-methoxybutane
D. 2-methoxybutane
E. 1-butanol

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How many isomers with a molecular formula of C5H8 contain a terminal alkyne? ()

A. 1
B. 2
C. 3
D. 4
E. 5

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Which of the following compounds will react most rapidly with HCl?()

A. 5-methyl-1-hexene B. 4-methyl-1-hexene C. E-5-methyl-2-hexene D. E-2-methyl-3-hexene E. 2-methyl-2-hexene

What is the major product from the acid-catalyzed hydration of 2-methyl-2-pentene? ()

Identify the true statements in the mechanism in the addition of water to an alkene. ()

Give the product for the reaction of 1-butene with methanol in the presence of acid. The mechanism is the same as the mechanism for the addition of water to alkenes. ()

How many isomers with a molecular formula of C5H8 contain a terminal alkyne? ()

A. 5-methyl-1-hexene
B. 4-methyl-1-hexene
C. E-5-methyl-2-hexene
D. E-2-methyl-3-hexene
E. 2-methyl-2-hexene